JP6681117B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
- Publication number
- JP6681117B2 JP6681117B2 JP2016045474A JP2016045474A JP6681117B2 JP 6681117 B2 JP6681117 B2 JP 6681117B2 JP 2016045474 A JP2016045474 A JP 2016045474A JP 2016045474 A JP2016045474 A JP 2016045474A JP 6681117 B2 JP6681117 B2 JP 6681117B2
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- JP
- Japan
- Prior art keywords
- insulating film
- semiconductor layer
- film
- oxide
- oxide semiconductor
- Prior art date
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Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- 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
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/04—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS
- G11C16/0466—Erasable programmable read-only memories electrically programmable using variable threshold transistors, e.g. FAMOS comprising cells with charge storage in an insulating layer, e.g. metal-nitride-oxide-silicon [MNOS], silicon-oxide-nitride-oxide-silicon [SONOS]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- 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
- H01L27/04—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
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Description
本実施の形態では、記憶装置としての機能を有する半導体装置の一例を、図面を用いて説明する。
本実施の形態では、実施の形態1で説明した半導体装置の作製方法について図3乃至図8を用いて説明する。
本実施の形態では、実施の形態1とは異なる構造の半導体装置について、図9(A)及び図9(B)を用いて説明する。図9(A)はチャネル長方向の断面図であり、図9(B)はチャネル幅方向の断面図である。
本実施の形態では、実施の形態1とは異なる構造の半導体装置について、図10(A)及び図10(B)を用いて説明する。図10(A)はチャネル長方向の断面図であり、図10(B)はチャネル幅方向の断面図である。
本実施の形態では、実施の形態1とは異なる構造の半導体装置について、図11(A)及び図11(B)を用いて説明する。図11(A)はチャネル長方向の断面図であり、図11(B)はチャネル幅方向の断面図である。
本実施の形態では、実施の形態1とは異なる構造の半導体装置について、図12(A)及び図12(B)を用いて説明する。図12(A)はチャネル長方向の断面図であり、図12(B)はチャネル幅方向の断面図である。
本実施の形態では、実施の形態1で説明した記憶装置を含むCPUについて説明する。
本実施の形態では、上述の実施の形態で説明した記憶装置を電子部品に適用する例について、図14を用いて説明する。
本実施の形態では、他の実施の形態で説明した記憶装置、トランジスタ、またはCPU等(DSP、カスタムLSI、PLD、RF−IDを含む)を用いることのできる電子機器の例について説明する。
101 配線
102 配線
103 配線
104 配線
110 第1のトランジスタ
120 第2のトランジスタ
130 ドライバ
140 ドライバ
150 ドライバ
160 ドライバ
201 基板
202 絶縁膜
203 第1の酸化物半導体層
204 第1の層間絶縁膜
205a 導電層
205b 導電層
206 第1のゲート絶縁膜
207 第1のゲート電極
208 第2の酸化物半導体層
209 導電層
210 第2のゲート絶縁膜
211 第2のゲート電極
212 第2の層間絶縁膜
213a 配線
213b 配線
214 第3の層間絶縁膜
215a 配線
215b 配線
220 レジストマスク
230 レジストマスク
303 酸化物半導体膜
304 導電膜
305 導電層
406 絶縁膜
407 導電膜
501 導電膜
700 電子部品
701 リード
702 プリント基板
703 回路部
704 回路基板
721 第2のゲート電極
901 第1のゲート絶縁膜
902 第1のゲート電極
903 第2の酸化物半導体層
904 導電層
905 第2のゲート絶縁膜
906 第2のゲート電極
1001 第1の金属酸化物層
1002 第2の金属酸化物層
1003 第3の金属酸化物層
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
8000 テレビジョン装置
8001 筐体
8002 表示部
8003 スピーカ部
8004 CPU
8100 警報装置
8101 マイクロコンピュータ
8102 検出部
8200 室内機
8201 筐体
8202 送風口
8203 CPU
8204 室外機
8300 電気冷凍冷蔵庫
8301 筐体
8302 冷蔵室用扉
8303 冷凍室用扉
8304 CPU
9700 電気自動車
9701 二次電池
9702 回路
9703 駆動装置
9704 処理装置
Claims (4)
- 第1の半導体層と、
前記第1の半導体層上に開口部を有する層間膜と、
前記開口部を介して前記第1の半導体層の上面に接する第1のゲート絶縁膜と、
前記第1のゲート絶縁膜上に第1のゲート電極と、
前記第1のゲート電極上及び前記第1のゲート絶縁膜と接する第2の半導体層と、
前記第2の半導体層上に導電層と、
前記第2の半導体層及び前記導電層を覆う第2のゲート絶縁膜と、
前記第2のゲート絶縁膜を介して前記第2の半導体層の側面の少なくとも一部を覆う第2のゲート電極と、を有し、
前記層間膜の上面、前記第1のゲート絶縁膜の上面、及び前記第1のゲート電極の上面が概略一致し、
前記第2の半導体層の端部と前記導電層の端部が一致もしくは概略一致する半導体装置。 - 第1の半導体層と、
前記第1の半導体層上に一対の電極と、
前記一対の電極上には開口部を有する層間膜と、
前記開口部を介して前記第1の半導体層の上面に接する第1のゲート絶縁膜と、
前記第1のゲート絶縁膜上に第1のゲート電極と、
前記第1のゲート電極上及び前記第1のゲート絶縁膜と接する第2の半導体層と、
前記第2の半導体層上に導電層と、
前記第2の半導体層及び前記導電層を覆う第2のゲート絶縁膜と、
前記第2のゲート絶縁膜を介して前記第2の半導体層の側面の少なくとも一部を覆う第2のゲート電極と、を有し、
前記層間膜の上面、前記第1のゲート絶縁膜の上面、及び前記第1のゲート電極の上面が概略一致し、
前記第2の半導体層の端部と前記導電層の端部が一致もしくは概略一致する半導体装置。 - 請求項1または請求項2において、
前記第1の半導体層及び前記第2の半導体層は酸化物半導体層である半導体装置。 - 請求項3において、
前記酸化物半導体層はc軸配向性を有する結晶を有する半導体装置。
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