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JPS5225580A - Transistor - Google Patents
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JPS5225580A - Transistor - Google Patents

Transistor

Info

Publication number
JPS5225580A
JPS5225580A JP50101407A JP10140775A JPS5225580A JP S5225580 A JPS5225580 A JP S5225580A JP 50101407 A JP50101407 A JP 50101407A JP 10140775 A JP10140775 A JP 10140775A JP S5225580 A JPS5225580 A JP S5225580A
Authority
JP
Japan
Prior art keywords
transistor
deterioration
promote
prevent
impurity concentration
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
Application number
JP50101407A
Other languages
Japanese (ja)
Other versions
JPS5523467B2 (en
Inventor
Norimichi Idei
Yoshio Uchida
Masayoshi Achinami
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electronics Corp
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 Matsushita Electronics Corp filed Critical Matsushita Electronics Corp
Priority to JP50101407A priority Critical patent/JPS5225580A/en
Publication of JPS5225580A publication Critical patent/JPS5225580A/en
Publication of JPS5523467B2 publication Critical patent/JPS5523467B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Bipolar Transistors (AREA)

Abstract

PURPOSE: To prevent the deterioration of current amplification factor and promote the noise characteristics, by means of adequately selecting the impurity concentration of the emitter region.
COPYRIGHT: (C)1977,JPO&Japio
JP50101407A 1975-08-20 1975-08-20 Transistor Granted JPS5225580A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50101407A JPS5225580A (en) 1975-08-20 1975-08-20 Transistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50101407A JPS5225580A (en) 1975-08-20 1975-08-20 Transistor

Publications (2)

Publication Number Publication Date
JPS5225580A true JPS5225580A (en) 1977-02-25
JPS5523467B2 JPS5523467B2 (en) 1980-06-23

Family

ID=14299853

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50101407A Granted JPS5225580A (en) 1975-08-20 1975-08-20 Transistor

Country Status (1)

Country Link
JP (1) JPS5225580A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03194934A (en) * 1989-12-22 1991-08-26 Matsushita Electric Ind Co Ltd Bipolar semiconductor device and its manufacture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03194934A (en) * 1989-12-22 1991-08-26 Matsushita Electric Ind Co Ltd Bipolar semiconductor device and its manufacture

Also Published As

Publication number Publication date
JPS5523467B2 (en) 1980-06-23

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