JPH0286131U - - Google Patents

Info

Publication number
JPH0286131U
JPH0286131U JP16708088U JP16708088U JPH0286131U JP H0286131 U JPH0286131 U JP H0286131U JP 16708088 U JP16708088 U JP 16708088U JP 16708088 U JP16708088 U JP 16708088U JP H0286131 U JPH0286131 U JP H0286131U
Authority
JP
Japan
Prior art keywords
layer
conductivity type
type formed
epitaxial formation
formation 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
JP16708088U
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 JP16708088U priority Critical patent/JPH0286131U/ja
Publication of JPH0286131U publication Critical patent/JPH0286131U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Bipolar Transistors (AREA)

Description

【図面の簡単な説明】
第1図はこの考案の一実施例を示す断面図、第
2図は従来のNPNトランジスタを示す断面図で
ある。 2……エミツタ層、4……ベース層、6……エ
ピタキシヤル層、8……埋込層、16……付加埋
込層。

Claims (1)

  1. 【実用新案登録請求の範囲】 埋込層の上部に形成されている第1導電型のエ
    ピタキシヤル形成層、 エピキタシヤル形成層の上部に形成されている
    第2導電型の層、 第2導電型の層の上部に形成されている第1導
    電型の層、 を備えた半導体装置において、 埋込層と第2導電型の層との間であつて、第1
    導電型層の下部付近に、エピタキシヤル形成層よ
    り濃度の濃い付加埋込層を設けたことを特徴とす
    るもの。
JP16708088U 1988-12-23 1988-12-23 Pending JPH0286131U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16708088U JPH0286131U (ja) 1988-12-23 1988-12-23

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16708088U JPH0286131U (ja) 1988-12-23 1988-12-23

Publications (1)

Publication Number Publication Date
JPH0286131U true JPH0286131U (ja) 1990-07-09

Family

ID=31455053

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16708088U Pending JPH0286131U (ja) 1988-12-23 1988-12-23

Country Status (1)

Country Link
JP (1) JPH0286131U (ja)

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