JPH0351835U - - Google Patents

Info

Publication number
JPH0351835U
JPH0351835U JP11168289U JP11168289U JPH0351835U JP H0351835 U JPH0351835 U JP H0351835U JP 11168289 U JP11168289 U JP 11168289U JP 11168289 U JP11168289 U JP 11168289U JP H0351835 U JPH0351835 U JP H0351835U
Authority
JP
Japan
Prior art keywords
recess
semiconductor wafer
outer edge
etching
wall
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
JP11168289U
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 JP11168289U priority Critical patent/JPH0351835U/ja
Publication of JPH0351835U publication Critical patent/JPH0351835U/ja
Pending legal-status Critical Current

Links

Landscapes

  • ing And Chemical Polishing (AREA)
  • Weting (AREA)

Description

【図面の簡単な説明】
第1図は本考案の半導体ウエハー用エツチング
治具の1実施例を示すもので、Aは上面図、Bは
縦断面図である。第2図は本考案の半導体ウエハ
ー用エツチング治具を用いてエツチングしたGa
Asウエハーの表面平坦度を表わした図である。
実線aは本考案によるもので、点線bは従来法で
エツチングを行なつたものである。 1……くぼみ、2……エツチング液流入出口、
3……外壁、4……取手。

Claims (1)

    【実用新案登録請求の範囲】
  1. 半導体ウエハーの入るくぼみ1を有し該くぼみ
    1の深さが該半導体ウエハーの厚さよりも2〜5
    mm大であり、かつ、該くぼみ1の外縁部に等間隔
    に離れた3つ以上のエツチング液流入出口2を有
    し、該外縁部の高さよりもやや高い外壁3を有し
    、該外縁部に棒状の取手4を有して構成されるこ
    とに特徴がある半導体ウエハー用エツチング治具
JP11168289U 1989-09-26 1989-09-26 Pending JPH0351835U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11168289U JPH0351835U (ja) 1989-09-26 1989-09-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11168289U JPH0351835U (ja) 1989-09-26 1989-09-26

Publications (1)

Publication Number Publication Date
JPH0351835U true JPH0351835U (ja) 1991-05-20

Family

ID=31660154

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11168289U Pending JPH0351835U (ja) 1989-09-26 1989-09-26

Country Status (1)

Country Link
JP (1) JPH0351835U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014010264A1 (ja) 2012-07-12 2014-01-16 Hasegawa Mitsuo 重量物移動台車

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014010264A1 (ja) 2012-07-12 2014-01-16 Hasegawa Mitsuo 重量物移動台車

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