JPH0493945A - Photomask - Google Patents

Photomask

Info

Publication number
JPH0493945A
JPH0493945A JP2208935A JP20893590A JPH0493945A JP H0493945 A JPH0493945 A JP H0493945A JP 2208935 A JP2208935 A JP 2208935A JP 20893590 A JP20893590 A JP 20893590A JP H0493945 A JPH0493945 A JP H0493945A
Authority
JP
Japan
Prior art keywords
frame
pellicle
photomask
height
spacer
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
JP2208935A
Other languages
Japanese (ja)
Inventor
Hiroo Sato
浩男 佐藤
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson 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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP2208935A priority Critical patent/JPH0493945A/en
Publication of JPH0493945A publication Critical patent/JPH0493945A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To allow the easy varying of the height of a pellicle frame by dividing this frame to a pellicle frame on which a pellicle film is extended and a fixing frame fixed by an adhesive to a photomask and inserting a spacer therebetween. CONSTITUTION:The pellicle frame 2 and the fixing frame 3 are already con nected by lock screws 6 at the time of extending the first pellicle to the photomask This pellicle is fixed to the surface of the mask 5 on which Cr patterns 8 are attached by using the adhesive 4. The height of the pellicle film 1 of this time form the patterns 8 is equal to the height of the frame 2 and the frame 3 and is about 6mm. If, however, foreign matter is transferred onto the substrate, the screws 6 are removed and the spacer 9 having about 2mm height of the frame is inserted between the frame 2 and the frame 3. The spacer 7 and the frame 3 are then fixed at four corners of the frame 3 by using the lock screws 6 longer by as much as the spacers 7 than the length at the time of connecting the pellicle frame and the fixing frame. The foreign matter on the pellicle film 1 is defocused in this way and is hardly transferred onto a semiconductor substrate.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、フォトマスクの構造に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to the structure of a photomask.

〔従来の技術〕[Conventional technology]

従来の技術は、第2図の通りであり、ペリクル枠2の一
方にペリクル膜1が張り付けられており、その反対側に
接着剤4が付いている。
The conventional technique is as shown in FIG. 2, in which a pellicle membrane 1 is attached to one side of a pellicle frame 2, and an adhesive 4 is attached to the opposite side.

この接着剤4によってフォトマスク5に固定する様にな
っている。
This adhesive 4 is used to fix it to the photomask 5.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

従来の技術では、ペリクル膜1上の異物がデフォーカス
せず半導体基板上に転写される様になった場合、ペリク
ルの寿命が終了したとして再度利用することもなく、新
しいものと交換していた。
In conventional technology, if the foreign matter on the pellicle film 1 is not defocused and is transferred onto the semiconductor substrate, the pellicle is considered to have reached its lifespan and is not used again, but replaced with a new one. .

また、交換するときにはペリクル枠2が接着剤4によっ
てフォトマスク5に固定されているため、フォトマスク
にキズを付けないように慎重に時間をかけて剥ぎ取って
いた。
Furthermore, when replacing the pellicle frame 2, since the pellicle frame 2 is fixed to the photomask 5 with adhesive 4, it takes time to carefully peel it off so as not to damage the photomask.

そこで本発明は、この様な問題点を解決するもので、そ
の目的とするところは、ペリクル膜1上の異物がデフォ
ーカスして半導体基板上に転写されない様に、ペリクル
枠2の高さを容易に可変することが可能なペリクルが装
着されたフォトマスクを提供することにある。
The present invention is intended to solve these problems, and its purpose is to increase the height of the pellicle frame 2 so that the foreign matter on the pellicle film 1 is not defocused and transferred onto the semiconductor substrate. An object of the present invention is to provide a photomask equipped with a pellicle that can be easily changed.

〔課題を解決するための手段〕[Means to solve the problem]

本発明のフォトマスク5に装着されているペリクルは、
ペリクル膜1が張り付けであるペリクル枠2と、フォト
マスク5に接着剤4で固定されている固定枠6に分割で
き、その間にスペーサー7を挾み込むことができること
を特徴とする。
The pellicle attached to the photomask 5 of the present invention is
It is characterized in that it can be divided into a pellicle frame 2 to which a pellicle film 1 is attached and a fixed frame 6 fixed to a photomask 5 with an adhesive 4, and a spacer 7 can be inserted between them.

〔実施例〕〔Example〕

第1図は、本発吋の実施例における側面図である。 FIG. 1 is a side view of the second embodiment.

フォトマスク5に、最初のペリクルを張り付ける時には
、ペリクル枠2と固定枠5がすでに固定ネジ6によって
接続されている状態になっているこの固定枠5がペリク
ル枠2に接続されている反対側には、固定枠6とフォト
マスク5を接着するための接着剤4が付着している。
When attaching the first pellicle to the photomask 5, the pellicle frame 2 and the fixed frame 5 are already connected by the fixing screws 6.The fixed frame 5 is connected to the pellicle frame 2 on the opposite side. Adhesive 4 for bonding the fixed frame 6 and the photomask 5 is attached to.

接着剤4を用いてフォトマスク5と固定枠5及びペリク
ル枠2が固定ネジ6で接続されたものをフォトマスク5
のCrパターン8が付いている面に固定する。この時の
ペリクル膜1のCrパターン8からの高さは、ペリクル
枠2と固定枠5の高さに等しく約6M位である。
A photomask 5 is formed by connecting a photomask 5, a fixing frame 5, and a pellicle frame 2 with fixing screws 6 using an adhesive 4.
Fix it to the surface with the Cr pattern 8. At this time, the height of the pellicle film 1 from the Cr pattern 8 is approximately 6M, which is equal to the height of the pellicle frame 2 and the fixed frame 5.

上記の状態で、通常は使用する。Normally used in the above conditions.

フォトマスクを使用する前には、ペリクル膜1上に異物
が付着しているかどうか判定するためにレチクル・ペリ
クル面の異物検査装置で検査する検査で異物が付着して
いた場合、この付着した異物が、半導体基板上に転写し
ているかどうか判定するために、パターン欠陥検査装置
により検査する。
Before using the photomask, in order to determine whether or not foreign matter is attached to the pellicle film 1, if there is any foreign matter attached to the reticle/pellicle surface using a foreign matter inspection device, the attached foreign matter will be detected. In order to determine whether or not the pattern has been transferred onto the semiconductor substrate, a pattern defect inspection device is used to inspect it.

この結果、半導体基板上に転写しない場合は、このまま
露光を行なう。
As a result, if the image is not to be transferred onto the semiconductor substrate, exposure is performed as is.

しかし、転写する場合には、ペリクル枠2と固定枠6を
接続している固定ネジ6を取り外し、ペリクル枠2と固
定枠5の間に枠の高さが約2wn位のスペーサー7を挾
み込み、ペリクル枠と固定枠を接続していた時より、ス
ペーサー7の分だけ長い固定ネジ6を用いて、スペーサ
ー7とペリクル枠2を固定枠6の四隅に固定する。
However, when transferring, remove the fixing screw 6 that connects the pellicle frame 2 and fixed frame 6, and insert a spacer 7 between the pellicle frame 2 and fixed frame 5 with a frame height of about 2wn. The spacer 7 and the pellicle frame 2 are fixed to the four corners of the fixed frame 6 using fixing screws 6 that are longer by the spacer 7 than when the pellicle frame and the fixed frame were connected.

この後、もう−度、半導体基板上に転写するかどうか検
査し、ペリクル膜上の異物が、スペーサー7によって、
デフォーカスし、半導体基板上に転写することが無いこ
とを確認したのち、露光を行なう。
After this, it is inspected again to see if it is transferred onto the semiconductor substrate, and the spacer 7 removes any foreign particles on the pellicle film.
After defocusing and confirming that there is no transfer onto the semiconductor substrate, exposure is performed.

今回の実施例では、スペーサーの高さは、約2職位であ
ると記載したが、レチクルケース及び露光装置にペリク
ル枠が当ってしまう等の問題が発生することが無ければ
、2ran以上の高さを取ることは可能で有り、また、
高さが高(なる程、ペリクル膜1上の異物はデフォーカ
スし、半導体基板上に転写しに((なる。
In this example, the height of the spacer is described as approximately 2 degrees, but if there is no problem such as the pellicle frame hitting the reticle case or exposure device, the height of the spacer may be 2 degrees or more. It is possible to take, and also,
The height is high (I see, the foreign matter on the pellicle film 1 is defocused and transferred onto the semiconductor substrate (()).

〔発明の効果〕〔Effect of the invention〕

以上述べた様に、本発明によればペリクル膜1に付着し
た異物がデフォーカスせず半導体基板上に転写する様に
なったりペリクルであっても、ペリクル枠2と固定枠5
の間にスペーサー7を挾み込みペリクル枠2の高さを変
えることによって、ペリクル膜1面上の異物をデフォー
カスでき、ペリクルの再度の利用が行なえ非常に経済的
であるまた、ペリクル枠2と固定枠6が分割することが
できるため、ペリクルの交換も容易に行なうことができ
るという効果も有している。
As described above, according to the present invention, foreign matter attached to the pellicle film 1 is not defocused and is transferred onto the semiconductor substrate, and even if it is a pellicle, the pellicle frame 2 and fixed frame 5
By changing the height of the pellicle frame 2 by inserting a spacer 7 between them, foreign matter on the surface of the pellicle membrane 1 can be defocused, and the pellicle can be reused, which is very economical. Since the fixed frame 6 can be separated, it also has the effect that the pellicle can be easily replaced.

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

第1図は、本発明の実施例における側面図。 第2図は、従来技術の側面図。 1・・・・・・・・・ペリクル膜 2・・・・・・・・・ペリクル枠 3・・・・・・・・・固定枠 4・・・・・・・・・接着剤 5・・・・・・・・・フォトマスク 6・・・・・・・・・固定ネジ 7・・・・・・・・・スペ−V− 8・・・・・・・・・Orパターン 以上 出願人 セイコーエプソン株式会社 代理人 弁理士 鈴木喜三部(他1名)箋 図 第 1呂 FIG. 1 is a side view of an embodiment of the invention. FIG. 2 is a side view of the prior art. 1・・・・・・・・・Pellicle membrane 2・・・・・・・・・Pericle frame 3...Fixed frame 4・・・・・・・・・Adhesive 5・・・・・・・・・Photomask 6...Fixing screw 7・・・・・・・・・Space-V- 8・・・・・・・・・Or pattern that's all Applicant: Seiko Epson Corporation Agent: Patent attorney Kisanbe Suzuki (and 1 other person) figure No. 1 bath

Claims (1)

【特許請求の範囲】[Claims]  ペリクル枠が、ペリクル膜を張り付けて有る部分と、
フォトマスクに接着固定する部分とに分割し、その間に
スペーサーを入れることにより、ペリクル枠の高さが可
変となるペリクルが装着されたことを特徴とするフォト
マスク。
The part of the pellicle frame to which the pellicle membrane is attached,
A photomask equipped with a pellicle that is divided into a part that is adhesively fixed to the photomask and a spacer inserted between the parts, so that the height of the pellicle frame can be made variable.
JP2208935A 1990-08-07 1990-08-07 Photomask Pending JPH0493945A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2208935A JPH0493945A (en) 1990-08-07 1990-08-07 Photomask

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2208935A JPH0493945A (en) 1990-08-07 1990-08-07 Photomask

Publications (1)

Publication Number Publication Date
JPH0493945A true JPH0493945A (en) 1992-03-26

Family

ID=16564572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2208935A Pending JPH0493945A (en) 1990-08-07 1990-08-07 Photomask

Country Status (1)

Country Link
JP (1) JPH0493945A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7173689B2 (en) * 2003-06-18 2007-02-06 Asml Holding N.V. Method and system for a pellicle frame with heightened bonding surfaces
US20170184957A1 (en) * 2014-09-19 2017-06-29 Mitsui Chemicals, Inc. Pellicle, pellicle production method and exposure method using pellicle
US10488751B2 (en) 2014-09-19 2019-11-26 Mitsui Chemicals, Inc. Pellicle, production method thereof, exposure method
US10642151B2 (en) * 2014-11-04 2020-05-05 Nippon Light Metal Company, Ltd. Pellicle support frame and production method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7173689B2 (en) * 2003-06-18 2007-02-06 Asml Holding N.V. Method and system for a pellicle frame with heightened bonding surfaces
US7339653B2 (en) 2003-06-18 2008-03-04 Asml Holding N.V. System for a pellicle frame with heightened bonding surfaces
US20170184957A1 (en) * 2014-09-19 2017-06-29 Mitsui Chemicals, Inc. Pellicle, pellicle production method and exposure method using pellicle
US10488751B2 (en) 2014-09-19 2019-11-26 Mitsui Chemicals, Inc. Pellicle, production method thereof, exposure method
US10585348B2 (en) * 2014-09-19 2020-03-10 Mitsui Chemicals, Inc. Pellicle, pellicle production method and exposure method using pellicle
US10642151B2 (en) * 2014-11-04 2020-05-05 Nippon Light Metal Company, Ltd. Pellicle support frame and production method

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