JPS5645044A - Forming method for electrode lead - Google Patents
Forming method for electrode leadInfo
- Publication number
- JPS5645044A JPS5645044A JP12116079A JP12116079A JPS5645044A JP S5645044 A JPS5645044 A JP S5645044A JP 12116079 A JP12116079 A JP 12116079A JP 12116079 A JP12116079 A JP 12116079A JP S5645044 A JPS5645044 A JP S5645044A
- Authority
- JP
- Japan
- Prior art keywords
- eutectic
- lead
- projection
- electrode lead
- film
- 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
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L24/81—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a bump connector
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/81—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a bump connector
- H01L2224/818—Bonding techniques
- H01L2224/81801—Soldering or alloying
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01005—Boron [B]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01024—Chromium [Cr]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01029—Copper [Cu]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/0105—Tin [Sn]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01079—Gold [Au]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01082—Lead [Pb]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/013—Alloys
- H01L2924/0132—Binary Alloys
- H01L2924/01322—Eutectic Alloys, i.e. obtained by a liquid transforming into two solid phases
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Wire Bonding (AREA)
Abstract
PURPOSE:To obtain an electrode lead having a higher reliability by preventing the production of a short-circuit and a crack in a semiconductor substrate due to the excess eutectic in a gang connection by means of Au-Sn eutectic. CONSTITUTION:A Cr-Cu film 12 is provided at the terminal position on a semiconductor substrate 11, and an Au projection 13 is formed on the film 12. The end of a Cu lead 15 provided on a polyimide resin film 14 is selectively plated with Sn 16. The length A of the Sn plating 16 is smaller than the length B of the Au projec- tion 13. The lead 15 is aligned with the Au projection 13 so that the Sn plating 16 is within the region of the Au projection 13, and pressed by means of a heated jig. On doing this, an Au-Sn eutectic 17 is formed, however there is no excess eutectic to flow out or down. Thus, a lead connection having a higher reliability is obtained.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12116079A JPS5946416B2 (en) | 1979-09-19 | 1979-09-19 | How to form electrode leads |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12116079A JPS5946416B2 (en) | 1979-09-19 | 1979-09-19 | How to form electrode leads |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5645044A true JPS5645044A (en) | 1981-04-24 |
JPS5946416B2 JPS5946416B2 (en) | 1984-11-12 |
Family
ID=14804325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12116079A Expired JPS5946416B2 (en) | 1979-09-19 | 1979-09-19 | How to form electrode leads |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5946416B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS596570A (en) * | 1982-07-02 | 1984-01-13 | Toshiba Corp | Semiconductor device |
JP2003298167A (en) * | 2002-03-29 | 2003-10-17 | Toshiba Corp | Optical semiconductor device |
JP2018074155A (en) * | 2016-10-25 | 2018-05-10 | ▲し▼創電子股▲ふん▼有限公司 | Chip packaging structure and related inner lead bonding method |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0756771B2 (en) * | 1988-06-27 | 1995-06-14 | 松下電工株式会社 | Remote control relay |
-
1979
- 1979-09-19 JP JP12116079A patent/JPS5946416B2/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS596570A (en) * | 1982-07-02 | 1984-01-13 | Toshiba Corp | Semiconductor device |
JP2003298167A (en) * | 2002-03-29 | 2003-10-17 | Toshiba Corp | Optical semiconductor device |
JP2018074155A (en) * | 2016-10-25 | 2018-05-10 | ▲し▼創電子股▲ふん▼有限公司 | Chip packaging structure and related inner lead bonding method |
Also Published As
Publication number | Publication date |
---|---|
JPS5946416B2 (en) | 1984-11-12 |
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