KR930001377A - MOS device and its manufacturing method - Google Patents

MOS device and its manufacturing method Download PDF

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Publication number
KR930001377A
KR930001377A KR1019910010229A KR910010229A KR930001377A KR 930001377 A KR930001377 A KR 930001377A KR 1019910010229 A KR1019910010229 A KR 1019910010229A KR 910010229 A KR910010229 A KR 910010229A KR 930001377 A KR930001377 A KR 930001377A
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South Korea
Prior art keywords
semiconductor device
oxide film
region
forming
single crystal
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KR1019910010229A
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Korean (ko)
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KR0174998B1 (en
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강석희
김형기
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김광호
삼성전자 주식회사
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/66Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/68Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
    • H01L29/76Unipolar devices, e.g. field effect transistors
    • H01L29/772Field effect transistors
    • H01L29/78Field effect transistors with field effect produced by an insulated gate
    • H01L29/7833Field effect transistors with field effect produced by an insulated gate with lightly doped drain or source extension, e.g. LDD MOSFET's; DDD MOSFET's
    • H01L29/7834Field effect transistors with field effect produced by an insulated gate with lightly doped drain or source extension, e.g. LDD MOSFET's; DDD MOSFET's with a non-planar structure, e.g. the gate or the source or the drain being non-planar
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
    • H01L29/66Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/66007Multistep manufacturing processes
    • H01L29/66075Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
    • H01L29/66227Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
    • H01L29/66409Unipolar field-effect transistors
    • H01L29/66477Unipolar field-effect transistors with an insulated gate, i.e. MISFET
    • H01L29/66568Lateral single gate silicon transistors
    • H01L29/66575Lateral single gate silicon transistors where the source and drain or source and drain extensions are self-aligned to the sides of the gate
    • H01L29/6659Lateral single gate silicon transistors where the source and drain or source and drain extensions are self-aligned to the sides of the gate with both lightly doped source and drain extensions and source and drain self-aligned to the sides of the gate, e.g. lightly doped drain [LDD] MOSFET, double diffused drain [DDD] MOSFET

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Ceramic Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulated Gate Type Field-Effect Transistor (AREA)

Abstract

내용 없음No content

Description

MOS 디바이스 및 그 제조방법MOS device and its manufacturing method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 종래의 MOSFET 구조를 나타낸 도면.1 is a diagram showing a conventional MOSFET structure.

제2도는 본 발명에 의한 MOSFET 구조를 나타낸 도면.2 is a diagram showing a MOSFET structure according to the present invention.

제3a도∼제3d도는 본 발명에 의한 MOSFET의 제조방법을 나타낸 공정 순서도.3A to 3D are process flowcharts showing a method for manufacturing a MOSFET according to the present invention.

Claims (10)

제1전도형의 반도체기판의 표면근방에 상기 제1전도형과 반대형인 제2전도형의 불순물 확산영역으로 형성된 소스 및 드레인영역; 상기 소스영역 및 드레인영역 사이에 한정된 채널영역; 상기 채널영역상에 게이트절연막을 개재하여 형성된 게이트전극을 구비한 MOS 반도체장치에 있어서, MOSFET는 상기 소스 및 드레인영역 아래의 반도체기판에 각각 형성된 확산저지막을 더 구비한 것을 특징으로 하는 MOS 반도체장치.A source and a drain region formed near the surface of the first conductive semiconductor substrate, the impurity diffusion regions of the second conductive type opposite to the first conductive type; A channel region defined between the source region and the drain region; A MOS semiconductor device having a gate electrode formed on the channel region via a gate insulating film, wherein the MOSFET further comprises a diffusion blocking film formed on a semiconductor substrate under the source and drain regions, respectively. 제1항에 있어서, 상기 소스 및 드레인영역과, 채널영역은 상기 확산저지막상에 선택적으로 에피택셜 성장된 단결정층내에 형성된 것을 특징으로 하는 MOS 반도체장치.The MOS semiconductor device according to claim 1, wherein the source and drain regions and the channel region are formed in a single crystal layer selectively epitaxially grown on the diffusion blocking film. 제1항에 있어서, 상기 확산저지막은 실리콘 산화막인 것을 특징으로 하는 MOS 반도체장치.The MOS semiconductor device according to claim 1, wherein said diffusion blocking film is a silicon oxide film. 제1항에 있어서, 상기 실리콘 산화막은 1000∼2000Å의 두께로 형성된 것을 특징으로 하는 MOS 반도체장치.The MOS semiconductor device according to claim 1, wherein the silicon oxide film is formed to a thickness of 1000 to 2000 GPa. 제1항에 있어서, 상기 소스 및 디바이스은 LDD 구조인 것을 특징으로 하는 MOS 반도체장치.The MOS semiconductor device of claim 1, wherein the source and the device have an LDD structure. 제2항에 있어서, 상기 소스 및 드레인영역의 확산접합 깊이는 상기 확산저지막상에 형성되는 상기 단결정층의 두께로 조절하는 것을 특징으로 하는 MOS 반도체장치.The MOS semiconductor device according to claim 2, wherein the diffusion junction depth of the source and drain regions is controlled by the thickness of the single crystal layer formed on the diffusion blocking film. 확산접합 아래에 확산저지막을 가지는 MOS 반도체장치의 제조방법에 있어서, 제1전도형의 반도체기판에 필드산화막을 형성하여 액티브영역을 한정하고, 이 액티브영역상에 박막의 실리콘산화막을 형성하는 공정; 상기 실리콘산화막에 개구를 형성하고 이 개구에 노출된 반도체기판을 선택적으로 에피택셜 성장시켜 상기 실리콘산화막 상에 단결정층을 형성하는 공정; 상기 개구에 오버랩되는 단결정층상에 게이트산화막 및 게이트전극을 형성하는 공정; 및 상기 게이트전극에 셀프얼라인되게 상기 단결정층의 표면근방에 상기 제1전도형과는 반대형인 제2전도형의 불순물 확산영역을 형성하는 공정으로 구비한 것을 특징으로 하는 MOS 반도체장치의 제조방법.A method of manufacturing a MOS semiconductor device having a diffusion blocking film under a diffusion junction, comprising: forming a field oxide film on a first conductive semiconductor substrate to define an active region, and forming a thin silicon oxide film on the active region; Forming an opening in the silicon oxide film and selectively epitaxially growing a semiconductor substrate exposed to the opening to form a single crystal layer on the silicon oxide film; Forming a gate oxide film and a gate electrode on the single crystal layer overlapping the opening; And forming an impurity diffusion region of a second conductivity type opposite to the first conductivity type near the surface of the single crystal layer so as to be self-aligned with the gate electrode. . 제7항에 있어서, 상기 제2전도형인 불순물 확산영역을 형성한 후, 상기 게이트전극 측벽에 게이트측벽 스페이서를 형성한 후, 이 게이트측벽 스페이서에 셀프얼라인 되게 상기 단결정층의 표면근방에 상기 제2전도형의 불순물 확산영역보다 불순물농도가 더 강한 고농도의 불순물 확산영역을 형성하는 공정을 더 구비하는 것을 특징으로 하는 MOS 반도체장치의 제조방법.8. The method of claim 7, wherein after forming the second conductivity type impurity diffusion region, a gate sidewall spacer is formed on the sidewall of the gate electrode, and the gate is formed near the surface of the single crystal layer to be self-aligned to the gate sidewall spacer. A method of manufacturing a MOS semiconductor device, further comprising the step of forming a high concentration impurity diffusion region having a higher impurity concentration than a two conductivity type impurity diffusion region. 제8항에 있어서, 상기 제1전도형은 P형이고 상기 제2전도형은 n형인 것을 특징으로 하는 반도체장치의 제조방법.10. The method of claim 8, wherein the first conductivity type is P type and the second conductivity type is n type. 제7항에 있어서, 상기 실리콘산화막은 약 1000∼2000Å의 두께로 형성하는 것을 특징으로 하는 반도체장치의 제조방법.8. The method of claim 7, wherein the silicon oxide film is formed to a thickness of about 1000 to 2000 microns. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910010229A 1991-06-19 1991-06-19 MOS device and its manufacturing method KR0174998B1 (en)

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KR1019910010229A KR0174998B1 (en) 1991-06-19 1991-06-19 MOS device and its manufacturing method

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KR930001377A true KR930001377A (en) 1993-01-16
KR0174998B1 KR0174998B1 (en) 1999-04-01

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