JPS6448331A - Terminal member - Google Patents
Terminal memberInfo
- Publication number
- JPS6448331A JPS6448331A JP20546887A JP20546887A JPS6448331A JP S6448331 A JPS6448331 A JP S6448331A JP 20546887 A JP20546887 A JP 20546887A JP 20546887 A JP20546887 A JP 20546887A JP S6448331 A JPS6448331 A JP S6448331A
- Authority
- JP
- Japan
- Prior art keywords
- plated
- layer
- gold
- extremely thin
- nickel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE:To maintain a highly anticorrosive conductive film with an extremely thin gold plating layer by a method wherein nickel is plated as a ground layer for a conductive film; over the ground layer, tin and nickel alloy is plated thinner than the ground layer; gold is plated extremely thin as a finishing layer. CONSTITUTION:Nickel 15 is plated over a base metal 14 as a ground layer; tin and nickel alloy 16 is plated over the ground layer thinner than it as an intermediate layer; in the last step gold 17 is plated extremely thin as a finishing layer to form a conductive film 18. Because of the intermediate layer of tin and nickel alloy 16, even if gold 17 is plated extremely thin for gold saving, corrosive factors which are going to penetrate into the inside through a pin hole of the gold 17 plated layer are shut off, which protects the nickel 15 plated inside layer and improves corrosion resistivity and abrasion resistivity. It is therefore possible to maintain a conductive film of high quality and high contact reliability even if cost cut is made by an extremely thin gold plating.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20546887A JPS6448331A (en) | 1987-08-18 | 1987-08-18 | Terminal member |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20546887A JPS6448331A (en) | 1987-08-18 | 1987-08-18 | Terminal member |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6448331A true JPS6448331A (en) | 1989-02-22 |
Family
ID=16507362
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20546887A Pending JPS6448331A (en) | 1987-08-18 | 1987-08-18 | Terminal member |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6448331A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06200395A (en) * | 1992-12-28 | 1994-07-19 | Hakko Denki Seisakusho:Kk | Contact for gold-plated connector |
JPH0773769A (en) * | 1993-09-03 | 1995-03-17 | Ngk Spark Plug Co Ltd | External connecting terminal for semi-conductor package and manufacture thereof |
-
1987
- 1987-08-18 JP JP20546887A patent/JPS6448331A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06200395A (en) * | 1992-12-28 | 1994-07-19 | Hakko Denki Seisakusho:Kk | Contact for gold-plated connector |
JPH0773769A (en) * | 1993-09-03 | 1995-03-17 | Ngk Spark Plug Co Ltd | External connecting terminal for semi-conductor package and manufacture thereof |
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