JPS60116749A - Substrate for polishing gallium-arsenic wafer - Google Patents

Substrate for polishing gallium-arsenic wafer

Info

Publication number
JPS60116749A
JPS60116749A JP58227562A JP22756283A JPS60116749A JP S60116749 A JPS60116749 A JP S60116749A JP 58227562 A JP58227562 A JP 58227562A JP 22756283 A JP22756283 A JP 22756283A JP S60116749 A JPS60116749 A JP S60116749A
Authority
JP
Japan
Prior art keywords
substrate
wafer
polishing
thermal expansion
polysong
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
JP58227562A
Other languages
Japanese (ja)
Inventor
Fumiaki Higuchi
文章 樋口
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP58227562A priority Critical patent/JPS60116749A/en
Publication of JPS60116749A publication Critical patent/JPS60116749A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To obtain a substrate for polishing a Ga-As wafer by using an Fe alloy contg. a specified amount of Ni having the same coefft. of thermal expansion as Ga-As so as to prevent deterioration in the flatness of the wafer after polishing. CONSTITUTION:A substrate for polishing a Ga-As wafer is made of an Fe alloy contg. 42-50wt% Ni having the same coefft. of thermal expansion as Ga-As. The coefft. is 8X10<-6>/ deg.C. A Ga-As wafer is adhered to the substrate with wax or the like, and mirror polishing is carried out.

Description

【発明の詳細な説明】 (技術分野) 本発明は、ガリウム・ヒ素ウェハのボリシング後の平J
fl&の悪化を防止するためのボ□リジング用基板に関
するものである。
DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a flat J after boring of a gallium arsenide wafer.
This invention relates to a board for boring to prevent deterioration of fl&.

(従来技術とその問題点) 第1図に示すようにガリウム・ヒ素ウェハ3はボクシン
グ時に、接着剤ワックス2により、ボリシング用基板1
に接着される。従来は、ボリシング用基板1はガラス、
ステンレス、セラミックス等の相和で製作されていた。
(Prior art and its problems) As shown in FIG.
is glued to. Conventionally, the borizing substrate 1 is made of glass,
It was made of Aiwa materials such as stainless steel and ceramics.

前記ウェハ3をボリシング用基板1にワックス2等の接
着剤で加熱接着する際に、ウェハと接着用基板との熱膨
張率の違いにより歪が発生する。然る後ボリシングし、
ウェハを所望の幾伺学的精良に仕上げても、ボリシング
終了後ボリシング基板より取外す際、応力が解放される
ことにより、ウェハにソリか発生ずる。このため、ウェ
ハに■Cパターンを形成する際に不良の要因となる。
When the wafer 3 is thermally bonded to the borizing substrate 1 with an adhesive such as wax 2, distortion occurs due to the difference in thermal expansion coefficient between the wafer and the bonding substrate. After that, borishing,
Even if the wafer is finished to the desired geometrical precision, warpage occurs in the wafer due to the stress being released when the wafer is removed from the boring substrate after the completion of the boring. For this reason, it becomes a cause of defects when forming the ■C pattern on a wafer.

最近、ガリウム・ヒ素ウェハの大口径化およびパターン
の微細化に伴い、ガリウム・ヒ素ウェハのボリシング後
の平坦度の悪化いわゆるソリが問題となっている。
Recently, with the increase in diameter of gallium arsenide wafers and the miniaturization of patterns, deterioration in the flatness of gallium arsenide wafers after boring, so-called warpage, has become a problem.

(発明の構成) 本発明は、上記の問題点に鑑みなされたものでボリシン
グ後のガリウム・ヒ素ウェハのソリをl(/j止するポ
リシング用基板を提供するものである。
(Structure of the Invention) The present invention has been made in view of the above-mentioned problems, and provides a polishing substrate that prevents warping of a gallium arsenide wafer after polishing.

すなわち、本発明はガリウム・ヒ素ウェハと同−の膨1
11+係数(8X 10″10C)を有する材質のポリ
ソング用基板で、このポリソング用基板のlAtはlI
2〜SO%N1含看lj’c合金を用いる−1のである
That is, the present invention has the same expansion as a gallium arsenide wafer.
This polysong substrate is made of material with a coefficient of 11+ (8X 10″10C), and lAt of this polysong substrate is lI
-1 using a lj'c alloy containing 2~SO%N1.

この合金はN1の含に4’ (tJによりその膨張係数
が変化するため、ガリウム・ヒ素と同じ熱膨張係数を得
るためには#、2−30%N1を含有したものを用いる
のかよい。
Since the expansion coefficient of this alloy changes depending on the N1 content (tJ), in order to obtain the same thermal expansion coefficient as gallium arsenide, it is best to use an alloy containing 2-30% N1.

(実施例) まず比較例(従来例)について説明する。 −曲径75
 m−1のカリウム・ヒ素つエノ1を両1m同時ラッピ
ング後、第1図に示す如くガラスをボリシング基板1と
して用い、接着用ワックス2により接着した後、ミラー
ボリンングを行った。接着状態でのt枚のウェハ3の平
坦度が2!’m以下工あったか、ワックス2奈加熱溶融
後、ウエノ・を取外すと1′・現反(ソリ)は8〜/Q
、ltmへ大きく悪化した。
(Example) First, a comparative example (conventional example) will be described. -Curve diameter 75
After simultaneously lapping both 1 m of potassium arsenic eno-1 (m-1), as shown in FIG. 1, glass was used as the bolling substrate 1 and bonded with adhesive wax 2, followed by mirror bolling. The flatness of t wafers 3 in the bonded state is 2! It was less than 'm.After heating and melting the wax, when I removed the wax, it was 1'.The current warp was 8~/Q
, it greatly deteriorated to ltm.

上記の比較例におけるポリソング用基板1を、第2図の
ように本発明の11−2〜50%N’i’f1’Fe合
金を用いたポリソング用基板11とし、同様のボリシン
グ条件にてミラーボリシングを実施し、しかる後上記基
板11よりウェハを取外した場合は、平坦度が接着状態
で、ニア 、u m以下であったものは、(′:Aとん
ど変化せず最大のものでも31μmとなったのみ−Cあ
る。
The polysong substrate 1 in the above comparative example was replaced with a polysong substrate 11 using the 11-2 to 50% N'i'f1'Fe alloy of the present invention as shown in FIG. When the wafer is removed from the substrate 11 after performing boringing, the flatness of the wafer in the bonded state is less than or equal to near, um. However, it only became 31 μm -C.

上述のように本発明のポリソング用基板は優れたもので
あることか判る。
As mentioned above, it can be seen that the polysong substrate of the present invention is excellent.

さらに≠2〜SO%N1含M’Fe合金について説明を
補足する。
Furthermore, a supplementary explanation will be given regarding the M'Fe alloy containing ≠2~SO%N1.

GaAsウェハは、そのドーパントの種類および濃度に
よって熱膨張係数が変化する。従って、GaAsウェハ
と同一の熱膨張係数とするため、ヴ2〜30%Ni含有
量から適したN1含有量のFe合金を用いれはよい。
A GaAs wafer has a thermal expansion coefficient that changes depending on the type and concentration of the dopant. Therefore, in order to have the same coefficient of thermal expansion as the GaAs wafer, it is preferable to use an Fe alloy with a suitable N1 content from V2 to 30% Ni content.

今、gxlOloCの熱膨張係数を有するGaAsウェ
ハでは、同一の熱j膨張係数わ有するIl夕%Ni含有
i(’C合金をポリソング用基板として用いればよい。
Now, for a GaAs wafer having a thermal expansion coefficient of gxlOloC, an Il%Ni-containing I('C) alloy having the same thermal expansion coefficient may be used as a polysong substrate.

以下、11.j%Ni含有FC合金で例示する。Below, 11. An example of this is an FC alloy containing j%Ni.

GaAsウェハの熱1jφ脹係数より、ポリソング用基
板の熱膨張係数か小さい場合、すなわち、’A3%より
も小さな値、特に’/−2%以下ではポリソング用基板
からの取外しの際に、極端に凸側へ変形する。
If the thermal expansion coefficient of the polysong substrate is smaller than the thermal expansion coefficient of the GaAs wafer (1jφ), that is, if the value is smaller than 'A3%, especially less than '/-2%, it will be extremely difficult to remove it from the polysong substrate. Deforms to the convex side.

また、6a、Asウェハの熱膨張係数よりボリシング用
J1(板の熱1jω脹係数かII596よりも大きな値
、特に50%以上では基板からのGaAsウェハ取外し
の際にイ1υi端に四側へ変形する。
6a, the thermal expansion coefficient of the As wafer is larger than J1 (thermal 1jω expansion coefficient of the plate or II596), especially when it is 50% or more, the GaAs wafer is deformed to the four sides at the 1υi end when removed from the substrate. do.

従って、l X 10 / 00 l7)GaAsウェ
ハのボリシングILIノ1(板の拐質としては1「IJ
−のtis%N1含有Fe合金が最適であるか、lI2
〜SO%でも効果がある。
Therefore, l x 10 / 00 l7) Boring of GaAs wafer ILI No. 1
-is%N1-containing Fe alloy is optimal or lI2
~SO% is also effective.

(発明の効果) 本発明のポリソング用基板は、 ■ カリウム・ヒ素と同一の熱膨張係数をもつポリソン
グ用基板を用いるため、ウェハを上記基板にワックスに
より接着する場合、ウェハに歪か発生せずに接着できる
ので、ガリウム・ヒ素ウェハのボクシング後、ポリソン
グ用基板から取外す場合にもウェハにソリか発生しない
(Effects of the Invention) The polysong substrate of the present invention uses a polysong substrate that has the same coefficient of thermal expansion as potassium arsenic, so when a wafer is bonded to the above substrate with wax, no distortion occurs in the wafer. Since the gallium arsenide wafer can be bonded to the wafer after boxing, warping will not occur on the wafer when it is removed from the polysong substrate.

(2) ウェハにソリかなく平坦度が良いため、ボクシ
ング後のウェハプロセスにおいて、微細加工におりる加
工精良か向上する。
(2) Since the wafer does not warp and has good flatness, it improves the precision of microfabrication in the wafer process after boxing.

青の効果を治している。゛ なお、本発明のポリソング用基板について晶;明を補足
する。
It cures the blue effect.゛Additional details regarding the polysong substrate of the present invention will be added.

(11ラッピングは両面同時ラッピングでも、片面ラッ
ピングでも、あるいは砥石による研削で行っても、よい
(11 Lapping may be performed by simultaneous lapping on both sides, lapping on one side, or grinding with a whetstone.

(21片面ラッピング、あるいは(u!削からボリンン
グまで、同じ基板に接着したま\で加工する場合でもよ
い。
(21 Single-sided lapping, or (u!) Processing from cutting to boring may be performed while bonded to the same substrate.

(31ウェハの片面に電極を形成した後に、残りの面を
ボリシングする場合の基板としてもよい。
(It may also be used as a substrate for forming electrodes on one side of a 31 wafer and then bollising the remaining side.

【図面の簡単な説明】[Brief explanation of drawings]

第1Nは従来の、第2図は本発明の実施例のそ1・・・
ポリソング用基板(カラス)、2・・・ワックス接着剤
、3・・・ガリウム・ヒ素ウェハ、11・・・本発明の
ポリソング用基板。
1N is the conventional one, and FIG. 2 is the first embodiment of the present invention...
Polysong substrate (crow), 2... Wax adhesive, 3... Gallium arsenide wafer, 11... Polysong substrate of the present invention.

Claims (1)

【特許請求の範囲】 / ガリウム・ヒ素と同じ熱膨張係数を損する41、.
2〜50%N1含有Fe合金よりなることを特徴とする
ガリウム・ヒ素ウェハのボリシングJfi板。 !、 ガラ1クム・ヒ素ウェハをワックス等によってボ
リシング用基板に接着されることを特徴とする特許請求
の範囲第1項記載のガリウム・ヒ素ウェハのボリシング
用基板。
[Claims] / 41, ., which loses the same coefficient of thermal expansion as gallium arsenide.
A Boring Jfi plate of gallium arsenide wafer, characterized in that it is made of an Fe alloy containing 2 to 50% N1. ! 2. A substrate for bollination of a gallium arsenide wafer according to claim 1, wherein the gallium arsenide wafer is bonded to the substrate for borising with wax or the like.
JP58227562A 1983-11-30 1983-11-30 Substrate for polishing gallium-arsenic wafer Pending JPS60116749A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58227562A JPS60116749A (en) 1983-11-30 1983-11-30 Substrate for polishing gallium-arsenic wafer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58227562A JPS60116749A (en) 1983-11-30 1983-11-30 Substrate for polishing gallium-arsenic wafer

Publications (1)

Publication Number Publication Date
JPS60116749A true JPS60116749A (en) 1985-06-24

Family

ID=16862851

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58227562A Pending JPS60116749A (en) 1983-11-30 1983-11-30 Substrate for polishing gallium-arsenic wafer

Country Status (1)

Country Link
JP (1) JPS60116749A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63123645A (en) * 1986-11-12 1988-05-27 Nec Corp Manufacture of semi-conductor device
WO2003077311A1 (en) * 2002-03-14 2003-09-18 Commonwealth Scientific And Industrial Research Organisation Method and resulting structure for manufacturing semiconductor substrate
US6960490B2 (en) 2002-03-14 2005-11-01 Epitactix Pty Ltd. Method and resulting structure for manufacturing semiconductor substrates
JP2012519381A (en) * 2009-02-27 2012-08-23 アルタ デバイセズ,インコーポレイテッド Tile substrates for deposition and epitaxial lift-off processes.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63123645A (en) * 1986-11-12 1988-05-27 Nec Corp Manufacture of semi-conductor device
WO2003077311A1 (en) * 2002-03-14 2003-09-18 Commonwealth Scientific And Industrial Research Organisation Method and resulting structure for manufacturing semiconductor substrate
US6919261B2 (en) 2002-03-14 2005-07-19 Epitactix Pty Ltd Method and resulting structure for manufacturing semiconductor substrates
US6960490B2 (en) 2002-03-14 2005-11-01 Epitactix Pty Ltd. Method and resulting structure for manufacturing semiconductor substrates
JP2012519381A (en) * 2009-02-27 2012-08-23 アルタ デバイセズ,インコーポレイテッド Tile substrates for deposition and epitaxial lift-off processes.

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