JP2008071890A - 半導体装置及びその製造方法 - Google Patents
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 120
- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000000758 substrate Substances 0.000 claims abstract description 56
- 238000002955 isolation Methods 0.000 claims abstract description 48
- 229910052581 Si3N4 Inorganic materials 0.000 claims abstract description 32
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000009792 diffusion process Methods 0.000 claims abstract description 31
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 29
- 239000010703 silicon Substances 0.000 claims abstract description 28
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 25
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052814 silicon oxide Inorganic materials 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 13
- 229910021332 silicide Inorganic materials 0.000 claims abstract description 12
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims abstract description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 23
- 238000005530 etching Methods 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- RUFLMLWJRZAWLJ-UHFFFAOYSA-N nickel silicide Chemical compound [Ni]=[Si]=[Ni] RUFLMLWJRZAWLJ-UHFFFAOYSA-N 0.000 claims description 7
- 229910021334 nickel silicide Inorganic materials 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims description 6
- 229910052732 germanium Inorganic materials 0.000 claims description 5
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- ZXEYZECDXFPJRJ-UHFFFAOYSA-N $l^{3}-silane;platinum Chemical compound [SiH3].[Pt] ZXEYZECDXFPJRJ-UHFFFAOYSA-N 0.000 claims 1
- 229910021339 platinum silicide Inorganic materials 0.000 claims 1
- 230000003071 parasitic effect Effects 0.000 abstract description 4
- 230000001629 suppression Effects 0.000 abstract description 2
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 45
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 23
- PEUPIGGLJVUNEU-UHFFFAOYSA-N nickel silicon Chemical compound [Si].[Ni] PEUPIGGLJVUNEU-UHFFFAOYSA-N 0.000 description 15
- 229910052759 nickel Inorganic materials 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 230000002411 adverse Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005468 ion implantation Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910018098 Ni-Si Inorganic materials 0.000 description 1
- 229910018529 Ni—Si Inorganic materials 0.000 description 1
- 210000000746 body region Anatomy 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000059 patterning Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep 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
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/665—Unipolar field-effect transistors with an insulated gate, i.e. MISFET using self aligned silicidation, i.e. salicide
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- 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
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/76224—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials
- H01L21/76232—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using trench refilling with dielectric materials of trenches having a shape other than rectangular or V-shape, e.g. rounded corners, oblique or rounded trench walls
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
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- H01L29/66227—Multistep 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
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66568—Lateral single gate silicon transistors
- H01L29/66613—Lateral single gate silicon transistors with a gate recessing step, e.g. using local oxidation
- H01L29/66628—Lateral single gate silicon transistors with a gate recessing step, e.g. using local oxidation recessing the gate by forming single crystalline semiconductor material at the source or drain location
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- H01L29/68—Types 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
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/7842—Field effect transistors with field effect produced by an insulated gate means for exerting mechanical stress on the crystal lattice of the channel region, e.g. using a flexible substrate
- H01L29/7848—Field effect transistors with field effect produced by an insulated gate means for exerting mechanical stress on the crystal lattice of the channel region, e.g. using a flexible substrate the means being located in the source/drain region, e.g. SiGe source and drain
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep 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
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66545—Unipolar field-effect transistors with an insulated gate, i.e. MISFET using a dummy, i.e. replacement gate in a process wherein at least a part of the final gate is self aligned to the dummy gate
Abstract
【解決手段】 シリコンを主成分とする半導体基板10の素子形成領域を囲むように設けられた、シリコン酸化物を主成分とする素子分離絶縁膜11と、素子形成領域上にゲート絶縁膜12を介して形成されたゲート電極13と、ゲート電極13下のチャネル領域を挟んで半導体基板10中に形成された拡散層16と、シリコンと格子定数の異なる半導体材料からなり拡散層16と同じ導電型を有し、チャネル領域及び拡散層16を挟んで形成された半導体領域21,23と、素子分離絶縁膜11の側部で半導体領域21の最下部よりも上方で、半導体領域16と素子分離絶縁膜11との間に形成されたシリコン窒化膜22と、半導体領域23の表面に形成された導電膜25とを備えた。
【選択図】 図1
Description
図1は、本発明の第1の実施形態に係わるMOS型半導体装置の概略構成を示す断面図である。この半導体装置は、pチャネルMOSFETのソース・ドレイン拡散層領域にSiGeを埋め込むことによりチャネル領域に圧縮応力を加え、素子の駆動力を向上させたものである。
なお、本発明は上述した実施形態に限定されるものではない。実施形態では、第1及び第2の半導体領域としてSiGeを用いたが、他の半導体材料を用いることもできる。第1及び第2の半導体領域はチャネルに歪みを加えるためであり、シリコンと格子定数の異なる半導体材料であればよい。具体的には、nチャネルMOSを形成する場合はチャネルに引っ張り歪みを加えるために、SiCを用いることも可能である。さらに、基板は必ずしもSiに限定されるものではなく、他の半導体材料を用いることも可能である。この場合も、第1及び第2の半導体領域は基板と格子定数の異なるものであればよい。
11…素子分離絶領膜
12…ゲート絶縁膜
13…多結晶シリコン膜(ゲート電極)
14…シリコン窒化膜(ゲート電極キャップ層)
15…シリコン窒化膜(オフセットスペーサー)
16…p型のソース・ドレイン・エクステンション領域
17…シリコン酸化膜(側壁絶縁膜)
21…p+ 型SiGe領域(第1の半導体領域)
22…シリコン窒化膜(側壁)
23…p+ 型SiGe領域(第2の半導体領域)
24…ニッケル膜
25…ニッケルシリサイド膜(NiSi膜)
Claims (5)
- シリコンを主成分とする半導体基板の素子形成領域を囲むように設けられた、シリコン酸化物を主成分とする素子分離絶縁膜と、
前記素子形成領域上にゲート絶縁膜を介して形成されたゲート電極と、
前記ゲート電極下のチャネル領域を挟んで前記半導体基板中に形成された拡散層と、
シリコンと格子定数の異なる半導体材料からなり前記拡散層と同じ導電型を有し、前記チャネル領域及び拡散層を挟んで形成された半導体領域と、
前記素子分離絶縁膜の側部で前記半導体領域の最下部よりも上方で、前記半導体領域と前記素子分離絶縁膜との間に形成されたシリコン窒化膜と、
前記半導体領域の表面に形成された導電膜と、
を具備したことを特徴とする半導体装置。 - n型のシリコン基板の素子形成領域を囲むように設けられた、シリコン酸化物からなる素子分離絶縁膜と、
前記素子形成領域上にゲート絶縁膜を介して形成されたゲート電極と、
前記ゲート電極下のチャネル領域を挟んで前記シリコン基板中に形成されたp型拡散層と、
前記チャネル領域及び拡散層を挟んで形成された、ゲルマニウムとシリコンの混合物からなるp型半導体領域と、
前記素子分離絶縁膜の側部で前記半導体領域の最下部よりも上方で、前記半導体領域と前記素子分離絶縁膜との間に形成されたシリコン窒化膜と、
前記半導体領域の表面に形成された、該半導体領域の半導体と金属との化合物からなる導電膜と、
を具備したことを特徴とする半導体装置。 - 前記導電膜は、ニッケルシリサイド、コバルトシリサイド、プラチナシリサイドのうちの何れかを主成分とする化合物であることを特徴とする、請求項1又は2記載の半導体装置。
- シリコンを主成分とする半導体基板の素子形成領域を囲むように、シリコン酸化物を主成分とする素子分離絶縁膜を形成する工程と、
前記素子形成領域上にゲート絶縁膜を介してゲート電極を形成する工程と、
前記ゲート電極下のチャネル領域を挟んで前記半導体基板中に拡散層を形成する工程と、
前記チャネル領域及び拡散層を挟む領域で、前記半導体基板の一部を選択的にエッチングする工程と、
前記基板のエッチングされた部分に、シリコンと格子定数の異なる半導体材料からなる第1の半導体領域をエピタキシャル成長する工程と、
前記第1の半導体領域と前記素子分離絶縁膜との間に、側壁残し技術によりシリコン窒化膜を形成する工程と、
前記第1の半導体領域及びシリコン窒化膜の上に、前記第1の半導体領域と同じ材料からなる第2の半導体領域をエピタキシャル成長する工程と、
前記第2の半導体領域の表面に導電膜を形成する工程と、
を含むことを特徴とする半導体装置の製造方法。 - n型のシリコン基板の素子形成領域を囲むように、シリコン酸化物からなる素子分離絶縁膜を形成する工程と、
前記素子形成領域上にゲート絶縁膜を介してゲート電極を形成する工程と、
前記ゲート電極下のチャネル領域を挟んで前記シリコン基板中にp型拡散層を形成する工程と、
前記チャネル領域及びp型拡散層を挟む領域で、前記シリコン基板の一部を選択的にエッチングする工程と、
前記シリコン基板のエッチングされた部分に、ゲルマニウムとシリコンの混合物からなる第1のp型半導体領域を形成する工程と、
前記第1のp型半導体領域と前記素子分離絶縁膜との間に、側壁残し技術によりシリコン窒化膜を形成する工程と、
前記第1のp型半導体領域及びシリコン窒化膜の上に、第1の半導体領域と同じ材料からなる第2のp型半導体領域を形成する工程と、
前記第2のp型半導体領域の表面に、該半導体領域の半導体と金属との化合物からなる導電膜を形成する工程と、
を含むことを特徴とする半導体装置の製造方法。
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JP2006248376A JP2008071890A (ja) | 2006-09-13 | 2006-09-13 | 半導体装置及びその製造方法 |
TW096132179A TW200818508A (en) | 2006-09-13 | 2007-08-30 | Semiconductor device and method of manufacturing the same |
US11/898,602 US7825433B2 (en) | 2006-09-13 | 2007-09-13 | MIS-type semiconductor device |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103871896A (zh) * | 2012-12-17 | 2014-06-18 | 国际商业机器公司 | 半导体结构和制造方法 |
US8835995B2 (en) | 2010-09-07 | 2014-09-16 | Samsung Electronics Co., Ltd. | Semiconductor devices including silicide regions and methods of fabricating the same |
JP2017504192A (ja) * | 2013-12-12 | 2017-02-02 | 日本テキサス・インスツルメンツ株式会社 | 埋め込みエピタキシャルファセットにおけるシリサイド及びコンタクトの形成 |
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KR100814417B1 (ko) * | 2006-10-02 | 2008-03-18 | 삼성전자주식회사 | 단결정 실리콘 패턴 형성 방법 및 이를 이용한 불 휘발성 메모리 소자의 형성 방법 |
JP2009043916A (ja) * | 2007-08-08 | 2009-02-26 | Toshiba Corp | 半導体装置及びその製造方法 |
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TW200818508A (en) | 2008-04-16 |
US20080128748A1 (en) | 2008-06-05 |
US7825433B2 (en) | 2010-11-02 |
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