JPH09193010A - Semiconductor manufacturing device - Google Patents

Semiconductor manufacturing device

Info

Publication number
JPH09193010A
JPH09193010A JP376896A JP376896A JPH09193010A JP H09193010 A JPH09193010 A JP H09193010A JP 376896 A JP376896 A JP 376896A JP 376896 A JP376896 A JP 376896A JP H09193010 A JPH09193010 A JP H09193010A
Authority
JP
Japan
Prior art keywords
jig
template
polished
semiconductor substrate
height
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
JP376896A
Other languages
Japanese (ja)
Inventor
Hiroshi Kawamoto
浩 川本
Ichiro Katakabe
一郎 片伯部
Naoto Miyashita
直人 宮下
Takanobu Nishimura
隆宣 西村
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP376896A priority Critical patent/JPH09193010A/en
Publication of JPH09193010A publication Critical patent/JPH09193010A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B37/00Lapping machines or devices; Accessories
    • B24B37/27Work carriers
    • B24B37/30Work carriers for single side lapping of plane surfaces
    • B24B37/32Retaining rings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

PROBLEM TO BE SOLVED: To reduce step difference between a template and a semiconductor substrate by controlling a jig so that the surface of the jig opposite to an abrasive cloth and the surface of a material to be polished are flush with each other. SOLUTION: Height adjusting mechanisms 5 are provided on the opposite side to templates 2 through a suction board 1. The suction board 1 is provided with four through holes 9, and the template 2 and the height adjusting mechanism 5 are connected together through a shaft 6 inserted through the through hole 6. The height adjusting mechanism 5 adds air pressure or the like to the shaft 6 fixed to the template 2, measures pressure added to the surface of the template 2, and controls pressurization for the shaft 6 according to the measured value of the pressure. As for the template 2, a substance in which SiO is vapor- deposited on a sintered object made of SiC and the like for example by the CVD method, is used. Hereby, an abrasive cloth 4 can be prevented from being made round along the step difference between a semiconductor substrate 3 and the templates 2, and further the semiconductor substrate 3 can be prevented from being contaminated.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、半導体基板または
半導体基板上に形成されている薄膜等の被研磨材を研磨
する半導体製造装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a semiconductor manufacturing apparatus for polishing a semiconductor substrate or a material to be polished such as a thin film formed on the semiconductor substrate.

【0002】[0002]

【従来の技術】半導体装置の高集積化に伴い、素子分離
領域は微細化され、配線層は多層化する傾向にある。こ
のため、例えば半導体基板に形成された溝に絶縁物を埋
め込むトレンチ素子分離技術、あるいは配線層間の絶縁
膜を平坦化する平坦化技術等が半導体装置の製造におい
て非常に重要になってきている。
2. Description of the Related Art With the high integration of semiconductor devices, element isolation regions are becoming finer and wiring layers tend to be multi-layered. Therefore, for example, a trench element isolation technique of filling an insulator in a groove formed in a semiconductor substrate, a flattening technique of flattening an insulating film between wiring layers, and the like have become very important in the manufacture of semiconductor devices.

【0003】CMP(化学機械的研磨)法は、半導体基
板または半導体基板上の膜を化学的および機械的な作用
により研磨する方法であり、前述の埋め込み素子分離技
術または平坦化技術の有効な方法として実用化されつつ
ある。
The CMP (Chemical Mechanical Polishing) method is a method of polishing a semiconductor substrate or a film on the semiconductor substrate by a chemical and mechanical action, and is an effective method of the above-mentioned buried element isolation technique or planarization technique. It is being put to practical use as.

【0004】図3に、従来のCMP装置の研磨部の断面
構造を示す。従来のCMP装置の研磨部は、被研磨材と
して例えば半導体基板3の表面を研磨する研磨布4と、
半導体基板3の裏面を吸着する吸着盤1と、半導体基板
3の周囲を取り囲むように吸着盤1に固定された治具
(一般にテンプレートと呼ばれる)2とにより構成され
る。吸着盤1は半導体基板3の裏面を例えば真空吸引に
より吸着し、半導体基板3の表面が研磨布4に接触する
ように、加圧すると同時に回転して、半導体基板3表面
の研磨を行う。この時、テンプレート2は、回転により
半導体基板3が飛び散ることを防止する。
FIG. 3 shows a sectional structure of a polishing portion of a conventional CMP apparatus. The polishing section of the conventional CMP apparatus includes a polishing cloth 4 for polishing the surface of the semiconductor substrate 3 as a material to be polished,
A suction plate 1 for sucking the back surface of the semiconductor substrate 3 and a jig (generally called a template) 2 fixed to the suction plate 1 so as to surround the semiconductor substrate 3 are formed. The suction plate 1 sucks the back surface of the semiconductor substrate 3 by, for example, vacuum suction, pressurizes and simultaneously rotates so that the surface of the semiconductor substrate 3 contacts the polishing cloth 4, and polishes the surface of the semiconductor substrate 3. At this time, the template 2 prevents the semiconductor substrate 3 from scattering due to rotation.

【0005】ここで、従来のCMP装置のテンプレート
2は、半導体基板3の表面の研磨を妨害しないように、
半導体基板3の厚さより薄い厚さを有する。このため、
研磨布4に平行な半導体基板3の大部分の領域は均一に
研磨されるが、図3の円で囲まれた部分に示すように、
半導体基板3の端部では、半導体基板3とテンプレート
2との段差により、研磨布4が伸縮して丸くなる。この
ため、半導体基板3の端部が、他の領域より多く研磨さ
れて丸くなってしまうという問題がある。また、従来の
CMP装置のテンプレート2は、一般に有機化合物を材
料として使用しているため、これによる汚染が問題とな
っている。
Here, the template 2 of the conventional CMP apparatus is designed so as not to interfere with the polishing of the surface of the semiconductor substrate 3.
It has a thickness smaller than that of the semiconductor substrate 3. For this reason,
Although most of the region of the semiconductor substrate 3 parallel to the polishing cloth 4 is uniformly polished, as shown in the circled portion of FIG.
At the end of the semiconductor substrate 3, the polishing cloth 4 expands and contracts to be rounded due to the step between the semiconductor substrate 3 and the template 2. Therefore, there is a problem in that the end portion of the semiconductor substrate 3 is polished more than other regions and becomes round. Further, since the template 2 of the conventional CMP apparatus generally uses an organic compound as a material, contamination due to this is a problem.

【0006】[0006]

【発明が解決しようとする課題】このように、従来の半
導体製造装置では、テンプレートと半導体基板との段差
により、半導体基板の端部まで均一に研磨することがで
きないという問題があった。また、テンプレートの材料
として使用されている有機化合物により半導体基板が汚
染される可能性があるという問題があった。
As described above, the conventional semiconductor manufacturing apparatus has a problem that it is not possible to uniformly polish the end portion of the semiconductor substrate due to the step between the template and the semiconductor substrate. Further, there is a problem that the semiconductor substrate may be contaminated by the organic compound used as the material of the template.

【0007】本発明の目的は、テンプレートと半導体基
板との段差を低減することにより、半導体基板を均一に
研磨することを可能とし、半導体基板が汚染される可能
性のない半導体製造装置を提供することである。
An object of the present invention is to provide a semiconductor manufacturing apparatus capable of uniformly polishing a semiconductor substrate by reducing the step between the template and the semiconductor substrate and preventing the semiconductor substrate from being contaminated. That is.

【0008】[0008]

【課題を解決するための手段】上記課題を解決し目的を
達成するために、本発明による半導体製造装置は、被研
磨材の表面を研磨する研磨布と、前記被研磨材の裏面を
吸着して前記被研磨材を保持する吸着盤と、前記被研磨
材を囲うように前記被研磨材の周囲に設置された治具と
を具備し、前記治具の前記研磨布に対向する表面と前記
被研磨材の表面とを同一平面とするように前記治具を制
御する手段を具備することを特徴とする。
In order to solve the above-mentioned problems and to achieve the object, a semiconductor manufacturing apparatus according to the present invention comprises a polishing cloth for polishing the surface of a material to be polished, and a back surface of the material to be polished. And a jig installed around the material to be polished so as to surround the material to be polished, and a surface of the jig facing the polishing cloth and the jig. It is characterized by comprising means for controlling the jig so that the surface of the material to be polished is flush with the surface.

【0009】また、上記半導体製造装置は、前記被研磨
材の表面に対する前記治具の表面の高さを調節する手段
を具備することが可能である。さらに、前記治具の表面
の高さを調節する前記手段を、前記治具の表面の高さを
変化させる手段と、前記治具の表面に印加される圧力を
測定する手段と、前記圧力の測定値に基づいて前記高さ
を変化させる手段を制御する手段とにより構成すること
ができる。
Further, the semiconductor manufacturing apparatus may include means for adjusting the height of the surface of the jig with respect to the surface of the material to be polished. Further, the means for adjusting the height of the surface of the jig includes means for changing the height of the surface of the jig, means for measuring the pressure applied to the surface of the jig, and And a means for controlling the means for changing the height based on the measured value.

【0010】また、前記半導体製造装置は、前記治具の
表面の高さを調節する前記手段を複数具備し、それぞれ
が独立に調節可能に構成することも可能である。さら
に、前記半導体製造装置は、前記治具の少なくとも前記
被研磨材と接触する部分が、Si、SiC、サファイア
からなるグループのいずれかひとつを原料とする焼結物
上にSiO2 膜が成膜されている物質により形成されて
いることを特徴とする。
Further, the semiconductor manufacturing apparatus may be provided with a plurality of the means for adjusting the height of the surface of the jig, each of which can be adjusted independently. Further, in the semiconductor manufacturing apparatus, a SiO 2 film is formed on a sintered product of which at least a portion of the jig that comes into contact with the material to be polished is made of any one of the groups consisting of Si, SiC, and sapphire. It is characterized in that it is formed of a substance.

【0011】このように、本発明による半導体製造装置
は、治具の表面と被研磨材の表面とを同一平面とするよ
うに前記治具を制御する手段を具備しているため、研磨
中に治具の表面と被研磨材の表面との間の段差に沿って
研磨布が丸まることを防止することにより、被研磨材の
端部が中央部に比べてより研磨されることを抑制し、被
研磨材を均一に研磨することが可能となる。
As described above, the semiconductor manufacturing apparatus according to the present invention is provided with the means for controlling the jig so that the surface of the jig and the surface of the material to be polished are flush with each other. By preventing the polishing cloth from rolling along the step between the surface of the jig and the surface of the material to be polished, it is possible to prevent the edge of the material to be polished from being more polished than the central portion, It is possible to uniformly polish the material to be polished.

【0012】また、被研磨材の表面に対する治具の表面
の高さを調節する手段を具備する上記半導体製造装置で
は、治具の表面の高さを調節することにより治具の表面
と被研磨材の表面とを同一平面とすることができるた
め、上記のように、被研磨材を均一に研磨することが可
能となる。
Further, in the above semiconductor manufacturing apparatus having means for adjusting the height of the surface of the jig with respect to the surface of the material to be polished, the height of the surface of the jig is adjusted so that the surface of the jig and the surface to be polished are adjusted. Since the surface of the material can be made flush with the surface of the material, the material to be polished can be uniformly polished as described above.

【0013】さらに、治具の表面の高さを調節する前記
手段が、前記治具の表面の高さを変化させる手段と、前
記治具の表面に印加される圧力を測定する手段と、前記
圧力の測定値に基づいて前記高さを変化させる手段を制
御する手段とにより構成される前記半導体製造装置で
は、被研磨材の表面に対して治具の表面が突出している
場合には治具の表面に印加される圧力が高くなり、被研
磨材の表面に対して治具の表面が後退している場合には
治具の表面に印加される圧力が低くなるため、治具の表
面に印加される圧力を測定して前述のような圧力の変化
を検知することにより、被研磨材の表面に対する治具の
表面の高さを判断することができる。また、このような
圧力の測定値に基づいて治具の表面の高さを変化させる
手段を制御することにより、治具の表面の高さを調節し
て治具の表面と被研磨材の表面とを同一平面とすること
ができる。このため、前述のように、被研磨材を均一に
研磨することが可能となる。
The means for adjusting the height of the surface of the jig further comprises means for changing the height of the surface of the jig, means for measuring the pressure applied to the surface of the jig, In the semiconductor manufacturing apparatus configured by means for controlling means for changing the height based on the measured value of pressure, in the case where the surface of the jig is projected with respect to the surface of the material to be polished, the jig is The pressure applied to the surface of the jig becomes high and the pressure applied to the surface of the jig becomes low when the surface of the jig recedes with respect to the surface of the material to be polished. By measuring the applied pressure and detecting the change in pressure as described above, the height of the surface of the jig with respect to the surface of the material to be polished can be determined. In addition, by controlling the means for changing the height of the surface of the jig based on the measured value of such pressure, the height of the surface of the jig is adjusted and the surface of the jig and the surface of the material to be polished are adjusted. And can be coplanar. Therefore, as described above, the material to be polished can be uniformly polished.

【0014】また、治具の表面の高さを調節する前記手
段を複数具備し、それぞれが独立に調節可能に構成され
る前記半導体製造装置では、被研磨材を囲うように被研
磨材の周囲に設置された治具の表面の高さを複数箇所に
おいてそれぞれ独立に調節することができるため、被研
磨材の表面に対して治具の表面の高さをより細かく制御
することができる。これにより、被研磨材をより均一性
よく研磨することが可能となる。
Further, in the semiconductor manufacturing apparatus having a plurality of means for adjusting the height of the surface of the jig, each of which is independently adjustable, the periphery of the material to be polished is surrounded by the material to be polished so as to surround the material to be polished. Since it is possible to independently adjust the height of the surface of the jig installed at a plurality of points, it is possible to more finely control the height of the surface of the jig with respect to the surface of the material to be polished. This makes it possible to polish the material to be polished more uniformly.

【0015】さらに、治具の少なくとも前記被研磨材と
接触する部分が、Si、SiC、サファイアからなるグ
ループのいずれかひとつを原料とする焼結物上にSiO
2 膜が成膜されている物質により形成されている前記半
導体製造装置では、治具に起因して被研磨材を汚染する
可能性を低減することができる。
Further, at least a portion of the jig that comes into contact with the material to be polished is SiO 2 on a sintered product made of any one of the group consisting of Si, SiC and sapphire.
In the semiconductor manufacturing apparatus in which the two films are formed of the material in which the two films are formed, it is possible to reduce the possibility of contaminating the material to be polished due to the jig.

【0016】[0016]

【発明の実施の形態】以下、本発明の実施の形態につい
て、図面を参照して説明する。図1に、本発明によるC
MP装置の研磨部の構造を示す。(a)は吸着盤1の上
面図、(b)は吸着盤1を半導体基板3の研磨面側から
見た図、(c)は(a)のA−A´断面図である。
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows C according to the present invention.
The structure of the polishing part of an MP apparatus is shown. (A) is a top view of the suction disk 1, (b) is a view of the suction disk 1 seen from the polishing surface side of the semiconductor substrate 3, and (c) is a sectional view taken along the line AA 'of (a).

【0017】本実施の形態によるCMP装置の研磨部
は、従来と同様に、被研磨材として半導体基板3の表面
を研磨する研磨布4と、半導体基板3の裏面を吸着する
吸着盤1と、半導体基板3の周囲を取り囲む治具として
テンプレート2とを具備するが、従来と異なり、テンプ
レート2は吸着盤1に固定されていない。さらに、本実
施の形態によるCMP装置は、テンプレート2の高さを
調整する機構5を具備する。
The polishing section of the CMP apparatus according to the present embodiment has a polishing cloth 4 for polishing the surface of the semiconductor substrate 3 as a material to be polished, and a suction plate 1 for sucking the back surface of the semiconductor substrate 3, as in the conventional case. Although the template 2 is provided as a jig that surrounds the periphery of the semiconductor substrate 3, the template 2 is not fixed to the suction plate 1 unlike the conventional case. Furthermore, the CMP apparatus according to this embodiment includes a mechanism 5 for adjusting the height of the template 2.

【0018】この高さ調整機構5は、例えば吸着盤1を
介してテンプレート2と反対側に設置されている。吸着
盤1は、例えば4か所に貫通する貫通口9を有し、この
貫通口9を貫通するように挿入された軸6により、テン
プレート2と高さ調整機構5とが接続されている。
The height adjusting mechanism 5 is installed, for example, on the opposite side of the template 2 via the suction plate 1. The suction board 1 has through holes 9 penetrating therethrough at four places, for example, and the template 2 and the height adjusting mechanism 5 are connected by a shaft 6 inserted so as to penetrate the through holes 9.

【0019】高さ調整機構5は、テンプレート2に固定
されている軸6に例えば空気圧等を加える機能と、例え
ばテンプレート2の表面に加わる圧力を測定する機能
と、この圧力の測定値に応じて軸6への加圧を制御する
機能とを具備する。
The height adjusting mechanism 5 has a function of applying, for example, air pressure to the shaft 6 fixed to the template 2, a function of measuring the pressure applied to the surface of the template 2, and a function of measuring the pressure. It has a function of controlling pressurization to the shaft 6.

【0020】また、本実施の形態によるテンプレート2
は、例えばSiC等を原料とした焼結物上に例えばCV
D(化学気相成長)法によりSiO2 が蒸着された物質
を用いて、形成されている。
Further, the template 2 according to the present embodiment
Is, for example, CV on a sintered product made of, for example, SiC.
It is formed using a substance in which SiO 2 is deposited by the D (chemical vapor deposition) method.

【0021】次に、図1の(c)および図2を用いて、
本実施の形態によるテンプレート2を用いて研磨を行う
方法について、説明する。まず、研磨布4と半導体基板
3の表面を接触させる前に、半導体基板3を例えば真空
吸引により吸着盤1に固定する。この時、図1の(c)
に示すように、テンプレート2の表面は、半導体基板3
の表面より後退させておく。
Next, referring to FIG. 1 (c) and FIG.
A method of polishing using template 2 according to the present embodiment will be described. First, before the polishing cloth 4 and the surface of the semiconductor substrate 3 are brought into contact with each other, the semiconductor substrate 3 is fixed to the suction plate 1 by, for example, vacuum suction. At this time, (c) of FIG.
As shown in FIG.
Retreat from the surface of.

【0022】次に、研磨布4と半導体基板3の表面を接
触させた後に、軸6に例えば空気圧を加えて、テンプレ
ート2を下降させる。この時、同時に、テンプレート2
の表面に加わる圧力を測定する。図2に示すように、テ
ンプレート2の表面と研磨布4とが接触すると、テンプ
レート2の表面に加わる圧力が増加する。このため、制
御機構は、この測定値とあらかじめ設定された圧力値と
を比較し、測定値があらかじめ設定された圧力値になっ
た時点で、空気圧等を加えることを停止する。
Next, after bringing the polishing cloth 4 and the surface of the semiconductor substrate 3 into contact with each other, air pressure is applied to the shaft 6 to lower the template 2. At the same time, Template 2
Measure the pressure exerted on the surface of the. As shown in FIG. 2, when the surface of the template 2 and the polishing cloth 4 come into contact with each other, the pressure applied to the surface of the template 2 increases. Therefore, the control mechanism compares the measured value with the preset pressure value, and stops applying the air pressure or the like when the measured value reaches the preset pressure value.

【0023】この後、研磨を開始する。研磨中は、常
に、テンプレート2の表面に加わる圧力を測定し、この
測定値があらかじめ設定された圧力値となるように、軸
6への加圧を制御する。このあらかじめ設定される圧力
とは、例えば、半導体基板3の表面とテンプレート2の
表面とが、研磨布4に対して同一平面上に並ぶ時の圧力
として設定することができる。
After that, polishing is started. During polishing, the pressure applied to the surface of the template 2 is constantly measured, and the pressure applied to the shaft 6 is controlled so that the measured value becomes a preset pressure value. The preset pressure can be set, for example, as the pressure when the surface of the semiconductor substrate 3 and the surface of the template 2 are aligned on the same plane with respect to the polishing cloth 4.

【0024】このように、本実施の形態によるCMP装
置では、テンプレート2の高さを調整する機能を有し、
半導体基板3の表面とテンプレート2の表面とが、研磨
布4に対して常に同一平面上に並ぶように、テンプレー
ト2の高さを調整するため、図2の円内に示すように、
半導体基板3の端部において、研磨布4が半導体基板3
とテンプレート2の段差に沿って丸まることを防止する
ことができる。このため、半導体基板3の表面を、端部
まで均一に研磨することが可能となる。
As described above, the CMP apparatus according to this embodiment has a function of adjusting the height of the template 2.
In order to adjust the height of the template 2 so that the surface of the semiconductor substrate 3 and the surface of the template 2 are always aligned on the same plane with respect to the polishing cloth 4, as shown in the circle in FIG.
At the edge of the semiconductor substrate 3, the polishing cloth 4 is
Therefore, it is possible to prevent the template 2 from rolling along the step. Therefore, the surface of the semiconductor substrate 3 can be evenly polished up to the end.

【0025】また、半導体基板3が研磨されるに従って
テンプレート2も同時に研磨されるが、一般にこれらの
研磨速度は必ずしも等しくない。このため、従来のよう
にテンプレート2が吸着盤1に固定されている場合に
は、最初にテンプレート2の表面の高さと半導体基板3
の表面の高さとを等しくしておいても、研磨中にこれら
の高さに差が生じる可能性がある。しかし、本実施の形
態によるCMP装置では、テンプレート2の表面の高さ
を常に調整できるため、テンプレート2の表面と半導体
基板3の表面とを、常に同一平面とすることが可能であ
る。
The template 2 is also polished at the same time as the semiconductor substrate 3 is polished, but generally the polishing rates are not always equal. Therefore, when the template 2 is fixed to the suction plate 1 as in the conventional case, first, the height of the surface of the template 2 and the semiconductor substrate 3 are increased.
Even if the surface heights of the two are made equal, there is a possibility that these heights may differ during polishing. However, in the CMP apparatus according to the present embodiment, the height of the surface of the template 2 can always be adjusted, so that the surface of the template 2 and the surface of the semiconductor substrate 3 can always be flush with each other.

【0026】さらに、研磨に伴い、半導体基板3の表面
の高さが変化するため、テンプレート2の高さは、常に
半導体基板3に対して相対的に調整される必要がある。
本実施の形態では、テンプレート2の表面に加わる圧力
を測定して、高さ調整を行うが、テンプレート2の表面
に加わる圧力は半導体基板3の表面とテンプレート2の
表面との位置関係により変化する。例えば、テンプレー
ト2の表面が半導体基板3の表面に比べて突出している
場合には、測定される圧力は大きくなる。反対に、テン
プレート2の表面が半導体基板3の表面に比べて後退し
ている場合には、測定される圧力は小さくなる。このた
め、テンプレート2の表面に加わる圧力を測定すること
により、半導体基板3の表面の高さとテンプレート2の
表面の高さとの相対的な位置関係を常に検知することが
可能となる。このようにして、常に変化する半導体基板
3の表面に対してテンプレート2の表面を常に同一平面
上に保持することができる。。
Furthermore, since the height of the surface of the semiconductor substrate 3 changes with polishing, the height of the template 2 must always be adjusted relative to the semiconductor substrate 3.
In this embodiment, the pressure applied to the surface of the template 2 is measured to adjust the height, but the pressure applied to the surface of the template 2 changes depending on the positional relationship between the surface of the semiconductor substrate 3 and the surface of the template 2. . For example, when the surface of the template 2 is projected as compared with the surface of the semiconductor substrate 3, the measured pressure is large. On the contrary, when the surface of the template 2 is recessed as compared with the surface of the semiconductor substrate 3, the measured pressure is small. Therefore, by measuring the pressure applied to the surface of the template 2, it is possible to always detect the relative positional relationship between the height of the surface of the semiconductor substrate 3 and the height of the surface of the template 2. In this way, the surface of the template 2 can always be held on the same plane with respect to the constantly changing surface of the semiconductor substrate 3. .

【0027】なお、上記実施の形態では、空気圧によ
り、テンプレート2の表面の高さを調節したが、これに
限らず、例えば機械的に高さを制御する方法、または電
気的に圧力を制御する方法等、他の方法を用いることも
可能である。
In the above embodiment, the height of the surface of the template 2 is adjusted by air pressure. However, the invention is not limited to this. For example, a method of mechanically controlling the height or electrically controlling the pressure is used. It is also possible to use other methods such as the method.

【0028】また、本実施の形態では、テンプレート2
の下降を開始した時点で、圧力の測定と加圧の制御とを
開始しているが、例えば、テンプレート2を研磨布4に
接触させるまでは、目視等により高さの調整を行い、テ
ンプレート2を研磨布4に接触させた後に、圧力の測定
と加圧の制御とを開始することも可能である。
In the present embodiment, the template 2
The measurement of the pressure and the control of the pressurization are started at the time when the descent of the template 2 is started. For example, until the template 2 is brought into contact with the polishing cloth 4, the height is adjusted by visual observation, etc. It is also possible to start the measurement of pressure and the control of pressurization after contacting the polishing cloth 4 with the polishing cloth 4.

【0029】また、上記実施の形態において、高さ調整
機構5は、複数箇所に独立して設置されることが望まし
い。このようにして、テンプレート2の表面の高さを複
数箇所においてそれぞれ独立に調整することにより、テ
ンプレート2の表面が、半導体基板3の周辺端部すべて
の表面に対して、均一に同一平面とすることが可能とな
る。
Further, in the above embodiment, it is desirable that the height adjusting mechanism 5 be independently installed at a plurality of locations. In this way, the height of the surface of the template 2 is independently adjusted at a plurality of points, so that the surface of the template 2 is uniformly flush with all the peripheral edge surfaces of the semiconductor substrate 3. It becomes possible.

【0030】ただし、軸6を挿入するための貫通口9を
複数箇所に設置し、1つの高さ調整機構5を共有するこ
とも可能である。この場合、軸6を挿入するための貫通
口9は、吸着盤1に3か所以上設置することが望まし
い。
However, it is also possible to install through holes 9 for inserting the shaft 6 at a plurality of positions and share one height adjusting mechanism 5. In this case, it is desirable that three or more through holes 9 for inserting the shaft 6 are provided in the suction plate 1.

【0031】さらに、本実施の形態によるテンプレート
2は、例えばSiC等の焼結物上に例えばCVD(化学
気相成長)法によりSiO2 が蒸着された物質を用い
て、形成されているため、半導体基板3が汚染されるこ
とを防止することができる。
Further, since the template 2 according to the present embodiment is formed by using a substance in which SiO 2 is vapor-deposited by, for example, a CVD (chemical vapor deposition) method on a sintered material such as SiC, It is possible to prevent the semiconductor substrate 3 from being contaminated.

【0032】なお、テンプレート2は、全体を上記のよ
うにCVD蒸着された焼結物を用いて形成することが望
ましいが、例えば半導体基板3と接触する表面のみを、
上記の材料により形成することも可能である。
It is desirable that the template 2 is entirely formed by using the sintered material vapor-deposited by CVD as described above. However, for example, only the surface in contact with the semiconductor substrate 3 is
It is also possible to form the above materials.

【0033】また、SiCに限らず、例えばSiまたは
サファイアを原料とした焼結物等の、半導体基板3を汚
染する可能性のない材料であれば、他の材料を用いるこ
とも可能である。
Further, not limited to SiC, other materials such as a sintered product of Si or sapphire as a raw material can be used as long as they do not contaminate the semiconductor substrate 3.

【0034】[0034]

【発明の効果】以上のように、本発明による半導体製造
装置では、テンプレートと半導体基板との段差を低減す
ることにより、半導体基板を均一に研磨することが可能
となり、半導体基板が汚染される可能性をなくすことが
できる。
As described above, in the semiconductor manufacturing apparatus according to the present invention, the semiconductor substrate can be uniformly polished by reducing the step between the template and the semiconductor substrate, and the semiconductor substrate can be contaminated. You can eliminate the sex.

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

【図1】本発明による半導体製造装置の構造を示す上面
図、底面図および断面図。
FIG. 1 is a top view, a bottom view and a sectional view showing the structure of a semiconductor manufacturing apparatus according to the present invention.

【図2】本発明による半導体製造装置の断面図。FIG. 2 is a sectional view of a semiconductor manufacturing apparatus according to the present invention.

【図3】従来の半導体製造装置。FIG. 3 is a conventional semiconductor manufacturing apparatus.

【符号の説明】[Explanation of symbols]

1…吸着盤、 2…テンプレート、 3…半導体基板、 4…研磨布、 5…高さ調整機構、 6…軸、 8…圧力測定装置、 9…貫通口 DESCRIPTION OF SYMBOLS 1 ... Suction board, 2 ... Template, 3 ... Semiconductor substrate, 4 ... Polishing cloth, 5 ... Height adjustment mechanism, 6 ... Shaft, 8 ... Pressure measuring device, 9 ... Through hole

───────────────────────────────────────────────────── フロントページの続き (72)発明者 西村 隆宣 神奈川県横浜市磯子区新杉田町8番地 株 式会社東芝横浜事業所内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Takanori Nishimura Inventor Takanobu Nishimura 8 Shinsita-cho, Isogo-ku, Yokohama-shi, Kanagawa Stock company Toshiba Yokohama office

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 被研磨材の表面を研磨する研磨布と、前
記被研磨材の裏面を吸着して前記被研磨材を保持する吸
着盤と、前記被研磨材を囲うように前記被研磨材の周囲
に設置された治具とを具備する半導体製造装置におい
て、前記治具の前記研磨布に対向する表面と前記被研磨
材の表面とを同一平面とするように前記治具を制御する
手段を具備することを特徴とする半導体製造装置。
1. A polishing cloth for polishing the surface of a material to be polished, a suction plate for adsorbing the back surface of the material to be polished and holding the material to be polished, and the material to be polished so as to surround the material to be polished. In a semiconductor manufacturing apparatus comprising a jig installed around the jig, means for controlling the jig so that the surface of the jig facing the polishing cloth and the surface of the material to be polished are flush with each other. A semiconductor manufacturing apparatus comprising:
【請求項2】 前記被研磨材の表面に対する前記治具の
表面の高さを調節する手段を具備する請求項1記載の半
導体製造装置。
2. The semiconductor manufacturing apparatus according to claim 1, further comprising means for adjusting the height of the surface of the jig with respect to the surface of the material to be polished.
【請求項3】 前記治具の表面の高さを調節する前記手
段は、前記治具の表面の高さを変化させる手段と、前記
治具の表面に印加される圧力を測定する手段と、前記圧
力の測定値に基づいて前記高さを変化させる手段を制御
する手段とにより構成される請求項2記載の半導体製造
装置。
3. The means for adjusting the height of the surface of the jig comprises means for changing the height of the surface of the jig, and means for measuring the pressure applied to the surface of the jig. The semiconductor manufacturing apparatus according to claim 2, further comprising: a unit that controls a unit that changes the height based on the measured value of the pressure.
【請求項4】 前記治具の表面の高さを調節する前記手
段を複数具備し、それぞれが独立に調節可能に構成され
る請求項2または3記載の半導体製造装置。
4. The semiconductor manufacturing apparatus according to claim 2, further comprising a plurality of means for adjusting the height of the surface of the jig, each of which is configured to be independently adjustable.
【請求項5】 前記治具の少なくとも前記被研磨材と接
触する部分が、Si、SiC、サファイアからなるグル
ープのいずれかひとつを原料とする焼結物上にSiO2
膜が成膜されている物質により形成されている請求項1
乃至4記載の半導体製造装置。
5. At least a portion of the jig, which is in contact with the material to be polished, is made of SiO 2 on a sintered material made of any one of the group consisting of Si, SiC, and sapphire.
The film is formed of the material on which the film is formed.
5. The semiconductor manufacturing apparatus as described in 4 above.
JP376896A 1996-01-12 1996-01-12 Semiconductor manufacturing device Pending JPH09193010A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP376896A JPH09193010A (en) 1996-01-12 1996-01-12 Semiconductor manufacturing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP376896A JPH09193010A (en) 1996-01-12 1996-01-12 Semiconductor manufacturing device

Publications (1)

Publication Number Publication Date
JPH09193010A true JPH09193010A (en) 1997-07-29

Family

ID=11566358

Family Applications (1)

Application Number Title Priority Date Filing Date
JP376896A Pending JPH09193010A (en) 1996-01-12 1996-01-12 Semiconductor manufacturing device

Country Status (1)

Country Link
JP (1) JPH09193010A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000045993A1 (en) * 1999-02-02 2000-08-10 Ebara Corporation Wafer holder and polishing device
US6168684B1 (en) 1997-12-04 2001-01-02 Nec Corporation Wafer polishing apparatus and polishing method
JP2009206475A (en) * 2008-01-30 2009-09-10 Tokyo Seimitsu Co Ltd Wafer processing method of processing wafer having bumps formed thereon and apparatus for processing wafer
JP2014155981A (en) * 2013-02-15 2014-08-28 Takada Corp Polishing jig, and sample mounting jig for setting sample on polishing jig
CN105290957A (en) * 2015-10-12 2016-02-03 京东方光科技有限公司 Fixture, grinding method and grinding apparatus
US20220111484A1 (en) * 2020-10-14 2022-04-14 Applied Materials, Inc. Polishing head retaining ring tilting moment control
CN118284025A (en) * 2024-06-04 2024-07-02 江苏贺鸿电子有限公司 Component feeding device and process for assembling PCB
US12214469B2 (en) 2021-10-14 2025-02-04 Applied Materials, Inc. Polishing head retaining ring tilting moment control

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6168684B1 (en) 1997-12-04 2001-01-02 Nec Corporation Wafer polishing apparatus and polishing method
WO2000045993A1 (en) * 1999-02-02 2000-08-10 Ebara Corporation Wafer holder and polishing device
US6435956B1 (en) 1999-02-02 2002-08-20 Ebara Corporation Wafer holder and polishing device
JP2009206475A (en) * 2008-01-30 2009-09-10 Tokyo Seimitsu Co Ltd Wafer processing method of processing wafer having bumps formed thereon and apparatus for processing wafer
JP2014155981A (en) * 2013-02-15 2014-08-28 Takada Corp Polishing jig, and sample mounting jig for setting sample on polishing jig
CN105290957A (en) * 2015-10-12 2016-02-03 京东方光科技有限公司 Fixture, grinding method and grinding apparatus
US20220111484A1 (en) * 2020-10-14 2022-04-14 Applied Materials, Inc. Polishing head retaining ring tilting moment control
WO2022081409A1 (en) * 2020-10-14 2022-04-21 Applied Materials, Inc. Polishing head retaining ring tilting moment control
US11623321B2 (en) 2020-10-14 2023-04-11 Applied Materials, Inc. Polishing head retaining ring tilting moment control
US12214469B2 (en) 2021-10-14 2025-02-04 Applied Materials, Inc. Polishing head retaining ring tilting moment control
CN118284025A (en) * 2024-06-04 2024-07-02 江苏贺鸿电子有限公司 Component feeding device and process for assembling PCB

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