JP3675183B2 - Semiconductor manufacturing equipment - Google Patents
Semiconductor manufacturing equipment Download PDFInfo
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- JP3675183B2 JP3675183B2 JP22409598A JP22409598A JP3675183B2 JP 3675183 B2 JP3675183 B2 JP 3675183B2 JP 22409598 A JP22409598 A JP 22409598A JP 22409598 A JP22409598 A JP 22409598A JP 3675183 B2 JP3675183 B2 JP 3675183B2
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Description
【0001】
【発明の属する技術分野】
この発明は、半導体製造装置の配管の一部または全てをスパイラル管状のヒ−タ−で保温または加熱する半導体製造装置に関し、この発明の半導体製造装置を使用すれば配管のヒ−タ−巻き付けが容易に行え、温度の安定性も良好であり、半導体処理ガスを円滑に且つ安定して流すことができるため、均一な処理が可能となる。
【0002】
【従来の技術】
従来、半導体製造装置、例えばCVD(化学気相成長法)装置では、窒化珪素膜付け用にジクロロハイドロシラン(SiH2 Cl2 )や、アルミニウムの膜付け用に有機アルミニウム化合物等を供給するラインでは安定供給を目的とし、配管を所定温度に加熱し、ガス状物の凝縮や液状物の固着を防止する必要がある。また、排気ラインでもガス状物質の凝縮、固着防止のため同様に加熱する必要がある。そのため、リボン状のヒ−タ−でライン周囲を巻き付けて加熱する装置が一般的に使用されていた。
【0003】
【発明が解決しようとする課題】
しかし、上記の配管は、微小流量のコントロ−ルができる範囲内でこれに流れるガスや液体に過度の圧力損失を生ぜしめることなく流すことができるに十分ではあるが比較的細めの管径、例えば3/8インチや1/4インチの細管が多く用いられているため、このような細い管にリボンヒ−タ−を均一に巻き付けることは困難であり、しかもリボンヒ−タ−と細管との密着性が悪く、熱効率が低く、従って温度の制御を正確に行うことができない。
【0004】
この発明の目的は、配管への装着が容易で密着性が良いヒ−タ−を備えた半導体製造装置を提供することである。
【0005】
【問題点を解決するための手段】
すなわち、この発明は、処理容器内に戴置した半導体ウエハ−を気化化合物で処理する半導体製造装置において、半導体製造装置の少なくとも一部の配管に、被加熱体である前記配管と同一外形状を有する長尺の形状付与部材にスパイラル状に巻いた内側層となる耐熱性樹脂テ−プA、中間層を形成する接着剤層および外側層を形成する耐熱性樹脂テ−プBのいずれかの層の長手方向の両端間に可撓性の電気抵抗を与える抵抗体を配置し、テ−プの内側層と外側層とを重ねたまま接着剤を硬化して積層一体化させた後、形状付与部材から外すことによって得られた形状保持性のスパイラル管状のヒ−タ−を装着し、配管の周囲をスパイラル管状のヒ−タ−で保温または加熱する半導体製造装置に関する。
【0006】
以下、この発明について、図面も参考にして、詳しく説明する。
図1は、この発明の半導体装置の一実施例の概略図である。
図1において、半導体装置1は、戴置台2に戴置した半導体ウエハ−3上にシャワ−ヘッド4を備えた処理容器5に、スパイラル管状のヒ−タ−6で加熱された配管(図示せず)を通って気化装置7(図示されていないがヒ−タ−を備えている)で気化された反応ガスが導かれ、該気化ガスにはスパイラル管状のヒ−タ−8で加熱された配管9を通ってキャリア−ガスである水素ガスがボンベ10から送られ、一方、前記気化装置7にはポンプ11で送られた液状の有機アルミニウム化合物が配管12を通って送られ、容器13に貯蔵された液状の有機アルミニウム化合物14が配管15を通ってアルゴンガスボンベ16に貯蔵された同伴ガスのアルゴンガスによって一定量供給され、処理後のガスがパ−ジ管17から排出される構造からなる。
【0007】
この発明におけるスパイラル管状のヒ−タ−は、例えば、被加熱体である配管と同一外形状を有する長尺の形状付与部材に巻いた内側層となる耐熱性樹脂テ−プA、中間層を形成する接着剤層、好適にはポリイミド系熱可塑性接着剤またはポリイミド(またはポリイミドシロキサン)/エポキシ樹脂系熱硬化性接着剤(これらをまとめてポリイミド系接着剤という。)(好適には内側層に接する接着剤層と外側層に接する接着剤層とからなる。)および外側層を形成する耐熱性樹脂テ−プBのいずれかの層の長手方向の両端間に可撓性の抵抗体を配置し、テ−プの内側層と外側層とを重ねたまま接着剤を硬化して積層一体化せせることによって得ることができる。
【0008】
この発明において使用されるスパイラル管状のヒ−タ−は、常温で、好適には前記のポリイミド系接着剤を使用することによって、200℃程度以下の高温に加熱した環境下においても、また被加熱体に装着した後もほとんどスパイラル物の外径などの形状や均等・整然さに変化がなく形状保持される。
【0009】
前記のスパイラル管状のヒ−タ−の内側層および外側層を形成する耐熱性樹脂テ−プA、Bとしては、剛性〔厚み×厚み(mm2 )×弾性率(kg/mm2 )〕が0.85kg以上、特に1.0kg以上、その中でも特に1.5kg以上(好ましくは50kg以下)の樹脂フィルム製(好適には耐熱性樹脂フィルム製)であるものが好ましい。
【0010】
上記のような高剛性の耐熱性樹脂テ−プを使用することによって、スパイラル管状ヒ−タ−の他部分への力の伝達が可能になるため、配管へのスパイラル管状ヒ−タ−の装着が容易になる。
また、形状保持性が良好になるため、配管とスパイラル管状ヒ−タ−との間に隙間の少ない(ほとんどない)被覆が可能になる。
【0011】
これに対し、剛性の小さい樹脂テ−プを使用すると、形状保持性が小さくなるため、装着が容易ではなく、装着しても緩んで配管への被覆率が低下する。
【0012】
また、前記の耐熱性樹脂テ−プAとしては、ガラス転移温度あるいは融点が180℃以上である芳香族ポリイミドあるいは芳香族ポリアミドからなり、好適には厚みが25−200μm、幅が3−50mmの樹脂テ−プが使用される。特に、50−300℃での熱膨張係数:線膨張係数(CTE)が60×10-6cm/cm/℃(ppmで表示することもある)以下、その中でも特に3−50×10-6cm/cm/℃であって、引張弾性率が200−1400kg/mm2 である芳香族ポリイミドフィルムあるいは芳香族ポリアミドフィルムなどの耐熱性樹脂テ−プが好適に使用される。そのなかでも、吸水率が4%以下、特に3%以下である芳香族ポリイミドテ−プが好適に使用される。
【0013】
前記の芳香族ポリイミドは、例えば3,3’,4,4’−ビフェニルテトラカルボン酸二無水物、ピロメリット酸二無水物、3,3’,4,4’−ベンゾフェノンテトラカルボン酸二無水物などの芳香族テトラカルボン酸二無水物とp−フェニレンジアミン、4,4’−ジアミノジフェニルエ−テルなどの芳香族ジアミンとを重合、イミド化して得られる。特に、芳香族ポリイミドとして3,3’,4,4’−ビフェニルテトラカルボン酸二無水物を芳香族テトラカルボン酸成分中15モル%以上使用して得られるものが耐熱性、低線膨張係数、低吸水率であることから好ましい。
【0014】
前記の芳香族ポリアミドは、例えば2−クロロテレフタル酸クロリド、2,5−ジクロロテレフタル酸クロリドなどの芳香族酸クロリドと2−クロロ−p−フェニレンジアミン、4,4’−ジアミノジフェニルエ−テルなどの芳香族ジアミンとの反応で得られる。
【0015】
この発明において中間層を形成する接着剤層は、耐熱性の熱可塑性接着剤、熱硬化性接着剤、好適には熱硬化性接着剤からなり、好適には積層した接着剤層の乾燥状態での厚みが2−100μm、幅が3−50mmである。
また、この接着剤層は接着剤付きの樹脂テ−プとして設けてもよくあるいは樹脂テ−プを巻きつけた後、接着剤を塗布あるいは接着剤シ−トを張り合わせて接着剤付きテ−プを設けてもよい。
【0016】
前記熱硬化性接着剤としては、エポキシ樹脂、NBR−フェノ−ル系樹脂、フェノ−ル−ブチラ−ル系樹脂、エポキシ−NBR系樹脂、エポキシ−フェノ−ル系樹脂、エポキシ−ナイロン系樹脂、エポキシ−ポリエステル系樹脂、エポキシ−アクリル系樹脂、アクリル系樹脂、ポリアミド−エポキシ−フェノ−ル系樹脂、ポリイミド系樹脂、ポリイミドシロキサン−エポキシ樹脂などが挙げられる。
【0017】
また、前記熱可塑性接着剤としては、熱融着性ポリイミドが挙げられる。
前記の接着剤は、樹脂テ−プAの片面と樹脂テ−プBの片面とのそれぞれに設けることが好ましい。
【0018】
前記の外側層を形成する耐熱性樹脂テ−プBとしては、ガラス転移温度あるいは融点が180℃以上である芳香族ポリイミド、芳香族ポリアミド、芳香族ポリエステル、フッ素樹脂または芳香族ポリアミドイミドからなり、好適には厚みが25−200μm、幅が3−50mmのテ−プ状フィルムが使用される。特に、50−250℃での熱膨張係数:線膨張係数(CTE)が60×10-6cm/cm/℃(ppmで表示することもある)以下、特に3−50×10-6cm/cm/℃であって、引張弾性率が200−1400kg/mm2 である芳香族ポリイミドフィルムあるいは芳香族ポリアミドフィルムなどの耐熱性樹脂フィルムが好適に使用される。そのなかでも、吸水率が4%以下、特に3%以下である芳香族ポリイミドフィルムが好適に使用される。
【0019】
前記の抵抗体としては、スパイラル状管状ヒ−タ−の長手方向の両端間にヒ−タ−の機能を与える金属箔、金属線、帯状の金属、好適には厚みが5−100μm、幅が0.4−40mm程度の銅箔、ニクロム箔などの金属箔が使用される。
この抵抗体は1本のみを設けてもよく複数本を平行して設けてもよく、また、前記の接着剤によって樹脂テ−プBのほぼ全面に設けてもよいが、ほぼ中央部に設けることが好ましい。
【0020】
また、抵抗体の表面をあらかじめ塗布法などによって耐熱性樹脂で薄く被覆したものを使用してもよい。
【0021】
前記の方法において、配管と同一外形状を有する(形状は、断面円形または角形等任意の形状を有してよい。)長尺の形状付与部材、例えば耐熱性の棒またはパイプにスパイラル状に巻いた内側層となる耐熱性樹脂テ−プA、好適にはテ−プ状芳香族ポリイミドフィルムAとそれと同じ幅か少し幅の狭い外側層となる耐熱性樹脂テ−プB、好適にはテ−プ状芳香族ポリイミドフィルムBとその間に接着剤および長手方向の両端間に電気抵抗を与える抵抗体、好適にはテ−プ状ヒ−タ−を配置し、熱硬化性接着剤の場合には溶媒を乾燥してBステ−ジの段階で、熱可塑性接着剤の場合にはそのまま、さらにその外側に糸状またはテ−プ状の締めつけ部材を巻き付けることでフィルムの内側層と外側層とを重ねたまま、積層体に圧力を加えて軟化点あるいはガラス転移温度あるいは融点以上の温度に加熱することによって、熱硬化性接着剤の場合には硬化温度以上の温度に加熱して、あるいは熱可塑性接着剤の場合には冷却して、接着剤を硬化して積層一体化させた後、スパイラル状の積層体を長尺の形状付与部材から外すことによって行うことが好ましい。
【0022】
前記の糸状またはテ−プ状の締めつけ部材としては、耐熱性で熱可塑性の樹脂製の糸状またはテ−プ状のものがなどが挙げられる。
この締めつけ部材は、熱膨張係数が形状付与部材のものより小さいことが好ましい。
また、締めつけ部材は、熱収縮性を有しているものが好ましい。
【0023】
さらに、締めつけ部材は、組紐であることが好ましい。
【0024】
上記の方法は、好適には、先ず、前記の内側層となる耐熱性樹脂テ−プAおよび耐熱性樹脂テ−プBの片面に接着剤を塗布し、接着剤の乾燥厚みが2−100μmであるテ−プを得る。このテ−プムを3−50mmにスリットし、熱硬化性接着剤付きの耐熱性樹脂テ−プを製造する。この耐熱性樹脂テ−プAを接着剤面を外側にして直径が5−50mmの円状の棒またはパイプにスパイラル状に巻きつけ、両端を固定する。次いで、その上に前記のテ−プよりも幅の狭い抵抗体、好適にはテ−プ状ヒ−タ−をスパイラル状に巻きつける。次いで、さらにその上に接着剤同士が重なるように、外側層となる熱硬化性接着剤付き樹脂テ−プBを巻き付け、樹脂テ−プA/熱硬化性接着剤/ヒ−タ−/熱硬化性接着剤/樹脂テ−プBの構成にして、周囲を糸状またはテ−プ状の締めつけ部材を巻き付けることで加圧・固定して、150−400℃の範囲内の温度に加熱して接着剤を硬化して積層一体化し、冷却した後、形成された積層体を棒またはパイプから外し、スパイラル管状ヒ−タ−を得ることによって行うことができる。
【0025】
前記のスパイラル管状ヒ−タ−は、好適には耐電圧が1.5kV以上、絶縁抵抗が60MΩ以上である。
前記のスパイラル管状ヒ−タ−はそのままで被加熱体に適用してもよく、あるいは適当な長さに切断して使用してもよく、さらに最外層に保温の目的で耐熱性発砲シ−ト、耐熱性多孔シ−トで覆って使用してもよい。
【0026】
また、形状が複雑な被加熱体の場合には、スパイラル管状ヒ−タ−と平面状ヒ−タ−とを組み合わせて使用して配管を覆ってもよい。
【0027】
【実施例】
以下にこの発明の実施例を示す。
実施例1
処理装置として、図1に示す半導体製造装置1の1種である熱CVD成膜装置を用い、有機アルミニウム金属化合物としてDMAH(ジメチルアルミニウムハイドライド)を用いて、半導体ウエハ−3にアルミニウム成膜を形成する例を示す。
【0028】
密閉容器13に微量のエ−テルを添加したDMAHを入れてあり、これをAr(アルゴン)ガスによりDMAHを圧送し、ポンプで定量的に気化装置に導入する。ここで、スパイラル管状ヒ−タ−8で80℃に加熱された配管9からH2ガスが供給され、DMAHが気化し、スパイラル管状ヒ−タ−6で80℃に加熱された配管を通り、処理容器5に到達し、最終的にシャワ−ヘッド4からガスを供給し、半導体ウエハ3の処理を行う。
【0029】
【発明の効果】
この発明は以上説明したように構成されているので、以下に記載のような効果を奏する。
この発明によれば、配管のヒ−タ−巻き付けが容易に行え、温度の安定性も良好であり、半導体処理ガスを円滑に且つ安定して流すことができるため、均一な処理が可能となる。
【図面の簡単な説明】
【図1】図1は、この発明の半導体装置の一実施例の概略図である。
1 半導体製造装置
2 戴置台
3 半導体ウエハ−
4 シャワ−ヘッド
5 処理容器
6 スパイラル管状のヒ−タ−
7 気化装置
8 スパイラル管状のヒ−タ−
9 配管
10 ボンベ
11 ポンプ
12 配管
13 容器
14 液状の有機アルミニウム化合物
15 配管
16 アルゴンガスボンベ
17 パ−ジ管[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a semiconductor manufacturing apparatus that keeps or heats a part or all of piping of a semiconductor manufacturing apparatus with a spiral tubular heater. When the semiconductor manufacturing apparatus of the present invention is used, the heater of the pipe is wound. Since it can be performed easily, the temperature stability is good, and the semiconductor processing gas can be flowed smoothly and stably, uniform processing becomes possible.
[0002]
[Prior art]
Conventionally, in a semiconductor manufacturing apparatus, for example, a CVD (chemical vapor deposition) apparatus, a line supplying dichlorohydrosilane (SiH 2 Cl 2 ) for forming a silicon nitride film or an organoaluminum compound for forming an aluminum film is used. For the purpose of stable supply, it is necessary to heat the piping to a predetermined temperature to prevent condensation of gaseous substances and sticking of liquid substances. Also, it is necessary to heat the exhaust line in the same manner in order to prevent condensation and sticking of gaseous substances. For this reason, a device for heating the periphery of a line with a ribbon-like heater has been generally used.
[0003]
[Problems to be solved by the invention]
However, the above-mentioned piping has a relatively narrow pipe diameter that can flow without causing excessive pressure loss in the gas or liquid flowing in the flow within the range in which the control of a minute flow rate is possible. For example, since 3/8 inch and 1/4 inch thin tubes are often used, it is difficult to uniformly wrap a ribbon heater around such a thin tube, and the ribbon heater and the thin tube are in close contact with each other. The heat efficiency is poor and the thermal efficiency is low, so the temperature cannot be accurately controlled.
[0004]
An object of the present invention is to provide a semiconductor manufacturing apparatus provided with a heater that can be easily attached to piping and has good adhesion.
[0005]
[Means for solving problems]
That is, according to the present invention, in a semiconductor manufacturing apparatus for processing a semiconductor wafer placed in a processing vessel with a vaporized compound, at least a part of the pipe of the semiconductor manufacturing apparatus has the same outer shape as the pipe to be heated. heat-resistant resin tape the inner layer wound spirally shaping member elongated having - flop a, intermediate layer a heat-resistant resin tape to form an adhesive layer and an outer layer to form a - one of flop B After placing a resistor that gives a flexible electric resistance between both ends of the layer in the longitudinal direction, the adhesive is cured with the inner layer and the outer layer of the tape overlapped, and the layers are integrated to form a shape. The present invention relates to a semiconductor manufacturing apparatus in which a shape-retaining spiral tubular heater obtained by removing from an applying member is mounted, and the periphery of the pipe is kept warm or heated by the spiral tubular heater.
[0006]
Hereinafter, the present invention will be described in detail with reference to the drawings.
FIG. 1 is a schematic view of one embodiment of a semiconductor device of the present invention.
In FIG. 1, a semiconductor device 1 is a pipe (not shown) heated by a spiral tubular heater 6 in a processing vessel 5 having a shower head 4 on a semiconductor wafer 3 mounted on a mounting table 2. The reaction gas vaporized by the vaporizer 7 (not shown but provided with a heater) is introduced through the gas generator, and the vaporized gas is heated by a spiral tubular heater 8. Hydrogen gas, which is a carrier gas, is sent from the cylinder 10 through the pipe 9, while the liquid organoaluminum compound sent by the pump 11 is sent to the
[0007]
The spiral tubular heater according to the present invention includes, for example, a heat-resistant resin tape A, which is an inner layer wound around a long shape-giving member having the same outer shape as a pipe to be heated, and an intermediate layer. Adhesive layer to be formed, preferably polyimide-based thermoplastic adhesive or polyimide (or polyimide siloxane) / epoxy resin-based thermosetting adhesive (collectively referred to as polyimide-based adhesive) (preferably on the inner layer) An adhesive layer in contact with the outer layer and an adhesive layer in contact with the outer layer.) And a heat resistant resin tape B forming the outer layer. Then, the adhesive can be cured and laminated and integrated with the inner layer and outer layer of the tape being stacked.
[0008]
The spiral tubular heater used in the present invention is heated at room temperature, preferably even in an environment heated to a high temperature of about 200 ° C. or less by using the polyimide adhesive described above. Even after being attached to the body, the shape, such as the outer diameter of the spiral object, and the shape and uniformity are almost unchanged.
[0009]
The heat-resistant resin tapes A and B forming the inner and outer layers of the spiral tubular heater have rigidity [thickness × thickness (mm 2 ) × elastic modulus (kg / mm 2 )]. Those made of 0.85 kg or more, particularly 1.0 kg or more, and particularly 1.5 kg or more (preferably 50 kg or less) of a resin film (preferably made of a heat resistant resin film) are preferable.
[0010]
By using the high-rigidity heat-resistant resin tape as described above, the force can be transmitted to the other part of the spiral tubular heater, so that the spiral tubular heater is attached to the pipe. Becomes easier.
Further, since the shape retainability is improved, it is possible to cover with little (almost) no gap between the pipe and the spiral tubular heater.
[0011]
On the other hand, when a resin tape with low rigidity is used, shape retention is reduced, so that mounting is not easy, and even if it is mounted, it is loosened and the coverage to the piping is reduced.
[0012]
The heat-resistant resin tape A is made of an aromatic polyimide or aromatic polyamide having a glass transition temperature or a melting point of 180 ° C. or higher, and preferably has a thickness of 25 to 200 μm and a width of 3 to 50 mm. Resin tape is used. Particularly, thermal expansion coefficient at 50-300 ° C .: linear expansion coefficient (CTE) of 60 × 10 −6 cm / cm / ° C. (may be expressed in ppm) or less, especially 3-50 × 10 −6 among them. A heat resistant resin tape such as an aromatic polyimide film or an aromatic polyamide film having a cm / cm / ° C. tensile modulus of 200 to 1400 kg / mm 2 is preferably used. Among them, an aromatic polyimide tape having a water absorption rate of 4% or less, particularly 3% or less is preferably used.
[0013]
Examples of the aromatic polyimide include 3,3 ′, 4,4′-biphenyltetracarboxylic dianhydride, pyromellitic dianhydride, and 3,3 ′, 4,4′-benzophenonetetracarboxylic dianhydride. It is obtained by polymerizing and imidizing an aromatic tetracarboxylic dianhydride such as p-phenylenediamine and 4,4′-diaminodiphenyl ether. In particular, what is obtained by using 3,3 ′, 4,4′-biphenyltetracarboxylic dianhydride as an aromatic polyimide in an amount of 15 mol% or more in the aromatic tetracarboxylic acid component is heat resistance, low linear expansion coefficient, It is preferable because of its low water absorption.
[0014]
Examples of the aromatic polyamide include aromatic acid chlorides such as 2-chloroterephthalic acid chloride and 2,5-dichloroterephthalic acid chloride, 2-chloro-p-phenylenediamine, 4,4′-diaminodiphenyl ether, and the like. Obtained by reaction with an aromatic diamine.
[0015]
In this invention, the adhesive layer forming the intermediate layer is composed of a heat-resistant thermoplastic adhesive, a thermosetting adhesive, preferably a thermosetting adhesive, and preferably in a dry state of the laminated adhesive layers. Has a thickness of 2-100 μm and a width of 3-50 mm.
The adhesive layer may be provided as a resin tape with an adhesive, or after the resin tape is wound, the adhesive is applied or the adhesive sheet is adhered to the tape with the adhesive. May be provided.
[0016]
Examples of the thermosetting adhesive include epoxy resin, NBR-phenolic resin, phenol-butyral resin, epoxy-NBR resin, epoxy-phenolic resin, epoxy-nylon resin, Examples include epoxy-polyester resins, epoxy-acrylic resins, acrylic resins, polyamide-epoxy-phenol resins, polyimide resins, polyimide siloxane-epoxy resins, and the like.
[0017]
Moreover, as said thermoplastic adhesive agent, heat-fusible polyimide is mentioned.
The adhesive is preferably provided on one side of the resin tape A and one side of the resin tape B, respectively.
[0018]
The heat-resistant resin tape B forming the outer layer is made of aromatic polyimide, aromatic polyamide, aromatic polyester, fluororesin or aromatic polyamideimide having a glass transition temperature or melting point of 180 ° C. or higher, A tape-like film having a thickness of 25 to 200 μm and a width of 3 to 50 mm is preferably used. In particular, the coefficient of thermal expansion at 50-250 ° C .: the coefficient of linear expansion (CTE) is 60 × 10 −6 cm / cm / ° C. (sometimes expressed in ppm) or less, particularly 3-50 × 10 −6 cm / A heat resistant resin film such as an aromatic polyimide film or an aromatic polyamide film having a cm / ° C. and a tensile modulus of 200-1400 kg / mm 2 is preferably used. Among them, an aromatic polyimide film having a water absorption rate of 4% or less, particularly 3% or less is preferably used.
[0019]
Examples of the resistor include a metal foil, a metal wire, and a band-like metal that provide a heater function between both ends in the longitudinal direction of the spiral tubular heater, preferably a thickness of 5 to 100 μm and a width. A metal foil such as a copper foil or nichrome foil of about 0.4-40 mm is used.
Only one resistor may be provided, or a plurality of resistors may be provided in parallel. Also, the resistor may be provided on almost the entire surface of the resin tape B by the above-mentioned adhesive, but is provided at substantially the center. It is preferable.
[0020]
Moreover, you may use what coat | covered the surface of the resistor thinly with the heat resistant resin previously by the apply | coating method.
[0021]
In the above-described method, it has the same outer shape as the pipe (the shape may be any shape such as a circular cross-section or a square), and is wound in a spiral shape on a long shape-imparting member such as a heat-resistant rod or pipe. Heat-resistant resin tape A which is the inner layer, preferably tape-shaped aromatic polyimide film A, and heat-resistant resin tape B which is the outer layer of the same width or a little narrower width, preferably tape -In the case of a thermosetting adhesive, a tape-shaped aromatic polyimide film B and an adhesive and a resistor that provides electrical resistance between both ends in the longitudinal direction, preferably a tape-shaped heater, are arranged between them. In the stage of the B stage after drying the solvent, in the case of a thermoplastic adhesive, the inner layer and the outer layer of the film are formed by winding a thread-like or tape-like fastening member on the outside as it is. While stacked, pressurize the laminate to soften it Or by heating to a temperature above the glass transition temperature or melting point, in the case of a thermosetting adhesive, to a temperature above the curing temperature, or in the case of a thermoplastic adhesive, cooling to It is preferable to carry out by removing the spiral laminate from the elongated shape-imparting member after being cured and laminated and integrated.
[0022]
Examples of the thread-like or tape-like fastening member include a heat-resistant and thermoplastic resin-like thread-like or tape-like member.
The fastening member preferably has a smaller coefficient of thermal expansion than that of the shape imparting member.
Further, the fastening member preferably has heat shrinkability.
[0023]
Furthermore, the fastening member is preferably a braid.
[0024]
In the above method, preferably, first, an adhesive is applied to one side of the heat-resistant resin tape A and the heat-resistant resin tape B to be the inner layer, and the dry thickness of the adhesive is 2-100 μm. Get the tape that is The tape is slit to 3-50 mm to produce a heat-resistant resin tape with a thermosetting adhesive. The heat-resistant resin tape A is wound spirally around a circular bar or pipe having a diameter of 5-50 mm with the adhesive surface facing outward, and both ends are fixed. Next, a resistor having a narrower width than that of the tape, preferably a tape-like heater, is wound on it. Subsequently, a resin tape B with a thermosetting adhesive which is an outer layer is wound so that the adhesives overlap with each other, and resin tape A / thermosetting adhesive / heater / heat A curable adhesive / resin tape B is formed, and the periphery is pressurized and fixed by winding a thread-like or tape-like fastening member, and heated to a temperature in the range of 150-400 ° C. After the adhesive is cured, laminated and integrated, and cooled, the formed laminate can be removed from the rod or pipe to obtain a spiral tubular heater.
[0025]
The spiral tubular heater preferably has a withstand voltage of 1.5 kV or more and an insulation resistance of 60 MΩ or more.
The spiral tubular heater may be applied to a heated object as it is, or may be used after being cut to an appropriate length. It may be used by covering with a heat-resistant porous sheet.
[0026]
In the case of an object to be heated with a complicated shape, the pipe may be covered by using a combination of a spiral tubular heater and a planar heater.
[0027]
【Example】
Examples of the present invention will be described below.
Example 1
As a processing apparatus, a thermal CVD film forming apparatus which is one type of the semiconductor manufacturing apparatus 1 shown in FIG. 1 is used, and an aluminum film is formed on the semiconductor wafer 3 using DMAH (dimethylaluminum hydride) as an organoaluminum metal compound. An example is shown.
[0028]
DMAH to which a small amount of ether is added is put in the
[0029]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
According to this invention, the heater can be easily wound around the pipe, the temperature stability is good, and the semiconductor processing gas can be flowed smoothly and stably, so that uniform processing is possible. .
[Brief description of the drawings]
FIG. 1 is a schematic view of one embodiment of a semiconductor device of the present invention.
1 Semiconductor manufacturing equipment 2 Mounting table 3 Semiconductor wafer
4 Shower head 5 Processing vessel 6 Spiral tubular heater
7 Vaporizer 8 Spiral tubular heater
9 Piping 10 Cylinder 11 Pump 12
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22409598A JP3675183B2 (en) | 1998-08-07 | 1998-08-07 | Semiconductor manufacturing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22409598A JP3675183B2 (en) | 1998-08-07 | 1998-08-07 | Semiconductor manufacturing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000058457A JP2000058457A (en) | 2000-02-25 |
| JP3675183B2 true JP3675183B2 (en) | 2005-07-27 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22409598A Expired - Fee Related JP3675183B2 (en) | 1998-08-07 | 1998-08-07 | Semiconductor manufacturing equipment |
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| Country | Link |
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| JP (1) | JP3675183B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6476371B2 (en) * | 2015-03-25 | 2019-03-06 | 株式会社Kokusai Electric | Substrate processing apparatus, heating unit, member, semiconductor device manufacturing method, and piping heating method |
| KR102342095B1 (en) * | 2020-09-09 | 2021-12-24 | 무진전자 주식회사 | Substrate drying apparatus |
| CN114334704A (en) * | 2020-10-10 | 2022-04-12 | 中国科学院微电子研究所 | Gas conveying device, conveying method and semiconductor manufacturing equipment |
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1998
- 1998-08-07 JP JP22409598A patent/JP3675183B2/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| JP2000058457A (en) | 2000-02-25 |
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