JP4810089B2 - 半導体素子の製造方法 - Google Patents
半導体素子の製造方法 Download PDFInfo
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- JP4810089B2 JP4810089B2 JP2004367799A JP2004367799A JP4810089B2 JP 4810089 B2 JP4810089 B2 JP 4810089B2 JP 2004367799 A JP2004367799 A JP 2004367799A JP 2004367799 A JP2004367799 A JP 2004367799A JP 4810089 B2 JP4810089 B2 JP 4810089B2
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- 239000004065 semiconductor Substances 0.000 title claims description 88
- 238000004519 manufacturing process Methods 0.000 title claims description 34
- 239000000758 substrate Substances 0.000 claims description 42
- 238000000034 method Methods 0.000 claims description 29
- 125000006850 spacer group Chemical group 0.000 claims description 17
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 12
- 238000005530 etching Methods 0.000 claims description 12
- 229910052710 silicon Inorganic materials 0.000 claims description 12
- 239000010703 silicon Substances 0.000 claims description 12
- 239000012535 impurity Substances 0.000 claims description 11
- 150000004767 nitrides Chemical class 0.000 claims description 10
- 238000002955 isolation Methods 0.000 claims description 8
- 238000005468 ion implantation Methods 0.000 claims description 7
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 6
- 229920005591 polysilicon Polymers 0.000 claims description 6
- 229910000449 hafnium oxide Inorganic materials 0.000 claims description 3
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 claims description 3
- 238000007796 conventional method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000001039 wet etching Methods 0.000 description 4
- 238000000059 patterning Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 229910008310 Si—Ge Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- 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
- H01L29/66742—Thin film unipolar transistors
- H01L29/66772—Monocristalline silicon transistors on insulating substrates, e.g. quartz substrates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- 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
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78606—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with supplementary region or layer in the thin film or in the insulated bulk substrate supporting it for controlling or increasing the safety of the device
- H01L29/78618—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with supplementary region or layer in the thin film or in the insulated bulk substrate supporting it for controlling or increasing the safety of the device characterised by the drain or the source properties, e.g. the doping structure, the composition, the sectional shape or the contact structure
- H01L29/78621—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with supplementary region or layer in the thin film or in the insulated bulk substrate supporting it for controlling or increasing the safety of the device characterised by the drain or the source properties, e.g. the doping structure, the composition, the sectional shape or the contact structure with LDD structure or an extension or an offset region or characterised by the doping profile
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- 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
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78645—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with multiple gate
- H01L29/78648—Thin film transistors, i.e. transistors with a channel being at least partly a thin film with multiple gate arranged on opposing sides of the channel
Description
図10は、本発明の第1の実施の形態に係る半導体素子のレイアウト図である。
図11は、図10のI−I’及びII−II’に沿って切断した第1の実施の形態に係る半導体素子の断面図である。
前記ゲート積層構造の側壁には側壁スペーサ190が備えられ、側壁スペーサ190の両側の活性領域にLDD領域180と隣接するようソース及びドレイン領域210が備えられる。
図12に示されているように、半導体基板100の上部にSiGe−エピ層110、Si−エピ層120を順次形成する。次には、半導体基板100に活性領域を定義する素子分離膜130を形成する。
その次に、ゲート電極170aの両側の活性領域に不純物を注入して前記チャンネル領域に隣接したLDD領域180を形成する。
図18に示されているように、SiGe−エピ層110が除去されたゲート電極下部の空間a、露出したSi−エピ層120、及び半導体基板100の表面に絶縁膜(図示省略)を形成したあと湿式食刻し、SiGe−エピ層110が除去されたゲート電極下部の空間aを埋め込む埋込絶縁膜200を形成する。ここで、絶縁膜は酸化膜、窒化酸化膜、酸化膜/窒化膜/酸化膜のONO絶縁膜又はハフニウム酸化膜(HfO2)で形成するのが好ましい。
15、110 SiGe−エピ層
20、120 Si−エピ層
25、130 素子分離膜
30、160 ゲート絶縁膜
35、170 ゲート用導電層
37、175 ハードマスク絶縁膜
40、180 LDD領域
45、190 側壁スペーサ
50、200 埋込絶縁膜
55、210 ソース/ドレイン領域
140 開口部
Claims (7)
- (a)半導体基板上部にSiGe−エピ層、Si−エピ層を順次形成する段階、
(b)前記半導体基板に活性領域を定義する素子分離膜を形成する段階、
(c)前記Si−エピ層に不純物を注入してチャンネル領域を形成する段階、
(d)下記LDD領域の側壁を露出させるように前記Si−エピ層、及び所定厚さの前記SiGe−エピ層を食刻して形成される開口部であって、前記開口部の一側の側壁に隣接する一側のLDD領域から、前記一側の側壁に対向する他側の側壁に隣接する他側のLDD領域まで延長される前記開口部を形成する段階、
(e)前記開口部を介し露出したSiGe−エピ層下部の半導体基板で、前記開口部に対応する下部にチャンネルストップイオン注入領域を形成する段階、
(f)前記開口部の底部及び側壁を含む全体表面の上部にゲート絶縁膜、ゲート用導電層及びハードマスク絶縁膜を形成してパターニングし、ゲート絶縁膜パターン、ゲート電極及びハードマスク絶縁膜パターンの積層構造を形成する段階、
(g)前記ゲート電極の両側のSi−エピ層にLDD領域を形成する段階、
(h)前記積層構造の側壁に側壁スペーサを形成する段階、
(i)前記側壁スペーサの両側のSi−エピ層、SiGe−エピ層及び所定厚さの半導体基板を食刻して除去する段階、
(j)前記Si−エピ層下部のSiGe−エピ層を除去して空間を形成する段階、
(k)前記空間を埋め込み、前記チャンネルストップイオン注入領域の上部に備えられる埋込絶縁膜を形成する段階、
(l)前記側壁スペーサの両側の活性領域にシリコン層を形成する段階、及び
(m)前記シリコン層に不純物を注入してソース及びドレイン領域を形成する段階
を含むことを特徴とする半導体素子の製造方法。 - 前記(d)段階は、前記LDD領域の間で延長され互いに平行に配列される開口部を2つ以上形成する段階を含むことを特徴とする請求項1に記載の半導体素子の製造方法。
- 前記(c)段階前に、前記半導体基板の上部にバッファ酸化膜又はバッファ酸化膜/バッファ窒化膜の積層構造を形成し、(e)段階を行なったあと前記バッファ酸化膜又はバッファ酸化膜/バッファ窒化膜の積層構造を除去する段階をさらに含むことを特徴とする請求項1に記載の半導体素子の製造方法。
- 前記ゲート絶縁膜は酸化膜、窒化酸化膜、酸化膜/窒化膜/酸化膜のONO絶縁膜及びハフニウム酸化膜(HfO2)の中から選択される何れかで形成することを特徴とする請求項1に記載の半導体素子の製造方法。
- 前記シリコン層はSi−成長層、ポリシリコン層及びSi−成長層/ポリシリコン層の積層構造の中から選択される何れかで形成することを特徴とする請求項1から請求項4のうち何れか一項に記載の半導体素子の製造方法。
- 前記(d)段階は、前記開口部を介し露出したSiGe−エピ層を食刻して半導体基板を露出させる段階をさらに含むことを特徴とする請求項1に記載の半導体素子の製造方法。
- 前記(d)段階は、前記開口部を介し露出したSiGe−エピ層を食刻したあと半導体基板の表面を所定厚さに食刻する段階をさらに含むことを特徴とする請求項1又は請求項6に記載の半導体素子の製造方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040063167A KR100673108B1 (ko) | 2004-08-11 | 2004-08-11 | 반도체 소자 및 그 제조 방법 |
KR2004-063167 | 2004-08-11 |
Publications (2)
Publication Number | Publication Date |
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JP2006054411A JP2006054411A (ja) | 2006-02-23 |
JP4810089B2 true JP4810089B2 (ja) | 2011-11-09 |
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JP2004367799A Expired - Fee Related JP4810089B2 (ja) | 2004-08-11 | 2004-12-20 | 半導体素子の製造方法 |
Country Status (4)
Country | Link |
---|---|
US (2) | US7148115B2 (ja) |
JP (1) | JP4810089B2 (ja) |
KR (1) | KR100673108B1 (ja) |
TW (1) | TWI251295B (ja) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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KR100669556B1 (ko) * | 2004-12-08 | 2007-01-15 | 주식회사 하이닉스반도체 | 반도체 소자 및 그 제조 방법 |
KR100610465B1 (ko) * | 2005-03-25 | 2006-08-08 | 주식회사 하이닉스반도체 | 반도체 소자의 제조 방법 |
JP4849504B2 (ja) * | 2005-03-29 | 2012-01-11 | ラピスセミコンダクタ株式会社 | 半導体装置、その製造方法、出力回路および電子機器 |
FR2897471A1 (fr) * | 2006-02-10 | 2007-08-17 | St Microelectronics Sa | Formation d'une portion de couche semiconductrice monocristalline separee d'un substrat |
JP5055846B2 (ja) * | 2006-06-09 | 2012-10-24 | ソニー株式会社 | 半導体装置およびその製造方法 |
KR100745885B1 (ko) * | 2006-07-28 | 2007-08-02 | 주식회사 하이닉스반도체 | 반도체 소자 및 그 제조 방법 |
CN102376769B (zh) * | 2010-08-18 | 2013-06-26 | 中国科学院微电子研究所 | 超薄体晶体管及其制作方法 |
US8723272B2 (en) * | 2011-10-04 | 2014-05-13 | Taiwan Semiconductor Manufacturing Company, Ltd. | FinFET device and method of manufacturing same |
KR102236049B1 (ko) | 2014-07-07 | 2021-04-05 | 삼성전자주식회사 | 반도체 장치 및 그 제조 방법 |
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JPH04276662A (ja) * | 1991-03-05 | 1992-10-01 | Kawasaki Steel Corp | 半導体装置の製造方法 |
JPH05343679A (ja) * | 1992-06-10 | 1993-12-24 | Kawasaki Steel Corp | 半導体装置及びその製造方法 |
JP2638578B2 (ja) * | 1995-06-08 | 1997-08-06 | 日本電気株式会社 | Mos電界効果トランジスタ |
JP2850861B2 (ja) | 1996-07-15 | 1999-01-27 | 日本電気株式会社 | 半導体装置およびその製造方法 |
KR100271790B1 (ko) * | 1997-12-20 | 2000-11-15 | 김영환 | 반도체장치및그의제조방법 |
JP2002009170A (ja) | 2000-06-22 | 2002-01-11 | Asahi Kasei Microsystems Kk | アナログ回路及びその製造方法 |
US6476448B2 (en) | 2001-01-12 | 2002-11-05 | United Microelectronics Corp. | Front stage process of a fully depleted silicon-on-insulator device and a structure thereof |
JP4546021B2 (ja) * | 2002-10-02 | 2010-09-15 | ルネサスエレクトロニクス株式会社 | 絶縁ゲート型電界効果型トランジスタ及び半導体装置 |
US7045401B2 (en) * | 2003-06-23 | 2006-05-16 | Sharp Laboratories Of America, Inc. | Strained silicon finFET device |
US7211864B2 (en) * | 2003-09-15 | 2007-05-01 | Seliskar John J | Fully-depleted castellated gate MOSFET device and method of manufacture thereof |
-
2004
- 2004-08-11 KR KR1020040063167A patent/KR100673108B1/ko not_active IP Right Cessation
- 2004-11-30 US US10/998,818 patent/US7148115B2/en not_active Expired - Fee Related
- 2004-12-07 TW TW093137687A patent/TWI251295B/zh not_active IP Right Cessation
- 2004-12-20 JP JP2004367799A patent/JP4810089B2/ja not_active Expired - Fee Related
-
2006
- 2006-09-08 US US11/517,422 patent/US7683406B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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TWI251295B (en) | 2006-03-11 |
KR20060014576A (ko) | 2006-02-16 |
KR100673108B1 (ko) | 2007-01-22 |
US20070001198A1 (en) | 2007-01-04 |
US7683406B2 (en) | 2010-03-23 |
TW200607041A (en) | 2006-02-16 |
JP2006054411A (ja) | 2006-02-23 |
US20060035417A1 (en) | 2006-02-16 |
US7148115B2 (en) | 2006-12-12 |
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