JP5496105B2 - 基板素子を形成するための方法 - Google Patents
基板素子を形成するための方法 Download PDFInfo
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- JP5496105B2 JP5496105B2 JP2010537943A JP2010537943A JP5496105B2 JP 5496105 B2 JP5496105 B2 JP 5496105B2 JP 2010537943 A JP2010537943 A JP 2010537943A JP 2010537943 A JP2010537943 A JP 2010537943A JP 5496105 B2 JP5496105 B2 JP 5496105B2
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- H10D30/031—Manufacture or treatment of FETs having insulated gates [IGFET] of thin-film transistors [TFT]
- H10D30/0321—Manufacture or treatment of FETs having insulated gates [IGFET] of thin-film transistors [TFT] comprising silicon, e.g. amorphous silicon or polysilicon
- H10D30/0323—Manufacture or treatment of FETs having insulated gates [IGFET] of thin-film transistors [TFT] comprising silicon, e.g. amorphous silicon or polysilicon comprising monocrystalline silicon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81C—PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS
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- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
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- H10D30/43—FETs having zero-dimensional [0D], one-dimensional [1D] or two-dimensional [2D] charge carrier gas channels having 1D charge carrier gas channels, e.g. quantum wire FETs or transistors having 1D quantum-confined channels
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- H10D30/6729—Thin-film transistors [TFT] characterised by the electrodes
- H10D30/673—Thin-film transistors [TFT] characterised by the electrodes characterised by the shapes, relative sizes or dispositions of the gate electrodes
- H10D30/6735—Thin-film transistors [TFT] characterised by the electrodes characterised by the shapes, relative sizes or dispositions of the gate electrodes having gates fully surrounding the channels, e.g. gate-all-around
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Description
基板素子の用意
[0158] 最初に、酸化ケイ素支持層104の上に配置されたケイ素基板層102に窒化物の層がコーティングされた。次に、当分野でよく知られているフォトリソグラフィ技法を使用して、窒化物の上にパターンマスクが生成された。窒化物のエッチングによって、Si基板層102の一部を覆い、かつ、覆われていない領域を残す硬い窒化物マスクが生成された。次に、標準の浅いトレンチ隔離(STI)エッチを使用して、露出したSi層を介してエッチされ、基板(Si)素子112が形成された。
基板素子の処理
[0160] 実施例1の場合と同様、最初に、酸化ケイ素支持層104の上に配置されたケイ素基板層102に窒化物の層がコーティングされた。次に、当分野でよく知られているフォトリソグラフィ技法を使用して、窒化物の上にパターンマスクが生成された。窒化物のエッチングによって、Si基板層102の一部を覆い、かつ、覆われていない部分を残す硬い窒化物マスクが生成された。次に、標準のSTIエッチを使用して、Si基板層を介してエッチされ、基板(Si)素子112が形成された。
Claims (2)
- 1つまたは複数の基板素子を形成するための方法であって、
(a) 支持層の上に配置された基板層を提供する工程と、
(b) 前記基板層の少なくとも一部を覆うために、前記基板層の上に1つまたは複数のマスキング領域を配置する工程と、
(c) 覆われていない1つまたは複数の基板層セクションを除去する工程と、
(d) 前記マスキング領域を除去する工程と、
(e) 前記基板層の下方の前記支持層を除去し、それにより支持層の上方のブリッジとして懸垂された1つまたは複数の懸垂基板素子を形成する工程であって、前記懸垂基板素子が、懸垂基板素子の一方の末端または両方の末端で前記基板層に取り付けられた状態を維持する工程と、
(f) 前記懸垂基板素子の上に絶縁体層を配置する工程と、
(g) 前記絶縁体層の上にゲート層を配置する工程と、
(h) 前記ゲート層の少なくとも一部を覆うために、前記ゲート層の上に1つまたは複数のマスキング領域を配置する工程と、
(i) 覆われていないゲート層の少なくとも一部を除去し、それにより前記絶縁体層の1つまたは複数の部分を露出させ、かつ、1つまたは複数のゲート領域を形成する工程と、
(j) (h)で蒸着された前記マスキング領域を除去する工程と、
(k) 前記絶縁体層および前記ゲート領域の上に保護層を配置する工程と、
(l) 前記絶縁体層の少なくとも一部の上に1つまたは複数のマスキング領域を配置する工程と、
(m) 覆われていない保護層の少なくとも一部を除去し、それにより前記絶縁体層の1つまたは複数の部分を露出させる工程と、
(n) (l)で配置された前記マスキング領域を除去する工程と、
(o) 前記懸垂基板素子を除去する工程と、
を含む方法。 - 1つまたは複数の基板素子を形成するための方法であって、
(a) 支持層の上に配置された基板層を提供する工程と、
(b) 前記基板層の少なくとも一部を覆うために、前記基板層の上に1つまたは複数のマスキング領域を配置する工程と、
(c) 覆われていない1つまたは複数の基板層セクションを除去する工程と、
(d) 前記マスキング領域を除去する工程と、
(e) 前記基板層の下方の前記支持層を除去し、それにより基板層の上方のブリッジとして懸垂された1つまたは複数の懸垂基板セクションを形成する工程であって、前記懸垂基板セクションが、懸垂基板セクションの一方の末端または両方の末端で前記基板層に取り付けられた状態を維持する工程と、
(f) 前記懸垂基板セクションの上に絶縁体層を配置する工程と、
(g) 前記絶縁体層の上にゲート層を配置する工程と、
(h) 前記ゲート層の少なくとも一部を覆うために、前記ゲート層の上に1つまたは複数のマスキング領域を配置する工程と、
(i) 覆われていないゲート層の少なくとも一部を除去し、それにより前記絶縁体層の1つまたは複数の部分を露出させ、かつ、1つまたは複数のゲート領域を形成する工程と、
(j) (h)で蒸着された前記マスキング領域を除去する工程と、
(k) 前記ゲート領域によって覆われていない前記絶縁体層の少なくとも一部を除去し、それにより1つまたは複数の基板層領域を露出させる工程と、
(l) 前記ゲート領域および前記基板層領域の上に保護層を配置する工程と、
(m) 前記ゲート領域を少なくとも覆うために、前記保護層の少なくとも一部の上に1つまたは複数のマスキング領域を配置する工程と、
(n) 覆われていない保護層および前記基板層の少なくとも一部を除去する工程と、
(o) (m)で配置された前記マスキング領域を除去する工程と、
(p) 前記ゲート領域を覆って保護するために1つまたは複数のマスキング領域を配置する工程と、
(q) 前記覆われていない保護層を除去する工程と、
(r) (p)で配置された前記マスキング領域を除去する工程と、
(s) 前記基板層の下方の前記支持層の少なくとも一部を除去し、それにより1つまたは複数の懸垂基板素子を形成する工程であって、前記懸垂基板素子が前記基板層に取り付けられた状態を維持する工程と、
(t) 前記懸垂基板素子を除去する工程と、
を含む方法。
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| Application Number | Priority Date | Filing Date | Title |
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| US602807P | 2007-12-14 | 2007-12-14 | |
| US61/006,028 | 2007-12-14 | ||
| US6436308P | 2008-02-29 | 2008-02-29 | |
| US61/064,363 | 2008-02-29 | ||
| US6495408P | 2008-04-04 | 2008-04-04 | |
| US61/064,954 | 2008-04-04 | ||
| PCT/US2008/013499 WO2009108173A2 (en) | 2007-12-14 | 2008-12-09 | Methods for formation of substrate elements |
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| JP2011507267A5 JP2011507267A5 (ja) | 2012-01-26 |
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| JP2011507267A (ja) | 2011-03-03 |
| EP2232528A4 (en) | 2015-06-17 |
| EP2232528A2 (en) | 2010-09-29 |
| US8999851B2 (en) | 2015-04-07 |
| KR20110074724A (ko) | 2011-07-01 |
| TW200949942A (en) | 2009-12-01 |
| CN101999162A (zh) | 2011-03-30 |
| TWI501316B (zh) | 2015-09-21 |
| WO2009108173A2 (en) | 2009-09-03 |
| WO2009108173A3 (en) | 2009-12-30 |
| US20090230380A1 (en) | 2009-09-17 |
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