JP2011103450A - Finfetsおよびその形成方法 - Google Patents
Finfetsおよびその形成方法 Download PDFInfo
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- H01L29/00—Semiconductor 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/417—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
- H01L29/41725—Source or drain electrodes for field effect devices
- H01L29/41791—Source or drain electrodes for field effect devices for transistors with a horizontal current flow in a vertical sidewall, e.g. FinFET, MuGFET
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- 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
- H01L29/785—Field effect transistors with field effect produced by an insulated gate having a channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
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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
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
- H01L21/82—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/822—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/823431—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type with a particular manufacturing method of transistors with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
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- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66787—Unipolar field-effect transistors with an insulated gate, i.e. MISFET with a gate at the side of the channel
- H01L29/66795—Unipolar field-effect transistors with an insulated gate, i.e. MISFET with a gate at the side of the channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
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- 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
- H01L29/785—Field effect transistors with field effect produced by an insulated gate having a channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
- H01L2029/7858—Field effect transistors with field effect produced by an insulated gate having a channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET having contacts specially adapted to the FinFET geometry, e.g. wrap-around contacts
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Abstract
【解決手段】基板上のフィンチャネル本体110a、110b、フィンチャネル本体110a、110b、上に配置されたゲート電極115、およびフィンチャネル本体110a、110b、に隣接して配置され、どのフィン構造も実質的に含まない、少なくとも1つのソース/ドレイン(S/D)領域120a,120b及び125a,125bを含むフィン電界効果トランジスタ(FinFET)。
【選択図】図1
Description
Claims (10)
- 基板上のフィンチャネル本体と、
前記フィンチャネル本体上に配置されたゲート電極と、
前記フィンチャネル本体に隣接して配置され、どのフィン構造も実質的に含まない、少なくとも1つのソース/ドレイン(S/D)領域を有するフィン電界効果トランジスタ(FinFET)。 - 前記基板は、第1分離領域および第2分離領域の間の部分を有し、前記少なくとも1つのS/D領域は、エピタキシャル成長領域を含み、前記エピタキシャル成長領域は、前記基板の前記部分上に配置される請求項1に記載のFinFET。
- 前記エピタキシャル成長領域および前記基板の前記部分は、界面を有し、前記界面の中心領域は、前記第1分離領域の表面の下方にあり、かつ前記界面の前記中心領域および前記第1分離領域の前記表面間の距離は、前記フィンチャネル本体の高さと実質的に同じである請求項2に記載のFinFET。
- 前記界面の前記中心領域は、実質的に平坦である請求項3に記載のFinFET。
- 前記第1分離領域は、前記第1分離領域の前記表面が前記第1分離領域および前記基板の前記部分の間の界面と交差する角を有し、前記基板の前記部分は、前記基板の前記部分の表面が前記第1分離領域および前記基板の前記部分間の界面と交差する先端を有し、前記角は、前記先端に実質的に隣接する請求項2に記載のFinFET。
- 基板上にフィンチャネル本体を形成し、
前記フィンチャネル本体上にゲート電極を形成し、
前記フィンチャネル本体に隣接し、どのフィン構造も実質的に含まない、少なくとも1つのソース/ドレイン(S/D)領域を形成するフィン電界効果トランジスタ(FinFET)を形成するための方法。 - 前記フィンチャネル本体の形成は、
前記基板上にフィンを形成するステップと、
前記フィンの少なくとも1つの端部を除去し、分離構造によって囲まれた前記基板の部分の表面を露出してフィンチャネル本体を形成するステップを有する請求項6に記載の方法。 - 前記基板の部分を除去するステップを更に有し、前記基板の前記部分の前記露出した表面の中心領域は、前記分離構造の表面の下方にあり、前記基板の前記露出した表面の前記中心領域および前記分離構造の前記表面間の距離は、前記フィンチャネル本体の高さと実質的に同じである請求項7に記載の方法。
- 前記少なくとも1つのS/D領域の形成は、前記基板の前記部分の前記露出した表面から前記少なくとも1つのS/D領域をエピタキシャル成長させるステップを有する請求項7に記載の方法。
- 前記エピタキシャル成長領域上にエピタキシャル層を形成するステップと、
少なくとも1つの前記エピタキシャル層をサリサイド化するステップをさらに有する請求項9に記載の方法。
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US8264021B2 (en) | 2012-09-11 |
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TWI456760B (zh) | 2014-10-11 |
CN102034871A (zh) | 2011-04-27 |
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