JPS6457629A - Semiconductor device - Google Patents

Semiconductor device

Info

Publication number
JPS6457629A
JPS6457629A JP21276587A JP21276587A JPS6457629A JP S6457629 A JPS6457629 A JP S6457629A JP 21276587 A JP21276587 A JP 21276587A JP 21276587 A JP21276587 A JP 21276587A JP S6457629 A JPS6457629 A JP S6457629A
Authority
JP
Japan
Prior art keywords
pellet
surface electrode
upper post
semiconductor device
crack
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
JP21276587A
Other languages
Japanese (ja)
Inventor
Akio Yasukawa
Shuroku Sakurada
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP21276587A priority Critical patent/JPS6457629A/en
Publication of JPS6457629A publication Critical patent/JPS6457629A/en
Pending legal-status Critical Current

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Landscapes

  • Die Bonding (AREA)
  • Thyristors (AREA)

Abstract

PURPOSE:To obtain a semiconductor device wherein surface electrode shearing deformation and pellet crack are hard to generate, by dividing an upper post for pressing a surface electrode in its plane. CONSTITUTION:In a semiconductor device having a semiconductor pellet 1, a surface electrode 9 formed thereon, and an upper post pressing the surface electrode 9, the upper post is divided in its plane. For example, the upper post is divided into small blocks 4', and the center of each block 4' is positioned at a fixing plate 10 on the upper post, by a pin 11. For material of the fixing plate 11, one whose coefficient of linear expansion is as small as the pellet 1, e.g., Mo and W are used. Thereby decreasing remarkably the shearing deformation of the pellet surface electrode, and making the crack of pellet hard to generate.
JP21276587A 1987-08-28 1987-08-28 Semiconductor device Pending JPS6457629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21276587A JPS6457629A (en) 1987-08-28 1987-08-28 Semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21276587A JPS6457629A (en) 1987-08-28 1987-08-28 Semiconductor device

Publications (1)

Publication Number Publication Date
JPS6457629A true JPS6457629A (en) 1989-03-03

Family

ID=16628027

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21276587A Pending JPS6457629A (en) 1987-08-28 1987-08-28 Semiconductor device

Country Status (1)

Country Link
JP (1) JPS6457629A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05261332A (en) * 1992-01-21 1993-10-12 E I Du Pont De Nemours & Co Lip surface geometry for slide bead coating
US5759274A (en) * 1994-04-29 1998-06-02 Minnesota Mining And Manufacturing Company Die coating apparatus with surface covering
GB2356631A (en) * 1998-08-07 2001-05-30 Australia Res Lab Epoxy based liquid toner formulations
US6482472B2 (en) 1998-10-13 2002-11-19 Fuji Photo Film Co., Ltd. Method for producing a photopolymerizing lithographic plate including coating and conveying a web using rubber rollers before and after the coating step

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05261332A (en) * 1992-01-21 1993-10-12 E I Du Pont De Nemours & Co Lip surface geometry for slide bead coating
US5380365A (en) * 1992-01-21 1995-01-10 E. I. Du Pont De Nemours And Company Lip surface geometry for slide bead coating
US5759274A (en) * 1994-04-29 1998-06-02 Minnesota Mining And Manufacturing Company Die coating apparatus with surface covering
GB2356631A (en) * 1998-08-07 2001-05-30 Australia Res Lab Epoxy based liquid toner formulations
GB2356631B (en) * 1998-08-07 2002-06-26 Australia Res Lab Epoxy based liquid toner formulations
US6482472B2 (en) 1998-10-13 2002-11-19 Fuji Photo Film Co., Ltd. Method for producing a photopolymerizing lithographic plate including coating and conveying a web using rubber rollers before and after the coating step

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