WO2010103953A1 - 基板処理装置、トラップ装置、基板処理装置の制御方法及びトラップ装置の制御方法 - Google Patents
基板処理装置、トラップ装置、基板処理装置の制御方法及びトラップ装置の制御方法 Download PDFInfo
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- WO2010103953A1 WO2010103953A1 PCT/JP2010/053271 JP2010053271W WO2010103953A1 WO 2010103953 A1 WO2010103953 A1 WO 2010103953A1 JP 2010053271 W JP2010053271 W JP 2010053271W WO 2010103953 A1 WO2010103953 A1 WO 2010103953A1
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/4412—Details relating to the exhausts, e.g. pumps, filters, scrubbers, particle traps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/60—Deposition of organic layers from vapour phase
Definitions
- the present invention relates to a substrate processing apparatus, a trap apparatus, a substrate processing apparatus control method, and a trap apparatus control method.
- Polyimide is used for an interlayer insulating film, a passivation film, and the like because it has high adhesion and low leakage current.
- PMDA and ODA which are highly reactive monomers, are vaporized, vapor-deposited on the surface of the substrate installed in the chamber, and polymerized / dehydrated on the surface of the substrate to obtain polyimide as a polymer.
- an ordinary vacuum film forming apparatus that does not use a polymer vaporized material as a raw material has a removal device between the chamber and the vacuum pump to prevent unreacted components in the exhaust from entering the vacuum pump as foreign matter.
- a removing device there is known a device for removing unreacted components by reacting them in the removing device and attaching them to the inner wall (for example, Patent Document 2).
- the present invention provides a substrate processing apparatus, a trap apparatus, a substrate processing apparatus control method, and a trap apparatus control method suitable for removing monomers having low adhesion such as PMDA and ODA.
- the present invention includes a chamber for processing a substrate, a gas supply unit for introducing a gas into the chamber, an exhaust unit for exhausting the gas in the chamber, and between the chamber and the exhaust unit.
- a gas supply unit for introducing a gas into the chamber
- an exhaust unit for exhausting the gas in the chamber
- the substrate processing apparatus comprising: a first trap connected to the chamber; and a second trap provided between the first trap and the exhaust unit.
- the first temperature at which unreacted components contained in the gas react to form a polymer is set, and the second trap is set at a second temperature at which unreacted components contained in the gas precipitate as monomers.
- the temperature control part for performing is provided.
- a connection valve is provided between the first trap and the second trap, and the temperature control unit causes the connection valve to be higher than the first temperature.
- the temperature is set to 3.
- the first temperature is set to 140 to 200 ° C.
- the second temperature is set to 120 ° C. or less
- the third temperature is set to 200 ° C. or more.
- the present invention is characterized in that the gas contains at least either PMDA or ODA.
- the present invention is characterized in that the second trap has a mirror-finished surface in contact with the gas.
- the present invention is characterized in that the surface of the second trap contacting the gas is coated with a fluororesin.
- the present invention is characterized in that the second trap has a surface coated with the gas coated with glass.
- the present invention is a trap device provided between a chamber for processing a substrate having a gas supply unit for introducing a gas and an exhaust unit for exhausting the gas in the chamber.
- a first trap connected to the chamber, and a second trap provided between the first trap and the exhaust part, wherein the first trap is included in the gas
- the first trap is set to a first temperature at which unreacted components react to form a polymer
- the second trap is set to a second temperature at which the unreacted components contained in the gas precipitate as monomers.
- a control unit is provided.
- the present invention provides a method for controlling a trap device provided between a chamber for processing a substrate having a gas supply unit for introducing gas and an exhaust unit for exhausting the gas in the chamber.
- the first trap connected to the chamber is set to a first temperature at which unreacted components contained in the gas react to form a polymer, and the first trap and the exhaust section
- the second trap provided therebetween is set to a second temperature at which an unreacted component contained in the gas is deposited as a monomer.
- the present invention provides a method for controlling a trap device provided between a chamber for processing a substrate having a gas supply unit for introducing gas and an exhaust unit for exhausting the gas in the chamber.
- the first trap connected to the chamber is set to a first temperature at which unreacted components contained in the gas react to form a polymer, and the first trap and the exhaust section
- the second trap provided therebetween is set to a second temperature at which an unreacted component contained in the gas is deposited as a monomer.
- raw material monomers can be effectively removed in a substrate processing apparatus and trap using vaporized PMDA, ODA, or the like.
- Configuration diagram of a film forming apparatus in this embodiment Configuration diagram of trap device in the present embodiment Structure of the first trap Correlation diagram between surface area in first trap and deposition rate Structure of second trap Perspective view of the second trap Perspective view of cooling mechanism of second trap Connection valve structure
- This embodiment is a film forming apparatus for obtaining polyimide by vapor deposition polymerization using PMDA and ODA as raw material monomers.
- FIG. 1 shows a film forming apparatus in the present embodiment
- FIG. 2 shows a trap apparatus in the present embodiment.
- the film forming apparatus in the present embodiment has a wafer boat 12 in which a plurality of wafers W on which a polyimide film is formed can be placed in a chamber 11 that can be evacuated by a vacuum pump 50.
- the chamber 11 has injectors 13 and 14 for supplying vaporized PMDA and ODA. Openings are provided in the side surfaces of the injectors 13 and 14, and PMDA and ODA vaporized from the injectors 13 and 14 are supplied from the horizontal direction to the wafer W as indicated by arrows in the drawing.
- the supplied vaporized PMDA and ODA cause a vapor deposition polymerization reaction on the wafer W and precipitate as polyimide.
- vaporized PMDA, ODA, and the like that did not contribute to the formation of the polyimide film flow as they are and are discharged out of the chamber 11 through the exhaust port 15.
- the wafer boat 12 is configured to be rotated by the rotating unit 16 so that the polyimide film is uniformly formed on the wafer W.
- a heater 17 for heating the wafer W in the chamber 11 to a constant temperature is provided outside the chamber 11.
- the injectors 13 and 14 are connected to the PMDA vaporizer 21 and the ODA vaporizer 22 via valves 23 and 24, respectively.
- the injectors 13 and 14 are connected to the PMDA vaporizer 21 and the ODA vaporizer 22, and the injectors.
- An introduction portion 25 is provided between 13 and 14. Thereby, PMDA and ODA vaporized from the PMDA vaporizer 21 and the ODA vaporizer 22 are supplied from the injectors 13 and 14.
- the high temperature nitrogen gas is supplied to the PMDA vaporizer 21 as a carrier gas, and the PMDA vaporizer 21 is supplied in a vaporized state by sublimating PMDA. For this reason, the PMDA vaporizer 21 is maintained at a temperature of 260 ° C.
- high temperature nitrogen gas is supplied as a carrier gas, and the ODA heated to a high temperature and in a liquid state is bubbled with the supplied nitrogen gas, whereby ODA vapor contained in the nitrogen gas is obtained. Supply in a vaporized state. For this reason, the ODA vaporizer 22 is maintained at a temperature of 220 ° C.
- the vaporized PMDA and ODA are supplied into the injectors 13 and 14 through the valves 23 and 24, and become polyimide on the surface of the wafer W installed in the chamber 11. Note that when the polyimide film is formed, the temperature in the chamber 11 is maintained at 200 ° C.
- vaporized PMDA and vaporized ODA are ejected laterally from the injectors 13 and 14, vapor deposited on the wafer W, and a polyimide film is formed by a polymerization reaction. .
- the exhaust from the exhaust port 15 is exhausted by the vacuum pump 50 through the first trap 60 and the second trap 30.
- a connection valve 70 is provided between the first trap 60 and the second trap 30.
- Each of the first trap 60, the second trap 30, and the connection valve 70 is provided with a temperature controller (not shown) such as a heater, and the first trap 60, the second trap 30, and the connection.
- the temperature is controlled by the controller 80 so that each of the valves 70 has a predetermined temperature.
- the trap apparatus in this Embodiment has the 1st trap 60 and the 2nd trap 30, The structure which provided the connection valve 70 between the 1st trap 60 and the 2nd trap 30 It may be. Furthermore, as shown in FIG. 2, the valve 90 may be provided between the second trap 30 and the vacuum pump 50.
- FIG. 3 shows the first trap 60.
- the first trap 60 has a structure in which a plurality of disc-shaped fins 62 are arranged inside a cylindrical casing portion 61.
- the suction part 63 of the first trap 60 is connected to the exhaust port 15 in the chamber 11, and the exhausted gas (gas) is sucked by exhausting by the vacuum pump 50 through the second trap 30 and the like.
- the part 63 enters the inside of the first trap 60.
- the first trap 60 is maintained at 140 to 200 ° C. by the controller 80. Therefore, the plurality of fins 62 installed in the first trap 60 are also maintained at this temperature.
- the vaporized PMDA and ODA react to form polyimide, so that PMDA and ODA that have flowed into the first trap 60 from the chamber 11 react to form a polyimide film on the surface of the fin 62.
- PMDA and ODA which are present as gases in the exhaust gas, can be reacted to be excluded from the gas in the exhaust gas as much as possible, and then exhausted from the exhaust port 64.
- the first trap 60 in the present embodiment is arranged in multiple stages in the casing 61 so that the fins 62 are substantially perpendicular to the exhaust passage.
- an exhaust passage is formed by the openings of the fins 62 arranged in multiple stages.
- FIG. 4 shows the surface area of the flow path to be exhausted in the first trap 60, that is, the surface area through which the exhaust gas passes through the first trap 60 and the film formation speed by the gas in the exhaust gas after passing through the flow path. It shows the relationship. As the surface area of the flow path increases, the film formation rate by the gas in the exhaust gas that has passed through the flow path decreases. Therefore, PMDA and ODA in the exhaust gas are further excluded as the surface area of the flow path increases.
- the casing 61 has a height of 1000 mm and an inner diameter of 310 mm
- the fin 62 has an outer diameter of 300 mm and an inner diameter of 110 mm.
- the pitch is 24 mm, and 30 fins 62 are provided.
- the outer side of the second trap 30 is constituted by a side surface portion 33, an upper surface portion 34, and a bottom surface portion 35.
- the side surface portion 33 and the upper surface portion 34 are connected via an O-ring (not shown) provided in the groove 36 in the side surface portion 33.
- the side surface portion 33 and the bottom surface portion 35 are connected via an O-ring (not shown) provided in the groove 37 in the side surface portion 33.
- the second trap 30 is provided with a suction port 31 on the side surface portion 33 and a discharge port 32 on the bottom surface portion 35.
- the suction port 31 of the second trap 30 is connected to the discharge port 64 of the first trap 60 via the connection valve 70, and the PMDA in a vaporized state discharged from the discharge port 64 of the first trap 60.
- the ODA flows into the second trap 30 through the exhaust port 15 and the suction port 31.
- the discharge port 32 of the second trap 30 is connected to the vacuum pump 50, and an air flow is generated in the second trap 30 by the exhaust by the vacuum pump 50.
- partition walls 40, 41, and 42 are provided inside the second trap 30, the partition wall 40 is connected to the bottom surface portion 35 of the outer wall of the second trap 30, and the partition wall 41 is connected to the second trap 30.
- the upper wall 34 of the outer wall of the trap 30 is connected, and the partition wall 42 is connected to the lower wall 35 and the outlet 32 of the outer wall of the second trap 30.
- the partition wall 41 and the partition wall 42 form a channel 45 serving as a third channel, and the channel 46 serving as a fourth channel is formed inside the partition wall 42.
- the first flow path 43, the second flow path 44, the third flow path 45, and the fourth flow path 46 are formed concentrically. It is formed so that it goes to the center direction in order. Therefore, the suction port 31 connected to the flow channel 43 flows along the tangential direction of the cylindrical side surface portion 33 so that the airflow easily flows into the flow channel 43 without resistance at the side surface portion 33 of the outer wall of the trap 40. It is formed toward the path 43. Further, the discharge port 32 connected to the flow path 46 is provided in the center portion of the bottom surface portion 35 of the outer wall of the second trap 30.
- a water cooling pipe 47 is provided as a cooling mechanism in the flow path 44 that is the second flow path, and this water cooling pipe 47 has a function of lowering the temperature of the inflowing airflow.
- the airflow flows downward in the drawing through the flow path 44 formed by the partition wall 40 and the partition wall 41.
- the partition wall 41 is connected to the upper surface portion 34 of the outer wall of the second trap 30, and a gap is formed between the partition wall 41 and the inside of the bottom surface portion 35 of the outer wall of the second trap 30.
- a water-cooled pipe 47 is provided in the flow path 44, and the inflowed PMDA and ODA in an inflow state are cooled and solidified on the surface of the water-cooled pipe 47 and the like.
- the water cooling pipe 47 has a large surface area for cooling, and can rapidly cool the airflow.
- the shape of the water-cooled pipe 47 is cylindrical, it is difficult for PMDA and ODA to be solidified by solidification. Therefore, the PMDA and ODA solidified by solidification on the surface of the water-cooled pipe 47 and the like are separated from the surface of the water-cooled pipe 47 and the bottom surface of the outer wall of the second trap 30 is caused by the downward airflow flowing in the flow path 44. It falls and deposits inside the bottom portion 35 between the portions 35, that is, between the partition walls 40 and 42.
- the airflow flows upward in the drawing in the flow path 45 formed by the partition walls 41 and 42.
- the partition wall 42 is connected to the bottom surface portion 35 of the outer wall of the second trap 30, and a gap is formed between the partition wall 42 and the inside of the upper surface portion 34 of the outer wall of the second trap 30. This is because the airflow that flows is directed toward this gap.
- the second trap 30 in the present embodiment is installed so that the downward direction is the same as the direction in which gravity works, and the upward direction is opposite to the downward direction, that is, This is the direction rotated approximately 180 °. Note that the directions may be slightly different as long as the same effects as in the present embodiment can be obtained.
- the water cooling pipe 47 is installed in the flow path 44, that is, the flow path in which the airflow flows downward.
- PMDA and ODA solidified on the surface of the water-cooled pipe 47 and the like are easily dropped and deposited inside the bottom surface portion 35 of the outer wall of the second trap 30 by a downward air flow.
- the solidified PMDA and ODA are deposited inside the bottom surface portion 35 due to the influence of gravity.
- the deposition on the inside of the bottom surface portion 35 can be promoted.
- the solidified PMDA and ODA do not adhere to and accumulate on the surface of the water-cooled pipe 47, the same cooling state is always maintained.
- the velocity of the airflow flowing in the second trap 30 is such that the solidified PMDA and ODA accumulated inside the bottom surface portion are evacuated by the vacuum pump 50 so that the airflow rising in the flow path 45 is not wound up.
- Speed is set.
- the arrangement of the partition walls 40, 41, and 42 in the second trap 30 is also designed in consideration of the speed of the airflow. For example, if the interval between the partition wall 41 and the bottom surface portion 35 is narrowed, it is not preferable because the flow of airflow easily lifts PMDA and ODA deposited inside the bottom surface portion.
- a foreign substance extraction unit (not shown) is provided in a region between the partition wall 40 and the partition wall 42, and the deposited PMDA and ODA It is possible to take out more, and maintenance etc. can be performed easily.
- water whose temperature and flow rate are adjusted is supplied to the water cooling pipe 47 from the water supply port 48 and drained from the drain port 49.
- the water-cooled pipe 47 is mirror-finished to prevent adhesion of solidified PMDA and ODA on the surface of the water-cooled pipe 47 and the like. Examples of methods for performing such mirror finishing include electrolytic polishing, chemical polishing, composite polishing, and mechanical polishing.
- the cooling mechanism has a large surface area for cooling and the solidified PMDA and ODA are easily peeled off. If it is. For this reason, it is preferable that the surface of the cooling mechanism like the water-cooled pipe 47 is convex rather than concave or flat.
- the second trap 30 is for solidifying and removing PMDA and ODA present in the exhausted gas. Therefore, the entire second trap 30 is controlled by the controller 80 so as to be 120 ° C. or lower.
- the temperature of the water-cooled pipe 47 and the flow rate of flowing water in the second trap 30 in the present embodiment can be controlled by a control program operating on a computer (not shown).
- the control program can also be stored in a storage medium that can be read by a computer.
- connection valve 70 provided between the first trap 60 and the second trap 30
- the connection valve 70 is for opening and closing between the first trap 60 and the second trap 30, and an opening / closing part 72 is provided in the opening 71. As the part 72 moves, opening and closing through the opening 71 is performed. It is also possible to perform a gas purge 73.
- the connection valve 70 is preferably set to a temperature as high as 200 ° C. or higher so that PMDA and ODA present in the exhaust gas react to generate polyimide and the generated polyimide does not adhere. However, the temperature is set to 200 to 260 ° C. in consideration of the heat resistance of the connection valve 70 and the like.
- the heat resistance performance of the connecting valve permits, for example, if the temperature is set to more than 450 ° C., the polyimide is decomposed, so that it is possible to prevent adhesion.
- a valve having a wide opening 71 is preferable so as not to reduce the conductance.
- FIG. 9 shows an exhaust path from the chamber 11 to the vacuum pump 50. Specifically, from the chamber 11, the first trap 60, the connection valve 70, and the second trap 30 are connected in this order, and finally connected to the vacuum pump 50.
- the temperature of the chamber 11 is set to about 200 ° C.
- the first trap 60 is set to 140 to 200 ° C.
- the second trap is set to 120 ° C. or less
- the connection valve 70 is set to 200 to 260 ° C.
- the temperature setting in the trap device is controlled by the controller 80 so that each temperature is set.
- the first trap 60 is set to a temperature lower than the temperature of the chamber 11.
- the connection valve 70 is set to a temperature higher than that of the chamber 11 and the first trap 60.
- the second trap 30 is set to a temperature at which PMDA and ODA solidify and is lower than the first trap 60.
- the connection valve 70 exhausts the polyimide while preventing the polyimide from adhering as much as possible. Is allowed to flow through the second trap 30, and PMDA and ODA can be solidified and removed in the second trap 30.
- polyimide adheres to and is removed from the fins 62 of the first trap 60, and PMDA and ODA solidify on the mirror-finished surface in the second trap 30 and move downward without adhering. Since it falls, it is possible to remove PMDA and ODA in the exhaust gas without affecting the conductance. Further, since each of the first trap 60 and the second trap 30 can be replaced independently, the maintenance cost and the like can be reduced. In particular, since most of PMDA and ODA in the exhaust gas are removed by the first trap 60, the replacement frequency of the second trap 30 can be extremely low.
- the vacuum pump 50 a roots pump, a screw pump, or the like, which is a dry pump, a rotary pump, a scroll pump, or the like is used. This is because these vacuum pumps have a large displacement and are suitable for film formation while flowing gas. However, these vacuum pumps are particularly prone to failure when polyimide or the like is deposited in the vacuum pump. Therefore, by connecting the trap device in the present embodiment between the chamber 11 and the vacuum pump 50, the vacuum pump can be prevented from malfunctioning even when the above-described vacuum pump is used. Similarly, a vacuum pump failure can be prevented for a film forming apparatus having a structure including this trap apparatus.
- the present invention relates to a substrate processing apparatus for laminating a material on a substrate such as a wafer.
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Abstract
Description
図1及び図2に基づき、本実施の形態におけるトラップ装置及び成膜装置について説明する。尚、図1は、本実施の形態における成膜装置を示すものであり、図2は、本実施の形態におけるトラップ装置を示すものである。
次に、第1のトラップ60について説明する。図3に第1のトラップ60を示す。第1のトラップ60は、円筒状の筐体部61の内部に複数の円盤状のフィン62を配置した構造のものである。第1のトラップ60の吸入部63は、チャンバー11における排気口15と接続されており、第2のトラップ30等を介し、真空ポンプ50により排気することにより、排気される気体(ガス)が吸入部63より第1のトラップ60の内部に入り込む。第1のトラップ60は、コントローラ80により、140~200℃に保たれており、よって、第1のトラップ60の内部に設置された複数のフィン62も、この温度に保たれている。この温度では気化したPMDAとODAが反応しポリイミドが形成されるため、チャンバー11から第1のトラップ60の内部に流れ込んだPMDAとODAとが反応し、フィン62の表面にポリイミド膜を形成する。このようにして、排気中の気体として存在するPMDAとODAとを反応させて、できるだけ排気中の気体より排除することができ、この後、排出口64より排気される。
次に、図5、図6及び図7に基づき本実施の形態における第2のトラップ30について説明する。本実施の形態における第2のトラップ30の外側は、側面部33、上面部34、底面部35により外壁が構成されている。側面部33と上面部34とは、側面部33における溝36に設けられた不図示のOリングを介し接続されている。また、側面部33と底面部35とは、側面部33における溝37に設けられた不図示のOリングを介し接続されている。また、第2のトラップ30には、側面部33に吸入口31と、底面部35に排出口32とが設けられている。第2のトラップ30の吸入口31は、接続バルブ70を介して第1のトラップ60の排出口64と接続されており、第1のトラップ60の排出口64より排出された気化した状態のPMDA及びODAは、排気口15及び吸入口31を介し第2のトラップ30に流れこむ。また、第2のトラップ30の排出口32は真空ポンプ50に接続されており、真空ポンプ50による排気により第2のトラップ30内に気流が生じる。
次に、第1のトラップ60と第2のトラップ30との間に設けられる接続バルブ70について説明する。図8に示すように、接続バルブ70は、第1のトラップ60と第2のトラップ30との間の開閉を行うためのものであり、開口部71に開閉部72が設けられており、開閉部72が移動することにより、開口部71を介した開閉が行われる。また、ガスパージ73を行うことも可能である。
尚、接続バルブ70には、排気中に存在するPMDAとODAとが反応しポリイミドが生成され、生成されたポリイミドが付着しないように、200℃以上のできるだけ高い温度に設定されていることが好ましいが、接続バルブ70の耐熱性等を考慮して200~260℃の温度に設定されている。接続バルブの耐熱性能が許容するのであれば、例えば450℃を超える温度に設定すると、ポリイミドは分解するので、付着を防ぐことが可能になる。また、コンダクタンスを低下させないよう開口部71が広い形状のバルブが好ましい。
次に、第1のトラップ60、第2のトラップ30、接続バルブ70、チャンバー11の温度の関係について説明する。図9は、チャンバー11から真空ポンプ50までの排気経路を示すものである。具体的には、チャンバー11から、第1のトラップ60、接続バルブ70、第2のトラップ30の順に接続され、最後に真空ポンプ50に接続されている。本実施の形態では、前述したように、チャンバー11の温度は約200℃、第1のトラップ60は140~200℃、第2のトラップは120℃以下、接続バルブ70は200~260℃に設定されている。尚、トラップ装置における温度設定は、コントローラ80により制御することにより、各々の温度設定が行われる。
12 ウエハボート
13 インジェクター
14 インジェクター
15 排気口
16 回転部
17 ヒーター
21 PMDA気化器
22 ODA気化器
23 バルブ
24 バルブ
25 導入部
30 第2のトラップ
31 吸入口
32 排出口
33 側面部
34 上面部
35 底面部
36、37 溝
40、41、42 隔壁
43、44、45、46 流路
47 水冷パイプ
48 給水口
49 排水口
50 真空ポンプ
60 第1のトラップ
70 接続バルブ
80 コントローラ
W ウエハ
Claims (18)
- 基板を処理するためのチャンバーと、
前記チャンバー内にガスを導入するためのガス供給部と、
前記チャンバー内のガスを排気するための排気部と、
前記チャンバーと排気部との間において、前記チャンバーに接続された第1のトラップと、
前記第1のトラップと前記排気部との間に設けられた第2のトラップと、
を有する基板処理装置において、
前記第1のトラップは、前記ガスに含まれる未反応成分が反応してポリマーを形成する第1の温度に設定し、前記第2のトラップは、前記ガスに含まれる未反応成分がモノマーとして析出する第2の温度に設定するための温度制御部が設けられていることを特徴とする基板処理装置。 - 前記第1のトラップと前記第2のトラップとの間には接続バルブが設けられており、
前記温度制御部により、前記接続バルブは、前記第1の温度よりも高い第3の温度に設定されているものであることを特徴とする請求項1に記載の基板処理装置。 - 前記第1の温度は140~200℃に設定され、前記第2の温度は120℃以下に設定され、前記第3の温度は200℃以上に設定されていることを特徴とする請求項2に記載の基板処理装置。
- 前記ガスは、少なくともPMDAまたはODAのいずれかを含むことを特徴とする請求項1から3のいずれかに記載の基板処理装置。
- 前記第2のトラップは、前記ガスが接触する表面が鏡面加工されていることを特徴とする請求項1から4のいずれかに記載の基板処理装置。
- 前記第2のトラップは、前記ガスが接触する表面がフッ素樹脂によってコーティングされていることを特徴とする請求項1から4のいずれかに記載の基板処理装置。
- 前記第2のトラップは、前記ガスが接触する表面がガラスによってコーティングされていることを特徴とする請求項1から4のいずれかに記載の基板処理装置。
- ガスを導入するためのガス供給部を有する基板を処理するためのチャンバーと、前記チャンバー内のガスを排気するための排気部との間に設けられたトラップ装置であって、
前記チャンバーに接続された第1のトラップと、
前記第1のトラップと前記排気部との間に設けられた第2のトラップと、
を有し、前記第1のトラップは、前記ガスに含まれる未反応成分が反応してポリマーを形成する第1の温度に設定し、前記第2のトラップは、前記ガスに含まれる未反応成分がモノマーとして析出する第2の温度に設定するための温度制御部が設けられていることを特徴とするトラップ装置。 - 前記第1のトラップと前記第2のトラップとの間には接続バルブが設けられており、
前記温度制御部により、前記接続バルブは、前記第1の温度よりも高い第3の温度に設定されているものであることを特徴とする請求項8に記載のトラップ装置。 - 前記第1の温度は140~200℃に設定され、前記第2の温度は120℃以下に設定され、前記第3の温度は200℃以上に設定されていることを特徴とする請求項9に記載のトラップ装置。
- 前記ガスは、少なくともPMDAまたはODAのいずれかを含むことを特徴とする請求項8から10のいずれかに記載のトラップ装置。
- 前記第2のトラップは、前記ガスが接触する表面が鏡面加工されていることを特徴とする請求項8から11のいずれかに記載のトラップ装置。
- 前記第2のトラップは、前記ガスが接触する表面がフッ素樹脂によってコーティングされていることを特徴とする請求項8から11のいずれかに記載のトラップ装置。
- 前記第2のトラップは、前記ガスが接触する表面がガラスによってコーティングされていることを特徴とする請求項8から11のいずれかに記載のトラップ装置。
- ガスを導入するためのガス供給部を有する基板を処理するためのチャンバーと、前記チャンバー内のガスを排気するための排気部との間に設けられたトラップ装置の制御方法であって、
前記チャンバーに接続された第1のトラップを前記ガスに含まれる未反応成分が反応してポリマーを形成する第1の温度に設定し、
前記第1のトラップと前記排気部との間に設けられた第2のトラップを前記ガスに含まれる未反応成分がモノマーとして析出する第2の温度に設定することを特徴とする基板処理装置の制御方法。 - 前記第1のトラップと前記第2のトラップとの間には接続バルブが設けられており、
前記接続バルブは、前記第1の温度よりも高い第3の温度に設定されていることを特徴とする請求項15に記載の基板処理装置の制御方法。 - ガスを導入するためのガス供給部を有する基板を処理するためのチャンバーと、前記チャンバー内のガスを排気するための排気部との間に設けられたトラップ装置の制御方法であって、
前記チャンバーに接続された第1のトラップを前記ガスに含まれる未反応成分が反応してポリマーを形成する第1の温度に設定し、
前記第1のトラップと前記排気部との間に設けられた第2のトラップを前記ガスに含まれる未反応成分がモノマーとして析出する第2の温度に設定することを特徴とするトラップ装置の制御方法。 - 前記第1のトラップと前記第2のトラップとの間には接続バルブが設けられており、
前記接続バルブは、前記第1の温度よりも高い第3の温度に設定されていることを特徴とする請求項17に記載のトラップ装置の制御方法。
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JP6111171B2 (ja) * | 2013-09-02 | 2017-04-05 | 東京エレクトロン株式会社 | 成膜方法及び成膜装置 |
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