WO2001013419A1 - Dispositif et procede de traitement - Google Patents
Dispositif et procede de traitement Download PDFInfo
- Publication number
- WO2001013419A1 WO2001013419A1 PCT/JP2000/005410 JP0005410W WO0113419A1 WO 2001013419 A1 WO2001013419 A1 WO 2001013419A1 JP 0005410 W JP0005410 W JP 0005410W WO 0113419 A1 WO0113419 A1 WO 0113419A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- processing
- processed
- heating
- transmission window
- film
- Prior art date
Links
- 238000003672 processing method Methods 0.000 title claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 66
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 2
- 238000009877 rendering Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 87
- 235000012431 wafers Nutrition 0.000 description 52
- 239000003507 refrigerant Substances 0.000 description 6
- 239000010453 quartz Substances 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 239000011553 magnetic fluid Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/3065—Plasma etching; Reactive-ion etching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02041—Cleaning
- H01L21/02043—Cleaning before device manufacture, i.e. Begin-Of-Line process
- H01L21/02052—Wet cleaning only
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32192—Microwave generated discharge
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02041—Cleaning
- H01L21/02057—Cleaning during device manufacture
- H01L21/0206—Cleaning during device manufacture during, before or after processing of insulating layers
- H01L21/02063—Cleaning during device manufacture during, before or after processing of insulating layers the processing being the formation of vias or contact holes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
- H01L21/3105—After-treatment
- H01L21/311—Etching the insulating layers by chemical or physical means
- H01L21/31105—Etching inorganic layers
- H01L21/31111—Etching inorganic layers by chemical means
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67098—Apparatus for thermal treatment
- H01L21/67115—Apparatus for thermal treatment mainly by radiation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/20—Positioning, supporting, modifying or maintaining the physical state of objects being observed or treated
- H01J2237/2001—Maintaining constant desired temperature
Definitions
- the present invention relates to a processing apparatus and a processing method for removing an oxide film formed on a surface of an object to be processed.
- a mixed gas of N 2 gas and H 2 gas is activated by plasma to form an active gas species, and NF 3 gas is added to the down flow of the active gas species to activate the NF 3 gas.
- the active gas species of the NF 3 gas is reacted with a natural oxide film on the surface of the wafer to form a generated film, and then the wafer is heated to a predetermined temperature to sublimate and remove the generated gas.
- An apparatus used for such a method includes a processing container for accommodating a wafer therein, an NF 3 active gas type generating device for generating an active gas type of NF 3 gas, and a processing container for heating the wafer.
- a processing apparatus including a heating unit provided outside, and a transmission window provided between the heating unit and the object to be processed and transmitting heat energy from the heating unit. Then, an active gas species of NF 3 gas is reacted at a low temperature with the natural oxide film formed on the surface of the wafer to form a generated film, and the generated film is heated to a predetermined temperature by a heating means to be sublimated. The natural oxide film is removed.
- the present invention has been made in order to solve the above-mentioned problems, and prevents the temperature of an object to be processed from rising due to heat remaining during a heat treatment in a transmission window. It is an object of the present invention to provide a processing apparatus and a processing method capable of continuously processing an object to be processed.
- An invention according to claim 1 is a processing apparatus for removing an oxide film formed on a surface of a processing target, wherein the processing container stores the processing target and an active gas species is generated.
- An active gas species generating device a heating means provided outside the processing vessel for heating the object to be processed, and a transmission window provided in the processing vessel between the heating means and the object to be processed.
- a transparent window that hermetically shields the inside and outside of the container and allows the energy for heating from the heating means to pass through, and a shield plate that can be inserted and removed between the workpiece and the transparent window, and the shield plate is closed.
- the active gas species reacts at a low temperature with the oxide film formed on the surface of the object to be processed to form a product film, and then the shielding plate is opened Radiated heat from the heating means through the transmission window to form a film For example, vaporized and heated to a predetermined temperature, it shall be the said to remove the product film.
- the invention described in claim 2 is a processing apparatus for removing an oxide film formed on the surface of the object to be processed, comprising: an active gas species generating apparatus for generating an active gas species; A first processing chamber for forming a generated film by reacting an active gas species at a low temperature with an oxide film formed on the surface of the object to be processed; and a heating means for heating the object to be processed. A second processing chamber for heating and evaporating the generated film formed on the surface of the object to be processed to a predetermined temperature by means, and removing the generated film; and a first processing chamber and a second processing chamber. And a transporting means for transporting the object to be processed therebetween.
- the invention described in claim 3 is characterized in that the active gas species is an NF 3 gas active gas species.
- the invention described in claim 4 is characterized in that the shielding plate is provided with a cooling means for cooling the shielding plate.
- the transfer means is provided in a transfer chamber connected to the first processing chamber and the second processing chamber and having a non-reactive atmosphere inside. It is characterized by that.
- the active gas species generating device comprises: a plasma forming tube having a plasma forming portion; a plasma gas introducing portion for supplying N 2 gas and H 2 gas into the plasma forming tube; An NF 3 gas supply unit for adding NF 3 gas to an active gas species flowing down from inside the plasma forming tube is provided.
- the invention according to claim 7 is characterized in that the plasma forming section is composed of a microwave generating source for generating a microwave, and a waveguide for introducing the generated microwave into the plasma forming tube. .
- the invention according to claim 8 is characterized in that a processing container for storing the object to be processed, heating means provided outside the processing container for heating the object to be processed, and a heating means provided between the heating means and the object to be processed.
- the invention according to claim 9 is a processing method for removing an oxide film formed on a surface of a processing object, wherein the oxidation method is performed on a surface of the processing object in a first processing chamber. Reacting an active gas species with the film in a low temperature state to form a product film; and transporting the object on which the product film is formed from the first processing chamber to the second processing chamber. And (2) in the treatment chamber, a step of heating the generated film formed on the surface of the object to be processed to a predetermined temperature to vaporize the film, and removing the generated film.
- FIG. 1 is a configuration diagram illustrating a processing apparatus according to a first embodiment of the present invention.
- FIG. 2 is a schematic plan view showing the movable shirt of the processing apparatus shown in FIG. 1 along the line II-II.
- FIG. 3 is a schematic cross-sectional view along the line III-III in FIG.
- FIG. 4 is a schematic plan view showing another example of the movable shirt.
- FIG. 5 is a configuration diagram illustrating a processing apparatus according to the second embodiment of the present invention.
- FIG. 1 to 3 are configuration diagrams illustrating a first embodiment of a processing apparatus.
- the processing apparatus 12 is used to oxidize a plasma forming tube 14 for activating a mixed gas of N 2 gas and H 2 gas by plasma and a semiconductor wafer W to be processed.
- a processing container 16 for performing a predetermined surface treatment for removing a film, particularly a natural oxide film (an oxide film formed unintentionally by contact with atmospheric oxygen or a cleaning solution) is provided.
- the processing vessel 16 is formed in a cylindrical shape from aluminum, and a quartz mounting table 20 supported by a vertically movable support member 18 is provided in the processing vessel 16. ing.
- An exhaust port 22 is provided at the peripheral edge of the bottom of the processing container 16 so that the inside of the processing container 16 can be evacuated.
- An irradiation port 26 is formed at the bottom of the processing container 16 below the mounting table 20, and a quartz transmission window 28 is provided in the irradiation port 26 in an airtight manner. Below the transmission window 28, there are provided a number of heating lamps 36, such as halogen lamps, for heating the mounting table 20 from below, and the heating lamps 36 emit heat. Light is transmitted through the transmission window 28 and is incident on the back surface of the wafer W.
- the plasma forming tube 14 is formed in a tubular shape by, for example, quartz, is opened at the ceiling of the processing container 16, and is airtightly attached to the processing container 16 while standing upright.
- a plasma gas introducing section 44 for introducing a plasma gas composed of N 2 gas and H 2 gas into the tube is provided.
- the plasma introduction section 44 has an introduction nozzle 46 inserted into the plasma forming tube 14, and a gas passage 48 is connected to the introduction nozzle 46.
- the gas passage 48 is filled with an N 2 gas source 52 filled with N 2 gas and H 2 gas through a flow controller 50 such as a mass flow controller.
- H 2 gas sources 54 are connected to each other.
- the plasma forming section 56 includes a microwave generating source 58 for generating a microwave of 2.45 GHz, and a microwave supply device such as an Ebenson-type waveguide provided in the plasma forming tube 14.
- the microwave microwave generated by the microwave generation source 58 is supplied to the microwave supplier 60 via the rectangular waveguide 62. Then, a plasma is formed in the plasma forming tube 14 by the supplied microwave, and a mixed gas of H 2 gas and N 2 gas is activated to form this down flow.
- An outlet 64 which is the lower end of the plasma forming tube 14, is provided with a quartz covering member 66 spreading downward in an umbrella shape in communication therewith.
- the gas flows over the wafer W efficiently by covering the upper part.
- An NF 3 gas supply unit 68 for supplying NF 3 gas is provided immediately below the outlet 64.
- the NF 3 gas supply unit 68 has a ring-shaped shower head 70 made of quartz, and a large number of gas holes 72 are formed in the shower head 70.
- the shower head 70 is connected to an NF 3 gas source 80 for filling NF 3 gas through a communication pipe 74, a gas passage 76, and a flow rate controller 78.
- a movable shirt 110 is provided between the mounting table 20 and the transmission window 28.
- This movable shirt 101 is as shown in FIGS. 2 and 3, and has a shielding plate 103 rotatably disposed so as to cover the transmission window 28.
- the shielding plate 103 is provided with a rotation axis 105 for rotating the shielding plate 103, and the rotation axis 105 passes through the outer wall 107 of the processing container 16. It is arranged.
- a magnetic fluid seal 109 that rotatably and airtightly holds the space between the rotating shaft 105 and the outer wall 107 between the rotating shaft 105 and the outer wall 107 is provided. It is provided.
- the rotating shaft 105 is provided with a shaft-side gear 111.
- the shaft-side gear 111 is connected to a driving motor 111 via a motor-side gear 113. 5 are provided. Then, by operating the drive motor 115, the shield plate 103 is rotated via the shaft-side gear 111 and the motor-side gear 113, and the open position as shown in FIG. And the closed position as shown in FIG. Further, a refrigerant passage 117 is formed inside the shielding plate 103 and the rotating shaft 105. The refrigerant passage 117 extends from the lower end of the rotating shaft 105 to the outside of the processing container 16 and is connected to a refrigerant circulation unit 119 provided outside the processing container 16.
- the coolant circulation means 1 19 allows a coolant such as water to flow through the coolant passage 1 17 to cool the shielding plate 103.
- a coolant such as water
- FIG. 4 is a diagram showing an example of another movable shirt.
- This movable shirt 1 2 1 has a shielding plate 1 2 3 covering a transmission window 2 8.
- the shield plate 1 2 3 is connected to two drive shafts 1 2 5 and 1 2 5.
- the other end of the drive shafts 1 2 5 and 1 2 5 is connected to the piston rod of the hydraulic cylinder 1 2 7 Are connected.
- a magnetic fluid seal 13 1 is provided between the drive shaft 125 and the outer wall 129 at a portion where the drive shaft 125 passes through the outer wall of the processing vessel 16.
- the drive shaft can be moved with respect to the outer wall while keeping the space between the drive shaft 125 and the outer wall 129 airtight.
- the shield plate 123 By operating the hydraulic cylinder 127, the shield plate 123 can be positioned between the open position and the closed position. Also in this case, similarly to the case shown in FIG. 3, a refrigerant passage is formed inside the shielding plate 123 and the drive shaft 125, and at the end of the refrigerant passage located outside the processing vessel 16, It is also possible to connect a refrigerant circulating means provided outside the processing vessel 16 so that the shielding plate 123 can be cooled. By doing so, it is possible to suppress a rise in the temperature of the wafer W due to radiant heat from the shielding plates 123.
- the semiconductor wafer W to be processed is introduced into the processing chamber 16 via a gate valve (not shown), and is mounted on the mounting table 20.
- a contact hole or the like is formed in a previous stage, and a natural oxide film is generated on the bottom surface.
- the inside of the processing container 16 is sealed, and the inside is evacuated.
- the N 2 gas source 52 and the H 2 gas source 54 And H2 gas are introduced into the plasma forming tube 14 from the plasma gas inlet 44 at predetermined flow rates.
- a microwave of 2.45 GHz is generated from the microwave generation source 58 of the microwave forming unit 56, guided to the microwave supplier 60, and introduced into the plasma forming tube 14.
- the N2 gas and the H2 gas are converted into plasma by microwaves and activated, and active gas species are formed.
- the active gas species forms a downflow by evacuation in the processing container 16 and flows down the plasma forming tube 14 toward the outlet 64.
- the NF 3 gas supplied from the NF 3 gas source 80 becomes an active gas species of a down-flow of a mixed gas composed of N 2 gas and H 2 gas. Is added.
- the added NF 3 gas is also activated by the down-flowing active gas species.
- NF 3 gas is also converted into active gas, and reacts with the natural oxide film on the surface of the wafer in combination with the above-mentioned active gas species in the downflow to form a mixed film of Si, N, H, and F. It will be.
- the wafer W Since the reaction is promoted at a low temperature in this process, the wafer W must not be heated during this process, and a formed film is formed at room temperature.
- the movable shirt 103 is in the closed state. This is to prevent the radiant heat from the transmission window 28 heated during the previous heat treatment from reaching the wafer W and increasing the temperature of the wafer.
- the process conditions at this time are as follows: H2, NF3, and N2 are 10 sccm, 150 sccm, and 1400 sccm, respectively, for the gas flow rates.
- the process pressure is 4 Torr
- the plasma power is 400 W
- the process time is 1 minute.
- a product film that has reacted with the natural oxide film is formed on the wafer surface.
- the upper part of the mounting table 20 is covered with the umbrella-shaped covering member 66, the dispersion of the active gas species in the downflow is suppressed, and the active gas species flows down onto the wafer surface efficiently.
- a raw film can be formed on the substrate.
- the supply of each gas of H2, NF3, and N2 is stopped, the driving of the microwave generation source 58 is also stopped, and the processing chamber 16 is evacuated. To eliminate residual gas.
- movable shirt evening 103 opened The heating lamp 36 is turned on to heat the wafer W to a predetermined temperature, for example, 100 ° C. or more. By this heating, the generated film sublimates (vaporizes). As a result, the natural oxide film on the wafer W is removed, and the Si surface appears on the wafer surface.
- the process conditions at this time are a process pressure of 1 mTorr or less, and a process time of about 2 minutes.
- the activated NF 3 gas is discharged. Reacts with the natural oxide film on the surface to form a mixed film of Si, N, H, and F.
- the wafer W is heated by the radiant heat from the transmission window 28 heated during the previous heat treatment. Can be prevented from being heated. Therefore, when the low-temperature processing and the heating processing are sequentially repeated for a plurality of wafers, it is possible to prevent the wafer from being heated by the radiant heat from the previous heating processing during the low-temperature processing. Therefore, the low-temperature treatment and the heat treatment can be performed continuously without an interval, and the oxide film removing operation can be performed efficiently.
- the motor 115 provided outside the processing container and the shielding plate 103 inside the processing container are sealed with a magnetic fluid seal 109. Since they are connected by the shaft 105, there is no need to provide a drive source in the processing container, so that the processing container can be reduced in size and contamination can be prevented. This effect is the same in the reciprocating movable shirt shown in FIG.
- FIG. 5 shows a second embodiment of the present invention.
- the processing apparatus 201 is characterized in that a low-temperature processing chamber and a heating processing chamber are separately provided.
- This processing apparatus 201 has a transfer chamber 203 in the center.
- the transfer chamber 203 is provided with a transfer device for transferring a wafer.
- the inside of the transfer chamber 203 is set to a non-reactive atmosphere, for example, a vacuum, so that the generation of a natural oxide film on the wafer W during the transfer of the wafer W can be suppressed.
- the transfer chamber 203 is provided with a load lock chamber 205 for carrying the wafer to be processed into the transfer chamber 203.
- two low-temperature processing chambers 207 and 207 are provided on the side of the transfer chamber 203 opposite to the load lock chamber 205.
- This low temperature processing chamber 2007 In this example, the movable shirts 101 and the heating lamps 36 were removed from the processing apparatus 12 shown in FIG. In this case, it is necessary that the bottom of the processing container 16 be airtightly closed, but the member for closing the bottom of the processing container 16 is made of light-transmitting material like the transmission window 28 in Fig. 1. It is not necessary to have Therefore, instead of the transmission window 28 in the case of FIG. 1, for example, the bottom of the processing container 16 may be covered with an aluminum plate.
- the activated NF 3 gas reacts with the natural oxide film on the wafer surface to form a mixed film of Si, N, H, and F.
- a heating chamber 209 is provided in the transfer chamber 203.
- a heating means for example, a known resistance heating type stage heater is provided inside the heating chamber 209, and the wafer W can be heated by the stage heater.
- the wafer W after the low-temperature treatment is heated to a predetermined temperature, for example, 100 ° C. or higher, and the heating causes the generated film to sublime (vaporize). As a result, the natural oxide film on the wafer W is removed.
- a cooling chamber 211 is provided in the transfer chamber 203.
- the cooling chamber 211 is for cooling the wafer after the heat treatment.
- the processed wafers are to be stored in a resin cassette and transported out, but if the wafers remain hot, the resin cassette may be damaged. For this reason, the wafer is cooled before being stored in the cassette.
- a wafer to be processed having a natural oxide film formed on its surface is carried from the load lock chamber 205 to the transfer chamber 203.
- the wafer is transported to a low-temperature processing chamber 2007 where it is subjected to a so-called low-temperature processing.
- the heating chamber 209 is provided separately from the low-temperature processing chamber 207, the heat during the previous heating processing remains to perform the low-temperature processing. The adverse effect can be prevented.
- the wafer to be processed is sent to the heating chamber 209.
- the wafer W after the low-temperature treatment is heated to a predetermined temperature, for example, 100 ° C.
- the generated film is sublimated (vaporized) by this heating.
- the natural oxide film of wafer W is removed.
- the heated wafer is sent to the cooling chamber 211. ⁇ ⁇ C is cooled here, then stored in a cassette and carried out. Therefore, it is possible to prevent the possibility that the hot wafer may damage the resin cassette. be able to.
- the activated NF 3 gas is supplied to the wafer surface.
- the wafer can be prevented from being heated by the influence of the heat treatment during the so-called low-temperature treatment, which reacts with the natural oxide film of the silicon and forms a mixed film of Si, N, H and F. Therefore, the low-temperature treatment and the heat treatment can be performed continuously without an interval, so that the oxide film removing operation can be performed efficiently.
- a shield plate is provided between the object to be processed and the transmission window so as to be able to be inserted and withdrawn. Therefore, the shield plate is closed to shut off radiant heat from the transmission window, and the active gas species can react with the oxide film at a low temperature.
- the low-temperature treatment for reacting the active gas species with the oxide film and the subsequent heat treatment are performed in different chambers. Therefore, the low-temperature treatment and the heat treatment can be performed continuously, and the oxide film removing operation can be performed efficiently.
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- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
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- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
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Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/002,788 US20050150455A1 (en) | 1999-08-13 | 2004-12-03 | Processing apparatus and processing method |
US11/980,612 US20080113104A1 (en) | 1999-08-13 | 2007-10-31 | Processing apparatus and processing method |
US11/980,613 US8398813B2 (en) | 1999-08-13 | 2007-10-31 | Processing apparatus and processing method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11/229338 | 1999-08-13 | ||
JP22933899A JP4057198B2 (ja) | 1999-08-13 | 1999-08-13 | 処理装置及び処理方法 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US66776800A Continuation | 1999-08-13 | 2000-09-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001013419A1 true WO2001013419A1 (fr) | 2001-02-22 |
Family
ID=16890603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/005410 WO2001013419A1 (fr) | 1999-08-13 | 2000-08-11 | Dispositif et procede de traitement |
Country Status (4)
Country | Link |
---|---|
US (3) | US20050150455A1 (ja) |
JP (1) | JP4057198B2 (ja) |
KR (1) | KR100666018B1 (ja) |
WO (1) | WO2001013419A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7604701B2 (en) * | 2003-07-14 | 2009-10-20 | Tokyo Electron Limited | Method and apparatus for removing external components from a process chamber without compromising process vacuum |
US20180149427A1 (en) * | 2013-10-17 | 2018-05-31 | Triglia Technologies, Inc. | System and Method of Removing Moisture from Fibrous or Porous Materials Using Microwave Radiation and RF Energy |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100338768B1 (ko) * | 1999-10-25 | 2002-05-30 | 윤종용 | 산화막 제거방법 및 산화막 제거를 위한 반도체 제조 장치 |
JP2005093909A (ja) * | 2003-09-19 | 2005-04-07 | Tokyo Electron Ltd | 基板処理方法及び基板処理装置 |
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Also Published As
Publication number | Publication date |
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JP4057198B2 (ja) | 2008-03-05 |
US20080067147A1 (en) | 2008-03-20 |
KR20020027529A (ko) | 2002-04-13 |
US20050150455A1 (en) | 2005-07-14 |
US8398813B2 (en) | 2013-03-19 |
US20080113104A1 (en) | 2008-05-15 |
JP2001053055A (ja) | 2001-02-23 |
KR100666018B1 (ko) | 2007-01-10 |
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