JPS5593244A - Lead frame for semiconductor device - Google Patents
Lead frame for semiconductor deviceInfo
- Publication number
- JPS5593244A JPS5593244A JP51079A JP51079A JPS5593244A JP S5593244 A JPS5593244 A JP S5593244A JP 51079 A JP51079 A JP 51079A JP 51079 A JP51079 A JP 51079A JP S5593244 A JPS5593244 A JP S5593244A
- Authority
- JP
- Japan
- Prior art keywords
- degrees
- electrode
- lead frame
- numbered
- integrated circuit
- 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
Landscapes
- Lead Frames For Integrated Circuits (AREA)
Abstract
PURPOSE: To prevent a defective connection formed by means of symmetric axis of rotation generated on an electrode and a lead frame for gang bond of integrated circuit.
CONSTITUTION: It is arranged so that the arranging pitch of connecting terminals of the erectrodes facing each other of plural electrodes arranged in a square form may be equal to each other, and the arrangement shape of the all connecting terminals may have no symmetric axis of rotation. For instance, if there is an integrared circuit whose electrode arrangement is not of 90 degrees and 270 degrees' rotary symmetry, but of 180 degrees' rotary symmetry, and in addition, whose all electrode arrangements are of the identical pitch, it is arranged so that connecting terminal may be estqblished on the lead frame in such manner as to correspond to these electrodes, and may be numbered 200'W204', 205'W208', 209'W213' and 214'W 218' respectively. Suppose the integrated circuit is turned 90 degrees or 270 degrees. Then it is found that there are no pairs corresponding to each electrode and lead terminal numbered 204, 213 and 204', 213. For this reason, an erroneous combination can be identified immediately.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51079A JPS5593244A (en) | 1979-01-04 | 1979-01-04 | Lead frame for semiconductor device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP51079A JPS5593244A (en) | 1979-01-04 | 1979-01-04 | Lead frame for semiconductor device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5593244A true JPS5593244A (en) | 1980-07-15 |
Family
ID=11475765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51079A Pending JPS5593244A (en) | 1979-01-04 | 1979-01-04 | Lead frame for semiconductor device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5593244A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57192059A (en) * | 1981-05-22 | 1982-11-26 | Hitachi Ltd | Semiconductor device |
-
1979
- 1979-01-04 JP JP51079A patent/JPS5593244A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57192059A (en) * | 1981-05-22 | 1982-11-26 | Hitachi Ltd | Semiconductor device |
JPH0116014B2 (en) * | 1981-05-22 | 1989-03-22 | Hitachi Ltd |
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