JPS5593244A - Lead frame for semiconductor device - Google Patents

Lead frame for semiconductor device

Info

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
Application number
JP51079A
Other languages
Japanese (ja)
Inventor
Manabu Bonshihara
Hiroshi Yokota
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP51079A priority Critical patent/JPS5593244A/en
Publication of JPS5593244A publication Critical patent/JPS5593244A/en
Pending legal-status Critical Current

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
JP51079A 1979-01-04 1979-01-04 Lead frame for semiconductor device Pending JPS5593244A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57192059A (en) * 1981-05-22 1982-11-26 Hitachi Ltd Semiconductor device

Cited By (2)

* Cited by examiner, † Cited by third party
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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