JP2023133142A - メモリ構造及びその形成方法 - Google Patents
メモリ構造及びその形成方法 Download PDFInfo
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- JP2023133142A JP2023133142A JP2023015278A JP2023015278A JP2023133142A JP 2023133142 A JP2023133142 A JP 2023133142A JP 2023015278 A JP2023015278 A JP 2023015278A JP 2023015278 A JP2023015278 A JP 2023015278A JP 2023133142 A JP2023133142 A JP 2023133142A
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- 238000000034 method Methods 0.000 title claims description 148
- 230000015654 memory Effects 0.000 title claims description 55
- 125000006850 spacer group Chemical group 0.000 claims abstract description 30
- 229910044991 metal oxide Inorganic materials 0.000 claims abstract description 15
- 150000004706 metal oxides Chemical class 0.000 claims abstract description 15
- 230000008569 process Effects 0.000 claims description 70
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 49
- 239000012212 insulator Substances 0.000 claims description 42
- 238000000151 deposition Methods 0.000 claims description 38
- 238000005224 laser annealing Methods 0.000 claims description 38
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Substances [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 29
- 230000005855 radiation Effects 0.000 claims description 26
- 239000000203 mixture Substances 0.000 claims description 25
- -1 argon ion Chemical class 0.000 claims description 24
- 239000011787 zinc oxide Substances 0.000 claims description 24
- 229910052786 argon Inorganic materials 0.000 claims description 19
- 238000002425 crystallisation Methods 0.000 claims description 14
- 230000008025 crystallization Effects 0.000 claims description 14
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 claims description 11
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims description 10
- UIZLQMLDSWKZGC-UHFFFAOYSA-N cadmium helium Chemical compound [He].[Cd] UIZLQMLDSWKZGC-UHFFFAOYSA-N 0.000 claims description 10
- CPBQJMYROZQQJC-UHFFFAOYSA-N helium neon Chemical compound [He].[Ne] CPBQJMYROZQQJC-UHFFFAOYSA-N 0.000 claims description 10
- 229910052743 krypton Inorganic materials 0.000 claims description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 9
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 claims description 9
- 239000004020 conductor Substances 0.000 claims description 9
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 9
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 claims description 9
- JAONJTDQXUSBGG-UHFFFAOYSA-N dialuminum;dizinc;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Zn+2].[Zn+2] JAONJTDQXUSBGG-UHFFFAOYSA-N 0.000 claims description 8
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 claims description 7
- 229910052733 gallium Inorganic materials 0.000 claims description 7
- SKRWFPLZQAAQSU-UHFFFAOYSA-N stibanylidynetin;hydrate Chemical compound O.[Sn].[Sb] SKRWFPLZQAAQSU-UHFFFAOYSA-N 0.000 claims description 7
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 7
- 229910001887 tin oxide Inorganic materials 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 claims description 5
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 5
- 238000000059 patterning Methods 0.000 claims description 5
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 4
- 239000005751 Copper oxide Substances 0.000 claims description 4
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- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 claims description 4
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- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 4
- 229910001936 tantalum oxide Inorganic materials 0.000 claims description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 4
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- 230000035515 penetration Effects 0.000 claims 2
- 239000010410 layer Substances 0.000 description 544
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- 239000010949 copper Substances 0.000 description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 12
- 229910052581 Si3N4 Inorganic materials 0.000 description 12
- 239000002019 doping agent Substances 0.000 description 12
- 229920002120 photoresistant polymer Polymers 0.000 description 12
- 230000005621 ferroelectricity Effects 0.000 description 11
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 11
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- 238000004519 manufacturing process Methods 0.000 description 10
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- 238000002955 isolation Methods 0.000 description 9
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- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 8
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 8
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- 238000000231 atomic layer deposition Methods 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
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- 229910052731 fluorine Inorganic materials 0.000 description 8
- 239000011737 fluorine Substances 0.000 description 8
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 8
- 229910052735 hafnium Inorganic materials 0.000 description 8
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 8
- 229910000449 hafnium oxide Inorganic materials 0.000 description 8
- WIHZLLGSGQNAGK-UHFFFAOYSA-N hafnium(4+);oxygen(2-) Chemical compound [O-2].[O-2].[Hf+4] WIHZLLGSGQNAGK-UHFFFAOYSA-N 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
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- 238000005240 physical vapour deposition Methods 0.000 description 8
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- 239000010936 titanium Substances 0.000 description 8
- 230000005669 field effect Effects 0.000 description 7
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 7
- 229910052721 tungsten Inorganic materials 0.000 description 7
- 239000010937 tungsten Substances 0.000 description 7
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 230000005641 tunneling Effects 0.000 description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 5
- 238000001312 dry etching Methods 0.000 description 5
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- 239000011733 molybdenum Substances 0.000 description 5
- 239000012071 phase Substances 0.000 description 5
- 239000005368 silicate glass Substances 0.000 description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 4
- 229910052454 barium strontium titanate Inorganic materials 0.000 description 4
- 229910052796 boron Inorganic materials 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 229910017052 cobalt Inorganic materials 0.000 description 4
- 239000010941 cobalt Substances 0.000 description 4
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 4
- 230000009977 dual effect Effects 0.000 description 4
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
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- 239000005360 phosphosilicate glass Substances 0.000 description 4
- 238000001020 plasma etching Methods 0.000 description 4
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- 239000000126 substance Substances 0.000 description 4
- 229910052715 tantalum Inorganic materials 0.000 description 4
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 4
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 description 4
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- 206010073306 Exposure to radiation Diseases 0.000 description 3
- 229910002601 GaN Inorganic materials 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
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- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 3
- VNSWULZVUKFJHK-UHFFFAOYSA-N [Sr].[Bi] Chemical compound [Sr].[Bi] VNSWULZVUKFJHK-UHFFFAOYSA-N 0.000 description 3
- RVSGESPTHDDNTH-UHFFFAOYSA-N alumane;tantalum Chemical compound [AlH3].[Ta] RVSGESPTHDDNTH-UHFFFAOYSA-N 0.000 description 3
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- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 description 3
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- 239000002073 nanorod Substances 0.000 description 1
- 239000002135 nanosheet Substances 0.000 description 1
- 239000002070 nanowire Substances 0.000 description 1
- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- HWEYZGSCHQNNEH-UHFFFAOYSA-N silicon tantalum Chemical compound [Si].[Ta] HWEYZGSCHQNNEH-UHFFFAOYSA-N 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000003980 solgel method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 229910019655 synthetic inorganic crystalline material Inorganic materials 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
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- H10B51/30—Ferroelectric RAM [FeRAM] devices comprising ferroelectric memory transistors characterised by the memory core region
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L28/00—Passive two-terminal components without a potential-jump or surface barrier for integrated circuits; Details thereof; Multistep manufacturing processes therefor
- H01L28/40—Capacitors
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- H10B—ELECTRONIC MEMORY DEVICES
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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
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- H01L29/49—Metal-insulator-semiconductor electrodes, e.g. gates of MOSFET
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Abstract
Description
100、400 方法
102、104、106、108、110、112、114、116、118、120、402、404、406、408、410、412、414、416、418 ステップ
200 ワーク/装置構造
201 相互接続構造
202 基板
204 能動領域
206 ゲート構造
208 ソース/ドレイン領域
212 第1の層間誘電体層
214 第1の貫通穴
216 第1の金属線
222 層間誘電体層
224 上部貫通穴
226 上部金属線
230 第1のエッチングストップ層
232 開口
234 コンタクトホール
236、266 下部電極層
238、268、2380、2680 強誘電体層
240 上部電極層
242 ハードマスク層
244 スペーサ
250 第1のメモリスタック
252 第2のエッチングストップ層
254 層間誘電体層
256 貫通穴
258 金属線
260、2600 インシュレータ層
270 上部電極層
272 ハードマスク層
280 第2のメモリスタック
300 レーザアニーリング
M1 第1の金属層
Mn 第nの金属層
Mn+1 第(n+1)の金属層
X、Y、Z 方向
Claims (10)
- 第1の誘電体層内に配置される導電特徴と、
前記導電特徴に電気的に結合する下部電極層と、前記下部電極層の上方に位置する強誘電体層と、前記強誘電体層に位置する上部電極層と、を含み、前記導電特徴の上方に配置される強誘電体トンネル接合スタックと、
前記強誘電体トンネル接合スタックの複数の側壁に沿って配置されるスペーサと、
前記スペーサ及び前記強誘電体トンネル接合スタックの上方に配置される第2の誘電体層と、
延伸して前記第2の誘電体層を通過し、且つ前記上部電極層の上面に接触するコンタクトホールと、
を備え、
前記上部電極層は、導電性金属酸化物で形成される装置構造。 - 前記上部電極層は、ヘリウムネオンレーザ源、ネオジムドープイットリウムアルミニウムガーネットレーザ源、アルゴンイオンレーザ源、連続波アルゴンレーザ源、クリプトンイオンレーザ源、ヒ化ガリウムダイオードレーザ源又はヘリウムカドミウムレーザ源からの放射線が前記上部電極層全体の深さにわたって透過することを可能にする請求項1に記載の装置構造。
- 前記上部電極層は、酸化インジウムスズ、酸化亜鉛、フッ素ドープ酸化スズ、酸化ガリウム亜鉛、酸化アルミニウム亜鉛又は酸化アンチモンスズを含む請求項1又は2に記載の装置構造。
- 前記上部電極層の組成は、前記下部電極層の組成とは異なる請求項1又は2に記載の装置構造。
- 前記導電特徴及び前記第1の誘電体層の上方に位置するエッチングストップ層を更に備え、
前記下部電極層の一部は、完全に延伸して前記エッチングストップ層を通過する請求項1又は2に記載の装置構造。 - 前記エッチングストップ層の組成は、前記スペーサの組成とは異なる請求項5に記載の装置構造。
- 第1の誘電体層内に配置される導電特徴と、
前記導電特徴及び前記第1の誘電体層の上方に位置するエッチングストップ層と、
前記導電特徴に接触するように延伸して前記エッチングストップ層を通過する底部コンタクトホールと、
前記底部コンタクトホールに接触する下部電極層と、前記下部電極層の上方に位置する強誘電体層と、前記強誘電体層に位置する上部電極層と、を含み、前記エッチングストップ層及び前記底部コンタクトホールに配置されるメモリスタックと、
を備え、
前記上部電極層は、ヘリウムネオンレーザ源、ネオジムドープイットリウムアルミニウムガーネットレーザ源、アルゴンイオンレーザ源、連続波アルゴンレーザ源、クリプトンイオンレーザ源、ヒ化ガリウムダイオードレーザ源又はヘリウムカドミウムレーザ源からの放射線が前記上部電極層全体の深さにわたって透過することを可能にする導電性材料で形成される構造。 - 前記下部電極層と前記強誘電体層の間に挟まれるインシュレータ層を更に備え、
前記インシュレータ層は、酸化ニッケル、酸化チタン、酸化シリコン、酸化ジルコニウム、酸化タングステン、酸化アルミニウム、酸化タンタル、酸化モリブデン又は酸化銅を含む請求項7に記載の構造。 - 前記上部電極層は、第1の厚さを含み、
前記強誘電体層は、第2の厚さを含み、
前記第2の厚さは、前記第1の厚さよりも小さい請求項7又は8に記載の構造。 - 第1の誘電体層内に配置される導電特徴を含むワークを提供するステップと、
前記ワークの上方にエッチングストップ層を堆積するステップと、
前記導電特徴に接触するように前記エッチングストップ層を通過してコンタクトホールを形成するステップと、
前記エッチングストップ層及び前記コンタクトホールの上方に下部電極層を堆積するステップと、
前記下部電極層の上方に強誘電体層を堆積するステップと、
前記強誘電体層の上方に上部電極層を堆積するステップと、
前記上部電極層を堆積した後、前記強誘電体層の結晶化を促進するように、レーザ源によりレーザアニーリングプロセスを実行するステップと、
前記レーザアニーリングプロセスの後、前記下部電極層、前記強誘電体層及び前記上部電極層をパターニングしてメモリスタックを形成するステップと、
を含み、
前記上部電極層は、前記レーザ源からの放射線の透過を可能にする導電性材料で形成される方法。
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US202263319085P | 2022-03-11 | 2022-03-11 | |
US63/319,085 | 2022-03-11 | ||
US17/751,363 US20230292525A1 (en) | 2022-03-11 | 2022-05-23 | Memory structure and method of forming the same |
US17/751,363 | 2022-05-23 |
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JP (1) | JP2023133142A (ja) |
KR (1) | KR20230133744A (ja) |
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JP2003298021A (ja) * | 2002-03-29 | 2003-10-17 | Seiko Epson Corp | 強誘電体薄膜の形成方法、強誘電体メモリならびに強誘電体メモリの製造方法、および半導体装置ならびに半導体装置の製造方法 |
US11283005B2 (en) * | 2019-09-30 | 2022-03-22 | Taiwan Semiconductor Manufacturing Company, Ltd. | Spacer scheme and method for MRAM |
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