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IPC-4556 Standard Only

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IPC-4556 - Standard Only

Specification for Electroless Nickel/Electroless Palladium/Immersion Gold (ENEPIG) Plating for Printed Circuit Boards

Document #:
IPC-4556
Revision
Original Version
Product Type
Standard Only
Released:  02/05/2013
Language
English
This specification sets the requirements for the use of electroless nickel/electroless palladium/immersion gold (ENEPIG) as a surface finish for printed boards. It establishes requirements for ENEPIG deposit thicknesses for applications including soldering, wire bonding and as a contact finish. It is intended for use by chemical suppliers, printed board manufacturers, electronics manufacturing...

IPC-4556 - Standard Only

印制板化学镍/钯/浸金（ENEPIG）规范

Document #:
IPC-4556
Revision
Original Version
Product Type
Standard Only
Released:  11/26/2018
Language
Chinese
Current Revision
本规范规定了使用化学镍/钯/浸金（ENEPIG）作为印制板表面处理的要求。本规范规定了ENEPIG应用于焊接、金属线键合和接触面涂覆层的沉积厚度规格。本规范适用于化学药水供应商、印制板制造商、电子制造服务业（EMS）和原始设备制造商（OEM）。ENEPIG是沉积在以铜为基底金属上的一个三层的表面处理。它是一种多功能的表面处理，适用于焊接和金、铝和铜金属线键合。它也适合作为软薄膜和钢凸圆接触的配合表面。其它应用包括使用低插入力（LIF）和零插入力（ZIF）板边连接器和压入式应用。化学钯层形成的扩散阻挡层，阻碍镍扩散到金表面。浸金防止钯层在加工前与污染物反应，否则可能会影响连接制程，如金属线键合和焊接。全文共82页，2013年发布。2018年10月翻译。
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