CN1144397A - Method of manufacturing semiconductor device - Google Patents

Method of manufacturing semiconductor device Download PDF

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Publication number
CN1144397A
CN1144397A CN96107491A CN96107491A CN1144397A CN 1144397 A CN1144397 A CN 1144397A CN 96107491 A CN96107491 A CN 96107491A CN 96107491 A CN96107491 A CN 96107491A CN 1144397 A CN1144397 A CN 1144397A
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China
Prior art keywords
amorphous silicon
film
silicon substrate
silicon film
deposit
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CN96107491A
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Chinese (zh)
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CN1083158C (en
Inventor
权五成
金辰泰
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SK Hynix Inc
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Hyundai Electronics Industries Co Ltd
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Publication of CN1144397A publication Critical patent/CN1144397A/en
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Publication of CN1083158C publication Critical patent/CN1083158C/en
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/02104Forming layers
    • H01L21/02365Forming inorganic semiconducting materials on a substrate
    • H01L21/02656Special treatments
    • H01L21/02664Aftertreatments
    • H01L21/02667Crystallisation or recrystallisation of non-monocrystalline semiconductor materials, e.g. regrowth
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/02104Forming layers
    • H01L21/02365Forming inorganic semiconducting materials on a substrate
    • H01L21/02518Deposited layers
    • H01L21/02521Materials
    • H01L21/02524Group 14 semiconducting materials
    • H01L21/02532Silicon, silicon germanium, germanium
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/02104Forming layers
    • H01L21/02365Forming inorganic semiconducting materials on a substrate
    • H01L21/02612Formation types
    • H01L21/02617Deposition types
    • H01L21/0262Reduction or decomposition of gaseous compounds, e.g. CVD
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04Manufacture 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
    • H01L21/18Manufacture 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
    • H01L21/28Manufacture of electrodes on semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/268
    • H01L21/283Deposition of conductive or insulating materials for electrodes conducting electric current
    • H01L21/285Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation
    • H01L21/28506Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers
    • H01L21/28512Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table
    • H01L21/28525Deposition of conductive or insulating materials for electrodes conducting electric current from a gas or vapour, e.g. condensation of conductive layers on semiconductor bodies comprising elements of Group IV of the Periodic Table the conductive layers comprising semiconducting material

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Recrystallisation Techniques (AREA)
  • Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
  • Electrodes Of Semiconductors (AREA)

Abstract

The invention discloses a method for producing a semiconductor device which contains a polysilicon film. With the method, a natural filam and contaminant can be removed; besides, big grains can be formed by silicon ions injection and anneal. The invention also discloses another method, in which the natural filam and the contaminant are removed after cleaning treatment by CF <4> plasma and the natural filam is prevented from regrowing; then a silicon bulk is arranged into an amorphous silicon film deposition tube to be filled with inert gas.

Description

Make the method for semiconductor device
The present invention relates to a kind of method of making semiconductor device, particularly relate to the method that forms polysilicon film, this method can be removed natural oxide film and pollutant, and by injecting silicon ion and the big crystal grain of annealing formation.
In making the semiconductor device process, extensively adopt polysilicon film as electrically conductive film.With reference now to Figure 1A and Figure 1B,, the method for polysilicon film is made in expression according to prior art.
Figure 1A and Figure 1B cutaway view represent to make a kind of method of conventional polysilicon film.
Figure 1A represents, dielectric film (3) is formed on have the interface silicon substrate (1) of (2).Utilize contact hole mask to handle by photo etching, make dielectric film (3) form figure, the silicon substrate (1) of interface (2) is come out, thus, form contact hole (4), usually, natural oxide film (10) is grown on the silicon substrate (1) that exposes.
Figure 1B represents, in order to remove autoxidation film (10), utilizes BOE (buffer oxide corrosive agent) or HF chemicals to carry out wet clean process.Deposit polysilicon film (5) in 300 ℃ deposit pipe then is so that contact with interface (2).But the crystal grain (A) that is formed polysilicon film (5) by above-mentioned technology is the particulate of 0.1-0.5 μ m, so there is the shortcoming that reduces electron mobility and conductivity.And because remaining natural oxide film (10) increases contact resistance.
The purpose of this invention is to provide the method that a kind of manufacturing contains the semiconductor device of polysilicon film, this method can be removed natural oxide film and pollutant, and forms big crystal grain by injecting silicon ion and annealing.Another object of the present invention provides a kind of method, at CF 4After plasma cleans is handled, can remove natural oxide film and prevent the regrowth natural oxide film, then the amorphous silicon film deposit pipe that silicon substrate is packed into and will be flow through inert gas.
In order to achieve the above object, the present invention includes the following step:
On contain the silicon substrate in interface, form dielectric film;
Dielectric film is carved into figure,, thus, forms contact hole up to the silicon substrate that exposes the interface;
Then, carry out wet clean process and plasma treatment, so that remove natural oxidizing layer and pollutant above the silicon substrate that exposes;
Silicon substrate is packed in the amorphous silicon film deposit pipe that will lead to inert gas;
Form amorphous silicon film at predetermined temperature;
With predetermined close and energy, silicon ion is injected in the amorphous silicon film;
The described amorphous silicon film of heat treatment is so that form polysilicon film.
For further understanding feature of the present invention and purpose, carry out detailed narration below in conjunction with accompanying drawing, wherein:
Figure 1A and Figure 1B are the cutaway views of semiconductor device, are used to explain the method that forms polysilicon film according to prior art;
Fig. 2 A is the cutaway view of semiconductor device to Fig. 2 D, is used to represent to form according to the present invention the method for polysilicon film.
For above-mentioned several accompanying drawings, similar reference number is represented similar part.
Fig. 2 A is the cutaway view of semiconductor device to Fig. 2 D, is used to represent to form according to the present invention the method for polysilicon film.
Fig. 2 A represents, dielectric film is formed on has the interface above the silicon substrate (1) of (2).Utilize contact hole mask by photoetching, dielectric film (3) is carved into figure, the silicon substrate (1) of interface (2) is exposed, thus, form contact hole (4).Usually, natural oxide film (10) is grown on the silicon substrate (1) that exposes.
Fig. 2 B represents, utilizes BOE or HF chemicals to carry out wet clean process, so that remove natural oxide film (10), then utilizes CF 4Gas carries out plasma treatment, and the time is 20 to 40 seconds.Then, silicon substrate (1) is packed in the amorphous silicon film deposit pipe, as nitrogen (N 2) in the such inert gas input pipe of gas, so that reduce concentration of oxygen.After plasma treatment, utilize SH at 560 ℃ to 580 ℃ 4The gas thermal decomposition, by LPCVD (low pressure chemical vapor deposition), the amorphous silicon film (6) of deposit 1000 to 3000 on the structure of gained.The CF that in above-mentioned technology, carries out 4Plasma treatment is not only removed natural oxide film residual after wet clean process, and removes and resemble oxygen (O 2) or hydrogen (H 2) pollutant of such nuclear as the polysilicon film grain growth.In the process of deposit pipe that silicon substrate is packed into, utilize nitrogen (N 2) but the air-blowing oxygen concentration of washing in the holding tube is very low, so that during the device silicon substrate, the growth of restriction natural oxide film.
Fig. 2 C represents, uses predetermined power about 10 15Cm -2The silicon ion of magnitude is injected in the amorphous silicon film (6).
Fig. 2 D represents, with 500 ℃ to 700 ℃ heat treatment amorphous silicon films (6), thus, makes it to become polysilicon film (6A) in nitrogen.Therefore, pass through CF 4Plasma treatment is removed the pollutant as grain growth nuclear fully, has improved the growth of crystal grain (B).And, because being injected into amorphous silicon film, silicon ion causes interior can increasing, make the very big of crystal grain (B) change.When utilizing said method, the crystal grain that may make growth is greater than 1 micron.
As above detailed narration, can reach following purpose according to the present invention, before the deposition of amorphous silicon film, can reduce contact resistance by removing natural oxide film fully, by silicon (ion) inject and again crystallization make the crystallite dimension maximum, increased electron mobility and conductivity.
To aforementioned invention, though narrate with the preferred embodiment with certain particularity, it only illustrates principle of the present invention.Should understand, the present invention is not subjected to the restriction of the preferred embodiment of disclosed herein and explanation.Under situation about not departing from the scope of the present invention with spirit, various changes can be made, but these variations all are to belong to other embodiments of the invention.

Claims (47)

1. a method of making semiconductor device comprises the following steps:
On being arranged, the silicon substrate in interface forms dielectric film;
Said dielectric film is formed figure,, therefore, form contact hole up to the said silicon substrate that exposes said interface;
Then, carry out wet clean process and plasma treatment, remove said natural oxidizing layer and the pollutant that exposes on the silicon substrate;
Said silicon substrate is packed in the amorphous silicon film deposit pipe that will import inert gas;
Form amorphous silicon film;
Silicon ion is injected said amorphous silicon film; And
The described amorphous silicon film of heat treatment forms polysilicon film.
2. according to the method for claim 1, any that it is characterized in that utilizing BOE and HF chemicals carries out wet clean process.
3. according to the method for claim 1, it is characterized in that utilizing CF 4Gas carries out plasma treatment, and the time is 20 to 40 seconds.
4. according to the method for claim 1, it is characterized in that said silicon substrate is packed in the said amorphous silicon film deposit pipe, in the inert gas input pipe, therefore, the restriction oxygen concentration.
5. according to the method for claim 1, it is characterized in that,, utilize SH at 560 to 580 ℃ by LPCVD technology 4The gas thermal decomposition, the said amorphous silicon film of deposit.
6. according to the method for claim 1, it is characterized in that the said amorphous silicon film of deposit, thickness are 1000 to 3000 .
7. according to the method for claim 1, it is characterized in that, with about 10 15Cm -2The dosage of magnitude injects said silicon ion.
8. according to the method for claim 1, it is characterized in that, in nitrogen,, make it to change into polysilicon thus with 500 to 700 ℃ of said amorphous silicon films of heat treatment.
9. a method of making semiconductor device comprises the following steps:
Have on the silicon substrate in interface, forming dielectric film;
Make said dielectric film form figure,, thus, form contact hole up to the said silicon substrate that exposes said interface;
Then, carry out wet clean process and plasma treatment, remove natural oxidizing layer and pollutant above the said silicon substrate that exposes;
Form amorphous silicon film;
The said amorphous silicon film of heat treatment forms polysilicon film.
10. according to the method for claim 9, it is characterized in that any that utilizes BOE and HF chemicals carries out wet processed.
11. the method according to claim 9 is characterized in that, utilizes CF 4Gas carries out plasma treatment, and the time is 20 to 40 seconds.
12. the method according to claim 9 is characterized in that, by LPCVD technology, by decomposing SH at 560 ℃ to 580 ℃ 4The said amorphous silicon film of gas deposit.
13. the method according to claim 9 is characterized in that, the said amorphous silicon film of deposit, thickness are 1000 to 3000 .
14. the method according to claim 9 is characterized in that, with 500 ℃ to the 700 ℃ said amorphous silicon films of heat treatment, thus, makes it to be transformed into polysilicon film in nitrogen.
15. a method of making semiconductor device comprises the following steps:
Have on the silicon substrate in interface, forming dielectric film;
Make said dielectric film form figure,, thus, form contact hole up to the said silicon substrate that exposes said interface;
Then, carry out wet clean process and plasma treatment, remove natural oxidizing layer and pollutant above the said silicon substrate that exposes;
Said silicon substrate is packed in the amorphous silicon film deposit pipe that will lead to inert gas;
Form amorphous silicon film;
The said amorphous silicon film of heat treatment is to form polysilicon film.
16. the method according to claim 15 is characterized in that, utilizes any of chemicals of BOE and HF to carry out wet clean process.
17. the method according to claim 15 is characterized in that, utilizes CF 4Gas carries out plasma treatment, and the time is 20 to 40 seconds.
18. the method according to claim 15 is characterized in that, said silicon substrate is packed into to feed in the said amorphous silicon film deposit pipe of inert gas, therefore, and the restriction oxygen concentration.
19. the method according to claim 15 is characterized in that, by LPCVD technology, is 560 ℃ of SiH to 580 ℃ of following thermal decompositions by temperature 4Gas, the said amorphous silicon film of deposit.
20. the method according to claim 15 is characterized in that, the said amorphous silicon film of deposit, thickness are 1000 to 3000 .
21. the method according to claim 15 is characterized in that, with 500 ℃ to the 700 ℃ said amorphous silicon films of heat treatment, thus, makes it to change into polysilicon in nitrogen.
22. a method of making semiconductor device comprises the following steps:
Form dielectric film having on the silicon substrate in interface;
Make said dielectric film form figure,, thus, form contact hole up to the said silicon substrate that exposes said interface;
Then, carry out wet clean process and plasma treatment, so that remove natural oxidizing layer and pollutant on the said silicon substrate that exposes;
Form amorphous silicon film;
Silicon ion is injected into said amorphous silicon film;
The said amorphous silicon film of heat treatment is so that form polysilicon film.
23. the method according to claim 22 is characterized in that, any carries out wet clean process to utilize BOE and HF.
24. the method according to claim 22 is characterized in that, utilizes CF 4Gas carries out plasma treatment, and the time is 20 to 40 seconds.
25. the method according to claim 22 is characterized in that, by at 560 ℃ to 580 ℃ thermal decomposition SiH 4LPCVD technology, the said amorphous silicon film of deposit.
26. the method according to claim 22 is characterized in that, the said amorphous silicon film of deposit, thickness are 1000 to 3000 .
27. the method according to claim 22 is characterized in that, with about 10 15Cm -2The dosage of the order of magnitude injects said silicon ion.
28. the method according to claim 22 is characterized in that, with 500 to 700 ℃ of said amorphous silicon films of heat treatment, thus, makes it to change into polysilicon film in nitrogen.
29. a method of making semiconductor device comprises the following steps:
Form dielectric film having on the silicon substrate in interface;
Make said dielectric film form figure,, thus, form contact hole up to the said silicon substrate that exposes said interface;
Then, carry out wet clean process, so that remove natural oxidizing layer and pollutant above the said silicon substrate that exposes;
Said silicon substrate is packed in the amorphous silicon film deposit pipe that will lead to inert gas;
Form amorphous silicon film;
Silicon ion is injected in the said amorphous silicon film;
The said amorphous silicon film of heat treatment is so that form polysilicon film.
30. the method according to claim 29 is characterized in that, utilizes any of BOE and HF chemicals, carries out wet clean process.
31. the method according to claim 29 is characterized in that, said silicon substrate packed into leads in the said amorphous silicon film deposit pipe of inert gas, thus, the restriction oxygen concentration.
32. the method according to claim 29 is characterized in that, by LPCVD technology, utilizes at 560 ℃ to 580 ℃ following thermal decomposition SiH 4The said amorphous silicon film of deposit.
33. the method according to claim 29 is characterized in that, the said amorphous silicon film of deposit, thickness are 1000 to 3000 .
34. the method according to claim 29 is characterized in that, with 10 15Cm -2The dosage of the order of magnitude injects said silicon ion.
35. the method according to claim 29 is characterized in that, in nitrogen, with 500 to 700 ℃ of said amorphous silicon films of heat treatment, thus, makes it to change into polysilicon film.
36. a method of making semiconductor device comprises the following steps:
Form dielectric film having on the silicon substrate in interface;
Make said dielectric film form figure,, thus, form contact hole up to the said silicon substrate that exposes said interface;
Carry out wet clean process, so that remove natural oxidizing layer and pollutant above the said silicon substrate that exposes;
Said silicon substrate is packed in the amorphous silicon film deposit pipe that will lead to inert gas;
Form amorphous silicon film;
The said amorphous silicon film of heat treatment is so that form polysilicon film.
37. the method according to claim 36 is characterized in that, utilizes any of BOE and HF chemicals, carries out wet clean process.
38. the method according to claim 36 is characterized in that, said silicon substrate is packed into lead in the said amorphous silicon film deposit pipe of inert gas, therefore limits concentration of oxygen.
39. the method according to claim 36 is characterized in that, by LPCVD technology at 560 ℃ to 580 ℃ thermal decomposition SiH 4, the said amorphous silicon film of deposit.
40. the method according to claim 36 is characterized in that, the said amorphous silicon film of deposit, thickness are 1000 to 3000 .
41., in nitrogen,, make it to change into polysilicon film with 500 to 700 ℃ of said amorphous silicon films of heat treatment according to the method for claim 36.
42. a method of making semiconductor device comprises the following steps:
Form dielectric film having on the silicon substrate in interface;
Make said dielectric film form figure, the said silicon substrate up to said interface is exposed, and thus, forms contact hole;
Carry out wet clean process, remove natural oxide film and pollutant on the said silicon substrate that exposes;
Form amorphous silicon film;
Silicon ion is injected in the amorphous silicon film;
The said amorphous silicon film of heat treatment is so that form polysilicon film.
43. according to the method for claim 42, utilize any of BOE and HF chemicals, carry out wet clean process.
44. the method according to claim 42 is characterized in that, by LPCVD technology, utilizes at 560 ℃ to 580 ℃ thermal decomposition SiH 4Gas, the said amorphous silicon film of deposit.
45. the method according to claim 42 is characterized in that, the said amorphous silicon film of deposit, thickness are 1000 to 3000 .
46. the method according to claim 42 is characterized in that, with about 10 15Cm -2The dosage of the order of magnitude injects said silicon ion.
47. the method according to claim 42 is characterized in that, at 500 ℃ to the 700 ℃ said amorphous silicon films of heat treatment, thus, makes it to change into polysilicon in nitrogen.
CN96107491A 1995-05-04 1996-05-04 Method of manufacturing semiconductor device Expired - Fee Related CN1083158C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10983/95 1995-05-04
KR1019950010983A KR100208439B1 (en) 1995-05-04 1995-05-04 Method of forming polysilicon layer in semiconductor device

Publications (2)

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CN1144397A true CN1144397A (en) 1997-03-05
CN1083158C CN1083158C (en) 2002-04-17

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JP (1) JPH08306642A (en)
KR (1) KR100208439B1 (en)
CN (1) CN1083158C (en)
DE (1) DE19617833A1 (en)
GB (1) GB2300517B (en)
TW (1) TW291572B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6107192A (en) * 1997-12-30 2000-08-22 Applied Materials, Inc. Reactive preclean prior to metallization for sub-quarter micron application
JP2010123866A (en) 2008-11-21 2010-06-03 Sharp Corp Semiconductor device and method of manufacturing the same
KR102178535B1 (en) 2014-02-19 2020-11-13 삼성전자주식회사 Methods of manufacturing semiconductor devices
CN106571289B (en) * 2015-10-13 2020-01-03 中芯国际集成电路制造(上海)有限公司 Semiconductor device, preparation method thereof and electronic device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1239706A (en) * 1984-11-26 1988-07-26 Hisao Hayashi Method of forming a thin semiconductor film
JPH0322527A (en) * 1989-06-20 1991-01-30 Fujitsu Ltd Manufacture of semiconductor device
JPH0350823A (en) * 1989-07-19 1991-03-05 Nec Corp Manufacture of semiconductor device
JP3125302B2 (en) * 1990-11-21 2001-01-15 セイコーエプソン株式会社 Method for manufacturing semiconductor device
JPH05275365A (en) * 1992-03-30 1993-10-22 Oki Electric Ind Co Ltd Manufacture of semiconductor element
US5266514A (en) * 1992-12-21 1993-11-30 Industrial Technology Research Institute Method for producing a roughened surface capacitor
JPH0729852A (en) * 1993-07-07 1995-01-31 Kawasaki Steel Corp Fabrication of semiconductor device
JP2697645B2 (en) * 1994-10-31 1998-01-14 日本電気株式会社 Method for manufacturing semiconductor device

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Publication number Publication date
DE19617833A1 (en) 1996-11-07
KR100208439B1 (en) 1999-07-15
JPH08306642A (en) 1996-11-22
GB2300517B (en) 1999-07-28
GB9608822D0 (en) 1996-07-03
GB2300517A (en) 1996-11-06
CN1083158C (en) 2002-04-17
TW291572B (en) 1996-11-21

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