JP5606479B2 - 半導体記憶装置 - Google Patents
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- H10B63/22—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices comprising selection components having two electrodes, e.g. diodes of the metal-insulator-metal type
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- H10B63/84—Arrangements comprising multiple bistable or multi-stable switching components of the same type on a plane parallel to the substrate, e.g. cross-point arrays arranged in a direction perpendicular to the substrate, e.g. 3D cell arrays
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Description
前記メモリセルアレイの周囲の周辺領域には複数の第1ダミー配線領域が形成される。第1ダミー配線領域は、第1配線及び第2配線と同一の層に形成される第1ダミー配線及び第2ダミー配線により構成される。
ビット線BLは、同一方向(カラム方向)に延びるように形成されている。ワード線WLは、ビット線BLに直交(交差)する方向(ロウ方向)に延びるように形成されている。
周辺領域PAの半導体基板の表面には、前述の周辺回路(カラム制御回路2、ロウ制御回路3など)を構成するトランジスタが形成される。そして、この周辺領域PAの半導体基板の上方には、第1ダミー配線領域DR1、第2ダミー配線領域DR2、及びコンタクトCL2が形成される。コンタクトCL2は、半導体基板に垂直な方向、すなわち前述のロウ方向及びカラム方向に垂直な方向に延びるように形成される。なお、第1ダミー配線領域DR1、第2ダミー配線領域DR2、及びコンタクトCL2の間の空隙には、シリコン酸化膜等を材料として層間絶縁膜ILが埋め込まれる。
Claims (6)
- 第1方向に沿って伸びる複数の第1配線と、
前記第1方向と交差する第2方向に沿って伸びる複数の第2配線と、
前記第1配線及び前記第2配線の交差部で両配線間に接続されたメモリセルを配列してなるメモリセルアレイと、
前記メモリセルアレイの周囲の周辺領域において前記第1配線及び前記第2配線と同一の層に形成される第1ダミー配線及び第2ダミー配線により構成される複数の第1ダミー配線領域と、
前記周辺領域において前記第1方向及び前記第2方向に対し垂直な第3方向に延びるように形成されるコンタクトと、
前記コンタクトの周囲に形成され前記第1配線及び前記第2配線と同一の層に形成される第3ダミー配線及び第4ダミー配線により構成される複数の第2ダミー配線領域と
を備え、
複数の前記第2ダミー配線領域の面積の平均値は、複数の前記第1ダミー配線領域の面積の平均値よりも小さく、
複数の前記第2ダミー配線領域が、前記コンタクトの周囲を取り囲むように形成され、
1つの前記コンタクトから複数の前記ダミー配線領域までの距離は互いに略等しくされていることを特徴とする半導体記憶装置。 - 第1方向に沿って伸びる複数の第1配線と、
前記第1方向と交差する第2方向に沿って伸びる複数の第2配線と、
前記第1配線及び前記第2配線の交差部で両配線間に接続されたメモリセルを配列してなるメモリセルアレイと、
前記メモリセルアレイの周囲の周辺領域において前記第1配線及び前記第2配線と同一の層に形成される第1ダミー配線及び第2ダミー配線により構成される複数の第1ダミー配線領域と、
前記周辺領域において前記第1方向及び前記第2方向に対し垂直な第3方向に延びるように形成されるコンタクトと、
前記コンタクトの周囲に形成され前記第1配線及び前記第2配線と同一の層に形成される第3ダミー配線及び第4ダミー配線により構成される複数の第2ダミー配線領域と
を備え、
複数の前記第2ダミー配線領域の面積の平均値は、複数の前記第1ダミー配線領域の面積の平均値よりも小さい
ことを特徴とする半導体記憶装置。 - 第1方向に沿って伸びる複数の第1配線と、
前記第1方向と交差する第2方向に沿って伸びる複数の第2配線と、
前記第1配線及び前記第2配線の交差部で両配線間に接続されたメモリセルを配列してなるメモリセルアレイと、
前記メモリセルアレイの周囲の周辺領域において前記第1配線及び前記第2配線と同一の層に形成される第1ダミー配線及び第2ダミー配線により構成される複数の第1ダミー配線領域と、
前記周辺領域において前記第1方向及び前記第2方向に対し垂直な第3方向に延びるように形成されるコンタクトと、
前記コンタクトの周囲に形成され、前記コンタクトの周囲を閉ループ状に取り囲む形状を有し、前記第1配線及び前記第2配線と同一の層に形成される第3ダミー配線及び第4ダミー配線により構成される第2ダミー配線領域と
を備え、
前記第2ダミー配線領域の面積は、前記第1ダミー配線領域の面積よりも小さい
ことを特徴とする半導体記憶装置。 - 閉ループ状の前記第2ダミー配線領域が、1つの前記コンタクトを囲うように形成された請求項3記載の半導体記憶装置。
- 閉ループ状の前記第2ダミー配線領域が、複数の前記コンタクトを囲うように形成された請求項3記載の半導体記憶装置。
- 複数の前記第2ダミー配線領域が、前記コンタクトの周囲を取り囲むように形成される請求項2記載の半導体記憶装置。
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JP2012065789A JP5606479B2 (ja) | 2012-03-22 | 2012-03-22 | 半導体記憶装置 |
US13/599,153 US9252097B2 (en) | 2012-03-22 | 2012-08-30 | Semiconductor memory device |
TW102106468A TWI545729B (zh) | 2012-03-22 | 2013-02-23 | Semiconductor memory device |
CN201310074724.6A CN103325807B (zh) | 2012-03-22 | 2013-03-08 | 半导体存储装置 |
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JP5595977B2 (ja) * | 2011-05-27 | 2014-09-24 | 株式会社東芝 | 半導体記憶装置、その製造方法及びコンタクト構造の形成方法 |
CN103855300B (zh) * | 2012-12-04 | 2017-03-29 | 中芯国际集成电路制造(上海)有限公司 | 相变存储器及其形成方法 |
US9246100B2 (en) | 2013-07-24 | 2016-01-26 | Micron Technology, Inc. | Memory cell array structures and methods of forming the same |
KR102307060B1 (ko) | 2014-12-03 | 2021-10-01 | 삼성전자주식회사 | 반도체 소자 |
KR102275540B1 (ko) | 2014-12-18 | 2021-07-13 | 삼성전자주식회사 | 가변 저항 메모리 소자 |
JP2016192443A (ja) | 2015-03-30 | 2016-11-10 | 株式会社東芝 | 記憶装置 |
KR102695463B1 (ko) | 2016-07-11 | 2024-08-14 | 삼성전자주식회사 | 수직형 메모리 장치 |
KR20180120019A (ko) * | 2017-04-26 | 2018-11-05 | 에스케이하이닉스 주식회사 | 반도체 소자 및 이의 제조 방법 |
JP2020047644A (ja) | 2018-09-14 | 2020-03-26 | キオクシア株式会社 | 半導体装置 |
KR102565822B1 (ko) * | 2018-12-04 | 2023-08-11 | 에스케이하이닉스 주식회사 | 반도체 장치 |
US20200227414A1 (en) * | 2019-01-16 | 2020-07-16 | Macronix International Co., Ltd. | Semiconductor structure and method for forming the same |
US10811058B2 (en) * | 2019-02-06 | 2020-10-20 | Sandisk Technologies Llc | Bonded assembly containing memory die bonded to integrated peripheral and system die and methods for making the same |
KR20210048637A (ko) * | 2019-10-23 | 2021-05-04 | 삼성전자주식회사 | 가변 저항 메모리 장치 |
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US12016186B2 (en) | 2020-06-15 | 2024-06-18 | Samsung Electronics Co., Ltd. | Semiconductor memory device |
JP2022050253A (ja) * | 2020-09-17 | 2022-03-30 | キオクシア株式会社 | 半導体記憶装置 |
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US9252097B2 (en) | 2016-02-02 |
TWI545729B (zh) | 2016-08-11 |
JP2013197500A (ja) | 2013-09-30 |
CN103325807B (zh) | 2016-09-07 |
TW201347146A (zh) | 2013-11-16 |
CN103325807A (zh) | 2013-09-25 |
US20130249113A1 (en) | 2013-09-26 |
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