JPS548471A - Selection method for transistor - Google Patents

Selection method for transistor

Info

Publication number
JPS548471A
JPS548471A JP7321577A JP7321577A JPS548471A JP S548471 A JPS548471 A JP S548471A JP 7321577 A JP7321577 A JP 7321577A JP 7321577 A JP7321577 A JP 7321577A JP S548471 A JPS548471 A JP S548471A
Authority
JP
Japan
Prior art keywords
transistor
selection method
time
runaway
transistors
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
JP7321577A
Other languages
Japanese (ja)
Inventor
Yasuo Ohata
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 JP7321577A priority Critical patent/JPS548471A/en
Publication of JPS548471A publication Critical patent/JPS548471A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Individual Semiconductor Devices (AREA)

Abstract

PURPOSE: To select and remove the transistors which may cause deterioration of the distortion factor at high band at mounting or runaway, by performing measurement through combining either one or two or more of turn off time, trailing time, and thermal resistance.
COPYRIGHT: (C)1979,JPO&Japio
JP7321577A 1977-06-22 1977-06-22 Selection method for transistor Pending JPS548471A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7321577A JPS548471A (en) 1977-06-22 1977-06-22 Selection method for transistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7321577A JPS548471A (en) 1977-06-22 1977-06-22 Selection method for transistor

Publications (1)

Publication Number Publication Date
JPS548471A true JPS548471A (en) 1979-01-22

Family

ID=13511708

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7321577A Pending JPS548471A (en) 1977-06-22 1977-06-22 Selection method for transistor

Country Status (1)

Country Link
JP (1) JPS548471A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62149434A (en) * 1985-12-25 1987-07-03 日本セメント株式会社 Manufacture of double layer type ceramic porous body
JPS6351914A (en) * 1986-08-20 1988-03-05 Toshiba Ceramics Co Ltd Ceramic filter
JPH01262913A (en) * 1988-04-08 1989-10-19 Ceramiques Technique:Soc Treatment of contaminated oil in water type emulsion or microemulsion

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62149434A (en) * 1985-12-25 1987-07-03 日本セメント株式会社 Manufacture of double layer type ceramic porous body
JPS6351914A (en) * 1986-08-20 1988-03-05 Toshiba Ceramics Co Ltd Ceramic filter
JPH01262913A (en) * 1988-04-08 1989-10-19 Ceramiques Technique:Soc Treatment of contaminated oil in water type emulsion or microemulsion

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