JP2011192979A - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP2011192979A JP2011192979A JP2011031688A JP2011031688A JP2011192979A JP 2011192979 A JP2011192979 A JP 2011192979A JP 2011031688 A JP2011031688 A JP 2011031688A JP 2011031688 A JP2011031688 A JP 2011031688A JP 2011192979 A JP2011192979 A JP 2011192979A
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Abstract
【解決手段】複数のトランジスタが上下に積層されて設けられた素子において、少なくとも上部のトランジスタは、半導体特性を示す金属酸化物により設けられ、下部のトランジスタが有するゲート電極層を上部のトランジスタのチャネル形成領域と重畳するように配して、該ゲート電極層と同一の層の一部を上部のトランジスタのバックゲートとして機能させる。下部のトランジスタは、絶縁層で覆われた状態で平坦化処理が施され、ゲート電極が露出され、上部のトランジスタのソース電極及びドレイン電極となる層に接続されている。
【選択図】図1
Description
本実施の形態は、本発明の一態様である半導体装置について説明する。本実施の形態では、半導体装置として、具体的には記憶装置を挙げる。
本実施の形態は、本発明の一態様であって、実施の形態1とは異なる記憶素子について説明する。具体的には、実施の形態1における下部トランジスタを、上部トランジスタと同様の構成とする形態について図8を参照して説明する。
本実施の形態は、本発明の一態様であって、実施の形態1及び実施の形態2とは異なる素子について説明する。具体的には、実施の形態1と同様に作製することのできる反転素子について図9を参照して説明する。
本実施の形態は、本発明の一態様であって、実施の形態1乃至実施の形態3とは異なる素子について説明する。具体的には、実施の形態2と同様に作製することのできる反転素子について図10を参照して説明する。
本実施の形態は、本発明の一態様であって、実施の形態1乃至実施の形態4とは異なる素子について説明する。具体的には、実施の形態1と同様に作製することのできる、論理ゲートの一つであるNANDゲートについて図11を参照して説明する。
本実施の形態は、本発明の一態様であって、実施の形態1乃至実施の形態5とは異なる素子について説明する。具体的には、実施の形態2と同様に作製することのできる、論理ゲートの一つであるNANDゲートについて図12を参照して説明する。
本実施の形態は、本発明の一態様であって、実施の形態1乃至実施の形態6とは異なる素子について説明する。具体的には、実施の形態1と同様に作製することのできる、論理ゲートの一つであるNORゲートについて図13を参照して説明する。
本実施の形態は、本発明の一態様であって、実施の形態1乃至実施の形態7とは異なる素子について説明する。具体的には、実施の形態2と同様に作製することのできる、論理ゲートの一つであるNORゲートについて図14を参照して説明する。
次に、本発明の一態様である電子機器について説明する。本発明の一態様である電子機器には、実施の形態1乃至実施の形態8で説明した素子の少なくとも一つを搭載させる。本発明の一態様である電子機器として、例えば、コンピュータ、携帯電話機(携帯電話、携帯電話装置ともいう)、携帯情報端末(携帯型ゲーム機、音響再生装置なども含む)、デジタルカメラ、デジタルビデオカメラ、電子ペーパー、テレビジョン装置(テレビ、またはテレビジョン受信機ともいう)などが挙げられる。
102 トランジスタ
104 容量素子
111 第1の配線
112 第2の配線
113 第3の配線
114 第4の配線
115 第5の配線
116 基板
120 記憶素子
121 駆動回路
122 駆動回路
123 駆動回路
124 駆動回路
150 ベース基板
152 窒素含有層
160 ボンド基板
162 酸化膜
164 脆化領域
166 単結晶半導体層
168 半導体層
170 半導体層
172 絶縁層
174 ゲート電極
176 不純物領域
178 チャネル形成領域
180 層間絶縁層
182 導電層
184 半導体層
186 絶縁層
188 導電層
200 トランジスタ
202 トランジスタ
204 容量素子
211 第1の配線
212 第2の配線
213 第3の配線
214 第4の配線
215 第5の配線
216 基板
300 トランジスタ
302 トランジスタ
311 第1の配線
312 第2の配線
313 第3の配線
314 第4の配線
316 基板
400 トランジスタ
402 トランジスタ
411 第1の配線
412 第2の配線
413 第3の配線
414 第4の配線
416 基板
500 トランジスタ
502 トランジスタ
504 トランジスタ
506 トランジスタ
511 第1の配線
512 第2の配線
513 第3の配線
514 第4の配線
515 第5の配線
516 基板
600 トランジスタ
602 トランジスタ
604 トランジスタ
611 第1の配線
612 第2の配線
613 第3の配線
614 第4の配線
615 第5の配線
616 基板
700 トランジスタ
702 トランジスタ
704 トランジスタ
706 トランジスタ
711 第1の配線
712 第2の配線
713 第3の配線
714 第4の配線
715 第5の配線
716 基板
800 トランジスタ
802 トランジスタ
804 トランジスタ
811 第1の配線
812 第2の配線
813 第3の配線
814 第4の配線
815 第5の配線
816 基板
901 筐体
902 筐体
903 表示部
904 キーボード
911 本体
912 スタイラス
913 表示部
914 操作ボタン
915 外部インターフェイス
920 電子書籍
921 筐体
923 筐体
925 表示部
927 表示部
931 電源
933 操作キー
935 スピーカー
937 軸部
940 筐体
941 筐体
942 表示パネル
943 スピーカー
944 マイクロフォン
945 操作キー
946 ポインティングデバイス
947 カメラ用レンズ
948 外部接続端子
949 太陽電池セル
950 外部メモリスロット
961 本体
963 接眼部
964 操作スイッチ
965 表示部
966 バッテリー
967 表示部
970 テレビジョン装置
971 筐体
973 表示部
975 スタンド
980 リモコン操作機
Claims (5)
- 複数のトランジスタが上下に積層して設けられた素子であって、
素子の下部にシリコンによりチャネル形成領域が設けられた第1のトランジスタと、
素子の上部に酸化物半導体によりチャネル形成領域が設けられた第2のトランジスタと、を有し、
前記第1のトランジスタのゲート電極層と同一の層の一部により前記第2のトランジスタのバックゲートが設けられていることを特徴とする素子。 - 複数のトランジスタが上下に積層して設けられた素子であって、
素子の下部のシリコン半導体層にチャネル形成領域が設けられた第1のトランジスタと、
素子の上部の酸化物半導体層にチャネル形成領域が設けられた第2のトランジスタと、を有し、
前記第1のトランジスタのゲート電極層は、前記第1のトランジスタを覆う絶縁層から露出されて前記第2のトランジスタのソース電極層またはドレイン電極層と接続され、
前記第1のトランジスタのゲート電極層と同一の層の一部により前記第2のトランジスタにバックゲートが設けられていることを特徴とする素子。 - 請求項2において、
前記第2のトランジスタの前記バックゲートは、前記絶縁層を介して少なくとも前記酸化物半導体層のチャネル形成領域と重畳して設けられていることを特徴とする素子。 - 請求項2または請求項3において、
前記絶縁層の前記第2のトランジスタのバックゲートと重畳する部分の膜厚は、前記シリコン半導体層の膜厚に起因することを特徴とする素子。 - 請求項1乃至請求項4のいずれか一に記載の素子が、記憶素子または反転素子として機能することを特徴とする電子機器。
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