JPS645438U - - Google Patents

Info

Publication number
JPS645438U
JPS645438U JP9826187U JP9826187U JPS645438U JP S645438 U JPS645438 U JP S645438U JP 9826187 U JP9826187 U JP 9826187U JP 9826187 U JP9826187 U JP 9826187U JP S645438 U JPS645438 U JP S645438U
Authority
JP
Japan
Prior art keywords
opening
semiconductor substrate
insulating layer
growth
semiconductor
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
JP9826187U
Other languages
English (en)
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 filed Critical
Priority to JP9826187U priority Critical patent/JPS645438U/ja
Publication of JPS645438U publication Critical patent/JPS645438U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Drying Of Semiconductors (AREA)

Description

【図面の簡単な説明】
第1図は本考案の一実施例を示す概略断面図で
ある。第2図は自然酸化膜の形成状態を示す概略
断面図、第3図は従来の気相成長用半導体基板に
おける浸食部の形成状態を示す概略断面図である
。 1……シリコン基板、2……酸化シリコン層、
3……第1の開口部、4……第2の開口部、5…
…開口部、6……段部。

Claims (1)

  1. 【実用新案登録請求の範囲】 半導体基板上に開口部を設けた絶縁層を有し、
    該開口部を介して上記絶縁層上に半導体層を形成
    する気相成長用半導体基板において、 上気開口部の底部面積が該開口部の上端面積よ
    り大とされることを特徴とする気相成長用半導体
    基板。
JP9826187U 1987-06-26 1987-06-26 Pending JPS645438U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9826187U JPS645438U (ja) 1987-06-26 1987-06-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9826187U JPS645438U (ja) 1987-06-26 1987-06-26

Publications (1)

Publication Number Publication Date
JPS645438U true JPS645438U (ja) 1989-01-12

Family

ID=31324367

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9826187U Pending JPS645438U (ja) 1987-06-26 1987-06-26

Country Status (1)

Country Link
JP (1) JPS645438U (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04105790U (ja) * 1991-02-20 1992-09-11 株式会社ケンウツド 低音用スピーカシステムの構造
JPH05236586A (ja) * 1991-05-29 1993-09-10 Hughes Aircraft Co 高質量低共振スピーカーシステム

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04105790U (ja) * 1991-02-20 1992-09-11 株式会社ケンウツド 低音用スピーカシステムの構造
JPH05236586A (ja) * 1991-05-29 1993-09-10 Hughes Aircraft Co 高質量低共振スピーカーシステム

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