JP2011129891A - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
- Publication number
- JP2011129891A JP2011129891A JP2010250638A JP2010250638A JP2011129891A JP 2011129891 A JP2011129891 A JP 2011129891A JP 2010250638 A JP2010250638 A JP 2010250638A JP 2010250638 A JP2010250638 A JP 2010250638A JP 2011129891 A JP2011129891 A JP 2011129891A
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- Prior art keywords
- layer
- electrode layer
- oxide semiconductor
- transistor
- insulating layer
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Images
Classifications
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- 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
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Abstract
【解決手段】当該半導体装置は、電力供給源となる電池と、特定の回路とがチャネル形成領域が酸化物半導体によって構成されるトランジスタを介して電気的に接続することによって解決することができる。当該酸化物半導体の水素濃度は、5×1019(atoms/cm3)以下である。そのため、当該トランジスタのリーク電流を低減することができる。その結果、当該半導体装置の待機時の消費電力を低減することができる。また、これにより当該半導体装置を長寿命化することができる。
【選択図】図1
Description
本実施の形態では、半導体装置の一例について説明する。具体的には、電池を電力供給源とした無線通信機能を有する半導体装置の一例について図1を参照して説明する。
なお、上述した半導体装置は、本実施の形態の半導体装置の一例であり、上述した半導体装置と異なる点を有する半導体装置も本実施の形態には含まれる。
本実施の形態では、半導体装置の一例について説明する。具体的には、電池を電力供給源とした無線通信機能を有する半導体装置の一例について図2を参照して説明する。
なお、上述した半導体装置は、本実施の形態の半導体装置の一例であり、上述した半導体装置と異なる点を有する半導体装置も本実施の形態には含まれる。
本実施の形態では、半導体装置の一例について説明する。具体的には、二次電池を電力供給源とした無線通信機能を有する半導体装置の一例について図3を参照して説明する。
なお、上述した半導体装置は、本実施の形態の半導体装置の一例であり、上述した半導体装置と異なる点を有する半導体装置も本実施の形態には含まれる。
本実施の形態では、半導体装置の一例について説明する。具体的には、二次電池を電力供給源とした無線通信機能を有する半導体装置の一例について図4を参照して説明する。
本実施の形態では、実施の形態1乃至4に示した半導体装置が有するトランジスタの一例について説明する。具体的には、当該半導体装置が有するP型トランジスタとして、半導体材料を含む基板を用いて形成されるトランジスタを適用し、N型トランジスタとして、酸化物半導体を用いて形成されるトランジスタを適用する例を示す。
本実施の形態の半導体装置が有するP型トランジスタ及びN型トランジスタを図7に示す。
次に、P型トランジスタ160及びN型トランジスタ164の作製方法の一例について説明する。以下では、はじめにP型トランジスタ160の作製方法について図8を参照して説明し、その後、N型トランジスタ164の作製方法について図9および図10を参照して説明する。
図11乃至図14には、N型トランジスタ164の構成の変形例を示す。つまり、P型トランジスタ160の構成は上記と同様である。
本実施の形態では、実施の形態1乃至4に示した半導体装置が有するトランジスタの一例について説明する。具体的には、チャネル形成領域が酸化物半導体によって構成されるトランジスタの一例について説明する。
本実施の形態では、実施の形態1乃至4に示した半導体装置が有するトランジスタの一例について説明する。具体的には、チャネル形成領域が酸化物半導体によって構成されるトランジスタの一例について説明する。
本実施の形態では、実施の形態1乃至4に示した半導体装置が有するトランジスタの一例について説明する。具体的には、チャネル形成領域が酸化物半導体によって構成されるトランジスタの一例について説明する。
本実施の形態では、実施の形態1乃至4に示した半導体装置の使用例について図19を参照して説明する。
11 電池
12 復調回路
13 信号処理部
14 パワー制御回路
15 トランジスタ
20 アンテナ
21 電池
22 タイマー
23 信号処理部
24 パワー制御回路
25 トランジスタ
30 アンテナ
31 二次電池
32 整流回路
33 充電回路
34 安定化電源回路
35 復調回路
36 信号処理部
37 パワー制御回路
38 トランジスタ
40 アンテナ
41 二次電池
42 整流回路
43 充電回路
44 安定化電源回路
45 復調回路
46 信号処理部
47 パワー制御回路
48 論理回路
49 クロック生成回路
50 センサ
51 メモリ回路
52 変調回路
80 P型トランジスタ
81 N型トランジスタ
82 N型トランジスタ
83 P型トランジスタ
84 P型トランジスタ
85 N型トランジスタ
86 N型トランジスタ
87 N型トランジスタ
88 P型トランジスタ
89 P型トランジスタ
90 N型トランジスタ
91 N型トランジスタ
92 N型トランジスタ
100 基板
102 保護層
104 半導体領域
106 素子分離絶縁層
108a ゲート絶縁層
108b 絶縁層
110a ゲート電極層
110b 電極層
112 絶縁層
114a 不純物領域
114b 不純物領域
116 チャネル形成領域
118 サイドウォール絶縁層
120a 高濃度不純物領域
120b 高濃度不純物領域
122 金属層
124a 金属化合物領域
124b 金属化合物領域
126 層間絶縁層
128 層間絶縁層
130a ソース電極層
130b ドレイン電極層
130c 電極層
132 絶縁層
134 導電層
136a 電極層
136b 電極層
136c 電極層
136d ゲート電極層
138 ゲート絶縁層
140 酸化物半導体層
142a ソース電極層
142b ドレイン電極層
144 保護絶縁層
146 層間絶縁層
148 導電層
150a 電極層
150b 電極層
150c 電極層
150d 電極層
150e 電極層
152 絶縁層
154a 電極層
154b 電極層
154c 電極層
154d 電極層
160 P型トランジスタ
164 N型トランジスタ
320 基板
322 ゲート絶縁層
323 保護絶縁層
332 酸化物半導体層
360 トランジスタ
361 ゲート電極層
362 酸化物半導体層
363 チャネル形成領域
364a ソース領域
364b ドレイン領域
365a ソース電極層
365b ドレイン電極層
366 酸化物絶縁層
390 トランジスタ
391 ゲート電極層
392 酸化物半導体層
393 酸化物半導体膜
394 基板
395a ソース電極層
395b ドレイン電極層
396 酸化物絶縁層
397 ゲート絶縁層
398 保護絶縁層
399 酸化物半導体層
423 開口
450 基板
452 ゲート絶縁層
457 絶縁層
460 トランジスタ
461 ゲート電極層
461a ゲート電極層
461b ゲート電極層
462 酸化物半導体層
464 配線層
465a ソース電極層又はドレイン電極層
465a1 ソース電極層又はドレイン電極層
465a2 ソース電極層又はドレイン電極層
465b ソース電極層又はドレイン電極層
468 配線層
1500 半導体装置
Claims (6)
- アンテナと、
電池と、
前記アンテナから入力される信号を復調する復調回路と、
前記復調回路から入力される信号及び前記電池から供給される電源電圧を用いて動作する信号処理部と、
前記復調回路から入力される信号によって制御されるパワー制御回路と、を有し、
前記信号処理部は、
前記パワー制御回路から入力される信号によってスイッチングが制御されるトランジスタと、
前記トランジスタを介して前記電池の陽極又は陰極に電気的に接続された機能回路と、を有し、
前記トランジスタのチャネル形成領域は、水素濃度が5×1019(atoms/cm3)以下の酸化物半導体によって構成される半導体装置。 - アンテナと、
電池と、
定期的に信号を出力するタイマーと、
前記タイマーから入力される信号及び前記電池から供給される電源電圧を用いて動作する信号処理部と、
前記タイマーから入力される信号によって制御されるパワー制御回路と、を有し、
前記信号処理部は、
前記パワー制御回路から入力される信号によってスイッチングが制御されるトランジスタと、
前記トランジスタを介して前記電池の陽極又は陰極に電気的に接続された機能回路と、を有し、
前記トランジスタのチャネル形成領域は、水素濃度が5×1019(atoms/cm3)以下の酸化物半導体によって構成される半導体装置。 - 請求項1又は請求項2において、
前記電池が二次電池であり、
前記アンテナから入力される信号を整流する整流回路と、
前記整流回路から入力される信号を用いて前記二次電池を充電する充電回路と、
前記二次電池を用いて前記電源電圧を生成する安定化電源回路と、を有する半導体装置。 - 請求項1乃至請求項3のいずれか一項において、
前記信号処理部が論理ゲートを有し、
前記トランジスタによって、前記論理ゲートと、前記電池の陰極との電気的な接続が制御される半導体装置。 - 請求項4において、
前記論理ゲートがN型トランジスタによって構成され、
前記N型トランジスタのチャネル形成領域は、前記酸化物半導体によって構成される半導体装置。 - 請求項4において、
前記論理ゲートがP型トランジスタ及びN型トランジスタによって構成され、
前記P型トランジスタのチャネル形成領域は、シリコンを主構成元素とする半導体によって構成され、
前記N型トランジスタのチャネル形成領域は、前記シリコンを主構成元素とする半導体又は前記酸化物半導体によって構成される半導体装置。
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R250 | Receipt of annual fees |
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R250 | Receipt of annual fees |
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R250 | Receipt of annual fees |
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