JP6963463B2 - 半導体装置、電子部品、及び電子機器 - Google Patents
半導体装置、電子部品、及び電子機器 Download PDFInfo
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- JP6963463B2 JP6963463B2 JP2017208835A JP2017208835A JP6963463B2 JP 6963463 B2 JP6963463 B2 JP 6963463B2 JP 2017208835 A JP2017208835 A JP 2017208835A JP 2017208835 A JP2017208835 A JP 2017208835A JP 6963463 B2 JP6963463 B2 JP 6963463B2
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- circuit
- memory cell
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Images
Classifications
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- G11C16/06—Auxiliary circuits, e.g. for writing into memory
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- G11C11/403—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells with charge regeneration common to a multiplicity of memory cells, i.e. external refresh
- G11C11/405—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells with charge regeneration common to a multiplicity of memory cells, i.e. external refresh with three charge-transfer gates, e.g. MOS transistors, per cell
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- G11C11/401—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells
- G11C11/4063—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing
- G11C11/407—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing for memory cells of the field-effect type
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- G11C11/4087—Address decoders, e.g. bit - or word line decoders; Multiple line decoders
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- G11C11/407—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing for memory cells of the field-effect type
- G11C11/409—Read-write [R-W] circuits
- G11C11/4091—Sense or sense/refresh amplifiers, or associated sense circuitry, e.g. for coupled bit-line precharging, equalising or isolating
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Description
本実施の形態では、データを記憶(保持)することのできる半導体装置の構成および動作の一例について説明する。
図1は、半導体装置10の構成例を説明するための回路図である。
次いで半導体装置10の動作について説明する。
図6は、図1における半導体装置10の構成において、データ書き込み回路30およびデータ読み出し回路40の具体的な構成例を説明するための回路図である。
上述したメモリセル20は、所定のメモリセル20にデータを書き込む毎に、同じ書き込みワード線WWLに接続されたメモリセルに記憶したデータが消失してしまう。そのため、図7に一例として示すブロック図の構成とすることが好適である。
次いで半導体装置10として示す構成とは異なる変形例およびその動作について説明する。
図11(A)乃至(D)には、図1で説明したメモリセル20が取り得る回路構成の一例を示す。
本実施の形態では、半導体装置の断面構造について説明する。本実施の形態では、図11(D)で示したメモリセルに対応する半導体装置の断面構造について説明する。
図12に示す半導体装置は、トランジスタ27と、トランジスタ21、および容量素子26を有している。トランジスタ21はトランジスタ27の上方に設けられ、容量素子26はトランジスタ27、およびトランジスタ21の上方に設けられている。
上述したトランジスタ21に適用可能なOSトランジスタの一例について説明する。
また、本実施の形態の変形例の一例を、図14に示す。図14は、図12と、トランジスタ27の構成が異なる。
また、本実施の形態の変形例の一例を、図15に示す。図15は、図12と、容量素子26の構成が異なる。
本実施の形態では、半導体装置の一形態を、図16−図18を用いて説明する。
図16(A)は、ダイシング処理が行なわれる前の基板711の上面図を示している。基板711としては、例えば、半導体基板(「半導体ウエハ」ともいう。)を用いることができる。基板711上には、複数の回路領域712が設けられている。回路領域712には、本発明の一態様に係る半導体装置などを設けることができる。
チップ715を用いた電子部品の一例について、図17(A)および図17(B)、図18(A)−(E)を用いて説明する。なお、電子部品は、半導体パッケージ、またはIC用パッケージともいう。電子部品は、端子取り出し方向、端子の形状などに応じて、複数の規格、名称などが存在する。
<電子機器>
本発明の一態様に係る半導体装置を有する電子部品は、様々な電子機器に用いることができる。図19に、本発明の一態様に係る電子部品を用いた電子機器の具体例を示す。
以上の実施の形態、及び実施の形態における各構成の説明について、以下に付記する。
20 メモリセル
21 トランジスタ
22 トランジスタ
23 トランジスタ
30 回路
40 回路
41 容量素子
42 電位制御回路
43 アナログデジタル変換回路
Claims (8)
- データ書き込み回路と、データ読み出し回路と、メモリセルと、を有する半導体装置であって、
前記メモリセルは、第1のトランジスタと、第2のトランジスタと、を有し、
前記第1のトランジスタのソースまたはドレインの一方は、前記第2のトランジスタのゲートに電気的に接続され、
前記第1のトランジスタは、オフ状態とすることで、前記メモリセルで記憶する第1のデータに応じた電荷を保持する機能を有し、
前記データ書き込み回路は、前記第1のデータおよび補正用データを前記メモリセルに書き込む機能を有し、
前記データ読み出し回路は、前記第1のデータに対応する第1の電圧値を読み出した後、前記メモリセルに書き込まれた前記補正用データに対応する第2の電圧値を読み出し、前記第1の電圧値と前記第2の電圧値との差分に相当する電圧値を補正後の第1のデータに変換し、前記データ書き込み回路に出力する機能を有することを特徴とする半導体装置。 - 請求項1において、
読み出しビット線と、第3のトランジスタと、固定電位線と、を有し、
前記メモリセルおよび前記データ読み出し回路は、前記読み出しビット線に電気的に接続され、
前記第3のトランジスタは、前記読み出しビット線と前記固定電位線との間の導通状態を制御する機能を有し、
前記第3のトランジスタは、前記第1の電圧値および前記第2の電圧値を読み出す期間以外の期間で導通状態とする期間を有することを特徴とする半導体装置。 - 請求項1または2において、
前記第1のトランジスタは、チャネル形成領域に酸化物半導体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のいずれか一項において、
前記メモリセルは、さらに第4のトランジスタを有し、
前記第4のトランジスタは、前記第1のデータおよび前記補正用データを読み出す第1の期間において、オン状態とすることを特徴とする半導体装置。 - 請求項4において、
前記データ書き込み回路は、前記第1の期間において、前記メモリセルに前記補正用データを書き込む機能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5のいずれか一項において、
前記データ読み出し回路は、容量素子と、電位制御回路と、アナログデジタル変換回路と、を有し、
前記容量素子の一方の電極は、前記メモリセルに電気的に接続され、
前記容量素子の他方の電極は、前記電位制御回路および前記アナログデジタル変換回路に電気的に接続され、
前記電位制御回路は、
前記第1のデータに対応する第1の電圧値を読み出す期間において前記容量素子の他方の電極の電位を固定電位とする機能と、
前記補正用データに対応する第2の電圧値を読み出す期間において前記容量素子の他方の電極の電位を電気的に浮遊状態とする機能と、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6のいずれか一に記載の前記半導体装置と、
前記半導体装置に電気的に接続されたリードと、
を有することを特徴とする電子部品。 - 請求項7に記載の前記電子部品と、
前記電子部品が設けられたプリント基板と、
前記プリント基板が格納された筐体と、
を有することを特徴とする電子機器。
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JP6538426B2 (ja) * | 2014-05-30 | 2019-07-03 | 株式会社半導体エネルギー研究所 | 半導体装置及び電子機器 |
JP6552336B2 (ja) | 2014-08-29 | 2019-07-31 | 株式会社半導体エネルギー研究所 | 半導体装置 |
JP2016066392A (ja) * | 2014-09-24 | 2016-04-28 | マイクロン テクノロジー, インク. | 半導体装置とデータ読み出し方法 |
JP6563313B2 (ja) * | 2014-11-21 | 2019-08-21 | 株式会社半導体エネルギー研究所 | 半導体装置、及び電子機器 |
JP6667267B2 (ja) | 2014-12-08 | 2020-03-18 | 株式会社半導体エネルギー研究所 | 半導体装置 |
US9583177B2 (en) | 2014-12-10 | 2017-02-28 | Semiconductor Energy Laboratory Co., Ltd. | Memory device and semiconductor device including memory device |
JP6689062B2 (ja) | 2014-12-10 | 2020-04-28 | 株式会社半導体エネルギー研究所 | 半導体装置 |
JP6833315B2 (ja) | 2014-12-10 | 2021-02-24 | 株式会社半導体エネルギー研究所 | 半導体装置、及び電子機器 |
WO2016092416A1 (en) * | 2014-12-11 | 2016-06-16 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device, memory device, and electronic device |
US9489988B2 (en) | 2015-02-20 | 2016-11-08 | Semiconductor Energy Laboratory Co., Ltd. | Memory device |
US9773787B2 (en) | 2015-11-03 | 2017-09-26 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device, memory device, electronic device, or method for driving the semiconductor device |
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2017
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- 2017-11-02 WO PCT/IB2017/056802 patent/WO2018087630A1/en active Application Filing
- 2017-11-06 US US15/804,295 patent/US10163519B2/en active Active
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US20180130539A1 (en) | 2018-05-10 |
US10163519B2 (en) | 2018-12-25 |
JP2018206461A (ja) | 2018-12-27 |
WO2018087630A1 (en) | 2018-05-17 |
TWI756289B (zh) | 2022-03-01 |
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