JPS55125672A - Manufacture of semiconductor device - Google Patents

Manufacture of semiconductor device

Info

Publication number
JPS55125672A
JPS55125672A JP3229479A JP3229479A JPS55125672A JP S55125672 A JPS55125672 A JP S55125672A JP 3229479 A JP3229479 A JP 3229479A JP 3229479 A JP3229479 A JP 3229479A JP S55125672 A JPS55125672 A JP S55125672A
Authority
JP
Japan
Prior art keywords
region
film
mask
emitter
layer
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
JP3229479A
Other languages
English (en)
Inventor
Shigeo Kuroda
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 JP3229479A priority Critical patent/JPS55125672A/ja
Publication of JPS55125672A publication Critical patent/JPS55125672A/ja
Pending legal-status Critical Current

Links

Landscapes

  • Bipolar Transistors (AREA)
JP3229479A 1979-03-22 1979-03-22 Manufacture of semiconductor device Pending JPS55125672A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3229479A JPS55125672A (en) 1979-03-22 1979-03-22 Manufacture of semiconductor device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3229479A JPS55125672A (en) 1979-03-22 1979-03-22 Manufacture of semiconductor device

Publications (1)

Publication Number Publication Date
JPS55125672A true JPS55125672A (en) 1980-09-27

Family

ID=12354928

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3229479A Pending JPS55125672A (en) 1979-03-22 1979-03-22 Manufacture of semiconductor device

Country Status (1)

Country Link
JP (1) JPS55125672A (ja)

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