CN102456746B - 非挥发性半导体存储单元、器件及制备方法 - Google Patents
非挥发性半导体存储单元、器件及制备方法 Download PDFInfo
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- CN102456746B CN102456746B CN201010527589.2A CN201010527589A CN102456746B CN 102456746 B CN102456746 B CN 102456746B CN 201010527589 A CN201010527589 A CN 201010527589A CN 102456746 B CN102456746 B CN 102456746B
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- tunnelling
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- 239000004065 semiconductor Substances 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 238000003860 storage Methods 0.000 claims abstract description 52
- 238000007667 floating Methods 0.000 claims abstract description 44
- 230000015654 memory Effects 0.000 claims abstract description 43
- 239000000758 substrate Substances 0.000 claims abstract description 15
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims abstract description 8
- 229920005591 polysilicon Polymers 0.000 claims abstract description 7
- 239000010410 layer Substances 0.000 claims description 64
- 239000000463 material Substances 0.000 claims description 53
- 230000004888 barrier function Effects 0.000 claims description 32
- 229910052751 metal Inorganic materials 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 26
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 24
- 239000007769 metal material Substances 0.000 claims description 16
- 230000005641 tunneling Effects 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 14
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 claims description 12
- 229910052782 aluminium Inorganic materials 0.000 claims description 11
- 229910021332 silicide Inorganic materials 0.000 claims description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- 238000000231 atomic layer deposition Methods 0.000 claims description 8
- 150000004767 nitrides Chemical class 0.000 claims description 8
- 238000009792 diffusion process Methods 0.000 claims description 7
- 238000009825 accumulation Methods 0.000 claims description 6
- 229910019001 CoSi Inorganic materials 0.000 claims description 5
- 229910005883 NiSi Inorganic materials 0.000 claims description 5
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 5
- 238000005530 etching Methods 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 229910052721 tungsten Inorganic materials 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims description 2
- 239000004411 aluminium Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 238000005229 chemical vapour deposition Methods 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- MZLGASXMSKOWSE-UHFFFAOYSA-N tantalum nitride Chemical compound [Ta]#N MZLGASXMSKOWSE-UHFFFAOYSA-N 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- MAKDTFFYCIMFQP-UHFFFAOYSA-N titanium tungsten Chemical compound [Ti].[W] MAKDTFFYCIMFQP-UHFFFAOYSA-N 0.000 claims description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 2
- -1 tungsten nitride Chemical class 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 abstract description 10
- 239000010409 thin film Substances 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 230000006870 function Effects 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 2
- 238000004377 microelectronic Methods 0.000 description 2
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005566 electron beam evaporation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 238000004549 pulsed laser deposition Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- Non-Volatile Memory (AREA)
Abstract
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CN201010527589.2A CN102456746B (zh) | 2010-10-27 | 2010-10-27 | 非挥发性半导体存储单元、器件及制备方法 |
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CN201010527589.2A CN102456746B (zh) | 2010-10-27 | 2010-10-27 | 非挥发性半导体存储单元、器件及制备方法 |
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CN102456746A CN102456746A (zh) | 2012-05-16 |
CN102456746B true CN102456746B (zh) | 2014-03-12 |
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CN201010527589.2A Expired - Fee Related CN102456746B (zh) | 2010-10-27 | 2010-10-27 | 非挥发性半导体存储单元、器件及制备方法 |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017078918A1 (en) * | 2015-11-03 | 2017-05-11 | Silicon Storage Technology, Inc. | Integration of metal floating gate in non-volatile memory |
CN109727992B (zh) * | 2018-12-27 | 2020-12-08 | 中国科学院微电子研究所 | 电荷俘获型存储器和其制作方法 |
CN111490046B (zh) * | 2020-04-27 | 2022-06-21 | 复旦大学 | 一种高擦写速度半浮栅存储器及其制备方法 |
CN111477626B (zh) * | 2020-04-27 | 2022-06-21 | 复旦大学 | 一种半浮栅存储器及其制备方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101226965A (zh) * | 2006-12-21 | 2008-07-23 | 三星电子株式会社 | 非易失性存储器件及其制造方法 |
CN101276842A (zh) * | 2007-03-26 | 2008-10-01 | 三星电子株式会社 | 半导体存储器件、其制造方法以及采用该半导体存储器件的装置 |
CN101383379A (zh) * | 2007-09-05 | 2009-03-11 | 中国科学院微电子研究所 | 多介质复合隧穿层的纳米晶浮栅存储器及其制作方法 |
CN101399289A (zh) * | 2007-09-26 | 2009-04-01 | 中国科学院微电子研究所 | 双层隧穿介质结构的纳米晶浮栅非易失存储器及制作方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6660588B1 (en) * | 2002-09-16 | 2003-12-09 | Advanced Micro Devices, Inc. | High density floating gate flash memory and fabrication processes therefor |
US7138680B2 (en) * | 2004-09-14 | 2006-11-21 | Infineon Technologies Ag | Memory device with floating gate stack |
JP2007294911A (ja) * | 2006-03-31 | 2007-11-08 | Semiconductor Energy Lab Co Ltd | 不揮発性半導体記憶装置 |
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2010
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101226965A (zh) * | 2006-12-21 | 2008-07-23 | 三星电子株式会社 | 非易失性存储器件及其制造方法 |
CN101276842A (zh) * | 2007-03-26 | 2008-10-01 | 三星电子株式会社 | 半导体存储器件、其制造方法以及采用该半导体存储器件的装置 |
CN101383379A (zh) * | 2007-09-05 | 2009-03-11 | 中国科学院微电子研究所 | 多介质复合隧穿层的纳米晶浮栅存储器及其制作方法 |
CN101399289A (zh) * | 2007-09-26 | 2009-04-01 | 中国科学院微电子研究所 | 双层隧穿介质结构的纳米晶浮栅非易失存储器及制作方法 |
Non-Patent Citations (1)
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JP特开2007-294911A 2007.11.08 |
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