JPH0450739B2 - - Google Patents

Info

Publication number
JPH0450739B2
JPH0450739B2 JP1229176A JP22917689A JPH0450739B2 JP H0450739 B2 JPH0450739 B2 JP H0450739B2 JP 1229176 A JP1229176 A JP 1229176A JP 22917689 A JP22917689 A JP 22917689A JP H0450739 B2 JPH0450739 B2 JP H0450739B2
Authority
JP
Japan
Prior art keywords
forming
semiconductor
film
region
groove
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.)
Expired
Application number
JP1229176A
Other languages
English (en)
Japanese (ja)
Other versions
JPH02177344A (ja
Inventor
Akihisa Uchida
Daisuke Okada
Toshihiko Takakura
Katsumi Ogiue
Yoichi Tamaoki
Masao Kawamura
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 JP1229176A priority Critical patent/JPH02177344A/ja
Publication of JPH02177344A publication Critical patent/JPH02177344A/ja
Publication of JPH0450739B2 publication Critical patent/JPH0450739B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Local Oxidation Of Silicon (AREA)
  • Bipolar Transistors (AREA)
  • Element Separation (AREA)
  • Bipolar Integrated Circuits (AREA)
JP1229176A 1989-09-06 1989-09-06 半導体集積回路装置の製造方法 Granted JPH02177344A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1229176A JPH02177344A (ja) 1989-09-06 1989-09-06 半導体集積回路装置の製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1229176A JPH02177344A (ja) 1989-09-06 1989-09-06 半導体集積回路装置の製造方法

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP57153910A Division JPS5943545A (ja) 1982-09-06 1982-09-06 半導体集積回路装置

Publications (2)

Publication Number Publication Date
JPH02177344A JPH02177344A (ja) 1990-07-10
JPH0450739B2 true JPH0450739B2 (it) 1992-08-17

Family

ID=16887985

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1229176A Granted JPH02177344A (ja) 1989-09-06 1989-09-06 半導体集積回路装置の製造方法

Country Status (1)

Country Link
JP (1) JPH02177344A (it)

Also Published As

Publication number Publication date
JPH02177344A (ja) 1990-07-10

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