JP4947902B2 - 高密度二重平面デバイス - Google Patents
高密度二重平面デバイス Download PDFInfo
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 48
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- GDMRBHLKSYSMLJ-UHFFFAOYSA-N [F].O=[Si] Chemical compound [F].O=[Si] GDMRBHLKSYSMLJ-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
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- 229910052782 aluminium Inorganic materials 0.000 description 1
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- 229910052785 arsenic Inorganic materials 0.000 description 1
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- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/8238—Complementary field-effect transistors, e.g. CMOS
- H01L21/823807—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the channel structures, e.g. channel implants, halo or pocket implants, or channel materials
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- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/8238—Complementary field-effect transistors, e.g. CMOS
- H01L21/823821—Complementary field-effect transistors, e.g. CMOS 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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- H01L27/088—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including only semiconductor components of a single kind including field-effect components only the components being field-effect transistors with insulated gate
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- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
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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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Description
Claims (27)
- 基板上に形成された第1及び第2の自立型半導体本体を備え、前記第1の自立型半導体本体の第1の部分と前記第2の自立型半導体本体の第1の部分とが、該第1の部分の前記基板表面に沿って延びる方向が互いに非直交かつ非平行な角度となるように配置され、前記第1の自立型半導体本体の前記第1の部分が、第1の多数キャリアのチャネル領域が形成される第1の結晶面を有し、前記第2の自立型半導体本体の前記第1の部分が、前記第1の多数キャリアと異なる第2の多数キャリアのチャネル領域が形成される、前記第1の結晶面と異なる第2の結晶面を有し、
第1のゲート電極が、前記第1の自立型半導体本体の前記第1の部分の少なくとも一部で前記第1の自立型半導体本体の前記第1の部分と非直角に交差し、かつ、前記基板の基準軸に沿って配向し、
第2のゲート電極が、前記第2の自立型半導体本体の前記第1の部分の少なくとも一部で前記第2の自立型半導体本体の前記第1の部分と非直角に交差し、かつ、前記基準軸に沿って配向し、
被制御電極が、それぞれ前記第1のゲート電極及び前記第2のゲート電極から露出された前記第1及び第2の自立型半導体本体の部分に少なくとも配置された、
ことを特徴とするMOSデバイスの構造体。 - 前記第1及び第2の自立型半導体本体が、シリコン、ゲルマニウム、シリコン又はゲルマニウムの化合物、III−V族物質、及びII−IV族物質からなる群から選択された物質から構成される、請求項1に記載の構造体。
- 前記第1の自立型半導体本体の前記第1の部分の前記基板表面に沿って延びる方向が、前記第2の自立型半導体本体の前記第1の部分の前記基板表面に沿って延びる方向に対して45度の角度を有する、請求項2に記載の構造体。
- 前記第1のゲート電極が、67.5度の角度で前記第1の自立型半導体本体の前記第1の部分と交差する、請求項3に記載の構造体。
- 前記第1の自立型半導体本体の前記チャネル領域が、該第1の自立型半導体本体の{100}面と位置合わせされ、前記第2の自立型半導体本体の前記チャネル領域が、該第2の自立型半導体本体の{110}面と位置合わせされる、請求項4に記載の構造体。
- 電子が、前記第1の自立型半導体本体の前記チャネル領域内の前記第1の多数キャリアであり、正孔が、前記第2の自立型半導体本体の前記チャネル領域内の前記第2の多数キャリアである、請求項5に記載の構造体。
- 基板上に形成された、第1の結晶面に沿って形成されたn型チャネル領域、並びにソース及びドレイン領域を有する第1の自立型シリコン本体と、
前記n型チャネル領域で前記第1の自立型シリコン本体と非直角に交差し、かつ、前記基板の基準軸に沿って配向する第1のゲート電極と、
前記基板上に形成された、前記第1の結晶面と異なる第2の結晶面に沿って形成されたp型チャネル領域、並びにソース及びドレイン領域を有する第2の自立型シリコン本体と、
前記p型チャネル領域で前記第2の自立型シリコン本体と非直角に交差し、かつ、前記基準軸に沿って配向する第2のゲート電極と
を備え、前記第1の自立型シリコン本体の前記n型チャネル領域と前記第2の自立型シリコン本体の前記p型チャネル領域とが、互いに非直交かつ非平行な方向にキャリアが導通するように配置されることを特徴とするCMOSデバイスの構造体。 - 前記第1の結晶面が{100}面であり、前記第2の結晶面が{110}面である、請求項7に記載の構造体。
- 前記第1の自立型シリコン本体の前記ソース及びドレイン領域がn型不純物領域であり、前記第2の自立型シリコン本体の前記ソース及びドレイン領域がp型である、請求項8に記載の構造体。
- 前記第1及び第2の自立型シリコン本体の少なくとも一方が、前記第1及び第2のゲート電極が延びる方向のそれぞれに対して直角に延びる、前記ソース及びドレイン領域の少なくとも一方が形成される部分を有する、請求項8に記載の構造体。
- 前記第1及び第2の自立型シリコン本体の各々が、それぞれ前記第1及び第2のゲート電極が延びる方向に対して直角に延びる、ソース及びドレイン領域が形成される部分を有する、請求項9に記載の構造体。
- 前記第1及び第2の自立型シリコン本体の少なくとも一方がドッグレッグ形状を有する、請求項8に記載の構造体。
- 前記第1の結晶面が、シリコンの少なくとも1つの他の結晶面のものより大きい電子移動度をもたらし、前記第2の結晶面が、前記第1の結晶面のものより大きい正孔移動度をもたらす、請求項8に記載の構造体。
- 基板上に形成された、第1の自立型半導体本体の第2の結晶面のものより大きい電子移動度を有する第1の結晶面に沿って形成されたn型チャネル領域、並びにソース及びドレイン領域を有する第1の自立型半導体本体と、
前記n型チャネル領域で前記第1の自立型半導体本体と非直角に交差し、かつ、前記基板の基準軸に沿って配向する第1のゲート電極と、
前記基板上に形成された、前記第1の自立型半導体本体の前記第1の結晶面のものより大きい正孔移動度を有する第2の結晶面に沿って形成されたp型チャネル領域、並びにソース及びドレイン領域を有する第2の自立型半導体本体と、
前記p型チャネル領域で前記第2の自立型半導体本体と非直角に交差し、かつ、前記基準軸に沿って配向する第2のゲート電極と
を備え、前記第1の自立型半導体本体の前記n型チャネル領域と前記第2の自立型半導体本体の前記p型チャネル領域とが、互いに非直交かつ非平行な方向にキャリアが導通するように配置されることを特徴とするCMOSデバイスの構造体。 - MOSデバイスを形成する方法であって、
第1及び第2の自立型半導体本体を基板上に形成する工程であって、前記第1の自立型半導体本体が、前記第2の自立型半導体本体の第1の部分の基板表面に沿って延びる方向に対して非直交かつ非平行な方向に前記基板表面に沿って延びる第1の部分を有し、前記第1の自立型半導体本体の前記第1の部分が、第1の多数キャリアを有するチャネル領域が形成される第1の結晶面を有し、前記第2の自立型半導体本体の前記第1の部分が、前記第1の多数キャリアと異なる第2の多数キャリアを有するチャネル領域が形成される、前記第1の結晶面と異なる第2の結晶面を有することを特徴とする、当該第1及び第2の自立型半導体本体を形成する工程と、
前記第1の自立型半導体本体の前記第1の部分の少なくとも一部で前記第1の自立型半導体本体の前記第1の部分と非直角に交差し、かつ、前記基板の基準軸に沿って配向する第1のゲート電極を形成し、前記第2の自立型半導体本体の前記第1の部分の少なくとも一部で前記第2の自立型半導体本体の前記第1の部分と非直角に交差し、かつ、前記基準軸に沿って配向する第2のゲート電極を形成する工程と、
前記第1のゲート電極及び前記第2のゲート電極から露出された前記第1及び第2の自立型半導体本体の部分に被制御電極を形成する工程とを含むことを特徴とする方法。 - CMOSデバイスを形成する方法であって、
基板上に、第1の自立型半導体本体の第2の結晶面のものより大きい電子移動度を有する第1の結晶面に沿って形成されたn型チャネル領域を有する第1の自立型半導体本体を形成する工程と、
前記基板上に、前記第1の自立型半導体本体の前記第1の結晶面のものより大きい正孔移動度を有する第2の結晶面に形成されたp型チャネル領域を有する第2の自立型半導体本体を形成する工程と、
前記n型チャネル領域で前記第1の自立型半導体本体と非直角に交差し、かつ、前記基板の基準軸に沿って配向する第1のゲート電極を形成し、前記p型チャネル領域で前記第2の自立型半導体本体と非直角に交差し、かつ、前記基準軸に沿って配向する第2のゲート電極を形成する工程とを含み、
前記第1の自立型半導体本体の前記n型チャネル領域と前記第2の自立型半導体本体の前記p型チャネル領域とが、互いに非直交かつ非平行な方向にキャリアが導通するように配置されることを特徴とする方法。 - それぞれ第1及び第2の結晶面に沿って形成されたチャネル領域を有する第1及び第2のfinFETを含む高密度集積回路を構成する方法であって、
半導体ウェーハを所定の軸に向ける工程と、
前記所定の軸に対してそれぞれ非直交かつ非平行な第1の方位角に延びる第1の組のマスク形状を形成し、前記所定の軸に対してそれぞれ非直交かつ非平行な前記第1の方位角とは異なる第2の方位角に延びる第2の組のマスク形状を形成する工程と、
前記第1及び第2の組のマスク形状によって保護されない前記半導体ウェーハの部分をエッチングすることによって、前記半導体ウェーハ内に前記第1及び第2のfinFETのそれぞれ第1及び第2の方位角の方向に平行な側面を有する本体を形成する工程と、
形成されるゲート電極が前記所定の軸または該軸と直交する軸に沿って配向するように前記所定の軸と位置合わせしてマスキング及びエッチングを実行することで、前記finFETの前記本体にわたって前記ゲート電極を形成する工程と
を含むことを特徴とする方法。 - 前記半導体ウェーハが、シリコン、ゲルマニウム、シリコン又はゲルマニウムの化合物、III−V族物質、及びII−IV族物質からなる群から選択された物質から構成される、請求項17に記載の方法。
- 前記半導体ウェーハがシリコンを含む、請求項18に記載の方法。
- 前記第1の方位角は、電子移動度が第2の結晶面のものより大きい前記半導体の第1の結晶面のものであり、前記第2の方位角は、正孔移動度が前記第1の結晶面より大きい該半導体の第2の結晶面のものである、請求項17に記載の方法。
- 前記半導体ウェーハが、{110}面からほぼ45度に配向された{100}結晶面を有する、請求項20に記載の方法。
- 前記第1の方位角が、前記第2の方位角と前記所定の軸を基準とした大きさが等しく、前記所定の軸から該第2の方位角と反対方向に傾けた角度である、請求項17に記載の方法。
- 前記第1及び第2のfinFETの本体が、前記半導体ウェーハの平面内の前記所定の軸を基準として、それぞれ+22.5度及び−22.5度に配向された、請求項22に記載の方法。
- 基板上に形成された、第1の結晶面に沿って形成された第1の導電性領域を有する第1の自立型半導体本体と、
前記基板上に形成された、前記第1の結晶面と異なる第2の結晶面に沿って形成された第2の導電性領域を有する第2の自立型半導体本体と、
それぞれ前記第1及び第2の導電性領域で前記第1及び第2の自立型半導体本体とそれぞれ非直角かつ非平行な角度で交差し、かつ、前記基板の基準軸に沿って配向し、前記第1及び第2の導電性領域をそれぞれ覆う第1及び第2の導体と、
を備え、前記第1の自立型半導体本体の前記第1の導電性領域と前記第2の自立型半導体本体の前記第2の導電性領域とが、互いに非直交かつ非平行な方向にキャリアが導通するように配置されることを特徴とする構造体。 - 不純物領域が、それぞれ前記第1及び第2の自立型半導体本体の少なくとも一方内に配置され、前記第1及び第2の導体それぞれの少なくとも一方が、その全長の15%にわたって前記不純物領域の上に重なっている、請求項24に記載の構造体。
- 前記不純物領域が、FETのソース拡散を含み、前記第1及び第2の導体それぞれの前記少なくとも一方が、FETのゲート電極を含む、請求項25に記載の構造体。
- 前記不純物領域が、FETのドレイン拡散を含み、前記第1及び第2の導体それぞれの前記少なくとも一方が、FETのゲート電極を含む、請求項25に記載の構造体。
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TWI239630B (en) | 2005-09-11 |
AU2003293380A1 (en) | 2004-07-29 |
EP1573823B1 (en) | 2016-11-16 |
JP2006511962A (ja) | 2006-04-06 |
KR100734822B1 (ko) | 2007-07-06 |
KR20050085052A (ko) | 2005-08-29 |
WO2004061972A1 (en) | 2004-07-22 |
TW200518310A (en) | 2005-06-01 |
EP1573823A1 (en) | 2005-09-14 |
CN1726595A (zh) | 2006-01-25 |
EP1573823A4 (en) | 2009-03-25 |
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