JP5478789B2 - Soi基板の作製方法 - Google Patents
Soi基板の作製方法 Download PDFInfo
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- JP5478789B2 JP5478789B2 JP2008160232A JP2008160232A JP5478789B2 JP 5478789 B2 JP5478789 B2 JP 5478789B2 JP 2008160232 A JP2008160232 A JP 2008160232A JP 2008160232 A JP2008160232 A JP 2008160232A JP 5478789 B2 JP5478789 B2 JP 5478789B2
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Images
Classifications
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- H01L27/02—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
- H01L27/12—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 other than a semiconductor body, e.g. an insulating body
- H01L27/1214—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 other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/1259—Multistep manufacturing methods
- H01L27/1262—Multistep manufacturing methods with a particular formation, treatment or coating of the substrate
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- H01L27/12—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 other than a semiconductor body, e.g. an insulating body
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- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
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- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
- H01L21/762—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers
- H01L21/7624—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology
- H01L21/76251—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology using bonding techniques
- H01L21/76254—Dielectric regions, e.g. EPIC dielectric isolation, LOCOS; Trench refilling techniques, SOI technology, use of channel stoppers using semiconductor on insulator [SOI] technology using bonding techniques with separation/delamination along an ion implanted layer, e.g. Smart-cut, Unibond
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- H—ELECTRICITY
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- H01L27/12—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 other than a semiconductor body, e.g. an insulating body
- H01L27/1214—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 other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- 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
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- H01L29/66409—Unipolar field-effect transistors
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Description
図1(A)−図2(E)を用いて、本実施の形態ではSOI基板を作製する方法を説明する。図1(A)−図2(E)はSOI基板の作製方法の一例を示す断面図である。
よって、イオンビーム121に含まれるH3 +の割合を高くすることにより、水素の平均侵入深さのばらつきが小さくなるので、半導体基板111において、水素の深さ方向の濃度プロファイルはより急峻になり、そのプロファイルのピーク位置を浅くすることができる。
本実施の形態では、実施の形態1と異なる方法でSOI基板を作製する方法を説明する。図3(A)−図3(E)はSOI基板の作製方法の一例を示す断面図である。
本実施の形態では、実施の形態1と異なる方法でSOI基板を作製する方法を説明する。図4(A)−図4(E)は、本実施の形態のSOI基板の作製方法の一例を示す断面図である。
本実施の形態では、実施の形態1と異なる方法でSOI基板を作製する方法を説明する。図5はSOI基板の作製方法の一例を示す断面図である。
本実施の形態では、実施の形態1と異なる方法でSOI基板を作製する方法を説明する。図6はSOI基板の作製方法の一例を示す断面図である。
実施の形態1乃至5のいずれか1の作製方法で作製したSOI基板を用いて、各種の半導体装置を作製することができる。本実施の形態では、半導体装置を作製する方法を説明する。
102 絶縁層
102a 絶縁膜
102b 絶縁膜
104 接合層
111 半導体基板
111A 半導体基板
112 絶縁層
112a 絶縁膜
112b 絶縁膜
113 損傷領域
114 接合層
115A 半導体層
115B 半導体層
115C 半導体層
115E 半導体層
115F 半導体層
115G 半導体層
115H 半導体層
115J 半導体層
115K 半導体層
115L 半導体層
115M 半導体層
115N 半導体層
116A ゲッタリングサイト層
116B ゲッタリングサイト層
117A ゲッタリングサイト領域
117B ゲッタリングサイト領域
118 保護膜
121 イオンビーム
122 レーザ光
123 イオンビーム
131 SOI基板
132 SOI基板
133 SOI基板
134 SOI基板
135 SOI基板
136 SOI基板
137 SOI基板
151 半導体層
152 半導体層
154 絶縁層
155 ゲート電極
156 ゲート電極
157 低濃度不純物領域
158 チャネル形成領域
159 高濃度不純物領域
160 チャネル形成領域
161 サイドウォール絶縁層
162 サイドウォール絶縁層
165 レジスト
167 高濃度不純物領域
168 絶縁層
169 層間絶縁層
170 配線
200 マイクロプロセッサ
201 演算回路
202 演算回路制御部
203 命令解析部
204 制御部
205 タイミング制御部
206 レジスタ
207 レジスタ制御部
208 バスインターフェース
209 読み出し専用メモリ(ROM)
210 ROMインターフェース
211 RFCPU
212 アナログ回路部
213 デジタル回路部
214 共振回路
215 整流回路
216 定電圧回路
217 リセット回路
218 発振回路
219 復調回路
220 変調回路
221 RFインターフェース
222 制御レジスタ
223 クロックコントローラ
224 CPUインターフェース
225 中央処理ユニット(CPU)
226 ランダムアクセスメモリ(RAM)
227 読み出し専用メモリ(ROM)
228 アンテナ
229 容量部
230 電源管理回路
301 マザーガラス
302 半導体層
310 表示パネル形成領域
311 走査線駆動回路形成領域
312 信号線駆動回路形成領域
313 画素形成領域
320 半導体層
322 走査線
323 信号線
324 画素電極
325 TFT
327 層間絶縁膜
328 電極
329 柱状スペーサ
330 配向膜
332 対向基板
333 対向電極
334 配向膜
335 液晶層
341 チャネル形成領域
342 高濃度不純物領域
401 選択用トランジスタ
402 表示制御用トランジスタ
403 半導体層
404 半導体層
405 走査線
406 信号線
407 電流供給線
408 画素電極
411 電極
412 ゲート電極
413 電極
427 層間絶縁膜
428 隔壁層
429 EL層
430 対向電極
431 対向基板
432 樹脂層
451 チャネル形成領域
452 高濃度不純物領域
901 携帯電話機
902 表示部
903 操作スイッチ
911 デジタルプレーヤー
912 表示部
913 操作部
914 イヤホン
921 電子ブック
922 表示部
923 操作スイッチ
Claims (6)
- ベース基板と半導体基板とを用意する第1の工程を行い、
前記半導体基板の表面に絶縁層を設ける第2の工程を行い、
前記絶縁層を介して、前記半導体基板にイオンビームを照射し、前記半導体基板に損傷領域を設ける第3の工程を行い、
前記絶縁層の上方に接合層を設ける第4の工程を行い、
前記接合層を介して前記ベース基板と前記半導体基板とを貼り合わせ、前記損傷領域で前記半導体基板の一部を分割し、前記ベース基板の上方に前記接合層と前記絶縁層と半導体層とを設ける第5の工程を行い、
前記半導体層の上方に、第18族元素を有する半導体層を設ける第6の工程を行い、
前記半導体層と、前記第18族元素を有する半導体層と、に熱を加える第7の工程を行い、
前記第18族元素を有する半導体層を除去する第8の工程を行い、
(A)前記第3の工程において、前記半導体基板に金属が添加されてしまい、
前記第7の工程において、前記金属を前記第18族元素を有する半導体層にゲッタリングし、
(B)前記イオンビームは、H + とH 2 + とH 3 + とを有し、
前記H + と前記H 2 + と前記H 3 + との総量に対する前記H 3 + の割合は70%以上であることを特徴とするSOI基板の作製方法。 - 請求項1において、
前記ベース基板は、アルカリ金属又はアルカリ土類金属を有し、
前記絶縁層は、窒化シリコン膜を有し、
前記絶縁層は、前記窒化シリコン膜と前記半導体基板との間に、酸化シリコン膜、酸化窒化シリコン膜、又は、熱酸化膜を有することを特徴とするSOI基板の作製方法。 - 請求項1において、
前記ベース基板は、アルカリ金属又はアルカリ土類金属を有し、
前記絶縁層は、窒化酸化シリコン膜を有し、
前記絶縁層は、前記窒化酸化シリコン膜と前記半導体基板との間に、酸化シリコン膜、酸化窒化シリコン膜、又は、熱酸化膜を有することを特徴とするSOI基板の作製方法。 - 請求項1において、
前記ベース基板は、アルカリ金属又はアルカリ土類金属を有し、
前記絶縁層は、窒化アルミニウム膜を有し、
前記絶縁層は、前記窒化シリコン膜と前記半導体基板との間に、酸化シリコン膜、酸化窒化シリコン膜、又は、熱酸化膜を有することを特徴とするSOI基板の作製方法。 - 請求項1において、
前記ベース基板は、アルカリ金属又はアルカリ土類金属を有し、
前記絶縁層は、窒化酸化アルミニウム膜を有し、
前記絶縁層は、前記窒化酸化アルミニウム膜と前記半導体基板との間に、酸化シリコン膜、酸化窒化シリコン膜、又は、熱酸化膜を有することを特徴とするSOI基板の作製方法。 - 請求項1乃至請求項5のいずれか一項において、
前記第8の工程よりも後に、前記半導体層に希ガスを吹き付けながら、前記半導体層にレーザ光を照射する第9の工程を行うことを特徴とするSOI基板の作製方法。
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CN101281912B (zh) * | 2007-04-03 | 2013-01-23 | 株式会社半导体能源研究所 | Soi衬底及其制造方法以及半导体装置 |
CN102592977B (zh) * | 2007-06-20 | 2015-03-25 | 株式会社半导体能源研究所 | 半导体装置的制造方法 |
JP5325404B2 (ja) * | 2007-09-21 | 2013-10-23 | 株式会社半導体エネルギー研究所 | Soi基板の作製方法 |
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US20090004821A1 (en) | 2009-01-01 |
KR20080114525A (ko) | 2008-12-31 |
KR101478812B1 (ko) | 2015-01-02 |
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