JPS62271433A - Ion beam etching system - Google Patents

Ion beam etching system

Info

Publication number
JPS62271433A
JPS62271433A JP11347286A JP11347286A JPS62271433A JP S62271433 A JPS62271433 A JP S62271433A JP 11347286 A JP11347286 A JP 11347286A JP 11347286 A JP11347286 A JP 11347286A JP S62271433 A JPS62271433 A JP S62271433A
Authority
JP
Japan
Prior art keywords
wafer
ion
ion beam
accelerating electrode
beam etching
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
JP11347286A
Other languages
Japanese (ja)
Inventor
Toshiaki Yoshikawa
俊明 吉川
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP11347286A priority Critical patent/JPS62271433A/en
Publication of JPS62271433A publication Critical patent/JPS62271433A/en
Pending legal-status Critical Current

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  • Drying Of Semiconductors (AREA)

Abstract

PURPOSE:To prevent the occurrence of nonuniformity in etching and to make a structure of a wafer holder light in weight, by rotating an ion accelerating electrode so as to dispense with the rotating motion of an object to be processed in an ion beam etching system. CONSTITUTION:Etching of a wafer is implemented by generating ions in an ion source 1 and by accelerating the ions by an ion accelerating electrode 2 and applying the same to the wafer on a wafer table 3. On the occasion, the electrode 2 is rotated by the drive of a motor 5 transmitted through a gear 6. Thereby the rotating motion of the wafer is dispensed with, the occurrence of nonuniformity in etching is prevented, and a structure of a wafer holder is made lighter in weight.

Description

【発明の詳細な説明】 3、発明の詳細な説明 [産業上の利用分野] 本発明は、シリコンウェハ等の被処理物体にイオンビー
ムを照射してドライエツチングを行なうイオンビームエ
ツチング装置に関する。
Detailed Description of the Invention 3. Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an ion beam etching apparatus that performs dry etching by irradiating an object to be processed, such as a silicon wafer, with an ion beam.

[従来の技術] 従来、この種の装置は第2図のようにイオン源1、イオ
ン加速電極2、ウェハテーブル3およびrウェハホルダ
4とから構成されていた。そして、ウェハをウェテーブ
ル3上に12し、イオン源1で発生させたイオンをイオ
ン加速電極2により該ウェハに照射してエツチングを行
なっていた。このとき、ウェハテーブル3は、エツチン
グむらを防ぐため回転させたり、第3図のようにテーパ
ーエツチングを行なうためにイオンビーム照射方向に対
しである角度を持たせたり、第4図のようにウェハ交換
のため上下させたりする必要があった。
[Prior Art] Conventionally, this type of apparatus has been comprised of an ion source 1, an ion accelerating electrode 2, a wafer table 3, and an r-wafer holder 4, as shown in FIG. The wafer is placed on a wafer table 3, and ions generated by the ion source 1 are irradiated onto the wafer by the ion accelerating electrode 2 to perform etching. At this time, the wafer table 3 may be rotated to prevent uneven etching, or set at a certain angle to the ion beam irradiation direction to perform taper etching as shown in FIG. I had to move it up and down to replace it.

また、加熱防止のためウェハホルダ4は水冷されていた
Further, the wafer holder 4 was water-cooled to prevent heating.

[発明が解決しようとする問題点] しかし、このような従来の方式では、ウェハテーブル4
が回転するため、同軸の冷却水ジヨイントをウェハホル
ダ4の中心に配設し、この周囲に、ウェハテーブル3の
上下移動のための駆動源および伝逼罰構を配設しなけれ
ばならない。このため、ウェハホルダ4は構造が?!2
雑で重くなるという不都合があった。
[Problems to be solved by the invention] However, in such a conventional method, the wafer table 4
Since the wafer table 3 rotates, a coaxial cooling water joint must be provided at the center of the wafer holder 4, and a driving source and a transmission mechanism for vertically moving the wafer table 3 must be provided around this joint. For this reason, the structure of the wafer holder 4 is different. ! 2
This had the disadvantage of being sloppy and heavy.

本発明の目的は、この従来例の問題点に鑑み、イオンビ
ームエツチング装置において、ウェハホルダの構造を簡
略化し計ω化することにある。
SUMMARY OF THE INVENTION In view of the problems of the prior art, it is an object of the present invention to simplify the structure of a wafer holder in an ion beam etching apparatus and reduce the number of wafers.

[問題点を解決するための手段および作用]本発明のイ
オンビームエツチング装置は、イオン源で発生するイオ
ンをイオン加速電極により被処理物体に照射して該被処
理物体のエツチングを行なうイオンビームエツチング装
置であって、イオン加速′P1極の側を回転させること
により被処理物体の回転運動を不要にしたものである。
[Means and operations for solving the problems] The ion beam etching apparatus of the present invention performs ion beam etching in which the object to be processed is etched by irradiating the object with ions generated in an ion source using an ion accelerating electrode. This apparatus eliminates the need for rotational movement of the object to be processed by rotating the ion acceleration 'P1 pole side.

[実施例1 以下、図面を用いて本発明の詳細な説明する。[Example 1 Hereinafter, the present invention will be explained in detail using the drawings.

第1図は、本発明の一実施例に係るイオンビームエツチ
ング装置の構成を示す模式図である。同図において、1
はイオン源、2はイオン源が発生するイオンをウェハに
向けて加速させるイオン加速電極、3はエツチングされ
るウェハが載置されるウェハテーブル、4はウェハテー
ブル3を支持するウェハホルダ、5はイオン加速電極2
を回転させるためのモータ、6はモータ5の運動をイオ
ン加速電極2に伝速するためのギアである。
FIG. 1 is a schematic diagram showing the configuration of an ion beam etching apparatus according to an embodiment of the present invention. In the same figure, 1
2 is an ion source, 2 is an ion acceleration electrode that accelerates ions generated by the ion source toward the wafer, 3 is a wafer table on which the wafer to be etched is placed, 4 is a wafer holder that supports the wafer table 3, and 5 is an ion accelerating electrode. Accelerating electrode 2
6 is a gear for transmitting the motion of the motor 5 to the ion accelerating electrode 2.

上記構成において、ウェハのエツチングは、イオン源1
でイオンを発生し、該イオンをイオン加速電極2により
加速してウェハテーブル3上のウェハに照射することに
より行なう。ただし、この間、モータ5の駆動によりギ
ア6を介してイオン加速電極2が回転される。このとき
、イオン加速電極20回転は、ウェハテーブル3を回転
させた場合と同様にエツチングむらを防ぐ働きをする。
In the above configuration, the wafer is etched by the ion source 1.
This is carried out by generating ions, accelerating the ions with the ion accelerating electrode 2, and irradiating the wafer on the wafer table 3 with the ions. However, during this time, the ion accelerating electrode 2 is rotated by the drive of the motor 5 via the gear 6. At this time, rotating the ion accelerating electrode 20 times serves to prevent uneven etching in the same way as rotating the wafer table 3.

[発明の効果] 以上のように、本発明によると、イオンビームエツチン
グ装置において、被処理物体の支持装置の構造が複雑で
あることの原因であった被処理物体の回転運動を不要に
したため、冷却水の配管を非常に簡単にし、被処理物体
も上下方向へ移動あるいは傾かせるだけで済ませること
ができる。つまり、被処理物体の支持装置のv4造を簡
単にし、軽く小ざくすることができる。
[Effects of the Invention] As described above, according to the present invention, the rotary movement of the object to be processed, which was the cause of the complicated structure of the support device for the object to be processed, is no longer necessary in the ion beam etching apparatus. The cooling water piping is extremely simple, and the object to be treated can be moved or tilted in the vertical direction. In other words, the V4 structure of the support device for the object to be processed can be simplified and made lighter and smaller.

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

第1図は、本発明の一実施例に係るイオンビームエツチ
ング装置の構成を示す模式図、第2〜4図は、従来のイ
オンビームエツチング装置の構成およびウェハテーブル
3の動作を示す模式図である。 1:イオン源、2:イオン加速電極、 3:ウェハテーブル、4:ウェハホルダ、5:イオン加
速電極駆動用モータ、 6:イオン加速電極駆動ギア。
FIG. 1 is a schematic diagram showing the configuration of an ion beam etching apparatus according to an embodiment of the present invention, and FIGS. 2 to 4 are schematic diagrams showing the configuration of a conventional ion beam etching apparatus and the operation of the wafer table 3. be. 1: ion source, 2: ion accelerating electrode, 3: wafer table, 4: wafer holder, 5: ion accelerating electrode driving motor, 6: ion accelerating electrode driving gear.

Claims (1)

【特許請求の範囲】[Claims] イオン源で発生するイオンをイオン加速電極により被処
理物体に照射して該被処理物体のエッチングを行なうイ
オンビームエッチング装置であつて、イオン加速電極が
回転することを特徴とするイオンビームエッチング装置
An ion beam etching apparatus that etches a processed object by irradiating the processed object with ions generated by an ion source using an ion accelerating electrode, the ion beam etching apparatus characterized in that the ion accelerating electrode rotates.
JP11347286A 1986-05-20 1986-05-20 Ion beam etching system Pending JPS62271433A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11347286A JPS62271433A (en) 1986-05-20 1986-05-20 Ion beam etching system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11347286A JPS62271433A (en) 1986-05-20 1986-05-20 Ion beam etching system

Publications (1)

Publication Number Publication Date
JPS62271433A true JPS62271433A (en) 1987-11-25

Family

ID=14613119

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11347286A Pending JPS62271433A (en) 1986-05-20 1986-05-20 Ion beam etching system

Country Status (1)

Country Link
JP (1) JPS62271433A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011521163A (en) * 2008-05-19 2011-07-21 アストリウム エスアーエス Spacecraft electric thruster

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011521163A (en) * 2008-05-19 2011-07-21 アストリウム エスアーエス Spacecraft electric thruster

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