JPH1128666A - Sand blast surface finishing method - Google Patents

Sand blast surface finishing method

Info

Publication number
JPH1128666A
JPH1128666A JP8954398A JP8954398A JPH1128666A JP H1128666 A JPH1128666 A JP H1128666A JP 8954398 A JP8954398 A JP 8954398A JP 8954398 A JP8954398 A JP 8954398A JP H1128666 A JPH1128666 A JP H1128666A
Authority
JP
Japan
Prior art keywords
component
treatment method
surface treatment
sandblasting
low
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.)
Granted
Application number
JP8954398A
Other languages
Japanese (ja)
Other versions
JP3024095B2 (en
Inventor
Iwao Sumimoya
岩夫 住母家
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.)
DENSHIYOU ENG KK
Original Assignee
DENSHIYOU ENG KK
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 DENSHIYOU ENG KK filed Critical DENSHIYOU ENG KK
Priority to JP10089543A priority Critical patent/JP3024095B2/en
Publication of JPH1128666A publication Critical patent/JPH1128666A/en
Application granted granted Critical
Publication of JP3024095B2 publication Critical patent/JP3024095B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Landscapes

  • Mechanical Treatment Of Semiconductor (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

PROBLEM TO BE SOLVED: To roughen the surface of titanium or stainless steel only by sand blasting so as to improve the adhesiveness by lowering the blast pressure, so that the surface of a subject part is subjected to blasting with solid abrasives with a large grain size with a large flow of air. SOLUTION: In the case of working the surface of a part in a chamber of a manufacturing device for a semiconductor or LCD, sand blasting is conducted at pressure lower than usual. At this time, in the case where the raw material 1 is titanium, stainless steel, aluminium or the like, with the final target of surface roughness ranging from approx. Rmax 75 μ to 120 μ, the blast pressure is set lower to approx. 1.5 kg of 0.5 kg, and blasting coating is conducted by using abrasives which is solid abrasives formed of silica carbide and has a large grain size of about #11. As a result, the surface roughness which is near the target value can be obtained, and as the sand blasting surface finishing 10, the projecting and recessed parts are very close as compared with those of an ordinary one, so that the adhesion effect can be improved remarkably.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は部品の表面に施されるブ
ラスト加工に関し、特に半導体等の製造装置チャンバー
内の部品から生ずるパーティクルの発生を少なくしたサ
ンドブラスチングによるサンドブラスト表面処理方法に
関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blasting process applied to a surface of a component, and more particularly to a method for treating a surface of a sand blast by sand blasting to reduce the generation of particles generated from the component in a chamber of a manufacturing apparatus such as a semiconductor. .

【0002】[0002]

【従来の技術】半導体製造装置やLCD製造装置では、
装置を稼働させると装置内のチャンバー内部品の表面に
成膜材が飛散して付着し、次第に堆積し、それが剥離し
て脱落し、装置のチャンバー内のパーティクル(塵の微
分子)の大きな原因となり、製造される半導体やLCD
に製品不良を引き起こす大きな原因となっている。成膜
材はチャンバー内の部品の表面に堆積し、温度変化等や
物理的な衝撃若しくは自己崩壊して剥離しパーティクル
となることが多い。製品の精度を担保し不良を回避する
為にも一定期間で製造装置の部品を交換する必要に迫ら
れている。使用済の装置部品は、新規の部品または再生
処理された部品と交換される。使用済の部品はリサイク
ルの為に再生される。再生に当たっては、成膜材の剥離
と再コーティング作業が必要とされる。再生処理に時間
を要すると、半導体等の製造装置の稼働率が悪くなる結
果となり、一方、装置の稼働率だけを考慮すると製品の
歩留が悪くなる結果となる。従って、長期の使用に耐え
る表面処理が要求されていると同時に、稼働中に剥離し
てパーティクル(塵の微分子)を生じない表面処理であ
りかつ、部品の短期での再生が可能な処理方法の実現が
要望されていた。
2. Description of the Related Art In semiconductor manufacturing equipment and LCD manufacturing equipment,
When the apparatus is operated, the film-forming material is scattered and adheres to the surfaces of the components in the chamber in the apparatus, gradually accumulates, peels off and falls off, and large particles (fine particles of dust) in the chamber of the apparatus. Semiconductors and LCDs that cause and are manufactured
This is a major cause of product failure. The film-forming material is deposited on the surface of the component in the chamber, and often peels off due to a temperature change or the like, a physical impact, or self-destruction to become particles. In order to ensure the accuracy of the product and avoid defects, it is necessary to replace parts of the manufacturing apparatus in a certain period. Used equipment parts are replaced with new parts or parts that have been reprocessed. Used parts are recycled for recycling. In the case of the regeneration, peeling of the film-forming material and re-coating are required. If the time required for the regenerating process is long, the operation rate of the manufacturing apparatus such as a semiconductor is deteriorated. On the other hand, considering only the operation rate of the apparatus, the product yield is deteriorated. Therefore, a surface treatment that can withstand long-term use is required, and at the same time, a surface treatment that does not peel off during operation to generate particles (fine particles of dust) and that can regenerate parts in a short time. The realization of has been desired.

【0003】成膜材が剥離して脱落し、装置のチャンバ
ー内にパーティクル(塵の微分子)を発生させる原因を
除去する方策としては、まず(イ)装置の稼働の初めに
空運転をしてチャンバー内の部品の表面に成膜材を付着
させてパーティクル(塵の微分子)を予め抑えること
(ロ)チャンバー内の部品を有機溶剤で払拭するか、純
水や超音波で精密洗浄して表面に付着するパーティクル
の原因を取り除く。(ハ)部品の表面を加工して粗くし
て表面積を大きくして密着性を増し、堆積した成膜材が
熱衝撃やその他の物理的衝撃によって剥離する可能性を
より少なくする方法、(ニ)部品の上に堆積した成膜材
が剥離し難いように加工を施した防着板(銅製)を部品
の上に溶接により溶着する方法や(ホ)成膜材との密着
性を増す方法として、図3aで示すように部品の表面に
表面積が大きくなる効果を出す物質(アルミナが多く使
用されている)を溶射する方法がある。
[0003] As a measure for removing the cause of peeling and falling off of the film-forming material and generating particles (fine particles of dust) in the chamber of the apparatus, first, (a) idle operation is performed at the beginning of the operation of the apparatus. Prevent particles (fine particles of dust) by depositing a film-forming material on the surface of the components in the chamber. (B) Wipe the components in the chamber with an organic solvent or perform precision cleaning with pure water or ultrasonic waves. To remove the cause of particles adhering to the surface. (C) a method of processing and roughening the surface of the component to increase the surface area and increase the adhesion, thereby reducing the possibility of the deposited film material being peeled off by thermal shock or other physical shock; ) A method of welding an adhesion-preventing plate (made of copper) that has been processed so that the deposited material deposited on the component is difficult to peel off, and a method of (e) increasing the adhesion with the deposited material. As shown in FIG. 3A, there is a method of spraying a substance (alumina is often used) that has an effect of increasing the surface area on the surface of the component.

【0004】図3bは上記(ニ)の方法で、予め表面加
工した銅製の防着板(PG板)を部品の表面に溶接して
成膜材との密着性を増す方法である。図3bで示す防着
板(例えばジャパンエナジー社のパーティクル・ゲッタ
ーノ "PG板" 登録商標)は、表面の粗い、又は、ポー
ラス状に加工した銅製であり、部品の上に溶接する為、
表面を直接加工するサンドブラスト加工品より優れた結
着効果を生む。防着板(PG板)は銅製であるので、膨
張係数はアルミよりかなり低く、高融点物質とも馴染む
利点がある。しかしながら、防着板は高価な上に、スポ
ット溶接作業が必要であるのでコストがかかる上に、剥
離作業をして再生する際に部品を劣化させる欠点があっ
た。一方、溶射する方法では、アルミナ溶射が使用され
ているが、ポーラスである為、熱変化を吸収するので低
膨張である高融点物質にも耐える点では利点があるが、
これも再生利用する際、剥離作業により部品を劣化させ
る点があり、またコスト高でもある。そこで、リサイク
ル(再生)に当たって溶射部分の剥離や防着板の剥離に
よる部品の表面の損傷の少ない加工方法が待望されてい
た。
FIG. 3B shows a method of increasing the adhesion to a film-forming material by welding a copper adhesion preventing plate (PG plate), which has been surface-treated in advance, to the surface of a component in the above method (d). The anti-adhesion plate shown in FIG. 3b (for example, Particle Getter "PG plate" (registered trademark) of Japan Energy Co., Ltd.) is made of copper having a rough surface or processed into a porous shape.
Produces a better binding effect than sandblasted products that directly process the surface. Since the adhesion-preventing plate (PG plate) is made of copper, the expansion coefficient is considerably lower than that of aluminum, and there is an advantage that it is compatible with high melting point materials. However, the deposition-preventing plate is expensive, and requires spot welding work, which is costly, and has the drawback of deteriorating parts when the work is peeled off and recycled. On the other hand, in the method of thermal spraying, alumina thermal spraying is used, but since it is porous, it has an advantage in that it absorbs a heat change and can withstand a high-melting substance with low expansion,
This also has the point of deteriorating parts due to the peeling operation when recycled, and is also costly. Therefore, in recycling (reproduction), there has been a long-awaited demand for a processing method in which damage to the surface of the component due to peeling of the sprayed portion or peeling of the anti-adhesion plate is small.

【0005】付着する成膜材と部品表面との密着性を上
げるには、部品の表面積をより大きくする事が必要とな
る。一方部品の形状(外形の幅)は限定されているの
で、限定された幅(面積)の中で表面積だけを大きくす
る方法が必要となり、表面に凸凹を付ける方法が考えら
れている。しかしながら従来のサンドブラスト工法で表
面に凸凹処理を施した場合、部品に変形が発生する事
と、部品の材質としてアルミからSUS、SUSから
チタンというように硬いものが選択使用されるようにな
った為、粗さの大きさには限界があった。従って、より
密着性の高い溶射や特殊加工の銅製の防着板またはPG
板が高価ではあるが現実には多く使用されていた。
In order to increase the adhesion between the film-forming material to be adhered and the surface of the component, it is necessary to increase the surface area of the component. On the other hand, since the shape (the width of the outer shape) of the component is limited, a method of increasing only the surface area within the limited width (area) is required, and a method of forming irregularities on the surface has been considered. However, when the surface is roughened by the conventional sandblasting method, the parts are deformed, and as the material of the parts, hard materials such as aluminum, SUS, and SUS, titanium are used. However, there was a limit to the magnitude of roughness. Therefore, a copper adhesion plate or PG with higher adhesion or special processing
Although the board was expensive, it was often used in practice.

【0006】の場合、加工側の面がその裏面より面積
が大きくなる為に図2aのように変形することになるの
で、これを矯正する為に、従来は、裏面にもサンドブラ
スト加工を施して対処していた。これによれば変形はあ
る程度矯正されるが、図2bで示すように複雑な局面を
形成する結果となっていた。部品の厚さや材質にもよる
が、特別な場合(20m/m 程度の厚い部品にSiC#2
4程度の粗い研掃材を7kgの高圧で吹きつけた場合、ア
ルミで100μ、SUSで60μのRmaxが得られ
る)を除いてRmax 40μ程度の表面粗度が限度と
思われる。
In the case of FIG. 2, since the surface on the processing side has an area larger than that of the rear surface, it is deformed as shown in FIG. 2A. To correct this, conventionally, the back surface is also subjected to sandblasting. Was dealing. According to this, the deformation is corrected to some extent, but as a result, a complicated aspect is formed as shown in FIG. 2B. Although it depends on the thickness and material of the parts, special cases (SiC # 2 for thick parts of about 20m / m)
When a rough abrasive material of about 4 is sprayed at a high pressure of 7 kg, a surface roughness of about 40 μm of Rmax is considered to be the limit, except for Rmax of 100 μm for aluminum and 60 μm for SUS.

【0007】部品材質の硬度による限界 現在、チャンバーの内装部品の材質としてはアルミ、S
US、チタン等が多く用いられている。各々硬度が違う
為、同条件(例えば、条件:6kg圧、SiC#100)
でサンドブラスト加工した場合、(a)アルミ(Al #10
0-6K) でRmax24.2μm、(b)SUS (SUS #1
00-6K)でRmax16.4μm、(c)チタン (Ti #10
0-6K) でRmax13.8μmのように計測結果に差異
が生じている。アルミの厚めの部品(20m/m 程度以
上)のものなら現行の方法でもRmax100μ程度の
表面粗度になり溶射や防着板(PG板)に匹敵するがS
US、チタンになると同様の条件で加工してもRmax
60μ前後の粗度であり、その密着性は高融点、高密度
で低熱膨張率の成膜材には対応できない。又、アルミの
場合、面粗度は溶射のそれと匹敵するが熱膨張率が高い
為、熱膨張率の低いCr,W,Mo,Ta等の成膜材に
は不向きである。
Limits due to hardness of component materials At present, aluminum, S
US, titanium, and the like are often used. Since the hardness is different, the same conditions (for example, conditions: 6 kg pressure, SiC # 100)
(A) Aluminum (Al # 10
0-6K), Rmax 24.2μm, (b) SUS (SUS # 1
Rmax 16.4 μm, (c) titanium (Ti # 10
0-6K), there is a difference in the measurement result as in Rmax 13.8 μm. For aluminum thick parts (about 20 m / m or more), even with the current method, the surface roughness of Rmax is about 100 μ, which is comparable to thermal spraying or a deposition prevention plate (PG plate).
Rmax for US and titanium even if processed under the same conditions
It has a roughness of about 60 μm, and its adhesion is not compatible with a film-forming material having a high melting point, a high density and a low coefficient of thermal expansion. In the case of aluminum, the surface roughness is comparable to that of thermal spraying, but the coefficient of thermal expansion is high, so it is not suitable for a film forming material such as Cr, W, Mo, Ta having a low coefficient of thermal expansion.

【0008】溶射や特殊加工銅製防着板(PG板)はサ
ンドブラスト加工より密着性が良く、単位当たりの表面
積を大きくする事ができる。図3aで示す通り溶射の場
合は、部品の上に溶射剤の粒を吹きつける為その粒度を
調整する事によりサンドブラスト加工より表面を粗くし
て表面積を大きくすることが出来る。防着板(PG板)
の場合は、図3bで示す通り部品の上に表面を粗くポー
ラス状にした銅製の板を溶接により接合するので密着性
を増すことができる。また、熱膨張率も比較的低く、高
融点、高密度、低膨張率の成膜材に適用されるが、いづ
れも欠点としては再生利用の際に部品を劣化させるおそ
れがあるとともに高価であった。
[0008] Thermal spraying or specially processed copper deposition plates (PG plates) have better adhesion than sandblasting and can increase the surface area per unit. As shown in FIG. 3a, in the case of thermal spraying, the surface of the component can be roughened by sandblasting to increase the surface area by adjusting the particle size in order to spray the particles of the thermal spraying agent onto the component. Deposition plate (PG plate)
In the case of (1), as shown in FIG. 3B, a copper plate having a rough surface and a porous shape is joined to the component by welding, so that the adhesion can be increased. In addition, it has a relatively low coefficient of thermal expansion and is applied to a film-forming material having a high melting point, high density, and a low coefficient of expansion. Was.

【0009】[0009]

【発明が解決しようとする課題】本発明の目的はサンド
ブラスト表面加工方法であって、サンドブラスト加工だ
けで高融点、高密度、低膨張用の部品材質として多く用
いられるチタンやSUSの表面を粗く密着性をより大き
くすることの出来るサンドブラスト表面処理方法を提供
することにある。
SUMMARY OF THE INVENTION An object of the present invention is a method for surface blasting of a sand blast, and the surface of titanium or SUS, which is often used as a component material for high melting point, high density, and low expansion, is roughly adhered only by sand blasting. It is an object of the present invention to provide a sand blasting surface treatment method capable of increasing the performance.

【0010】[0010]

【問題点を解決するための手段】上記の目的を達成する
ために、この発明に係るサンドブラスト表面処方法は、
半導体又はLCDの製造装置のチャンバー内部品の表面
加工処理方法で、装置チャンバー内のパーティクルの発
生源であるチャンバー内部品表面に付着した成膜材の剥
離脱落を抑える為に、ブラスト圧を低圧にして大流量の
空気流で、大粒度の固い研削材を用いて、対象部品表面
を噴射処理する構成である。本発明のサンドブラスト表
面処理方法はSUS製、チタン製、アルミ製またはモリ
ブデン製等の素材からなる部品の表面をRmax 75μ〜
Rmax 120μ程度の粗に形成するために、ブラスト圧
が低圧の1.5Kg〜0.5Kg程度であり、空気流が
通常以上の、高速、大流量であり、固い研削材がSiC
(炭化ケイ素)であり、研削材の粒度が#11前後程度
に設定されている。また、本発明にかかる別の実施例で
あるサンドブラスト表面処理方法はSUS製やチタン製
及びその他の素材からなる部品の表面を、Rmax 40μ
〜75μ程度の粗に形成するために、ブラスト圧が低圧
の1.5Kg〜0.5Kg程度であり、空気流が通常以
上の高速、大流量であり、固い研削材がSiC(炭化ケ
イ素)であり、該研削材の粒度が#20程度に設定され
ている。
SUMMARY OF THE INVENTION In order to achieve the above object, a sandblasting surface treatment method according to the present invention comprises:
In the surface treatment method for the components in the chamber of the semiconductor or LCD manufacturing equipment, the blast pressure is reduced to prevent the film material attached to the surface of the components in the chamber, which is the source of particles in the equipment chamber, from peeling off. In this configuration, the surface of the target component is sprayed using a large-sized hard abrasive with a large air flow. The sand blasting surface treatment method of the present invention applies a surface made of a material such as SUS, titanium, aluminum, or molybdenum to a surface having a Rmax of 75 μm or more.
The blast pressure is low, about 1.5 kg-0.5 kg, the air flow is higher than normal, the flow rate is high, the flow rate is higher than usual, and the hard abrasive is SiC.
(Silicon carbide), and the particle size of the abrasive is set to about # 11. Further, a sand blasting surface treatment method according to another embodiment of the present invention uses a SUS, titanium, or other material made of a material made of Rmax 40 μm.
The blast pressure is low, about 1.5 kg to about 0.5 kg, the air flow is higher than usual and the flow rate is large, and the hard abrasive is SiC (silicon carbide). Yes, the particle size of the abrasive is set to about # 20.

【0011】また、サンドブラスト表面処理方法を施す
対象成膜材はMo、W、MoSi2、WSi2 、Ta、
Cr、等の熱膨張係数が低く、比較的高融点で高密度の
成膜材、又はアルミ等の熱膨張係数が高く比較的低融点
で低密度の成膜材の堆積を厚くできる構成である。ま
た、噴射処理は、低圧、大流量のエアーを噴射すること
により部品の表面の変形を抑えることと、表面の凸凹の
密度を従来よりもずっと高く密にして密着性を向上させ
たものである。さらに表面噴射処理の施された部品の表
面に食い込んで残存する炭化ケイ素や表面突起部の尖端
が欠損脱落して発生するパーティクルを除去するスクラ
ブを主にした強化精密洗浄を施すことも可能である。
[0011] The target film-forming material to be subjected to the sandblast surface treatment method is Mo, W, MoSi 2 , WSi 2 , Ta,
This is a structure that can be deposited with a relatively high melting point and high density film-forming material such as Cr, etc. and a relatively high melting point and a relatively low melting point and low density film-forming material such as aluminum etc. . In addition, the spraying process is to suppress the deformation of the surface of the component by injecting air at a low pressure and a large flow rate, and to improve the adhesion by making the density of the unevenness of the surface much higher than in the past. . Further, it is also possible to perform an enhanced precision cleaning mainly using a scrub that removes particles generated due to silicon carbide remaining on the surface of the component subjected to the surface jetting treatment and the tip of the surface projection being lost and falling off. .

【0012】[0012]

【作 用】本発明にかかるサンドブラスト表面処理方法
は、上記詳述したような構成であるので、半導体または
LCDの製造装置のチャンバー内部品の表面を加工処理
する場合、通常より低い圧でサンドブラスチング加工を
施す。この際に、最終的に表面の粗度をRmax75μ
〜120μ程度にすることを目標とする場合には、ブラ
スト圧を低圧の1.5Kg〜0.5Kg程度に設定し、
空気流が通常以上の大流量で、SiC(炭化ケイ素)か
らなる固い研削材で粒の径が大きい粒度#11程度の研
削材を使用して噴射コーティング加工を施した。その結
果目標となる程度の面粗度を得ることができた。また、
サンドブラスト表面処理としては、通常品と比較して凸
凹が極めて密であるため密着効果を大幅に向上させるこ
とができた。また、硬い研削材であるがゆえに部品に食
い込み、装置稼働時に食い込んだ研削材が脱落する虞が
あること、また部品表面の突起部の尖端が脱落してパー
ティクルとなること、等の問題を解決する為にスクラブ
を主にした強化精密洗浄を施す。
The sand blasting surface treatment method according to the present invention has the above-described structure, and therefore, when processing the surface of a component in a chamber of a semiconductor or LCD manufacturing apparatus, sand blasting is performed at a lower pressure than usual. Apply processing. At this time, the surface roughness is finally set to Rmax75μ.
When the target is about 120 μm, the blast pressure is set to a low pressure of about 1.5 kg to about 0.5 kg,
The spray coating was performed by using a hard abrasive made of SiC (silicon carbide) having a large air flow at a flow rate higher than usual and having a particle diameter of about # 11. As a result, a target surface roughness could be obtained. Also,
As for the sandblast surface treatment, the unevenness was extremely dense as compared with the normal product, so that the adhesion effect could be greatly improved. In addition, it is possible to solve problems such as the fact that the hard abrasive material cuts into the part due to the hard abrasive material, and that the abrasive material that digs in during the operation of the device may fall off. In order to do it, we give a strong precision cleaning mainly using scrub.

【0013】[0013]

【実施例】以下、本発明に係るサンドブラスト表面処理
方法を実施例に基づいて詳細に説明する。この発明にか
かるサンドブラスト表面処理10は、大粒度(粒子の径
が大きいもの)で材質が固い研削材を用いて、低圧のブ
ラスト圧で、大流量の空気流で対象部品の表面を処理し
ている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The sand blasting surface treatment method according to the present invention will be described below in detail based on embodiments. The sand blasting surface treatment 10 according to the present invention uses a hard abrasive having a large particle size (a particle having a large particle size) and a low-blasting pressure to treat the surface of a target component with a large flow of air. I have.

【0014】さらに詳細には、本発明のサンドブラスト
表面処理が施される半導体製造装置のチャンバー内の部
品はアルミ製またはSUS製やチタン製やモリブデン製
等の素材からなるものであり、その表面の面粗度をRm
ax75μ〜120μ程度以上の粗に形成する。この為
に、本発明の処理方法では従来の装置と異なり、ブラス
ト圧を1.5Kg〜0.5Kg程度の低圧として、空気
流を通常以上の大流量に設定している。ただし、研削材
としては硬度の高い固い研削材を使用している。この実
施例では研削材としてSiC(炭化ケイ素)の粒度#1
1が使用されている。粒径は比較的大きくかつ硬度の高
い研削材が使用されているのが特徴であり、従来の処理
装置との大きな違いである。また、対象となる成膜材
は、Mo、W、MoSi2 、WSi2 、Ta、Cr、等
の熱膨張係数が低く、比較的高融点で高密度の成膜材を
対象としている。
More specifically, the components in the chamber of the semiconductor manufacturing apparatus subjected to the sandblasting surface treatment of the present invention are made of a material made of aluminum, SUS, titanium, molybdenum, or the like. Surface roughness Rm
ax is roughly formed with a thickness of about 75 μ to 120 μ or more. For this reason, in the processing method of the present invention, unlike the conventional apparatus, the blast pressure is set to a low pressure of about 1.5 kg to 0.5 kg, and the air flow is set to a flow rate larger than usual. However, a hard abrasive having high hardness is used as the abrasive. In this embodiment, a grain size # 1 of SiC (silicon carbide) is used as an abrasive.
1 is used. The feature is that abrasives having a relatively large particle size and high hardness are used, which is a great difference from the conventional processing apparatus. The target film forming material is a film forming material having a low coefficient of thermal expansion such as Mo, W, MoSi 2 , WSi 2 , Ta, Cr, etc., having a relatively high melting point and a high density.

【0015】A)変形をより少なくし表面積をより大き
くする技術 図2で説明した通り、サンドブラスト加工とグラインダ
ー加工とを比較すると、図4a,図4bで示した通り、
横方向のモーメントを小さくして下方向のモーメントを
大きくすることがポイントとなる。従って、ぶつけて表
面を粗くするよりは引っ掻いて粗くする方が部品の変形
が少なく抑えられる。そこで、サンドブラスト加工だけ
で「引っ掻き効果」を持たせるような加工方法の条件が
模索された。この発明の実施例ではブラスト圧を低圧と
して大流量の空気流で固い大きな粒度の研削材で行って
いる。図に示す実施例では、ブラスト圧を低圧の1.5
Kg〜0.5Kg位に設定しており、大流量の空気流を
通常以上に設定し、研削材としてSiCを使用し、粒度
の#11程度のものが選択された。これにより、SUS
製やチタン製やアルミ製またはモリブデン製等の素材か
らなるの部品の表面をRmax75μ〜120μ程度以
上の粗に形成することにより、溶射や特殊加工銅製防着
板(PG板)と並ぶ効果があり、低コストとなった。
A) Technique for reducing deformation and increasing surface area As described with reference to FIG. 2, when sand blasting and grinder processing are compared, as shown in FIGS. 4a and 4b,
The point is to reduce the lateral moment and increase the downward moment. Therefore, it is possible to suppress the deformation of the component less when the surface is roughened by scratching than when the surface is roughened by bumping. Then, the condition of the processing method which gives a "scratch effect" only by sandblasting was sought. In the embodiment of the present invention, the blast pressure is set to a low pressure, and a large flow of air is used to carry out hard abrasive particles of a large size. In the embodiment shown in the figure, the blast pressure is set to a low pressure of 1.5.
Kg to about 0.5 Kg, a large flow of air was set above normal, SiC was used as a grinding material, and a particle size of about # 11 was selected. With this, SUS
By forming the surface of a component made of titanium, aluminum, molybdenum, or the like with a roughness of about Rmax 75μ to 120μ or more, it has an effect similar to that of thermal spraying or specially processed copper deposition plate (PG plate). , Low cost.

【0016】B)バインダー効果と面積をより大きくす
る技術 部品表面に付着した成膜材が脱落すると、パーティクル
の原因になり、チャンバー内に悪影響を及ぼす。そこ
で、付着した成膜材を脱落させない方法が色々講じられ
てきた。部品と成膜材との接着面積が大きければ大きい
ほど密着性は増す。つまり部品正面に凸凹を付ければ単
位面積当たりの表面積は大きくなり密着性は向上する。
同じ振幅の深さであれば、図5の(a)と(b)の違い
のように凸凹の密度が大きい方が表面積が増し密着性も
向上する。硬い研削材に加えて、低圧、大流量のエア−
を使用する事により、部品表面に高密度の深い凸凹を造
ることが可能になった。
B) Binder Effect and Technique for Enlarging Area If the film-forming material attached to the surface of the component falls off, it causes particles and adversely affects the inside of the chamber. Therefore, various methods for preventing the attached film-forming material from dropping have been taken. The larger the bonding area between the component and the film-forming material, the higher the adhesion. In other words, if irregularities are formed on the front of the component, the surface area per unit area is increased, and the adhesion is improved.
If the depth is the same, the larger the density of the irregularities, as in the difference between (a) and (b) of FIG. 5, the surface area increases and the adhesion improves. In addition to hard abrasives, low pressure, large flow air
By using, it became possible to create high-density deep irregularities on the surface of the component.

【0017】サンドブラスト表面処理方法の(1)通常
処理はAl(アルミニウム)、Mg(マグネシウム)、
MgF(フッ化マグネシウム)、ITO(インジウム・
ティン・オキサイド)等を対象成膜材としており、適合
する母材の材質としてはAl(アルミニウム)やSUS
304、SUS316等を対象としている。 サンドブラスト表面処理方法(2)特殊処理は前述のサ
ンドブラスト表面処理方法を長時間運転するか、若しく
は後述の強化特殊処理を施すもので、適合する母材の材
質としてはAl(アルミニウム)やチタン、SUS30
4、SUS316、SUS631等を対象としている。 サンドブラスト表面処理方法(3)強化特殊処理は、比
較的高融点である場合や、高密度の成膜材の場合、熱膨
張係数が低めの場合に使用され、Mo,W,MoS
2 ,WSi2 ,Ta,Cr等を対象成膜材としてお
り、適合する母材の材質としてはチタンやSUS31
6、SUS631等を対象としている。
In the sandblasting surface treatment method (1), the usual treatment is Al (aluminum), Mg (magnesium),
MgF (magnesium fluoride), ITO (indium
Tin oxide, etc. are used as the target film forming material, and the suitable base material is Al (aluminum) or SUS
304, SUS316, etc. Sand blasting surface treatment method (2) The special treatment is one in which the above-mentioned sand blasting surface treatment method is operated for a long time, or a strengthening special treatment described below is performed. Suitable base materials are Al (aluminum), titanium, and SUS30.
4, SUS316, SUS631, etc. Sandblast surface treatment method (3) The special strengthening treatment is used when the melting point is relatively high, when the film is formed at a high density, or when the coefficient of thermal expansion is relatively low.
i 2 , WSi 2 , Ta, Cr, etc. are used as the target film forming materials, and the suitable base material is titanium or SUS31.
6, SUS631, etc.

【0018】[0018]

【発明の効果】この発明に係るサンドブラスト表面処理
方法は、上記詳述したような構成であるので、以下のよ
うな効果を有する。 (1) サンドブラスチングと強化精密洗浄だけで、溶射や
スポット溶接の必要な銅製防着板(PG板)と同様に、
付着成膜材の剥離脱落を抑えることが出来る。また、部
品の磨耗や変形も少なく、損傷や劣化も抑えられるので
低コストで部品の使用耐用寿命を長くする効果が得られ
る。また工程数が少なくなるので、再生にかかる時間が
短縮され、納期が短縮される効果がある他に、付着成膜
材の剥離作業も簡単で予備パーツも少なくて済みかつ、
部品の母材の劣化を防ぐことができる利点がある。 (2) この設定では、SUS製やチタン製やアルミ製また
はモリブデン製等の素材からなるの部品の表面をRma
x75μ〜120μ程度の粗に形成しているので、予定
以上の耐用期間も実現出来るので、低コストでありなが
ら溶射や防着板(PG板)と遜色のない効果を奏するこ
とができた。 (3) サンドブラスト表面処理方法を施す対象成膜材は、
Mo、W、MoSi2 、WSi2 、Ta、Cr、等の熱
膨張係数が低く、比較的高融点で高密度の成膜材であ
り、従前の溶射や,防着板(PG板)を溶接した場合と
ローコストで遜色のない結果が得られた。 (4) サンドブラスト表面処理は、研削材に炭化ケイ素を
使用することと、低圧、大流量のエアーにより凸凹が密
になり密着性を向上させることが可能になった。 (5) 噴射処理に下方向のベクトルを大きくする効果があ
るので、変形を抑えることができる。 (6) さらに、強化精密洗浄する事により部品の表面に食
い込んで残存する炭化ケイ素や、突起部尖端が欠けて発
生するパーティクルを取り除く事が可能になるため、製
品の精度を上げることが出来る。
The sand blasting surface treatment method according to the present invention has the following effects because it has the above-described configuration. (1) Just by sand blasting and reinforced precision cleaning, just like a copper deposition plate (PG plate) that requires thermal spraying and spot welding,
It is possible to suppress the detachment of the adhered film forming material. Further, the wear and deformation of the component are small, and the damage and the deterioration are suppressed, so that the effect of extending the service life of the component at low cost can be obtained. In addition, since the number of processes is reduced, the time required for regeneration is shortened, and the delivery time is shortened.
There is an advantage that deterioration of the base material of the component can be prevented. (2) In this setting, the surface of a part made of a material such as SUS, titanium, aluminum, or molybdenum
Since the film is roughly formed with a thickness of about 75 μm to 120 μm, a longer service life than expected can be realized, and an effect comparable to that of thermal spraying or an anti-adhesion plate (PG plate) can be achieved at low cost. (3) The target film material to be subjected to the sandblast surface treatment method is as follows:
Mo, W, MoSi 2 , WSi 2 , Ta, Cr, etc., have a low coefficient of thermal expansion, are relatively high melting points and are high density film-forming materials, and can be used for conventional thermal spraying and welding of adhesion-prevention plates (PG plates) The results were as low and low in cost. (4) The sandblast surface treatment uses silicon carbide as a grinding material, and the low pressure and large flow rate of air make the irregularities denser and improve the adhesion. (5) Since the injection processing has the effect of increasing the downward vector, deformation can be suppressed. (6) Further, by performing the enhanced precision cleaning, it is possible to remove silicon carbide remaining on the surface of the component and particles generated due to chipping of the protruding portion, thereby improving the accuracy of the product.

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

【図1】本発明のサンドブラスト表面処理方法を示す断
面図
FIG. 1 is a sectional view showing a sandblasting surface treatment method of the present invention.

【図2】従来のサンドブラスト表面処理を示す断面図FIG. 2 is a cross-sectional view showing a conventional sandblasting surface treatment.

【図3】従来の溶射工法と防着板(PG板)溶着工法を
示す断面図
FIG. 3 is a cross-sectional view showing a conventional thermal spraying method and a deposition-preventing plate (PG plate) welding method.

【図4】SUSをサンドブラスト加工した場合とグライ
ンダ加工した場合の比較断面図
FIG. 4 is a cross-sectional view of a case where SUS is subjected to sandblasting and a case where SUS is subjected to grinding.

【図5】(a)(b)同じ振幅の深さにおける凸凹の密
度の差による表面積の差を示す断面図
5A and 5B are cross-sectional views showing a difference in surface area due to a difference in density of unevenness at the same amplitude depth.

【符号の説明】[Explanation of symbols]

1 母材 10 サンドブラスト表面処理 12 従来のサンドブラスト処理 20 両面サンドブラスト処理 30 溶射 40 防着板(PG板) 42 スポット溶接 DESCRIPTION OF SYMBOLS 1 Base material 10 Sand blast surface treatment 12 Conventional sand blast treatment 20 Double-side sand blast treatment 30 Thermal spraying 40 Prevention plate (PG plate) 42 Spot welding

Claims (6)

【特許請求の範囲】[Claims] 【請求項1】半導体又はLCDの製造装置のチャンバー
内部品の表面加工処理方法であって、装置チャンバー内
のパーティクルの発生源であるチャンバー内部品表面に
付着した成膜材の剥離脱落を抑える為に、ブラスト圧を
低圧にして大流量の空気流で、大粒度の固い研削材を用
いて、対象部品表面を噴射処理することを特徴とするサ
ンドブラスト表面処理方法
1. A method of processing a surface of a component in a chamber of a semiconductor or LCD manufacturing apparatus, wherein the film forming material attached to the surface of the component in the chamber, which is a source of particles in the apparatus chamber, is prevented from peeling off. A sand blasting surface treatment method comprising subjecting the surface of a target component to jetting using a large-grained hard abrasive with a large air flow at a low blast pressure.
【請求項2】前記サンドブラスト表面処理方法はSUS
製、チタン製、アルミ製またはモリブデン製等の素材か
らなる部品の表面を、Rmax 75μ〜Rmax 120μ程
度の粗に形成するために、ブラスト圧が低圧の1.5K
g〜0.5Kg程度であり、空気流が通常以上の、高
速、大流量であり、固い研削材がSiC(炭化ケイ素)
であり、該研削材の粒度が#11 程度であることを特徴
とするサンドブラスト表面処理方法
2. The method according to claim 2, wherein said sandblasting surface treatment method is SUS.
To make the surface of a component made of a material such as titanium, aluminum, molybdenum, or the like rough with a Rmax of 75μ to Rmax 120μ, a blast pressure of 1.5K
g to about 0.5 kg, air flow is higher than normal, high speed, large flow rate, and hard abrasive is SiC (silicon carbide)
Wherein the particle size of the abrasive is about # 11.
【請求項3】前記サンドブラスト表面処理方法はSUS
製やチタン製及びその他の素材からなる部品の表面を、
Rmax 40μ〜75μ程度の粗に形成するために、ブラ
スト圧が低圧の1.5Kg〜0.5Kg程度であり、空
気流が通常以上の高速、大流量であり、固い研削材がS
iC(炭化ケイ素)であり、該研削材の粒度が#20程
度であることを特徴とするサンドブラスト表面処理方法
3. The sandblasting surface treatment method is SUS.
Parts made of titanium, titanium and other materials,
Rmax In order to form coarsely about 40μ to 75μ, the blast pressure is low, about 1.5Kg to 0.5Kg, the air flow is higher than usual, the flow rate is large, and the hard abrasive is S
A sandblasting surface treatment method, which is iC (silicon carbide) and the particle size of the abrasive is about # 20.
【請求項4】前記サンドブラスト表面処理方法を施す対
象成膜材はMo、W、MoSi2 、WSi2 、Ta、C
r、等の熱膨張係数が低く比較的高融点で高密度の成膜
材または、アルミ等の熱膨張係数が高く比較的低融点で
低密度の成膜材の堆積を厚くできることを特徴とする請
求項1記載のサンドブラスト表面処理方法
4. The film-forming material to be subjected to the sandblasting surface treatment method is Mo, W, MoSi 2 , WSi 2 , Ta, C
It is characterized in that the deposition of a film material having a low thermal expansion coefficient such as r and a relatively high melting point and a high density or a film material having a high thermal expansion coefficient such as aluminum and a relatively low melting point and a low density can be thickened. The sandblasting surface treatment method according to claim 1.
【請求項5】前記表面の噴射処理は、低圧、大流量のエ
アーを噴射することにより部品の表面の変形を抑えるこ
とと、表面の凸凹の密度を高くして密着性を向上させる
ことを特徴とする請求項1記載のサンドブラスト表面処
理方
5. The surface spraying process is characterized by suppressing the deformation of the surface of the component by injecting air at a low pressure and a large flow rate, and improving the adhesion by increasing the density of the surface irregularities. The sandblasting surface treatment method according to claim 1,
【請求項6】前記表面噴射処理の施された部品の表面に
食い込んで残存する炭化ケイ素や表面突起部の先端が脱
落して発生するパーティクルを除去するスクラブを主に
した強化精密洗浄を施すことを特徴とする請求項1記載
のサンドブラスト表面処理方法
6. An enhanced precision cleaning mainly using a scrub for removing silicon carbide remaining on the surface of the component subjected to the surface jetting treatment and particles generated by the tip of a surface projection falling off. The sand blasting surface treatment method according to claim 1, wherein
JP10089543A 1997-05-13 1998-03-19 Sandblasting surface treatment method Expired - Fee Related JP3024095B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10089543A JP3024095B2 (en) 1997-05-13 1998-03-19 Sandblasting surface treatment method

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP9-137433 1997-05-13
JP13743397 1997-05-13
JP10089543A JP3024095B2 (en) 1997-05-13 1998-03-19 Sandblasting surface treatment method

Publications (2)

Publication Number Publication Date
JPH1128666A true JPH1128666A (en) 1999-02-02
JP3024095B2 JP3024095B2 (en) 2000-03-21

Family

ID=26430960

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP3024095B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007180094A (en) * 2005-12-27 2007-07-12 Densho Engineering Co Ltd Chuck plate
EP1962075A3 (en) * 2007-02-23 2010-12-01 Silicon Micro Sensors GmbH Pressure sensor connexion
CN105150109A (en) * 2015-08-24 2015-12-16 安徽正和橡塑合金有限公司 Polyurethane screen framework sand blasting process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007180094A (en) * 2005-12-27 2007-07-12 Densho Engineering Co Ltd Chuck plate
JP4499031B2 (en) * 2005-12-27 2010-07-07 株式会社 電硝エンジニアリング Chuck plate and manufacturing method of chuck plate
EP1962075A3 (en) * 2007-02-23 2010-12-01 Silicon Micro Sensors GmbH Pressure sensor connexion
CN105150109A (en) * 2015-08-24 2015-12-16 安徽正和橡塑合金有限公司 Polyurethane screen framework sand blasting process

Also Published As

Publication number Publication date
JP3024095B2 (en) 2000-03-21

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