JP6093564B2 - 半導体装置の作製方法 - Google Patents
半導体装置の作製方法 Download PDFInfo
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- JP6093564B2 JP6093564B2 JP2012277604A JP2012277604A JP6093564B2 JP 6093564 B2 JP6093564 B2 JP 6093564B2 JP 2012277604 A JP2012277604 A JP 2012277604A JP 2012277604 A JP2012277604 A JP 2012277604A JP 6093564 B2 JP6093564 B2 JP 6093564B2
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- Prior art keywords
- insulating film
- film
- oxygen
- oxide semiconductor
- transistor
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- 238000000034 method Methods 0.000 title claims description 139
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- 229910052760 oxygen Inorganic materials 0.000 claims description 203
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- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 16
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 description 16
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- 229910052754 neon Inorganic materials 0.000 description 3
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02296—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer
- H01L21/02318—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment
- H01L21/02321—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment introduction of substances into an already existing insulating layer
- H01L21/02323—Forming insulating materials on a substrate characterised by the treatment performed before or after the formation of the layer post-treatment introduction of substances into an already existing insulating layer introduction of oxygen
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- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02551—Group 12/16 materials
- H01L21/02554—Oxides
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
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- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02612—Formation types
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- H01L21/02631—Physical deposition at reduced pressure, e.g. MBE, sputtering, evaporation
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- H01L21/02104—Forming layers
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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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- H01L21/18—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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- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
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- H01L21/34—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 not provided for in groups H01L21/0405, H01L21/0445, H01L21/06, H01L21/16 and H01L21/18 with or without impurities, e.g. doping materials
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- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/78603—Thin film transistors, i.e. transistors with a channel being at least partly a thin film characterised by the insulating substrate or support
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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
- H01L29/786—Thin film transistors, i.e. transistors with a channel being at least partly a thin film
- H01L29/7869—Thin film transistors, i.e. transistors with a channel being at least partly a thin film having a semiconductor body comprising an oxide semiconductor material, e.g. zinc oxide, copper aluminium oxide, cadmium stannate
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- 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
- H01L2021/775—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate comprising a plurality of TFTs on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
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- Condensed Matter Physics & Semiconductors (AREA)
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- High Energy & Nuclear Physics (AREA)
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Description
本実施の形態では、本発明の一態様に係るトランジスタについて図1乃至図4を用いて説明する。
本実施の形態では、実施の形態1とは異なる構造のトランジスタについて図5乃至図7を用いて説明する。
本実施の形態では、本発明の一態様に係るトランジスタについて図12乃至図14を用いて説明する。
本実施の形態では実施の形態1乃至実施の形態4のいずれかに示すトランジスタを用いて作製した液晶表示装置について説明する。なお、本実施の形態では液晶表示装置に本発明の一形態を適用した例について説明するが、これに限定されるものではない。例えば、発光装置の一つであるEL(Electro Luminescence)表示装置に本発明の一形態を適用することも、当業者であれば容易に想到し得るものである。
本実施の形態では、実施の形態1乃至実施の形態4のいずれかに示すトランジスタを用いて、半導体記憶装置を作製する例について説明する。
実施の形態1乃至実施の形態4のいずれかに示すトランジスタまたは実施の形態6に示した半導体記憶装置を少なくとも一部に用いてCPU(Central Processing Unit)を構成することができる。
本実施の形態では、実施の形態1乃至実施の形態7の少なくともいずれかを適用した電子機器の例について説明する。
102 下地絶縁膜
102a 下地絶縁膜
102b 下地絶縁膜
104 ゲート電極
105 ゲート電極
106 酸化物半導体膜
112 ゲート絶縁膜
116 一対の電極
140a 酸素
140b 酸素
204 ゲート電極
206 酸化物半導体膜
206a 領域
206b 領域
212 ゲート絶縁膜
213 ゲート絶縁膜
216 一対の電極
218 保護絶縁膜
234 導電膜
304 ゲート電極
306 酸化物半導体膜
306a 領域
306b 領域
310 側壁絶縁膜
311 側壁絶縁膜
312 ゲート絶縁膜
316 一対の電極
317 導電膜
318 保護絶縁膜
319 保護絶縁膜
320 絶縁膜
321 絶縁膜
322 絶縁膜
328 保護絶縁膜
334 導電膜
366 配線
402 下地絶縁膜
404 ゲート電極
406 酸化物半導体膜
412 ゲート絶縁膜
412a ゲート絶縁膜
412b ゲート絶縁膜
416 一対の電極
418 保護絶縁膜
440a 酸素
440b 酸素
1141 スイッチング素子
1142 記憶素子
1143 記憶素子群
1189 ROMインターフェース
1190 基板
1191 ALU
1192 ALUコントローラ
1193 インストラクションデコーダ
1194 インタラプトコントローラ
1195 タイミングコントローラ
1196 レジスタ
1197 レジスタコントローラ
1198 バスインターフェース
1199 ROM
2200 画素
2210 液晶素子
2220 キャパシタ
2230 トランジスタ
9300 筐体
9301 ボタン
9302 マイクロフォン
9303 表示部
9304 スピーカ
9305 カメラ
9310 筐体
9311 表示部
9320 筐体
9321 ボタン
9322 マイクロフォン
9323 表示部
9630 筐体
9631a 表示部
9631b 表示部
9633 留め具
9638 操作スイッチ
Claims (4)
- 下地絶縁膜を成膜し、
前記下地絶縁膜に第1の条件、第2の条件の順で酸素添加を行った後、前記下地絶縁膜上に酸化物半導体膜を形成し、
前記酸化物半導体膜上にゲート絶縁膜を成膜し、
前記ゲート絶縁膜上に前記酸化物半導体膜と重畳する領域を有するゲート電極を形成し、
前記第1の条件で行う酸素添加は、加速電圧が10kV以上100kV以下であるイオン注入法で行い、
前記第2の条件で行う酸素添加は、加速電圧が1kV以上10kV未満であるイオン注入法で行うことを特徴とする半導体装置の作製方法。 - 下地絶縁膜を成膜し、
前記下地絶縁膜上にゲート電極を形成し、
前記ゲート電極上にゲート絶縁膜を形成し、
前記ゲート絶縁膜上に、前記ゲート電極と重畳する領域を有する酸化物半導体膜を形成し、
前記酸化物半導体膜上に保護絶縁膜を形成し、
前記保護絶縁膜に第1の条件、第2の条件の順で酸素添加を行い、
前記第1の条件で行う酸素添加は、加速電圧が10kV以上100kV以下であるイオン注入法で行い、
前記第2の条件で行う酸素添加は、加速電圧が1kV以上10kV未満であるイオン注入法で行うことを特徴とする半導体装置の作製方法。 - 下地絶縁膜を成膜し、
前記下地絶縁膜上に酸化物半導体膜を形成し、
前記酸化物半導体膜上にゲート絶縁膜を成膜し、
前記ゲート絶縁膜に第1の条件、第2の条件の順で酸素添加を行った後、前記ゲート絶縁膜上に前記酸化物半導体膜と重畳する領域を有するゲート電極を形成し、
前記第1の条件で行う酸素添加は、加速電圧が10kV以上100kV以下であるイオン注入法で行い、
前記第2の条件で行う酸素添加は、加速電圧が1kV以上10kV未満であるイオン注入法で行うことを特徴とする半導体装置の作製方法。 - 下地絶縁膜を成膜し、
前記下地絶縁膜上にゲート電極を形成し、
前記ゲート電極上にゲート絶縁膜を形成し、
前記ゲート絶縁膜に第1の条件、第2の条件の順で酸素添加を行った後、前記ゲート絶縁膜上に、前記ゲート電極と重畳する領域を有する酸化物半導体膜を形成し、
前記酸化物半導体膜上に保護絶縁膜を形成し、
前記第1の条件で行う酸素添加は、加速電圧が10kV以上100kV以下であるイオン注入法で行い、
前記第2の条件で行う酸素添加は、加速電圧が1kV以上10kV未満であるイオン注入法で行うことを特徴とする半導体装置の作製方法。
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