JPS5225581A - Production method of semiconductor device - Google Patents

Production method of semiconductor device

Info

Publication number
JPS5225581A
JPS5225581A JP10163675A JP10163675A JPS5225581A JP S5225581 A JPS5225581 A JP S5225581A JP 10163675 A JP10163675 A JP 10163675A JP 10163675 A JP10163675 A JP 10163675A JP S5225581 A JPS5225581 A JP S5225581A
Authority
JP
Japan
Prior art keywords
semiconductor device
production method
region
formations
high frequency
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
JP10163675A
Other languages
Japanese (ja)
Inventor
Reiji Takashina
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 JP10163675A priority Critical patent/JPS5225581A/en
Publication of JPS5225581A publication Critical patent/JPS5225581A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrodes Of Semiconductors (AREA)
  • Bipolar Transistors (AREA)

Abstract

PURPOSE: To stably produce a high frequency transistor of which characteristics dispersion is small, by means of simultaneously performing the formations of the emitter region as well as the base electrode takeout region.
COPYRIGHT: (C)1977,JPO&Japio
JP10163675A 1975-08-21 1975-08-21 Production method of semiconductor device Pending JPS5225581A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10163675A JPS5225581A (en) 1975-08-21 1975-08-21 Production method of semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10163675A JPS5225581A (en) 1975-08-21 1975-08-21 Production method of semiconductor device

Publications (1)

Publication Number Publication Date
JPS5225581A true JPS5225581A (en) 1977-02-25

Family

ID=14305872

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10163675A Pending JPS5225581A (en) 1975-08-21 1975-08-21 Production method of semiconductor device

Country Status (1)

Country Link
JP (1) JPS5225581A (en)

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