{"id":1885,"date":"2026-11-03T17:00:00","date_gmt":"2026-11-03T09:00:00","guid":{"rendered":"https:\/\/www.jingpengpcb.com\/?p=1885"},"modified":"2026-10-08T20:16:05","modified_gmt":"2026-10-08T12:16:05","slug":"impedance-tolerance-10-percent","status":"publish","type":"post","link":"https:\/\/www.jingpengpcb.com\/en\/blog\/impedance-tolerance-10-percent\/","title":{"rendered":"PCB\u963b\u6297\u8bef\u5dee\u4e3a\u4ec0\u4e48\u662f\u00b110%\uff1f\u963b\u6297\u53d8\u5316\u4e0e\u4fe1\u53f7\u53cd\u5c04\u7684\u5173\u7cfb"},"content":{"rendered":"<style>\n.jp-tw{overflow-x:auto;margin:26px 0;-webkit-overflow-scrolling:touch;}\n.jp-tw table{border-collapse:collapse;width:100%;min-width:560px;font-size:15px;line-height:1.65;background:#fff;}\n.jp-tw th,.jp-tw td{border:1px solid #dde3ea;padding:11px 14px;text-align:left;vertical-align:top;}\n.jp-tw thead th{background:#eef2f7;color:#1b2733;font-weight:700;white-space:nowrap;border-bottom:2px solid #c9d3de;}\n.jp-tw tbody tr:nth-child(even){background:#fafbfc;}\n.jp-tw tbody tr:hover{background:#f1f5fa;}\n.jp-tw tbody td:first-child{font-weight:600;color:#1b2733;}\n@media(max-width:767px){.jp-tw table{font-size:14px;min-width:520px;}.jp-tw th,.jp-tw td{padding:9px 11px;}}\n<\/style>\n<p>\u5728PCB\uff08Printed Circuit Board\uff0c\u5370\u5237\u7535\u8def\u677f\uff09\u8bbe\u8ba1\u4e2d\uff0c\u963b\u6297\u5339\u914d\u662f\u4e00\u4e2a\u81f3\u5173\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u5c24\u5176\u662f\u5728\u9ad8\u901f\u6570\u5b57\u7535\u8def\u548c\u5c04\u9891\u7535\u8def\u4e2d\u3002\u963b\u6297\u7684\u53d8\u5316\u53ef\u4ee5\u5bfc\u81f4\u4fe1\u53f7\u53cd\u5c04\u566a\u58f0\uff0c\u5f71\u54cd\u7535\u8def\u6027\u80fd\u3002\u672c\u6587\u5c06\u8be6\u7ec6\u63a2\u8ba8\u963b\u6297\u53d8\u5316\u6b21\u6570\u5bf9\u4fe1\u53f7\u53cd\u5c04\u7684\u5f71\u54cd\u4ee5\u53ca\u5982\u4f55\u5728PCB\u8bbe\u8ba1\u4e2d\u907f\u514d\u8fd9\u4e00\u95ee\u9898\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" class=\"alignnone size-large wp-image-8607\" src=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/factors-affecting-pcb-impedance.jpg\" alt=\"4 Major Factors Affecting PCB Impedance\" srcset=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/factors-affecting-pcb-impedance.jpg 1200w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/factors-affecting-pcb-impedance-300x169.jpg 300w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/factors-affecting-pcb-impedance-1024x576.jpg 1024w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/factors-affecting-pcb-impedance-768x432.jpg 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<h2>\u8fdb\u9636\uff1a\u53cd\u5c04\u662f\u600e\u4e48\u7b97\u51fa\u6765\u7684<\/h2>\n<p>\u4fe1\u53f7\u5728\u963b\u6297\u7a81\u53d8\u5904\u4f1a\u53d1\u751f\u53cd\u5c04\uff0c\u53cd\u5c04\u5f3a\u5ea6\u7531\u53cd\u5c04\u7cfb\u6570\u51b3\u5b9a\u3002\u7406\u89e3\u8fd9\u4e2a\u516c\u5f0f\uff0c\u5c31\u80fd\u7406\u89e3\u4e3a\u4ec0\u4e48 10% \u662f\u4e00\u4e2a\u5e38\u7528\u7684\u95e8\u69db\uff1a<\/p>\n<div class=\"jp-tw\">\n<table>\n<thead>\n<tr>\n<th>\u963b\u6297\u504f\u5dee<\/th>\n<th>\u53cd\u5c04\u7cfb\u6570\uff08\u7ea6\uff09<\/th>\n<th>\u53cd\u5c04\u566a\u58f0\u5360\u6446\u5e45<\/th>\n<th>\u662f\u5426\u53ef\u63a5\u53d7<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u00b12%<\/td>\n<td>\u7ea6 1%<\/td>\n<td>\u7ea6 1%<\/td>\n<td>Great<\/td>\n<\/tr>\n<tr>\n<td>\u00b15%<\/td>\n<td>\u7ea6 2.5%<\/td>\n<td>\u7ea6 2.5%<\/td>\n<td>\u597d<\/td>\n<\/tr>\n<tr>\n<td>\u00b110%<\/td>\n<td>\u7ea6 5%<\/td>\n<td>\u7ea6 5%<\/td>\n<td>\u5e38\u7528\u566a\u58f0\u9884\u7b97\u4e0a\u9650<\/td>\n<\/tr>\n<tr>\n<td>\u00b120%<\/td>\n<td>\u7ea6 9%<\/td>\n<td>\u7ea6 9%<\/td>\n<td>\u8d85\u6807<\/td>\n<\/tr>\n<tr>\n<td>\u00b130%<\/td>\n<td>\u7ea6 13%<\/td>\n<td>\u7ea6 13%<\/td>\n<td>\u4e25\u91cd\u8d85\u6807<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u53ef\u4ee5\u770b\u5230\uff0c<strong>\u53cd\u5c04\u7cfb\u6570\u5927\u81f4\u7b49\u4e8e\u963b\u6297\u504f\u5dee\u7684\u4e00\u534a<\/strong>\u3002\u56e0\u6b64\u5f53\u566a\u58f0\u9884\u7b97\u9650\u5b9a\u5728\u7535\u538b\u6446\u5e45\u7684 5% \u65f6\uff0c\u5bf9\u5e94\u7684\u963b\u6297\u504f\u5dee\u5c31\u662f 10%\u2014\u2014\u8fd9\u5c31\u662f \u00b110% \u8fd9\u4e2a\u5e38\u89c1\u6307\u6807\u7684\u7531\u6765\u3002<\/p>\n<ul>\n<li><strong>\u53cd\u5c04\u7cfb\u6570 = (Z2 \u2212 Z1) \/ (Z2 + Z1)<\/strong>\uff1a\u963b\u6297\u5dee\u8d8a\u5927\u3001\u7edd\u5bf9\u503c\u8d8a\u5c0f\uff0c\u53cd\u5c04\u8d8a\u5f3a\uff1b<\/li>\n<li><strong>\u6b63\u53cd\u5c04\u4e0e\u8d1f\u53cd\u5c04<\/strong>\uff1a\u963b\u6297\u53d8\u5927\u4ea7\u751f\u6b63\u53cd\u5c04\uff0c\u963b\u6297\u53d8\u5c0f\u4ea7\u751f\u8d1f\u53cd\u5c04\uff1b<\/li>\n<li><strong>\u591a\u6b21\u53cd\u5c04\u4f1a\u53e0\u52a0\u6216\u62b5\u6d88<\/strong>\uff1a\u53d6\u51b3\u4e8e\u95f4\u8ddd\u4e0e\u65f6\u5e8f\uff0c\u8fd9\u4e5f\u662f\u4e8c\u6b21\u53d8\u5316\u53ef\u80fd\u300c\u81ea\u6108\u300d\u7684\u539f\u7406\u3002<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"720\" class=\"alignnone size-large wp-image-6520\" src=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/what-is-pcb-impedance.jpg\" alt=\"PCB Impedance\" srcset=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/what-is-pcb-impedance.jpg 1280w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/what-is-pcb-impedance-300x169.jpg 300w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/what-is-pcb-impedance-1024x576.jpg 1024w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/what-is-pcb-impedance-768x432.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p>For the basics of impedance, see<a href=\"\/en\/blog\/what-is-pcb-impedance\/\">What Is PCB Impedance?<\/a>\uff1b\u5f71\u54cd\u56e0\u7d20\u89c1<a href=\"\/en\/blog\/factors-affecting-pcb-impedance\/\">4 Major Factors Affecting PCB Impedance<\/a>\u3002<\/p>\n<h2>1. \u963b\u6297\u53d8\u5316\u7684\u79cd\u7c7b<\/h2>\n<p>\u963b\u6297\u53d8\u5316\u53ef\u4ee5\u5206\u4e3a\u4e24\u79cd\u4e3b\u8981\u7c7b\u578b\uff1a\u4e00\u6b21\u963b\u6297\u53d8\u5316\u548c\u4e8c\u6b21\u963b\u6297\u53d8\u5316\u3002<\/p>\n<h3>1.1 \u4e00\u6b21\u963b\u6297\u53d8\u5316<\/h3>\n<p>\u4e00\u6b21\u963b\u6297\u53d8\u5316\u6307\u7684\u662f\u963b\u6297\u5728\u6574\u4e2a\u7ebf\u8def\u4e2d\u53ea\u53d1\u751f\u4e00\u6b21\u53d8\u5316\u3002\u4f8b\u5982\uff0c\u7ebf\u5bbd\u4ece8mil\u53d8\u52306mil\u540e\uff0c\u4e00\u76f4\u4fdd\u63016mil\u5bbd\u5ea6\u3002\u5bf9\u4e8e\u8fd9\u79cd\u60c5\u51b5\uff0c\u8981\u8fbe\u5230\u7a81\u53d8\u5904\u4fe1\u53f7\u53cd\u5c04\u566a\u58f0\u4e0d\u8d85\u8fc7\u7535\u538b\u6446\u5e45\u76845%\u8fd9\u4e00\u566a\u58f0\u9884\u7b97\u8981\u6c42\uff0c\u963b\u6297\u53d8\u5316\u5fc5\u987b\u5c0f\u4e8e10%\u3002\u4f46\u6709\u65f6\u5f88\u96be\u505a\u5230\u8fd9\u4e00\u70b9\uff0c\u7279\u522b\u662f\u5728\u4f7f\u7528FR4\u677f\u6750\u4e0a\u7684\u5fae\u5e26\u7ebf\u65f6\u3002\u4e3e\u4f8b\u6765\u8bf4\uff0c\u5982\u679c\u7ebf\u5bbd\u4ece8mil\u53d8\u4e3a6mil\uff0c\u7279\u6027\u963b\u6297\u4f1a\u53d1\u751f\u663e\u8457\u53d8\u5316\uff0c\u8fbe\u523020%\u3002\u8fd9\u5c06\u5bfc\u81f4\u53cd\u5c04\u4fe1\u53f7\u7684\u5e45\u5ea6\u8d85\u6807\u3002<\/p>\n<h3>1.2 \u4e8c\u6b21\u963b\u6297\u53d8\u5316<\/h3>\n<p>\u4e8c\u6b21\u963b\u6297\u53d8\u5316\u662f\u6307\u963b\u6297\u5728\u7ebf\u8def\u4e2d\u591a\u6b21\u53d8\u5316\u3002\u4f8b\u5982\uff0c\u7ebf\u5bbd\u4ece8mil\u53d8\u52306mil\uff0c\u7136\u540e\u5728\u62c9\u51fa2cm\u540e\u53c8\u53d8\u56de8mil\u3002\u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u4e24\u4e2a\u7aef\u70b9\u5904\u90fd\u4f1a\u53d1\u751f\u53cd\u5c04\uff0c\u4e00\u6b21\u662f\u963b\u6297\u589e\u52a0\u5bfc\u81f4\u7684\u6b63\u53cd\u5c04\uff0c\u63a5\u7740\u662f\u963b\u6297\u51cf\u5c0f\u5bfc\u81f4\u7684\u8d1f\u53cd\u5c04\u3002\u5982\u679c\u4e24\u6b21\u53cd\u5c04\u7684\u65f6\u95f4\u95f4\u9694\u8db3\u591f\u77ed\uff0c\u5b83\u4eec\u53ef\u80fd\u76f8\u4e92\u62b5\u6d88\uff0c\u51cf\u5c0f\u5f71\u54cd\u3002<\/p>\n<h2>\u8fdb\u9636\uff1a\u9888\u72b6\u6bb5\u957f\u5ea6\u4e3a\u4ec0\u4e48\u662f\u5173\u952e\u53d8\u91cf<\/h2>\n<p>\u628a\u300c\u7ebf\u5bbd\u4ece 8 mil \u53d8 6 mil \u518d\u53d8\u56de 8 mil\u300d\u8fd9\u6bb5\u7a84\u7ebf\u770b\u4f5c\u4e00\u4e2a\u9888\u72b6\u6bb5\uff0c\u5b83\u4ea7\u751f\u7684\u4e24\u4e2a\u53cd\u5c04\u70b9\u4f1a\u76f8\u4e92\u4f5c\u7528\u3002\u7ed3\u679c\u53d6\u51b3\u4e8e<strong>\u9888\u72b6\u6bb5\u7684\u65f6\u5ef6\u4e0e\u4fe1\u53f7\u4e0a\u5347\u65f6\u95f4\u7684\u6bd4\u4f8b<\/strong>\uff1a<\/p>\n<div class=\"jp-tw\">\n<table>\n<thead>\n<tr>\n<th>\u9888\u72b6\u6bb5\u65f6\u5ef6 \/ \u4e0a\u5347\u65f6\u95f4<\/th>\n<th>\u53cd\u5c04\u8868\u73b0<\/th>\n<th>\u8bbe\u8ba1\u7ed3\u8bba<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u8fdc\u5c0f\u4e8e 20%<\/td>\n<td>\u4e24\u4e2a\u53cd\u5c04\u51e0\u4e4e\u91cd\u53e0\uff0c\u76f8\u4e92\u62b5\u6d88<\/td>\n<td>\u5f71\u54cd\u53ef\u5ffd\u7565<\/td>\n<\/tr>\n<tr>\n<td>\u63a5\u8fd1 20%<\/td>\n<td>\u90e8\u5206\u62b5\u6d88\uff0c\u5904\u4e8e\u4e34\u754c<\/td>\n<td>\u9700\u8bc4\u4f30<\/td>\n<\/tr>\n<tr>\n<td>\u660e\u663e\u5927\u4e8e 20%<\/td>\n<td>\u4e24\u4e2a\u53cd\u5c04\u5206\u79bb\uff0c\u5404\u81ea\u53ef\u89c1<\/td>\n<td>\u566a\u58f0\u53e0\u52a0\uff0c\u9700\u8981\u4fee\u6b63<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u8fd9\u6761\u89c4\u5f8b\u6709\u4e00\u4e2a\u975e\u5e38\u5b9e\u7528\u7684\u63a8\u8bba\uff1a<strong>\u5982\u679c\u963b\u6297\u7a81\u53d8\u65e0\u6cd5\u907f\u514d\uff0c\u5c31\u628a\u5b83\u505a\u5f97\u8db3\u591f\u77ed<\/strong>\u3002\u77ed\u5230\u4e24\u4e2a\u53cd\u5c04\u5728\u65f6\u95f4\u4e0a\u65e0\u6cd5\u5206\u8fa8\u65f6\uff0c\u5b83\u4eec\u4f1a\u4e92\u76f8\u62b5\u6d88\uff0c\u5b9e\u9645\u5f71\u54cd\u8fdc\u5c0f\u4e8e\u9759\u6001\u8ba1\u7b97\u7684\u7ed3\u679c\u3002<\/p>\n<ol>\n<li><strong>\u5148\u4f30\u7b97\u7a81\u53d8\u5904\u7684\u65f6\u5ef6<\/strong>\uff1a\u957f\u5ea6\u9664\u4ee5\u4fe1\u53f7\u4f20\u64ad\u901f\u5ea6\uff1b<\/li>\n<li><strong>\u4e0e\u4e0a\u5347\u65f6\u95f4\u7684 20% \u6bd4\u8f83<\/strong>\uff1a\u5c0f\u4e8e\u5219\u53ef\u63a5\u53d7\uff1b<\/li>\n<li><strong>\u8d85\u6807\u5219\u7f29\u77ed\u7a81\u53d8\u6bb5<\/strong>\uff1a\u800c\u4e0d\u662f\u5355\u7eaf\u628a\u7ebf\u5bbd\u6539\u56de\u53bb\u3002<\/li>\n<\/ol>\n<ul>\n<li><strong>BGA \u6247\u51fa\u533a\u662f\u5178\u578b\u573a\u666f<\/strong>\uff1a\u5f15\u811a\u95f4\u8d70\u7ebf\u88ab\u8feb\u53d8\u7a84\uff0c\u53ea\u8981\u9888\u72b6\u6bb5\u77ed\uff0c\u5f71\u54cd\u53ef\u63a7\uff1b<\/li>\n<li><strong>\u8fc7\u5b54\u4e5f\u662f\u9888\u72b6\u6bb5<\/strong>\uff1a\u8fc7\u5b54\u7684\u963b\u6297\u901a\u5e38\u4f4e\u4e8e\u8d70\u7ebf\uff0c\u77ed\u8fc7\u5b54\u7684\u5f71\u54cd\u56e0\u6b64\u6709\u9650\uff1b<\/li>\n<li><strong>\u957f\u8ddd\u79bb\u8d70\u7a84\u7ebf\u624d\u662f\u95ee\u9898<\/strong>\uff1a\u6b64\u65f6\u53cd\u5c04\u5b8c\u5168\u5206\u79bb\uff0c\u566a\u58f0\u53e0\u52a0\u3002<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"1280\" height=\"720\" class=\"alignnone size-large wp-image-8849\" src=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/nine-high-speed-pcb-signal-routing-rules.jpg\" alt=\"Nine Rules for High-Speed PCB Signal Tracing\" srcset=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/nine-high-speed-pcb-signal-routing-rules.jpg 1280w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/nine-high-speed-pcb-signal-routing-rules-300x169.jpg 300w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/nine-high-speed-pcb-signal-routing-rules-1024x576.jpg 1024w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/nine-high-speed-pcb-signal-routing-rules-768x432.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/p>\n<p>For high-speed routing rules, see<a href=\"\/en\/blog\/nine-high-speed-pcb-signal-routing-rules\/\">Nine Rules for High-Speed PCB Signal Tracing<\/a>; For signal integrity, see<a href=\"\/en\/blog\/pcb-design-signal-integrity\/\">Signal Integrity Issues in PCB Design<\/a>\u3002<\/p>\n<h2>2. \u963b\u6297\u53d8\u5316\u6b21\u6570\u4e0e\u4fe1\u53f7\u53cd\u5c04\u7684\u5173\u7cfb<\/h2>\n<p>\u963b\u6297\u53d8\u5316\u6b21\u6570\u4e0e\u4fe1\u53f7\u53cd\u5c04\u7684\u5173\u7cfb\u53d6\u51b3\u4e8e\u591a\u4e2a\u56e0\u7d20\uff0c\u5305\u62ec\u963b\u6297\u53d8\u5316\u7684\u5927\u5c0f\u3001\u4fe1\u53f7\u4e0a\u5347\u65f6\u95f4\u4ee5\u53ca\u7ebf\u5bbd\u53d8\u5316\u7684\u957f\u5ea6\u3002<\/p>\n<h3>2.1 \u963b\u6297\u53d8\u5316\u7684\u5927\u5c0f<\/h3>\n<p>\u963b\u6297\u53d8\u5316\u7684\u5927\u5c0f\u76f4\u63a5\u5f71\u54cd\u4fe1\u53f7\u53cd\u5c04\u7684\u7a0b\u5ea6\u3002\u8f83\u5927\u7684\u963b\u6297\u53d8\u5316\u4f1a\u5bfc\u81f4\u66f4\u663e\u8457\u7684\u53cd\u5c04\u3002\u56e0\u6b64\uff0c\u5728PCB\u8bbe\u8ba1\u4e2d\uff0c\u9700\u8981\u6ce8\u610f\u5c3d\u91cf\u51cf\u5c0f\u963b\u6297\u7684\u53d8\u5316\u3002<\/p>\n<h3>2.2 \u4fe1\u53f7\u4e0a\u5347\u65f6\u95f4<\/h3>\n<p>\u4fe1\u53f7\u7684\u4e0a\u5347\u65f6\u95f4\u4e5f\u662f\u5f71\u54cd\u4fe1\u53f7\u53cd\u5c04\u7684\u56e0\u7d20\u4e4b\u4e00\u3002\u7814\u7a76\u548c\u5b9e\u9a8c\u8868\u660e\uff0c\u53ea\u8981\u963b\u6297\u53d8\u5316\u5904\u7684\u65f6\u5ef6\u5c0f\u4e8e\u4fe1\u53f7\u4e0a\u5347\u65f6\u95f4\u768420%\uff0c\u53cd\u5c04\u4fe1\u53f7\u5c31\u4e0d\u4f1a\u9020\u6210\u95ee\u9898\u3002\u8fd9\u610f\u5473\u7740\uff0c\u5982\u679c\u4fe1\u53f7\u4e0a\u5347\u65f6\u95f4\u4e3a1ns\uff0c\u90a3\u4e48\u963b\u6297\u53d8\u5316\u5904\u7684\u65f6\u5ef6\u5e94\u5c0f\u4e8e0.2ns\uff0c\u5bf9\u5e941.2\u82f1\u5bf8\u7684\u7ebf\u8def\u957f\u5ea6\u3002\u56e0\u6b64\uff0c\u5728\u8bbe\u8ba1\u4e2d\uff0c\u9700\u8981\u8003\u8651\u4fe1\u53f7\u7684\u4e0a\u5347\u65f6\u95f4\u4ee5\u786e\u5b9a\u963b\u6297\u53d8\u5316\u5904\u7684\u65f6\u5ef6\u662f\u5426\u5728\u53ef\u63a5\u53d7\u8303\u56f4\u5185\u3002<\/p>\n<h3>2.3 \u7ebf\u5bbd\u53d8\u5316\u7684\u957f\u5ea6<\/h3>\n<p>\u7ebf\u5bbd\u53d8\u5316\u7684\u957f\u5ea6\u4e5f\u4f1a\u5f71\u54cd\u4fe1\u53f7\u53cd\u5c04\u3002\u5982\u679c\u7ebf\u5bbd\u53d8\u5316\u7684\u9888\u72b6\u90e8\u5206\u957f\u5ea6\u8f83\u957f\uff0c\u90a3\u4e48\u53cd\u5c04\u53ef\u80fd\u4f1a\u66f4\u663e\u8457\u3002\u56e0\u6b64\uff0c\u5728PCB\u8bbe\u8ba1\u4e2d\uff0c\u53ef\u4ee5\u5c1d\u8bd5\u51cf\u5c0f\u7ebf\u5bbd\u53d8\u5316\u7684\u9888\u72b6\u90e8\u5206\u957f\u5ea6\uff0c\u4ee5\u51cf\u5c0f\u53cd\u5c04\u7684\u5f71\u54cd\u3002<\/p>\n<h2>\u8fdb\u9636\uff1a\u5b9e\u9645\u677f\u4e0a\u7684\u963b\u6297\u504f\u5dee\u4ece\u54ea\u91cc\u6765<\/h2>\n<p>\u8bbe\u8ba1\u7b97\u51fa\u6765\u7684\u963b\u6297\u4e0e\u5b9e\u6d4b\u603b\u6709\u5dee\u8ddd\uff0c\u504f\u5dee\u4e3b\u8981\u6765\u81ea\u4ee5\u4e0b\u51e0\u4e2a\u5236\u9020\u73af\u8282\uff1a<\/p>\n<div class=\"jp-tw\">\n<table>\n<thead>\n<tr>\n<th>\u504f\u5dee\u6765\u6e90<\/th>\n<th>\u5178\u578b\u5f71\u54cd\u91cf\u7ea7<\/th>\n<th>\u63a7\u5236\u65b9\u5f0f<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Media Thickness Tolerance<\/td>\n<td>\u6570\u4e2a\u767e\u5206\u70b9<\/td>\n<td>\u538b\u5408\u53c2\u6570\u4e0e\u534a\u56fa\u5316\u7247\u9009\u62e9<\/td>\n<\/tr>\n<tr>\n<td>\u7ebf\u5bbd\u8680\u523b\u504f\u5dee<\/td>\n<td>\u6570\u4e2a\u767e\u5206\u70b9<\/td>\n<td>\u8680\u523b\u8865\u507f\u4e0e\u8fc7\u7a0b\u63a7\u5236<\/td>\n<\/tr>\n<tr>\n<td>\u94dc\u539a\u504f\u5dee<\/td>\n<td>\u8f83\u5c0f<\/td>\n<td>\u6309\u5b9e\u6d4b\u94dc\u539a\u8ba1\u7b97<\/td>\n<\/tr>\n<tr>\n<td>\u4ecb\u7535\u5e38\u6570\u6279\u6b21\u5dee\u5f02<\/td>\n<td>\u6570\u4e2a\u767e\u5206\u70b9<\/td>\n<td>\u56fa\u5b9a\u6750\u6599\u54c1\u724c\u4e0e\u578b\u53f7<\/td>\n<\/tr>\n<tr>\n<td>\u963b\u710a\u5c42\u8986\u76d6<\/td>\n<td>\u5916\u5c42\u6570\u4e2a\u767e\u5206\u70b9<\/td>\n<td>\u7eb3\u5165\u8ba1\u7b97\u6216\u5f00\u7a97<\/td>\n<\/tr>\n<tr>\n<td>\u6d4b\u91cf\u8bef\u5dee<\/td>\n<td>\u89c6\u8bbe\u5907\u4e0e\u65b9\u6cd5<\/td>\n<td>\u7edf\u4e00\u6d4b\u91cf\u89c4\u8303<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u628a\u8fd9\u4e9b\u9879\u53e0\u52a0\u8d77\u6765\uff0c\u5c31\u4e0d\u96be\u7406\u89e3\u4e3a\u4ec0\u4e48\u884c\u4e1a\u666e\u904d\u91c7\u7528 \u00b110% \u4f5c\u4e3a\u6807\u51c6\u5bb9\u5dee\u2014\u2014<strong>\u5b83\u662f\u5728\u5236\u9020\u80fd\u529b\u4e0e\u8bbe\u8ba1\u9700\u6c42\u4e4b\u95f4\u53d6\u5f97\u7684\u5e73\u8861<\/strong>\u3002\u8981\u6c42 \u00b15% \u901a\u5e38\u53ef\u884c\u4f46\u6210\u672c\u4e0a\u5347\uff0c\u8981\u6c42 \u00b17% \u662f\u9ad8\u901f\u573a\u5408\u7684\u5e38\u89c1\u6298\u4e2d\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"675\" class=\"alignnone size-large wp-image-8607\" src=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/factors-affecting-pcb-impedance.jpg\" alt=\"4 Major Factors Affecting PCB Impedance\" srcset=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/factors-affecting-pcb-impedance.jpg 1200w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/factors-affecting-pcb-impedance-300x169.jpg 300w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/factors-affecting-pcb-impedance-1024x576.jpg 1024w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/factors-affecting-pcb-impedance-768x432.jpg 768w\" sizes=\"auto, (max-width: 1200px) 100vw, 1200px\" \/><\/p>\n<p>For impedance and loss, see<a href=\"\/en\/blog\/impedance-and-loss-of-pcb\/\">The Effects of PCB Impedance and Loss on Signals<\/a>\uff1b\u963b\u6297\u5339\u914d\u89c1<a href=\"\/en\/blog\/impedance-matching-and-0-ohm-resistance\/\">Impedance Matching and 0-Ohm Resistors in PCB Design<\/a>\u3002<\/p>\n<h2>3. \u5982\u4f55\u907f\u514d\u4fe1\u53f7\u53cd\u5c04\u566a\u58f0<\/h2>\n<p>\u4e3a\u4e86\u907f\u514d\u4fe1\u53f7\u53cd\u5c04\u566a\u58f0\uff0cPCB\u8bbe\u8ba1\u4eba\u5458\u53ef\u4ee5\u91c7\u53d6\u4ee5\u4e0b\u63aa\u65bd\uff1a<\/p>\n<h3>3.1 \u51cf\u5c0f\u963b\u6297\u53d8\u5316<\/h3>\n<p>\u5c3d\u91cf\u51cf\u5c0f\u963b\u6297\u53d8\u5316\u7684\u5e45\u5ea6\uff0c\u7279\u522b\u662f\u4e00\u6b21\u963b\u6297\u53d8\u5316\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u4f18\u5316\u7ebf\u5bbd\u548c\u7ebf\u95f4\u8ddd\u6765\u5b9e\u73b0\u3002<\/p>\n<h3>3.2 \u8003\u8651\u4fe1\u53f7\u4e0a\u5347\u65f6\u95f4<\/h3>\n<p>\u5728\u8bbe\u8ba1\u4e2d\u8003\u8651\u4fe1\u53f7\u7684\u4e0a\u5347\u65f6\u95f4\uff0c\u786e\u4fdd\u963b\u6297\u53d8\u5316\u5904\u7684\u65f6\u5ef6\u4e0d\u8d85\u8fc7\u4fe1\u53f7\u4e0a\u5347\u65f6\u95f4\u768420%\u3002<\/p>\n<h3>3.3 \u51cf\u5c0f\u7ebf\u5bbd\u53d8\u5316\u7684\u9888\u72b6\u90e8\u5206\u957f\u5ea6<\/h3>\n<p>\u5c3d\u91cf\u51cf\u5c0f\u7ebf\u5bbd\u53d8\u5316\u7684\u9888\u72b6\u90e8\u5206\u957f\u5ea6\uff0c\u4ee5\u964d\u4f4e\u53cd\u5c04\u7684\u5f71\u54cd\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0cPCB\u8bbe\u8ba1\u4e2d\u7684\u53c2\u6570\u4e0d\u53ef\u80fd\u50cf\u7406\u8bba\u4e2d\u90a3\u6837\u7cbe\u786e\u3002\u56e0\u6b64\uff0c\u5728\u5b9e\u9645\u8bbe\u8ba1\u4e2d\uff0c\u9700\u8981\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8fdb\u884c\u9002\u5f53\u7684\u4fee\u8ba2\u548c\u8c03\u6574\u3002<\/p>\n<h2>\u8fdb\u9636\uff1a\u628a\u963b\u6297\u63a7\u5236\u843d\u5230\u5b9e\u5904\u7684\u516d\u4e2a\u52a8\u4f5c<\/h2>\n<ol>\n<li><strong>\u5148\u62ff\u677f\u5382\u53e0\u6784<\/strong>\uff1a\u4e0d\u8981\u81ea\u884c\u5047\u8bbe\u4ecb\u8d28\u539a\u5ea6\uff0c\u7528\u677f\u5382\u7684\u5b9e\u9645\u7269\u6599\u53c2\u6570\u8ba1\u7b97\uff1b<\/li>\n<li><strong>\u7528\u573a\u6c42\u89e3\u5668\u7b97\u7ebf\u5bbd<\/strong>\uff1a\u7ecf\u9a8c\u516c\u5f0f\u5728\u539a\u94dc\u3001\u7ec6\u7ebf\u573a\u5408\u8bef\u5dee\u660e\u663e\uff1b<\/li>\n<li><strong>\u628a\u963b\u710a\u7eb3\u5165\u8ba1\u7b97<\/strong>\uff1a\u5916\u5c42\u8d70\u7ebf\u7684\u963b\u710a\u4f1a\u964d\u4f4e\u963b\u6297\uff1b<\/li>\n<li><strong>\u5728\u677f\u4e0a\u653e\u963b\u6297\u6d4b\u8bd5\u6761<\/strong>\uff1a\u4e0e\u677f\u540c\u6279\u5236\u4f5c\uff0c\u4f5c\u4e3a\u5b9e\u6d4b\u4f9d\u636e\uff1b<\/li>\n<li><strong>\u9996\u677f\u6d4b TDR \u5e76\u53cd\u9988<\/strong>\uff1a\u628a\u504f\u5dee\u56de\u586b\uff0c\u8c03\u6574\u7ebf\u5bbd\u6216\u4ecb\u8d28\uff1b<\/li>\n<li><strong>\u56fa\u5316\u7ecf\u9a8c\u503c<\/strong>\uff1a\u540c\u6750\u6599\u540c\u53e0\u6784\u7684\u4fee\u6b63\u7cfb\u6570\u8bb0\u5f55\u4e0b\u6765\u590d\u7528\u3002<\/li>\n<\/ol>\n<p>\u5176\u4e2d\u7b2c 1 \u6761\u548c\u7b2c 4 \u6761\u6700\u5bb9\u6613\u88ab\u8df3\u8fc7\u3002<strong>\u6ca1\u6709\u677f\u5382\u53e0\u6784\u7684\u8ba1\u7b97\u662f\u81ea\u8bf4\u81ea\u8bdd\uff0c\u6ca1\u6709\u6d4b\u8bd5\u6761\u7684\u963b\u6297\u8981\u6c42\u662f\u65e0\u6cd5\u9a8c\u8bc1\u7684<\/strong>\u3002\u8fd9\u4e24\u9879\u8865\u9f50\uff0c\u963b\u6297\u63a7\u5236\u624d\u771f\u6b63\u5f62\u6210\u95ed\u73af\u3002<\/p>\n<ul>\n<li><strong>When changing layers, you need to add ground vias.<\/strong>\uff1a\u6362\u5c42\u5904\u7684\u56de\u6d41\u8def\u5f84\u5fc5\u987b\u8ddf\u7740\u6362\u5c42\uff1b<\/li>\n<li><strong>Avoid cross-segmentation<\/strong>\uff1a\u53c2\u8003\u5e73\u9762\u4e0d\u8fde\u7eed\u65f6\uff0c\u963b\u6297\u65e0\u4ece\u8c08\u8d77\uff1b<\/li>\n<li><strong>\u5173\u952e\u7f51\u7edc\u5355\u72ec\u6807\u6ce8<\/strong>\uff1a\u53ea\u5bf9\u771f\u6b63\u9700\u8981\u7684\u7f51\u7edc\u63d0\u963b\u6297\u8981\u6c42\uff0c\u907f\u514d\u5168\u677f\u52a0\u4e25\u3002<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" width=\"996\" height=\"561\" class=\"alignnone size-large wp-image-8715\" src=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/pcb-design-signal-integrity.jpg\" alt=\"Signal Integrity Issues in PCB Design\" srcset=\"https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/pcb-design-signal-integrity.jpg 996w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/pcb-design-signal-integrity-300x169.jpg 300w, https:\/\/www.jingpengpcb.com\/wp-content\/uploads\/2023\/08\/pcb-design-signal-integrity-768x433.jpg 768w\" sizes=\"auto, (max-width: 996px) 100vw, 996px\" \/><\/p>\n<p>\u5e38\u89c1\u8bbe\u8ba1\u9519\u8bef\u89c1<a href=\"\/en\/blog\/common-errors-in-printed-circuit-board-design\/\">How to Avoid Common Mistakes in Printed Circuit Board Design<\/a>\uff1b\u5dee\u5206\u5e03\u7ebf\u89c4\u5219\u89c1<a href=\"\/en\/blog\/pcb-wiring-rules-for-single-ended-and-differential-signals\/\">PCB Routing Rules for Single-Ended and Differential Signals<\/a>\u3002<\/p>\n<h2>Conclusion<\/h2>\n<p>\u963b\u6297\u53d8\u5316\u6b21\u6570\u5728PCB\u8bbe\u8ba1\u4e2d\u662f\u4e00\u4e2a\u91cd\u8981\u7684\u8003\u8651\u56e0\u7d20\uff0c\u5b83\u4e0e\u4fe1\u53f7\u53cd\u5c04\u566a\u58f0\u6709\u7740\u5bc6\u5207\u7684\u5173\u7cfb\u3002\u901a\u8fc7\u51cf\u5c0f\u963b\u6297\u53d8\u5316\u3001\u8003\u8651\u4fe1\u53f7\u4e0a\u5347\u65f6\u95f4\u4ee5\u53ca\u51cf\u5c0f\u7ebf\u5bbd\u53d8\u5316\u7684\u9888\u72b6\u90e8\u5206\u957f\u5ea6\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u907f\u514d\u4fe1\u53f7\u53cd\u5c04\u566a\u58f0\uff0c\u63d0\u9ad8PCB\u7535\u8def\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/p>\n<hr \/>\n<h2>\u8fdb\u9636\uff1a\u00b110%\u3001\u00b17%\u3001\u00b15% \u600e\u4e48\u9009<\/h2>\n<div class=\"jp-tw\">\n<table>\n<thead>\n<tr>\n<th>\u5bb9\u5dee<\/th>\n<th>\u9002\u7528\u573a\u5408<\/th>\n<th>Cost Impact<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u00b110%<\/td>\n<td>\u5e38\u89c4\u9ad8\u901f\u6570\u5b57\u3001\u591a\u6570\u6d88\u8d39\u7c7b<\/td>\n<td>\u57fa\u51c6\uff0c\u677f\u5382\u5e38\u89c4\u80fd\u529b<\/td>\n<\/tr>\n<tr>\n<td>\u00b17%<\/td>\n<td>\u9ad8\u901f\u63a5\u53e3\u3001\u8f83\u957f\u94fe\u8def<\/td>\n<td>\u7565\u6709\u4e0a\u5347\uff0c\u9700\u8fc7\u7a0b\u63a7\u5236\u52a0\u5f3a<\/td>\n<\/tr>\n<tr>\n<td>\u00b15%<\/td>\n<td>\u5173\u952e\u5c04\u9891\u94fe\u8def\u3001\u4e25\u82db\u94fe\u8def\u9884\u7b97<\/td>\n<td>\u660e\u663e\u4e0a\u5347\uff0c\u9700\u4e13\u6279\u8c03\u8bd5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>\u9009\u62e9\u7684\u539f\u5219\u662f<strong>\u6309\u9700\u6536\u7d27\uff0c\u800c\u4e0d\u662f\u4e00\u5f8b\u6700\u4e25<\/strong>\u3002\u4e00\u5757\u677f\u4e0a\u901a\u5e38\u53ea\u6709\u5c11\u6570\u7f51\u7edc\u771f\u6b63\u9700\u8981 \u00b15%\uff0c\u5176\u4f59\u7ef4\u6301 \u00b110% \u5373\u53ef\u3002\u628a\u6574\u677f\u90fd\u6309\u6700\u4e25\u8981\u6c42\u4e0b\u53d1\uff0c\u53ea\u4f1a\u63a8\u9ad8\u6210\u672c\u4e0e\u4ea4\u671f\uff0c\u5bf9\u5b9e\u9645\u6027\u80fd\u5e76\u65e0\u5e2e\u52a9\u3002<\/p>\n<p>\u6b64\u5916\u8981\u6ce8\u610f\uff0c\u963b\u6297\u5bb9\u5dee\u53ea\u662f\u4fe1\u53f7\u5b8c\u6574\u6027\u7684\u4e00\u4e2a\u73af\u8282\u3002\u94fe\u8def\u9884\u7b97\u8fd8\u8981\u8003\u8651\u635f\u8017\u3001\u6296\u52a8\u4e0e\u4e32\u6270\uff0c<strong>\u963b\u6297\u8fbe\u6807\u5e76\u4e0d\u7b49\u4e8e\u94fe\u8def\u4e00\u5b9a\u5de5\u4f5c\u6b63\u5e38<\/strong>\uff0c\u6700\u7ec8\u4ecd\u8981\u4ee5\u7cfb\u7edf\u7ea7\u6d4b\u8bd5\u4e3a\u51c6\u3002<\/p>\n<ul>\n<li><strong>\u6309\u63a5\u53e3\u7c7b\u578b\u5b9a\u5bb9\u5dee<\/strong>\uff1a\u4e0d\u540c\u534f\u8bae\u89c4\u8303\u5bf9\u963b\u6297\u4e0e\u56de\u6ce2\u635f\u8017\u6709\u660e\u786e\u8981\u6c42\uff0c\u5148\u67e5\u89c4\u8303\uff1b<\/li>\n<li><strong>\u6309\u94fe\u8def\u957f\u5ea6\u5b9a\u5bb9\u5dee<\/strong>\uff1a\u94fe\u8def\u8d8a\u957f\uff0c\u53cd\u5c04\u7d2f\u79ef\u8d8a\u660e\u663e\uff0c\u5bb9\u5dee\u5e94\u76f8\u5e94\u6536\u7d27\uff1b<\/li>\n<li><strong>\u6309\u6210\u672c\u53cd\u63a8\u53d6\u820d<\/strong>\uff1a\u5bb9\u5dee\u6bcf\u6536\u7d27\u4e00\u6863\uff0c\u5148\u786e\u8ba4\u5e26\u6765\u7684\u6027\u80fd\u63d0\u5347\u662f\u5426\u503c\u5f97\u3002<\/li>\n<\/ul>\n<h2>Frequently Asked Questions<\/h2>\n<h3>1. \u963b\u6297\u53d8\u5316\u6b21\u6570\u5bf9PCB\u8bbe\u8ba1\u6709\u591a\u91cd\u8981\uff1f<\/h3>\n<p>\u963b\u6297\u53d8\u5316\u6b21\u6570\u5728\u9ad8\u901f\u6570\u5b57\u7535\u8def\u548c\u5c04\u9891\u7535\u8def\u7684PCB\u8bbe\u8ba1\u4e2d\u975e\u5e38\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u4eec\u4e0e\u4fe1\u53f7\u53cd\u5c04\u566a\u58f0\u6709\u5173\uff0c\u53ef\u80fd\u5f71\u54cd\u7535\u8def\u6027\u80fd\u3002<\/p>\n<h3>2. \u4e3a\u4ec0\u4e48\u4e00\u6b21\u963b\u6297\u53d8\u5316\u5f88\u5927\u65f6\u4f1a\u4ea7\u751f\u4fe1\u53f7\u53cd\u5c04\u566a\u58f0\uff1f<\/h3>\n<p>\u4e00\u6b21\u963b\u6297\u53d8\u5316\u5f88\u5927\u65f6\uff0c\u53cd\u5c04\u4fe1\u53f7\u7684\u5e45\u5ea6\u4e5f\u4f1a\u5f88\u5927\uff0c\u53ef\u80fd\u8d85\u51fa\u4e86\u566a\u58f0\u9884\u7b97\u8981\u6c42\uff0c\u5f71\u54cd\u7535\u8def\u6027\u80fd\u3002<\/p>\n<h3>3. \u4fe1\u53f7\u4e0a\u5347\u65f6\u95f4\u5982\u4f55\u5f71\u54cd\u4fe1\u53f7\u53cd\u5c04\uff1f<\/h3>\n<p>\u4fe1\u53f7\u4e0a\u5347\u65f6\u95f4\u8f83\u77ed\u65f6\uff0c\u963b\u6297\u53d8\u5316\u5904\u7684\u65f6\u5ef6\u9700\u8981\u66f4\u5c0f\u624d\u80fd\u907f\u514d\u4fe1\u53f7\u53cd\u5c04\u3002\u957f\u4fe1\u53f7\u4e0a\u5347\u65f6\u95f4\u53ef\u4ee5\u5bb9\u5fcd\u8f83\u5927\u7684\u65f6\u5ef6\u3002<\/p>\n<h3>4. \u4e3a\u4ec0\u4e48\u8981\u51cf\u5c0f\u7ebf\u5bbd\u53d8\u5316\u7684\u9888\u72b6\u90e8\u5206\u957f\u5ea6\uff1f<\/h3>\n<p>\u51cf\u5c0f\u7ebf\u5bbd\u53d8\u5316\u7684\u9888\u72b6\u90e8\u5206\u957f\u5ea6\u53ef\u4ee5\u964d\u4f4e\u53cd\u5c04\u7684\u5f71\u54cd\uff0c\u4f7f\u4fe1\u53f7\u66f4\u7a33\u5b9a\u3002<\/p>\n<h3>5. PCB\u8bbe\u8ba1\u4e2d\u7684\u53c2\u6570\u662f\u5426\u9700\u8981\u7cbe\u786e\u5339\u914d\u7406\u8bba\u503c\uff1f<\/h3>\n<p>PCB\u8bbe\u8ba1\u4e2d\u7684\u53c2\u6570\u4e0d\u53ef\u80fd\u7cbe\u786e\u5339\u914d\u7406\u8bba\u503c\uff0c\u9700\u8981\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8fdb\u884c\u9002\u5f53\u7684\u4fee\u8ba2\u548c\u8c03\u6574\u3002<\/p>\n<h3>6. \u4e3a\u4ec0\u4e48\u5b9e\u6d4b\u963b\u6297\u5e38\u5e38\u6bd4\u8ba1\u7b97\u503c\u4f4e\uff1f<\/h3>\n<p>\u5e38\u89c1\u539f\u56e0\u662f\u963b\u710a\u5c42\u3002\u963b\u710a\u7684\u4ecb\u7535\u5e38\u6570\u9ad8\u4e8e\u7a7a\u6c14\uff0c\u8986\u76d6\u5728\u5916\u5c42\u8d70\u7ebf\u4e0a\u4f1a\u589e\u5927\u6709\u6548\u4ecb\u7535\u5e38\u6570\uff0c\u4ece\u800c\u964d\u4f4e\u963b\u6297\uff0c\u901a\u5e38\u5f71\u54cd\u51e0\u4e2a\u767e\u5206\u70b9\u3002\u82e5\u8ba1\u7b97\u65f6\u672a\u7eb3\u5165\u8fd9\u4e00\u56e0\u7d20\uff0c\u5b9e\u6d4b\u5c31\u4f1a\u7cfb\u7edf\u6027\u504f\u4f4e\u3002\u89e3\u51b3\u529e\u6cd5\u662f\u5728\u8ba1\u7b97\u4e2d\u8003\u8651\u963b\u710a\uff0c\u6216\u5bf9\u5173\u952e\u533a\u57df\u505a\u5f00\u7a97\u5904\u7406\u3002<\/p>\n<h3>7. \u5dee\u5206\u963b\u6297\u548c\u5355\u7aef\u963b\u6297\u8981\u6c42\u80fd\u540c\u65f6\u6ee1\u8db3\u5417\uff1f<\/h3>\n<p>\u53ef\u4ee5\uff0c\u4f46\u7ebf\u5bbd\u4e0e\u95f4\u8ddd\u8981\u8054\u7acb\u6c42\u89e3\u3002\u5dee\u5206\u963b\u6297\u7531\u7ebf\u5bbd\u3001\u7ebf\u8ddd\u4e0e\u4ecb\u8d28\u539a\u5ea6\u5171\u540c\u51b3\u5b9a\uff0c\u800c\u5355\u7aef\u963b\u6297\u4e3b\u8981\u7531\u7ebf\u5bbd\u4e0e\u4ecb\u8d28\u539a\u5ea6\u51b3\u5b9a\u3002\u8bbe\u8ba1\u65f6\u5e94\u5148\u786e\u5b9a\u53e0\u6784\uff0c\u518d\u540c\u65f6\u6c42\u89e3\u51fa\u6ee1\u8db3\u4e24\u8005\u7684\u7ebf\u5bbd\u4e0e\u7ebf\u8ddd\u7ec4\u5408\uff0c\u5fc5\u8981\u65f6\u8c03\u6574\u4ecb\u8d28\u539a\u5ea6\u3002<\/p>\n<h3>8. \u963b\u6297\u6d4b\u8bd5\u6761\u653e\u5728\u54ea\u91cc\u5408\u9002\uff1f<\/h3>\n<p>\u901a\u5e38\u653e\u5728\u677f\u7684\u5de5\u827a\u8fb9\u4e0a\uff0c\u4e0e\u677f\u540c\u6279\u5236\u4f5c\uff0c\u8d70\u7ebf\u7ed3\u6784\u8981\u4e0e\u88ab\u6d4b\u7684\u5173\u952e\u94fe\u8def\u4e00\u81f4\u3002\u653e\u5de5\u827a\u8fb9\u4fbf\u4e8e\u6d4b\u8bd5\u4e14\u4e0d\u5360\u7528\u677f\u5185\u7a7a\u95f4\uff1b\u82e5\u677f\u5185\u7a7a\u95f4\u5141\u8bb8\uff0c\u4e5f\u53ef\u4ee5\u5728\u677f\u5185\u9760\u8fd1\u5173\u952e\u94fe\u8def\u7684\u4f4d\u7f6e\u653e\u7f6e\uff0c\u4ee3\u8868\u6027\u66f4\u597d\u3002<\/p>\n<h3>9. \u540c\u4e00\u5757\u677f\u4e0a\u4e0d\u540c\u5c42\u7684\u963b\u6297\u7ebf\u5bbd\u4e00\u6837\u5417\uff1f<\/h3>\n<p>\u901a\u5e38\u4e0d\u4e00\u6837\u3002\u8868\u5c42\u5fae\u5e26\u7ebf\u4e0e\u5185\u5c42\u5e26\u72b6\u7ebf\u7684\u7ed3\u6784\u4e0d\u540c\uff0c\u5373\u4f7f\u76ee\u6807\u963b\u6297\u76f8\u540c\uff0c\u6240\u9700\u7ebf\u5bbd\u4e5f\u4e0d\u540c\uff1b\u6b64\u5916\u4e0d\u540c\u5c42\u7684\u4ecb\u8d28\u539a\u5ea6\u5dee\u5f02\u4e5f\u4f1a\u6539\u53d8\u7ebf\u5bbd\u3002\u56e0\u6b64\u53e0\u6784\u8868\u4e0a\u6bcf\u4e00\u5c42\u7684\u963b\u6297\u7ebf\u5bbd\u90fd\u5e94\u5355\u72ec\u5217\u51fa\u3002<\/p>\n<h3>10. \u963b\u6297\u4e0d\u8fbe\u6807\u80fd\u4e0d\u80fd\u901a\u8fc7\u8c03\u7ebf\u5bbd\u8865\u6551\uff1f<\/h3>\n<p>\u5df2\u7ecf\u505a\u51fa\u6765\u7684\u677f\u65e0\u6cd5\u8865\u6551\uff0c\u53ea\u80fd\u5728\u4e0b\u4e00\u6279\u8c03\u6574\u3002\u8865\u6551\u7684\u65b9\u5411\u6709\u4e24\u4e2a\uff1a\u8c03\u7ebf\u5bbd\uff08\u6539\u5149\u7ed8\u6570\u636e\uff09\u6216\u8c03\u4ecb\u8d28\u539a\u5ea6\uff08\u6539\u53e0\u6784\uff09\u3002\u524d\u8005\u6210\u672c\u4f4e\u3001\u89c1\u6548\u5feb\uff0c\u662f\u9996\u9009\uff1b\u540e\u8005\u5f71\u54cd\u677f\u539a\u4e0e\u5176\u5b83\u5c42\uff0c\u901a\u5e38\u53ea\u5728\u53e0\u6784\u672c\u8eab\u4e0d\u5408\u7406\u65f6\u624d\u91c7\u7528\u3002<\/p>\n<h3>11. \u4e0a\u5347\u65f6\u95f4\u8d8a\u77ed\uff0c\u5bf9\u963b\u6297\u63a7\u5236\u7684\u8981\u6c42\u8d8a\u9ad8\u5417\uff1f<\/h3>\n<p>\u662f\u7684\u3002\u4e0a\u5347\u65f6\u95f4\u8d8a\u77ed\uff0c\u4fe1\u53f7\u5305\u542b\u7684\u9ad8\u9891\u6210\u5206\u8d8a\u4e30\u5bcc\uff0c\u5bf9\u963b\u6297\u7a81\u53d8\u7684\u654f\u611f\u5ea6\u8d8a\u9ad8\uff0c\u540c\u65f6\u5141\u8bb8\u7684\u65e0\u5bb3\u7a81\u53d8\u957f\u5ea6\u4e5f\u8d8a\u77ed\u3002\u56e0\u6b64\u9ad8\u901f\u5668\u4ef6\u6362\u4ee3\u540e\uff0c\u5373\u4f7f\u9891\u7387\u4e0d\u53d8\uff0c\u8fb9\u6cbf\u53d8\u9661\u4e5f\u4f1a\u8ba9\u539f\u6709\u7684\u963b\u6297\u8bbe\u8ba1\u53d8\u5f97\u4e0d\u591f\u4e25\u8c28\u3002<\/p>\n<p><strong>Related Reading<\/strong>\uff1a<a href=\"\/en\/blog\/common-errors-in-printed-circuit-board-design\/\">How to Avoid Common Mistakes in Printed Circuit Board Design<\/a> \u00b7 <a href=\"\/en\/blog\/impedance-matching-and-0-ohm-resistance\/\">Impedance Matching and 0-Ohm Resistors in PCB Design<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>\u5728PCB\uff08Printed Circuit Board\uff0c\u5370\u5237\u7535\u8def\u677f\uff09\u8bbe\u8ba1\u4e2d\uff0c\u963b\u6297\u5339\u914d\u662f\u4e00\u4e2a\u81f3\u5173\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u5c24\u5176\u662f [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8607,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"slim_seo":{"title":"PCB\u963b\u6297\u8bef\u5dee\u4e3a\u4ec0\u4e48\u662f\u00b110%\uff1f\u963b\u6297\u53d8\u5316\u4e0e\u4fe1\u53f7\u53cd\u5c04\u7684\u5173\u7cfb","description":"\u963b\u6297\u8bef\u5dee\u4e3a\u4ec0\u4e48\u662f\u00b110%\uff1f\u8bb2\u6e05\u4e00\u6b21\u4e0e\u4e8c\u6b21\u963b\u6297\u53d8\u5316\u3001\u53d8\u5316\u6b21\u6570\u4e0e\u4fe1\u53f7\u53cd\u5c04\u7684\u5173\u7cfb\uff0c\u4ee5\u53ca\u4e0a\u5347\u65f6\u95f4\u5e26\u6765\u7684\u5f71\u54cd\u3002\u6587\u4e2d\u7ed9\u51fa\u53ef\u76f4\u63a5\u5957\u7528\u7684\u53d6\u503c\u4e0e\u64cd\u4f5c\u8981\u70b9\u3002"},"_slim_seo_primary_term_category":0,"_slim_seo_primary_term_post_tag":0,"footnotes":""},"categories":[405,26],"tags":[],"class_list":["post-1885","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-pcb-design","category-blog"],"_links":{"self":[{"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/posts\/1885","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/comments?post=1885"}],"version-history":[{"count":5,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/posts\/1885\/revisions"}],"predecessor-version":[{"id":19982,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/posts\/1885\/revisions\/19982"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/media\/8607"}],"wp:attachment":[{"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/media?parent=1885"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/categories?post=1885"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jingpengpcb.com\/en\/wp-json\/wp\/v2\/tags?post=1885"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}