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国际 PCB 社区 · Design, fab/stackup, assembly/SMT, materials & DFM — PCB design & layout, fab & stackup, assembly & SMT, materials & process, DFM/DFx. Bilingual CN+EN. PCB-focused community (not a general electronics site). Not engineering, purchase, or legal advice. No politics. No fabricated fab quotes.
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Announcements / 站务公告
Forum news, bilingual rules, and official notices
Latest: 【招商】广告位刊例与首单优惠 / Advertise on PCBUni
2026-10-24 09:00 北京时间
2026-10-24 09:00 北京时间
3 threads
3 posts
3 posts
Design & Layout / 设计布线
Layout constraints, routing rules and PDN notes — not engineering advice
Latest: 差分对长度匹配：公差字段怎么写进图纸才好沟通
2026-10-29 09:18 北京时间
2026-10-29 09:18 北京时间
7 threads
10 posts
10 posts
Fab & Stackup / 制板与叠层
Stackup tables, impedance targets and fab communication checklists
Latest: 铜厚与内层残留：沟通时别忘问什么 / Copper weight questions to a…
2026-10-29 09:18 北京时间
2026-10-29 09:18 北京时间
5 threads
8 posts
8 posts
Assembly & SMT / 贴装与 SMT
SMT process notes, stencil/paste fields and open risks
Latest: 回流曲线讨论：先贴观察再猜根因 / Reflow profile discussion hyg…
2026-10-29 09:17 北京时间
2026-10-29 09:17 北京时间
5 threads
8 posts
8 posts
Materials & Process / 材料与工艺
Laminate, solder mask, surface finish and process windows
Latest: 无卤与CAF：读规格书时看哪些栏 / Halogen-free & CAF reading t…
2026-10-26 01:07 北京时间
2026-10-26 01:07 北京时间
5 threads
5 posts
5 posts
DFM / DFx 与可制造性
DFM/DFT checklists and design-for-manufacturing fields
Latest: 拼板与工艺边：发帖模板 / Panelization & rails template
2026-10-26 04:07 北京时间
2026-10-26 04:07 北京时间
5 threads
5 posts
5 posts
Chinese / 中文交流
Chinese-first talk — still PCB-focused (not general electronics)
Latest: 和板厂开会：会议纪要字段建议 / Fab meeting notes fields (CN)
2026-10-26 07:07 北京时间
2026-10-26 07:07 北京时间
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