WO2001059826A1 - Nacelle de silicium a film de protection, procede de fabrication, et plaquette en silicium traitee thermiquement utilisant ladite nacelle - Google Patents
Nacelle de silicium a film de protection, procede de fabrication, et plaquette en silicium traitee thermiquement utilisant ladite nacelle Download PDFInfo
- Publication number
- WO2001059826A1 WO2001059826A1 PCT/JP2001/000943 JP0100943W WO0159826A1 WO 2001059826 A1 WO2001059826 A1 WO 2001059826A1 JP 0100943 W JP0100943 W JP 0100943W WO 0159826 A1 WO0159826 A1 WO 0159826A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- boat
- silicon
- oxide film
- argon
- protective film
- Prior art date
Links
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 229910052710 silicon Inorganic materials 0.000 title claims abstract description 63
- 239000010703 silicon Substances 0.000 title claims abstract description 63
- 230000001681 protective effect Effects 0.000 title claims abstract description 57
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 7
- 238000000034 method Methods 0.000 title claims description 26
- 235000012431 wafers Nutrition 0.000 claims abstract description 70
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims abstract description 64
- 238000010438 heat treatment Methods 0.000 claims abstract description 51
- 239000001257 hydrogen Substances 0.000 claims abstract description 46
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 46
- 239000012298 atmosphere Substances 0.000 claims abstract description 44
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229910052786 argon Inorganic materials 0.000 claims abstract description 33
- 239000007789 gas Substances 0.000 claims abstract description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000001301 oxygen Substances 0.000 claims abstract description 13
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 13
- 150000002431 hydrogen Chemical class 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 41
- 239000002184 metal Substances 0.000 abstract description 41
- 238000011109 contamination Methods 0.000 abstract description 35
- 239000002245 particle Substances 0.000 abstract description 9
- 239000000428 dust Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 150000003376 silicon Chemical class 0.000 abstract 1
- 230000002269 spontaneous effect Effects 0.000 abstract 1
- 239000010408 film Substances 0.000 description 163
- 150000004767 nitrides Chemical class 0.000 description 23
- 230000008569 process Effects 0.000 description 14
- 239000013078 crystal Substances 0.000 description 6
- 238000005530 etching Methods 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 4
- 229910010271 silicon carbide Inorganic materials 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 239000012299 nitrogen atmosphere Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- -1 silicon enodoka Chemical class 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000012300 argon atmosphere Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 125000004430 oxygen atom Chemical group O* 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- SBEQWOXEGHQIMW-UHFFFAOYSA-N silicon Chemical compound [Si].[Si] SBEQWOXEGHQIMW-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 239000011856 silicon-based particle Substances 0.000 description 1
- 239000010409 thin film Substances 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
- H01L21/324—Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
-
- 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
- H01L21/673—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 using specially adapted carriers or holders; Fixing the workpieces on such carriers or holders
- H01L21/67303—Vertical boat type carrier whereby the substrates are horizontally supported, e.g. comprising rod-shaped elements
- H01L21/67306—Vertical boat type carrier whereby the substrates are horizontally supported, e.g. comprising rod-shaped elements characterized by a material, a roughness, a coating or the like
-
- 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
- H01L21/673—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 using specially adapted carriers or holders; Fixing the workpieces on such carriers or holders
- H01L21/67313—Horizontal boat type carrier whereby the substrates are vertically supported, e.g. comprising rod-shaped elements
- H01L21/67316—Horizontal boat type carrier whereby the substrates are vertically supported, e.g. comprising rod-shaped elements characterized by a material, a roughness, a coating or the like
Definitions
- the present invention relates to heat treatment of silicon dioxide, and more particularly to heat treatment for suppressing metal contamination of boats and wafers used for heat treatment.
- Si boat silicon (Si) boat (hereinafter sometimes referred to as a Si boat)
- the material is completely the same as that of the wafer. Therefore, low impurity levels can be produced, so that the pollution level is reduced.
- the surface of the Si boat is etched with hydrogen and argon anneal to react with the metal because the Si atoms are exposed and active. It will be easier. In other words, the Si boat itself is vulnerable to metal contamination and once exposed to metal contamination, is likely to become a source of subsequent contamination.
- the silicon wafer to be subjected to the heat treatment is subjected to cleaning and the like as a pre-process of the heat treatment, but may be contaminated by the metal contained in the cleaning liquid. Place the contaminated greenware on the Si boat as it is The boat is contaminated by contaminants adhering to the wafer, and the boat is subsequently contaminated by heat treatment of other wafers. Until that time, the boat could be contaminated by the Si boat.
- the heat treatment boat itself is etched into the atmosphere gas, and as a result, the wafer is heated. Vulnerable to metal contamination from boats.
- Metal contamination in wafer heat treatment is a major problem.For example, if metal contamination is present in the field after heat treatment, the yield will decrease during the subsequent device process. It can be a factor that For example, when an oxide film is grown on a wafer surface, the metal oxide contaminates the oxide film thickness, causing leakage current from the thinned oxide film. There is. Furthermore, the problem that the metal contamination becomes metal oxide and remains without being etched by a normal etching solution, and this portion of the wafer surface is not oxidized in a subsequent process. Can also occur.
- metal contamination affects the oxide film interface, which may worsen microchlores.
- COP Crystal Originated Particulate 1e
- a technique for eliminating the COP a technique of heat-treating (annealing) the wafer with high-temperature hydrogen, argon (Ar) gas or the like is known.
- the amount of metal contamination is lower than in normal high temperature oxidation performed at the same temperature and time. Will increase. This means that in the case of oxidation, the oxide film formed on the surface of the wafer serves as a protective film against metal contamination, but when subjected to high-temperature heat treatment in a hydrogen atmosphere, Si is etched. It is likely that the active Si surface would be exposed, making it more susceptible to metal contamination.
- Japanese Patent Application Laid-Open No. H08-1485852 discloses a silicon or silicon carbide board on the surface of silicon. By thermally growing the nitride film, or by thermally growing the silicon oxide film and then the nitride film, the top surface of the boat can be cooled. A boat in which a silicon nitride film is thermally grown is disclosed. Thus, the nitride film thermally grown on the outermost surface of the boat becomes a dense film and prevents the diffusion of metal impurities from inside the boat to the anoeno.
- the nitride film has a significantly different coefficient of thermal expansion from silicon, if the material of the boat is made of silicon, it will come off when the film thickness increases. There is a problem that it is easy.
- the nitride film is harder than silicon, if the nitride film is formed on the outermost surface of the aerboat, only the oxide film, which is as thin as a natural oxide film, is attached. In the case of heat treatment, the surface of the wafer may be scratched, and dislocations may be generated during the heat treatment starting from the scratch.
- the fact that the nitride film is hard means that not only the nitride film itself, but also the wafer can be scraped and increase the silicon particles. You.
- An object of the present invention is to provide a wafer heat treatment boat and a method for heat treatment of wafers, which do not damage the surface and do not generate any noise.
- a silicon boat for supporting a silicon wafer when heat-treating the silicon wafer comprising: A silicon board characterized in that a protective film made of a thermal oxide film is directly formed on the surface of the substrate.
- the surface of the heat-treated boat is etched by an atmospheric gas. This prevents the boat itself from being contaminated with metal.
- a heat treatment without contaminating the silicon wafer. It becomes something.
- the oxide film can be easily removed with hydrofluoric acid or the like and a thermal oxide film can be formed again, which is an advantage that the regenerating process is very easy. There is also.
- the thickness of the protective film made of the thermal oxide film is lOOnm or more.
- the Si boat body can be reliably protected, and the occurrence of metal contamination can be more reliably prevented.
- the silicon boat is formed by mixing anolesone, hydrogen, or a mixed gas of argon and hydrogen. In a temperature range of 100 ° C or more to remove the natural oxide film on the boat surface, and then heat-treat in an atmosphere containing oxygen.
- a method for manufacturing a silicon board characterized by growing a protective film made of a thermal oxide film on a port surface.
- a protective film made of an oxide film can be directly formed on the surface of the boat. Prevents metal contamination of the body.
- thermal oxide film having a thickness of 100 nm or more as the protective film.
- the thickness of the oxide film is 100 nm or more, even if high-temperature heat treatment is subsequently performed with Ar or the like, etching is hardly performed, and a pinhole is generated. There is nothing.
- the silicon cylinder according to the present invention is used in an atmosphere of argon or a mixed gas of argon and hydrogen.
- a method for heat-treating silicon silicon which is characterized by heat-treating a silicon blade.
- the silicon-board according to the present invention is used for the heat treatment of argon or argon.
- a silicon ionizer characterized by being heat-treated in an atmosphere of a mixed gas of argon and hydrogen is also provided.
- a protective film made of a thermal oxide film is formed on the surface, and the generation of pinholes is suppressed even when a high-temperature Ar heat treatment or the like is performed. And metal contamination does not occur. Therefore, if the silicon board is used to perform heat treatment while supporting silicon, the wafer will not be contaminated with metal. Also, since the thermal oxide film is not as hard as the nitride film and is less likely to peel off than the nitride film, the heat treatment using the silicon boat according to the present invention has Scratched or putty It does not adhere to the particles, and has a good yield in the subsequent device process, and can be suitably used.
- a silicon cylinder characterized in that a protective film made of a thermal oxide film is directly formed on a surface thereof. If the silicon wafer is heat-treated in an atmosphere of argon or a mixed gas of argon and hydrogen using a boat having a protective film formed thereon, the boat will The wafer is not etched by the body and the ambient gas, and the wafer can be heat-treated while preventing metal contamination and generation of particles. In addition, the heat-treated “ano” can be suitably used in a device process. BRIEF DESCRIPTION OF THE FIGURES
- Figure 1 is a graph showing the Fe concentration of silicon-anodes that have been Ar heat-treated using Si boats with different pretreatments.
- the wafer heat treatment boat according to the present invention is characterized in that a protection film made of a thermal oxide film is directly formed on the surface of the boat.
- the fact that the protective film made of a thermal oxide film is directly formed on the surface of the boat means that the natural oxide film has been removed and that the thermal oxidation film has been formed on the Si surface of the boat.
- the thermal oxidation film is formed by heat-treating the Si boat in an atmosphere such as Ar to remove the natural oxide film, and then performing the heat treatment in an atmosphere containing oxygen.
- the resulting protective film is formed directly on the boat surface.
- the thermal oxide film formed in this way is dense and has few impurities and does not generate pinholes.
- a silicon boat is made of argon, hydrogen, or aluminum.
- the substrate is kept in a mixed gas of argon and hydrogen for more than 10 minutes at a temperature range of 100 ° C or more to remove the natural oxide film on the boat surface, and then heat treated in an oxygen atmosphere (vacuum).
- a protective film composed of an oxide film can be grown on the boat surface.
- the oxidizing speed of the natural oxide film may be low and the etching may become uneven. Also, in less than 10 minutes, the natural oxide film may not be sufficiently removed.
- the temperature is increased to 135 ° C. or higher, the silicon constituting the boat softens, and there is a problem in terms of the durability of facilities such as metal-contaminated furnaces. May occur. In addition, 120 minutes is enough, and if it is kept longer than this, productivity will decrease.
- the temperature at which the natural oxide film is removed is set to 110 ° C or more, migration of silicon atoms on the surface of the Si boat occurs, and the surface is smoothed and heat treatment is performed. This reduces the generation of particles at the time, and if the temperature is set to 1200 ° C or less, it is possible to keep the contamination from the furnace at a low level. Therefore, in the temperature range of 110 ° C to 120 ° C, 10 minutes to 120 ° C It is more preferable to remove the natural oxide film after staying for a minute.
- an oxide film having a thickness of 100 nm or more is grown as the protective film after the removal of the natural oxide film, it is possible to reliably prevent the formation of pinholes in the protective film. The possibility of the boat itself being contaminated with metal is greatly reduced.
- an oxide film having a thickness of 100 nm to 5 / im on the boat surface it is preferable to form an oxide film having a thickness of 100 nm to 5 / im on the boat surface by the above-mentioned dry baking.
- a protective film having a thickness in this range no pinholes are generated even when Ar annealing is performed as described above, and the film can be grown by a normal heat treatment step. .
- the natural oxide film is removed by heat treatment in an atmosphere gas such as hydrogen as described above, and then the target is formed.
- an atmosphere gas such as hydrogen as described above
- the protective film of the thermal oxide film formed according to the present invention is dense, has excellent adhesiveness, and is easy to control in thickness. There is no etching due to atmospheric gas such as Ar during processing. In addition, since the protective film itself does not contain impurities such as metal, and peeling and particles are unlikely to occur even after repeated use, the wafer may be contaminated by the protective film. There is no.
- a conventional Si boat is left in the air or cleaned to form a natural oxide film, but the natural oxide film has a thickness of about 1 nm.
- the natural oxide film since it has only a non-uniform thickness, and has a low density and poor adhesion, it cannot function as a protective film according to the present invention.
- the natural oxide film itself contains a metal as a polluting source.
- using the Si boat according to the present invention as described above Heat treatment of silicon wafers in an atmosphere of argon or a mixed gas of argon and hydrogen without metal contamination of silicon wafers. Can be heat treated.
- the wafer when the wafer is subjected to a high-temperature heat treatment in a mixed gas atmosphere of argon and hydrogen using the Si boat according to the present invention, if the hydrogen concentration is high, the heat on the surface of the boat is high. Since the rate at which the oxide film is etched increases, it is preferable to keep the hydrogen concentration low, especially below the explosion limit (less than 4%).
- the hydrogen concentration is 4% or less, the hydrogen partial pressure is low and the etching speed of the oxide film is slowed, so that the thermal oxide film according to the present invention is rapidly etched. However, it can function sufficiently as a protective film.
- Another advantage is that if the hydrogen concentration is low, special equipment such as explosion-proof equipment required for high-concentration hydrogen heat treatment is not required.
- the heat-treated wafer of the present invention has no metal contamination from the boat, so that even if an oxide film is grown on the wafer surface, for example, during the subsequent device process. An oxide film having a large thickness can be obtained.
- the protection film of the boat according to the present invention when the protection film of the boat according to the present invention is regenerated, it is very easy to remove the oxide film on the surface with hydrofluoric acid or the like and form a thermal oxide film again. Regeneration of the protective film can be performed.
- the thermal oxide film on the boat surface is gradually etched away.
- the protective film can be easily regenerated by the above-mentioned regenerating process.
- silicon wafers were heat-treated using a boat made of four types of pre-treated Si single-crystal silicon, and then the SPV method (surface photoelectromotive force method).
- the Si board used was chemically cleaned as a pretreatment.
- the thickness of the protective film formed on the surface of each Si boat was as follows. When forming a protective film on the surface of the Si boat, one silicon wafer is placed on the boat and the processing is performed. The thickness of the film formed on the silicon wafer is determined. Was measured by an ellipsometer, and this was defined as the thickness of the protective film formed on the boat surface.
- silicon wafers can be used. Also, using these boats, silicon wafers can be used.
- Heat treatment was performed at 60 ° C for 60 minutes in an Ar atmosphere, and the amount of Fe contaminated in the treated wafer was measured by SPV.
- the wafer used was a standard with a diameter of 200 mm P type 10 ⁇ cm.
- Figure 1 shows the measured Fe concentrations in wafers. For the concentration of Fe in each channel, use the bottle in 1 as is clear from the graph in the figure.
- the boat of (2) which had a high concentration of Fe and was baked only in an oxygen atmosphere was used. Even when used, the Fe concentration was higher than when using the 3 or boat, regardless of the thickness of the oxide film. This is thought to be due to the following reasons.
- pinholes will be formed in the oxide film on the boat surface that has been heat-treated with a wafer in an Ar atmosphere. This is similar to the phenomenon in which a silicon wafer on which an oxide film has been grown is treated in a high-temperature Ar atmosphere, resulting in pinholes.
- the causes of such pinholes are crystal defects in the Si crystal, which is the base material of the Si boat, the presence of an intermediate natural oxide film, or metal contamination. It is believed to be due to
- the boat itself may be contaminated, and if contaminated, the boat itself may be contaminated. May be a source of pollution.
- baking with oxygen alone is not sufficient for metal contamination in this way, it is considered that the effect of the protective film was better than that of (1) due to the attachment of the thermal oxide film.
- the heat treatment is first performed in a hydrogen atmosphere to remove the natural oxide film and eliminate the crystal defects existing in the base Si crystal. .
- a thermal oxide film containing no crystal defects in the Si boat grows.
- the oxide film acts as a protective film, and stains the boat. Dyeing, contamination, and contamination of the boat from the boat to the air are prevented. Therefore, it is considered that the wafer can be heat-treated with the least amount of metal contamination.
- the thermal oxide film is thick, it is difficult to peel off even if the film thickness is large, and it is possible to effectively prevent the generation of particles.
- the nitride film is not so hard, it does not damage the antenna.
- boat (2) first, heat treatment is performed under the same conditions as in boat (3) (baking in a hydrogen atmosphere at 1200 ° C for 60 minutes), followed by baking in a nitrogen atmosphere and nitriding. As a result, a thermal nitride film grows on the Si boat surface from which the natural oxide film has been removed.
- the nitride film treatment is performed without the above heat treatment in a hydrogen atmosphere, the nitride film will not be uniform, and there will be a thin film region.
- the subsequent heat treatment in an atmosphere of argon, hydrogen, or a mixture of these gases results in etching, which does not function as a protective film. It becomes bad.
- heat treatment in a hydrogen atmosphere and thermal nitride film growth are performed as in 4 ⁇ , and the natural oxide film is removed and an active Si surface is formed, resulting in a more uniform nitridation.
- the film grows and acts as a protective film.
- the nitride film is hard and may damage the surface of the wafer, and the nitride film peels off after repeated use. — It was found that noticules adhered to the c surface.
- the Si boat has a polycrystalline Si boat and a single-crystal Si boat.
- a single-crystal Si boat was used, but the present invention is effective for both. Needless to say, it is.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Formation Of Insulating Films (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/958,472 US20030196588A1 (en) | 2000-02-10 | 2001-02-09 | Silicon boat with protective film, method of manufacture thereof, and silicon wafer heat-treated using silicon boat |
EP01902833A EP1187189A1 (en) | 2000-02-10 | 2001-02-09 | Silicon boat with protective film, method of manufacture thereof, and silicon wafer heat-treated using silicon boat |
JP2001559052A JP4131105B2 (ja) | 2000-02-10 | 2001-02-09 | シリコンボートの製造方法 |
KR1020017012865A KR100749145B1 (ko) | 2000-02-10 | 2001-02-09 | 보호막 부착 실리콘 보트 및 그 제조방법, 그를 이용하여열처리된 실리콘 웨이퍼 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000033381 | 2000-02-10 | ||
JP2000-33381 | 2000-02-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001059826A1 true WO2001059826A1 (fr) | 2001-08-16 |
Family
ID=18557872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/000943 WO2001059826A1 (fr) | 2000-02-10 | 2001-02-09 | Nacelle de silicium a film de protection, procede de fabrication, et plaquette en silicium traitee thermiquement utilisant ladite nacelle |
Country Status (6)
Country | Link |
---|---|
US (1) | US20030196588A1 (ja) |
EP (1) | EP1187189A1 (ja) |
JP (1) | JP4131105B2 (ja) |
KR (1) | KR100749145B1 (ja) |
TW (1) | TW490769B (ja) |
WO (1) | WO2001059826A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005031843A1 (ja) * | 2003-09-29 | 2005-04-07 | Hitachi Kokusai Electric Inc. | 熱処理装置及び基板の製造方法 |
WO2009078121A1 (ja) * | 2007-12-19 | 2009-06-25 | Shin-Etsu Handotai Co., Ltd. | 半導体基板支持治具及びその製造方法 |
WO2009128225A1 (ja) * | 2008-04-17 | 2009-10-22 | 信越半導体株式会社 | 縦型熱処理用ボートおよびそれを用いたシリコンウエーハの熱処理方法 |
CN104078385A (zh) * | 2013-03-28 | 2014-10-01 | 三菱综合材料株式会社 | 硅部件及硅部件的制造方法 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20040188319A1 (en) * | 2003-03-28 | 2004-09-30 | Saint-Gobain Ceramics & Plastics, Inc. | Wafer carrier having improved processing characteristics |
US11164737B2 (en) * | 2017-08-30 | 2021-11-02 | Applied Materials, Inc. | Integrated epitaxy and preclean system |
KR102311907B1 (ko) * | 2018-12-26 | 2021-10-14 | 주식회사 테스 | 전극의 산화막 제거 및 전극의 식각을 위한 처리 방법 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH065530A (ja) * | 1992-06-17 | 1994-01-14 | Toshiba Corp | 熱処理炉ボート |
JPH06302532A (ja) * | 1993-04-13 | 1994-10-28 | Japan Energy Corp | 化合物半導体単結晶ウェハの熱処理方法及びそれに用いるウェハ支持具 |
EP0713245A2 (en) * | 1994-11-17 | 1996-05-22 | Shin-Etsu Handotai Company Limited | A heat treatment jig for semiconductor wafers and a method for treating a surface of the same |
JPH10242254A (ja) * | 1997-02-21 | 1998-09-11 | Ado Matsupu:Kk | 半導体製造用治具 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2573480B2 (ja) * | 1985-11-22 | 1997-01-22 | 東芝セラミックス 株式会社 | 半導体熱処理用治具 |
US5352636A (en) * | 1992-01-16 | 1994-10-04 | Applied Materials, Inc. | In situ method for cleaning silicon surface and forming layer thereon in same chamber |
CN1077283C (zh) * | 1996-08-23 | 2002-01-02 | 李韫言 | 一种微细加工的热式流量传感器及其制造方法 |
-
2001
- 2001-02-09 JP JP2001559052A patent/JP4131105B2/ja not_active Expired - Lifetime
- 2001-02-09 EP EP01902833A patent/EP1187189A1/en not_active Withdrawn
- 2001-02-09 US US09/958,472 patent/US20030196588A1/en not_active Abandoned
- 2001-02-09 WO PCT/JP2001/000943 patent/WO2001059826A1/ja not_active Application Discontinuation
- 2001-02-09 KR KR1020017012865A patent/KR100749145B1/ko active IP Right Grant
- 2001-02-09 TW TW090103061A patent/TW490769B/zh active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH065530A (ja) * | 1992-06-17 | 1994-01-14 | Toshiba Corp | 熱処理炉ボート |
JPH06302532A (ja) * | 1993-04-13 | 1994-10-28 | Japan Energy Corp | 化合物半導体単結晶ウェハの熱処理方法及びそれに用いるウェハ支持具 |
EP0713245A2 (en) * | 1994-11-17 | 1996-05-22 | Shin-Etsu Handotai Company Limited | A heat treatment jig for semiconductor wafers and a method for treating a surface of the same |
JPH10242254A (ja) * | 1997-02-21 | 1998-09-11 | Ado Matsupu:Kk | 半導体製造用治具 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005031843A1 (ja) * | 2003-09-29 | 2005-04-07 | Hitachi Kokusai Electric Inc. | 熱処理装置及び基板の製造方法 |
WO2009078121A1 (ja) * | 2007-12-19 | 2009-06-25 | Shin-Etsu Handotai Co., Ltd. | 半導体基板支持治具及びその製造方法 |
JP2009152283A (ja) * | 2007-12-19 | 2009-07-09 | Shin Etsu Handotai Co Ltd | 半導体基板支持治具及びその製造方法。 |
WO2009128225A1 (ja) * | 2008-04-17 | 2009-10-22 | 信越半導体株式会社 | 縦型熱処理用ボートおよびそれを用いたシリコンウエーハの熱処理方法 |
JP2009260055A (ja) * | 2008-04-17 | 2009-11-05 | Shin Etsu Handotai Co Ltd | 縦型熱処理用ボートおよびそれを用いたシリコンウエーハの熱処理方法 |
US8287649B2 (en) | 2008-04-17 | 2012-10-16 | Shin-Etsu Handotai Co., Ltd. | Vertical boat for heat treatment and method for heat treatment of silicon wafer using the same |
CN104078385A (zh) * | 2013-03-28 | 2014-10-01 | 三菱综合材料株式会社 | 硅部件及硅部件的制造方法 |
JP2014209620A (ja) * | 2013-03-28 | 2014-11-06 | 三菱マテリアル株式会社 | シリコン部材及びシリコン部材の製造方法 |
US10770285B2 (en) | 2013-03-28 | 2020-09-08 | Mitsubishi Materials Corporation | Silicon member and method of producing the same |
Also Published As
Publication number | Publication date |
---|---|
KR100749145B1 (ko) | 2007-08-14 |
JP4131105B2 (ja) | 2008-08-13 |
KR20010112414A (ko) | 2001-12-20 |
TW490769B (en) | 2002-06-11 |
EP1187189A1 (en) | 2002-03-13 |
US20030196588A1 (en) | 2003-10-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR101537960B1 (ko) | 종형 열처리용 보트 및 이를 이용한 실리콘 웨이퍼의 열처리 방법 | |
WO2001059826A1 (fr) | Nacelle de silicium a film de protection, procede de fabrication, et plaquette en silicium traitee thermiquement utilisant ladite nacelle | |
JP4998246B2 (ja) | 半導体基板支持治具及びその製造方法。 | |
JP3285723B2 (ja) | 半導体熱処理用治具及びその表面処理方法 | |
JPH118216A (ja) | 半導体製造用部材の洗浄方法 | |
JP4290187B2 (ja) | 半導体ウェーハ熱処理用ボートの表面清浄化方法 | |
JP4123861B2 (ja) | 半導体基板の製造方法 | |
JP2907095B2 (ja) | 半導体装置の製造方法 | |
JP4259881B2 (ja) | シリコンウエハの清浄化方法 | |
CN117043387A (zh) | 高温腔室及腔室部件清洁和维护方法及设备 | |
US20060148249A1 (en) | Method of eliminating boron contamination in annealed wafer | |
JP2008227060A (ja) | アニールウエハの製造方法 | |
JP2002037684A (ja) | 炭化ケイ素被覆黒鉛部材の再生方法及びそれによる炭化ケイ素被覆黒鉛部材 | |
WO1999050895A1 (fr) | Procede de fabrication de plaquettes a semi-conducteur | |
JP4029378B2 (ja) | アニールウェーハの製造方法 | |
KR100423754B1 (ko) | 실리콘 웨이퍼의 고온 열처리 방법 | |
JP3036366B2 (ja) | 半導体シリコンウェハの処理方法 | |
JP2005197534A (ja) | 熱処理用治具の表面保護膜形成方法及び熱処理用治具 | |
JP2011009597A (ja) | 熱処理用治具の清浄化方法 | |
KR100734224B1 (ko) | 퍼니스 인-시츄 클리닝 방법 | |
JPH0529323A (ja) | 半導体基板及びその製造方法 | |
KR20230016383A (ko) | 종형 열처리용 보트 및 이를 이용한 실리콘 웨이퍼의 열처리 방법 | |
EP0525455A2 (en) | Extrinsic gettering for a semiconductor substrate | |
JP2003277933A (ja) | 炭化ケイ素被覆部材の純化方法 | |
JP2002184961A (ja) | Soi基板の熱処理方法およびsoi基板 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): JP KR SG US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR |
|
ENP | Entry into the national phase |
Ref country code: JP Ref document number: 2001 559052 Kind code of ref document: A Format of ref document f/p: F |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020017012865 Country of ref document: KR |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2001902833 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1020017012865 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 2001902833 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09958472 Country of ref document: US |
|
WWW | Wipo information: withdrawn in national office |
Ref document number: 2001902833 Country of ref document: EP |