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PCB工藝 軟板傳輸線(xiàn)路設計中必須注意的事項

2020-05-19 12:01:49 218

整理了一些軟板(FPCB/Flex Cable)制造廠(chǎng)關(guān)于線(xiàn)路設計的要求 (Design Guide)以避免應用上的質(zhì)量問(wèn)題。

 

1.Relationship between Through Hole, Land, Cover Film, and Cover Coat

Not Recommended(不建議)

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通孔的焊墊必須用Cover film覆蓋住,以避免使用時(shí)剝落。

 

Recommended(建議)

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2. Circuit Pattern Guidance

Not Recommended(不建議)

Avoid sudden expansion or reduction in pattern width. No sharp angle.

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Recommended(建議)

避免在線(xiàn)路的寬度上突然的變大或是變小,而起不應該有尖角出現。

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3. Design at Folding Area
Not Recommended(不建議)

If the FPC need to be folded then the folding area shall be covered with cover film to prevent trace breaking.

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Avoid folding at below locations
a. The change of pattern width. b. Folding parallel to the pattern.

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Recommended(建議)

如果軟板有彎折的需要時(shí),建議Cover Film必須覆蓋過(guò)彎折處,以避免線(xiàn)路折斷。

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避免以下的彎折及方法:
a.線(xiàn)路寬度改變的地方。b.并行線(xiàn)路彎折。

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4. Plating Leads
Not Recommended(不建議)

Plating leads and disconnection holes should be designed as illustrated in order to avoid short circuits.

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 Recommended(建議)

相鄰線(xiàn)路應該盡可能用最大角度展開(kāi)以避免短路。

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5. Connector Terminal

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