JP5836552B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP5836552B2 JP5836552B2 JP2012001840A JP2012001840A JP5836552B2 JP 5836552 B2 JP5836552 B2 JP 5836552B2 JP 2012001840 A JP2012001840 A JP 2012001840A JP 2012001840 A JP2012001840 A JP 2012001840A JP 5836552 B2 JP5836552 B2 JP 5836552B2
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Description
本実施の形態では、リーク電流の低減が可能なトランジスタの構造及び作製方法について、図1乃至図3を用いて説明する。
本実施の形態では、実施の形態1と異なる作製方法により、図1に示すトランジスタを作製する方法について、図3及び図4を用いて説明する。
本実施の形態では、実施の形態1及び実施の形態2と異なるトランジスタの作製方法について、図3、図5及び図6を用いて説明する。ここでは、実施の形態1に示すトランジスタの作製方法の別形態として説明するが、実施の形態2を適宜適用することができる。なお、図6は、絶縁膜145の作製工程における上面図であり、図5(A)は図6の一点鎖線A−Bの断面図に相当する。
本実施の形態では、実施の形態1及び実施の形態2と異なる構造のトランジスタの構造及び作製方法について、図2、図3、図7、及び図8を用いて説明する。ここでは、実施の形態1に示すトランジスタの作製方法の別形態として説明するが、実施の形態2に適宜適用することができる。
本実施の形態では、実施の形態1乃至実施の形態4と異なる構造のトランジスタ及びその作製方法について、図9乃至図11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5と異なる構造のトランジスタについて、図12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6と異なる保護膜の作製方法について、図13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7に示す酸化物半導体膜103、192にCAAC酸化物半導体を用いて形成する方法について、説明する。なお、ここでは酸化物半導体膜103を用いて説明する。
図14(A)に半導体装置を構成する記憶素子(以下、メモリセルとも記す)の回路図の一例を示す。メモリセルは、酸化物半導体以外の材料(例えば、シリコン、ゲルマニウム、炭化シリコン、ガリウムヒ素、窒化ガリウム、有機化合物など)をチャネル形成領域に用いたトランジスタ1160と酸化物半導体をチャネル形成領域に用いたトランジスタ1162によって構成される。
本実施の形態では、容量素子を有するメモリセルの回路図の一例を示す。図16(A)に示すメモリセル1170は、第1の配線SL、第2の配線BL、第3の配線S1、第4の配線S2と、第5の配線WLと、トランジスタ1171(第1のトランジスタ)と、トランジスタ1172(第2のトランジスタ)と、容量素子1173とから構成されている。トランジスタ1171は、酸化物半導体以外の材料をチャネル形成領域に用いており、トランジスタ1172はチャネル形成領域に酸化物半導体を用いている。
本実施の形態では、先の実施の形態に示すトランジスタを用いた半導体装置の例について、図17を参照して説明する。
酸化物半導体をチャネル形成領域に用いたトランジスタ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。
実施の形態1乃至実施の形態8で例示したトランジスタを用いた表示装置の一形態を図19に示す。
Claims (6)
- 酸化物半導体膜と、
前記酸化物半導体膜の下方にある、第1の絶縁膜と、
前記酸化物半導体膜の上方にある、第2の絶縁膜と、を有し、
前記第1の絶縁膜は、昇温脱離ガス分光法分析にて、酸素の放出量が1.0×10 18 atoms/cm 3 以上であり、
前記第1の絶縁膜は、前記酸化物半導体膜の全体と重なり、
前記第2の絶縁膜は、前記酸化物半導体膜の端部と重なることを特徴とする半導体装置。 - 酸化物半導体膜と、
前記酸化物半導体膜の下方にある、第1の絶縁膜と、
前記酸化物半導体膜の上方にある、第2の絶縁膜と、を有し、
前記第1の絶縁膜及び前記第2の絶縁膜はそれぞれ、昇温脱離ガス分光法分析にて、酸素の放出量が1.0×10 18 atoms/cm 3 以上であり、
前記第1の絶縁膜は、前記酸化物半導体膜の全体と重なり、
前記第2の絶縁膜は、前記酸化物半導体膜の端部と重なることを特徴とする半導体装置。 - 請求項1又は請求項2において、
前記第1の絶縁膜は、酸素が過剰な酸化絶縁膜を有することを特徴とする半導体装置。 - 請求項1乃至請求項3のいずれか一において、
前記第1の絶縁膜は、酸化シリコン、酸化窒化シリコン、窒化酸化シリコン、酸化アルミニウム、酸化窒化アルミニウム、酸化ガリウム、酸化ハフニウム、又は酸化イットリウムを有することを特徴とする半導体装置。 - 請求項1乃至請求項4のいずれか一において、
前記酸化物半導体膜と電気的に接続された、ソース電極と、
前記酸化物半導体膜と電気的に接続された、ドレイン電極とを有し、
前記ソース電極は、前記酸化物半導体膜の端部と接せず、
前記ドレイン電極は、前記酸化物半導体膜の端部と接しないことを特徴とする半導体装置。 - 請求項1乃至請求項5のいずれか一において、
前記酸化物半導体膜は、Inと、Gaと、Znと、を有し、
前記酸化物半導体膜は、結晶を有し、
前記結晶は、前記酸化物半導体膜の表面に垂直な方向と沿うように配向したc軸を有することを特徴とする半導体装置。
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| Application Number | Priority Date | Filing Date | Title |
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| JP2012001840A JP5836552B2 (ja) | 2011-01-12 | 2012-01-10 | 半導体装置 |
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| JP2011004423 | 2011-01-12 | ||
| JP2011004423 | 2011-01-12 | ||
| JP2012001840A JP5836552B2 (ja) | 2011-01-12 | 2012-01-10 | 半導体装置 |
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| JP2012160720A JP2012160720A (ja) | 2012-08-23 |
| JP2012160720A5 JP2012160720A5 (ja) | 2014-11-27 |
| JP5836552B2 true JP5836552B2 (ja) | 2015-12-24 |
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| JP2012001840A Expired - Fee Related JP5836552B2 (ja) | 2011-01-12 | 2012-01-10 | 半導体装置 |
| JP2015216220A Withdrawn JP2016028455A (ja) | 2011-01-12 | 2015-11-03 | 半導体装置 |
| JP2017162000A Active JP6411600B2 (ja) | 2011-01-12 | 2017-08-25 | 半導体装置 |
| JP2018179687A Expired - Fee Related JP6613354B2 (ja) | 2011-01-12 | 2018-09-26 | 半導体装置の作製方法 |
| JP2019150882A Active JP6644942B2 (ja) | 2011-01-12 | 2019-08-21 | 半導体装置 |
| JP2019185067A Active JP6726347B2 (ja) | 2011-01-12 | 2019-10-08 | 半導体装置 |
| JP2020070278A Active JP6781353B2 (ja) | 2011-01-12 | 2020-04-09 | 半導体装置 |
| JP2020173762A Withdrawn JP2021013036A (ja) | 2011-01-12 | 2020-10-15 | トランジスタ及び半導体装置 |
| JP2021100078A Active JP7033687B2 (ja) | 2011-01-12 | 2021-06-16 | トランジスタの作製方法 |
| JP2022029093A Active JP7472181B2 (ja) | 2011-01-12 | 2022-02-28 | 半導体装置 |
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| KR101056229B1 (ko) * | 2009-10-12 | 2011-08-11 | 삼성모바일디스플레이주식회사 | 박막 트랜지스터, 그의 제조 방법 및 박막 트랜지스터를 구비하는 유기전계발광 표시 장치 |
| CN102687400B (zh) * | 2009-10-30 | 2016-08-24 | 株式会社半导体能源研究所 | 逻辑电路和半导体装置 |
| KR101652790B1 (ko) * | 2009-11-09 | 2016-08-31 | 삼성전자주식회사 | 트랜지스터와 그 제조방법 및 트랜지스터를 포함하는 전자소자 |
| US20120178224A1 (en) | 2011-01-12 | 2012-07-12 | Semiconductor Energy Laboratory Co., Ltd. | Method for manufacturing semiconductor device |
| US8536571B2 (en) | 2011-01-12 | 2013-09-17 | Semiconductor Energy Laboratory Co., Ltd. | Manufacturing method of semiconductor device |
| TWI535032B (zh) | 2011-01-12 | 2016-05-21 | 半導體能源研究所股份有限公司 | 半導體裝置的製造方法 |
| US8912080B2 (en) | 2011-01-12 | 2014-12-16 | Semiconductor Energy Laboratory Co., Ltd. | Manufacturing method of the semiconductor device |
| US8921948B2 (en) | 2011-01-12 | 2014-12-30 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device and manufacturing method thereof |
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| JP2020017754A (ja) | 2020-01-30 |
| KR20120090781A (ko) | 2012-08-17 |
| US20140284599A1 (en) | 2014-09-25 |
| US9349752B2 (en) | 2016-05-24 |
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| JP7472181B2 (ja) | 2024-04-22 |
| JP6411600B2 (ja) | 2018-10-24 |
| US8785266B2 (en) | 2014-07-22 |
| JP6781353B2 (ja) | 2020-11-04 |
| JP2020113794A (ja) | 2020-07-27 |
| JP7741233B2 (ja) | 2025-09-17 |
| JP6613354B2 (ja) | 2019-11-27 |
| KR101940315B1 (ko) | 2019-01-18 |
| US20120175609A1 (en) | 2012-07-12 |
| JP2018006764A (ja) | 2018-01-11 |
| JP2019004180A (ja) | 2019-01-10 |
| JP2012160720A (ja) | 2012-08-23 |
| JP2022063364A (ja) | 2022-04-21 |
| JP2021153194A (ja) | 2021-09-30 |
| TWI570809B (zh) | 2017-02-11 |
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