JPS56123394A - Iron base alloy for lead material - Google Patents
Iron base alloy for lead materialInfo
- Publication number
- JPS56123394A JPS56123394A JP2529380A JP2529380A JPS56123394A JP S56123394 A JPS56123394 A JP S56123394A JP 2529380 A JP2529380 A JP 2529380A JP 2529380 A JP2529380 A JP 2529380A JP S56123394 A JPS56123394 A JP S56123394A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- base alloy
- lead material
- iron base
- soldability
- 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.)
- Granted
Links
Abstract
PURPOSE: To improve the soldability, mechanical strength and corrosion resistance of a lead material and lower its coefft. of thermal expansion by using an Fe-Cr-Ni alloy having an outside layer of Sn or Sn alloy as a material for leads of semiconductors.
CONSTITUTION: An Fe-Cr-Ni-base alloy contg. 10W20wt% Cr, 1W15wt% Ni, and <0.5wt% C is used as a sealing metallic material for ceramics or resins for semiconductors, and the surface thereof is plated with 0.02W5μm Ni underlayer, after which an Sn plating layer of 0.05W20μm thickness or a plating layer of an alloy of Sn and Pb, Bi, Cd, Sb, In, Al, Zn, etc. is formed thereon. This yields the material for leads having high strength, corrosion resistance and soldability and a low coefft. of thermal expansion.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55025293A JPS5827357B2 (en) | 1980-03-03 | 1980-03-03 | Coated iron-based alloy for lead material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55025293A JPS5827357B2 (en) | 1980-03-03 | 1980-03-03 | Coated iron-based alloy for lead material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56123394A true JPS56123394A (en) | 1981-09-28 |
JPS5827357B2 JPS5827357B2 (en) | 1983-06-08 |
Family
ID=12161964
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55025293A Expired JPS5827357B2 (en) | 1980-03-03 | 1980-03-03 | Coated iron-based alloy for lead material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5827357B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4529667A (en) * | 1983-04-06 | 1985-07-16 | The Furukawa Electric Company, Ltd. | Silver-coated electric composite materials |
JPH03191555A (en) * | 1989-12-21 | 1991-08-21 | Nkk Corp | Lead frame material covered with al-sn eutectic film |
JPH03191556A (en) * | 1989-12-21 | 1991-08-21 | Nkk Corp | Lead frame material covered with al-pb eutectic film |
WO2010021624A1 (en) * | 2008-08-21 | 2010-02-25 | Agere Systems, Inc. | Mitigation of whiskers in sn-films |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5211865A (en) * | 1975-07-15 | 1977-01-29 | Allegheny Ludlum Ind Inc | Metal strips for lead frame and method of the same |
-
1980
- 1980-03-03 JP JP55025293A patent/JPS5827357B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5211865A (en) * | 1975-07-15 | 1977-01-29 | Allegheny Ludlum Ind Inc | Metal strips for lead frame and method of the same |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4529667A (en) * | 1983-04-06 | 1985-07-16 | The Furukawa Electric Company, Ltd. | Silver-coated electric composite materials |
JPH03191555A (en) * | 1989-12-21 | 1991-08-21 | Nkk Corp | Lead frame material covered with al-sn eutectic film |
JPH03191556A (en) * | 1989-12-21 | 1991-08-21 | Nkk Corp | Lead frame material covered with al-pb eutectic film |
WO2010021624A1 (en) * | 2008-08-21 | 2010-02-25 | Agere Systems, Inc. | Mitigation of whiskers in sn-films |
US8653375B2 (en) | 2008-08-21 | 2014-02-18 | Agere Systems, Inc. | Mitigation of whiskers in Sn-films |
Also Published As
Publication number | Publication date |
---|---|
JPS5827357B2 (en) | 1983-06-08 |
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