JP2010062563A - 局所的に不動態化されたゲルマニウムオンインシュレータ基板の製造方法 - Google Patents
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- 239000000758 substrate Substances 0.000 title claims abstract description 155
- 239000012212 insulator Substances 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000009832 plasma treatment Methods 0.000 claims abstract description 9
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 22
- 229910052732 germanium Inorganic materials 0.000 claims description 20
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 229920002120 photoresistant polymer Polymers 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 8
- 238000001020 plasma etching Methods 0.000 claims description 8
- 229910000577 Silicon-germanium Inorganic materials 0.000 claims description 7
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 6
- 229910005793 GeO 2 Inorganic materials 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 5
- 238000000137 annealing Methods 0.000 claims description 4
- 239000004809 Teflon Substances 0.000 claims description 3
- 229920006362 Teflon® Polymers 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 230000003213 activating effect Effects 0.000 claims description 2
- 238000002161 passivation Methods 0.000 abstract description 12
- 230000006872 improvement Effects 0.000 abstract description 3
- YTRCVQWXYYPLAA-UHFFFAOYSA-N [GeH3+]=O Chemical compound [GeH3+]=O YTRCVQWXYYPLAA-UHFFFAOYSA-N 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 94
- 235000012431 wafers Nutrition 0.000 description 20
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium oxide Inorganic materials O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 11
- PVADDRMAFCOOPC-UHFFFAOYSA-N oxogermanium Chemical compound [Ge]=O PVADDRMAFCOOPC-UHFFFAOYSA-N 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 238000000151 deposition Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000005468 ion implantation Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005121 nitriding Methods 0.000 description 2
- 238000000059 patterning Methods 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 229910052814 silicon oxide Inorganic materials 0.000 description 2
- IWZSHWBGHQBIML-ZGGLMWTQSA-N (3S,8S,10R,13S,14S,17S)-17-isoquinolin-7-yl-N,N,10,13-tetramethyl-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-amine Chemical compound CN(C)[C@H]1CC[C@]2(C)C3CC[C@@]4(C)[C@@H](CC[C@@H]4c4ccc5ccncc5c4)[C@@H]3CC=C2C1 IWZSHWBGHQBIML-ZGGLMWTQSA-N 0.000 description 1
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000001017 electron-beam sputter deposition Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000001659 ion-beam spectroscopy Methods 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- 239000002105 nanoparticle Substances 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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Abstract
【解決手段】 本発明は、局所的に不動態化されたゲルマニウムオンインシュレータ基板を製造するための方法に関し、電子の高移動度を実現するために、窒化された領域が局所化された位置に形成される。窒化はプラズマ処理によって実現される。
【選択図】 図1
Description
Claims (21)
- 局所的に不動態化されたゲルマニウムオンインシュレータ基板を製造する方法であって、
a)Ge含有層、特にSiGe層若しくはエピタキシャルGe層を備える基板、又はGe基板を、ソース基板として形成するステップと、
b)不動態化された領域、特にGeOxNyを含む領域を局所的に形成するステップと、
を備える、方法。 - 前記ステップb)が、前記ソース基板上にパターニングされたマスクを形成する工程を備える、請求項1に記載の方法。
- 前記ステップb)が、窒化によって不動態化する工程を更に備える、請求項1又は2に記載の方法。
- 前記ステップb)が、プラズマ、特にNH3プラズマ、N2プラズマ、又はN2Oプラズマを用いて、前記ソース基板を処理する工程を備える、請求項1〜3の何れか一項に記載の方法。
- 前記ステップb)が、酸素プラズマ及び/又はアルゴンプラズマを、特に前記NH3プラズマ、前記N2プラズマ、又は前記N2Oプラズマを印加する前に、印加する工程を更に備える、請求項1〜4の何れか一項に記載の方法。
- 前記ステップb)の前又は後に、c)前記ソース基板内に所定の分離領域を形成するステップを更に備える、請求項1〜5の何れか一項に記載の方法。
- 前記ステップc)の前又は後に、d)絶縁体層、特に酸化層を前記ソース基板上に形成するステップを更に備える、請求項1〜6の何れか一項に記載の方法。
- 前記局所的に不動態化された領域を、特に約600℃で1時間以上アニールするステップを更に備える、請求項1〜7の何れか一項に記載の方法。
- e)前記ソース基板をハンドル基板に、好ましくはボンディングによって取り付けるステップと、
f)前記所定の分離領域で前記ソース基板を分離して、前記局所的に不動態化されたゲルマニウムオンインシュレータ基板を得るステップと、
を更に備える、請求項1〜8の何れか一項に記載の方法。 - 前記ステップe)の前に、g)絶縁体層、特に酸化層を前記ハンドル基板上に形成するステップを更に備える、請求項9に記載の方法。
- 前記ステップe)の前に、h)プラズマ、特に酸素プラズマ及び/又はNH3プラズマ、N2プラズマ、又はN2Oプラズマを用いて前記ハンドル基板を活性化するステップを更に備える、請求項9又は10に記載の方法。
- 前記ステップe)が、前記ソース基板に対する前記プラズマス処理ステップb)及び前記ハンドル基板の前記プラズマ処理ステップh)の直後に、且つ更なるプロセスステップを介在することなく、行われる、請求項9〜11に記載の方法。
- 前記マスクが、一以上のシャドーマスク、特にテフロンマスク又は金属マスクであり、又は堆積されたマスク、特にフォトレジストベースマスク又はGeO2マスクである、請求項2〜12の何れか一項に記載の方法。
- 前記マスク形成工程は、
前記ソース基板上にGeOx層を形成することと、
フォトレジスト層を形成することと、
前記フォトレジスト層をナノインプリンティングすることと、
プラズマエッチング、特に反応性イオンエッチングによってパターンを形成することと、を備える、請求項13に記載の方法。 - 前記ソース基板内又は前記ソース基板上に合わせマークを形成するステップを更に備える、請求項1〜14の何れか一項に記載の方法。
- 前記合わせマーク形成ステップが、前記ソース基板パターン内に凹部のパターンを形成するステップを備える、請求項15に記載の方法。
- 絶縁体層、特にSiO2層が前記凹部内に形成される、請求項16に記載の方法。
- 前記ステップc)が行われ、前記所定の分離領域が前記ソース基板内の前記凹部を横切る、請求項15〜17の何れか一項に記載の方法。
- 局所的に不動態化された領域をGe層内又はGe層上に備えており、請求項1〜18の何れか一項に記載の方法によって得られるゲルマニウムオンインシュレータ基板。
- 前記局所的に不動態化された領域の位置を特定するように構成且つ配置された合わせマークを更に備える、請求項19に記載のゲルマニウムオンインシュレータ基板。
- ゲルマニウムオンインシュレータ基板内又はゲルマニウムオンインシュレータ基板上に、n−MOSデバイス構造及びp−MOSデバイス構造を備える電子デバイスにおいて、
前記n−MOSデバイス構造が、局所化されていると共に不動態化された領域、特にGeOxNyを含む領域上に形成されており、
前記p−MOSデバイス構造が、前記ゲルマニウムオンインシュレータ基板の他の領域上に形成されていることを特徴とする電子デバイス。
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EP20080290827 EP2161742A1 (en) | 2008-09-03 | 2008-09-03 | Method for Fabricating a Locally Passivated Germanium-on-Insulator Substrate |
EP08290827.8 | 2008-09-03 |
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US8298923B2 (en) * | 2010-10-27 | 2012-10-30 | International Business Machinces Corporation | Germanium-containing release layer for transfer of a silicon layer to a substrate |
US8772873B2 (en) | 2011-01-24 | 2014-07-08 | Tsinghua University | Ge-on-insulator structure and method for forming the same |
CN102157432A (zh) * | 2011-01-24 | 2011-08-17 | 清华大学 | GeOI结构及其形成方法 |
US10020187B2 (en) | 2012-11-26 | 2018-07-10 | Applied Materials, Inc. | Apparatus and methods for backside passivation |
CN103078009B (zh) * | 2013-01-14 | 2015-05-27 | 中国科学院上海微系统与信息技术研究所 | 基于免等离子工艺降低暗电流的光电探测器芯片制作方法 |
CN103928297B (zh) * | 2013-12-28 | 2017-04-26 | 华中科技大学 | 锗硅纳米低维结构的可控制备方法及产品 |
CN105742180A (zh) * | 2016-03-11 | 2016-07-06 | 成都海威华芯科技有限公司 | GaN HEMT器件的制作方法 |
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US6855436B2 (en) * | 2003-05-30 | 2005-02-15 | International Business Machines Corporation | Formation of silicon-germanium-on-insulator (SGOI) by an integral high temperature SIMOX-Ge interdiffusion anneal |
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2008
- 2008-09-03 EP EP20080290827 patent/EP2161742A1/en not_active Withdrawn
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JP2001111014A (ja) * | 1999-08-30 | 2001-04-20 | Lucent Technol Inc | ボンデッドウエハおよびその製造方法およびそれにより製造される集積回路 |
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US20100052104A1 (en) | 2010-03-04 |
EP2161742A1 (en) | 2010-03-10 |
JP5240578B2 (ja) | 2013-07-17 |
US9076713B2 (en) | 2015-07-07 |
US8372733B2 (en) | 2013-02-12 |
US20130134547A1 (en) | 2013-05-30 |
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