JP2009117461A - アンチヒューズ素子、およびアンチヒューズ素子の設定方法 - Google Patents
アンチヒューズ素子、およびアンチヒューズ素子の設定方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims description 34
- 230000015556 catabolic process Effects 0.000 claims description 12
- 238000009413 insulation Methods 0.000 abstract 2
- 238000009792 diffusion process Methods 0.000 description 27
- 239000010410 layer Substances 0.000 description 27
- 239000004065 semiconductor Substances 0.000 description 22
- 239000012535 impurity Substances 0.000 description 16
- 239000000758 substrate Substances 0.000 description 13
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 11
- 230000006378 damage Effects 0.000 description 10
- 230000002950 deficient Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000002955 isolation Methods 0.000 description 3
- 230000005283 ground state Effects 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 239000003870 refractory metal Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- -1 boron (boron) ions Chemical class 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920002120 photoresistant polymer Polymers 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
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- H01L21/823462—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type with a particular manufacturing method of the gate insulating layers, e.g. different gate insulating layer thicknesses, particular gate insulator materials or particular gate insulator implants
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Abstract
【解決手段】複数のMOSトランジスタと、複数のMOSトランジスタのソース電極が共通に接続された第1の電極と、複数のMOSトランジスタのゲート電極が共通に接続された第2の電極と、複数のMOSトランジスタのドレイン電極の少なくとも1つと接続される第3の電極と、ドレイン電極および第3の電極の間に設けられた絶縁膜と、を有する。そして、上記絶縁膜においてドレイン電極に対応して少なくとも1箇所が絶縁破壊されることで、絶縁破壊された部位に対応するドレイン電極と第3の電極とが導通する構成である。
【選択図】図1
Description
複数のMOSトランジスタと、
前記複数のMOSトランジスタのソース電極が共通に接続された第1の電極と、
前記複数のMOSトランジスタのゲート電極が共通に接続された第2の電極と、
前記複数のMOSトランジスタのドレイン電極の少なくとも1つと接続される第3の電極と、
前記ドレイン電極および前記第3の電極の間に設けられた絶縁膜と、を有し、
前記絶縁膜において前記ドレイン電極に対応して少なくとも1箇所が絶縁破壊されることで、絶縁破壊された部位に対応する前記ドレイン電極と前記第3の電極とが導通する構成である。
前記絶縁膜において前記ドレイン電極に対応して少なくとも1箇所を絶縁破壊することで、絶縁破壊された部位に対応する前記ドレイン電極と前記第3の電極とを導通させるものである。
本実施形態のアンチヒューズの構成を説明する。本実施形態では、最大5値の情報を記録可能なヒューズの場合で説明する。
(第2の実施形態)
第1の実施形態では破壊選択配線から1本の配線を選択するものであったが、本実施形態は、破壊選択配線として複数の配線を選択するものである。
2 ドレイン電極
3 ソース電極
6a、6b ゲート絶縁膜
Claims (8)
- 複数のMOSトランジスタと、
前記複数のMOSトランジスタのソース電極が共通に接続された第1の電極と、
前記複数のMOSトランジスタのゲート電極が共通に接続された第2の電極と、
前記複数のMOSトランジスタのドレイン電極の少なくとも1つと接続される第3の電極と、
前記ドレイン電極および前記第3の電極の間に設けられた絶縁膜と、を有し、
前記絶縁膜において前記ドレイン電極に対応して少なくとも1箇所が絶縁破壊されることで、絶縁破壊された部位に対応する前記ドレイン電極と前記第3の電極とが導通する、アンチヒューズ素子。 - いずれか1つの前記ドレイン電極と前記第3の電極とが導通することで、前記第3の電極の抵抗値に対応して前記MOSトランジスタの閾値電圧が設定される請求項1記載のアンチヒューズ素子。
- 前記MOSトランジスタをオンさせる際に前記第3の電極に電圧が印加される部位から前記絶縁膜までの前記第3の電極の長さが前記MOSトランジスタ毎に異なっている請求項2記載のアンチヒューズ素子。
- 前記第3の電極の電気抵抗率が前記第1および第2の電極よりも大きい請求項2記載のアンチヒューズ素子。
- 1つ以上の前記ドレイン電極と前記第3の電極とが導通することで、前記第3の電極と接続される前記ドレイン電極のMOSトランジスタのゲート幅の合計により全体のゲート幅が設定される請求項1記載のアンチヒューズ素子。
- 複数のMOSトランジスタと、該複数のMOSトランジスタのソース電極が共通に接続された第1の電極と、前記複数のMOSトランジスタのゲート電極が共通に接続された第2の電極と、前記複数のMOSトランジスタのドレイン電極の少なくとも1つと接続される第3の電極と、前記ドレイン電極および前記第3の電極の間に設けられた絶縁膜と、を有するアンチヒューズ素子の設定方法であって、
前記絶縁膜において前記ドレイン電極に対応して少なくとも1箇所を絶縁破壊することで、絶縁破壊された部位に対応する前記ドレイン電極と前記第3の電極とを導通させる、アンチヒューズ素子の設定方法。 - いずれか1つの前記ドレイン電極と前記第3の電極とを導通させることで、前記第3の電極の抵抗値に対応して前記MOSトランジスタの閾値電圧を設定する、請求項6記載のアンチヒューズ素子の設定方法。
- 1つ以上の前記ドレイン電極と前記第3の電極とを導通させることで、前記第3の電極と接続される前記ドレイン電極のMOSトランジスタのゲート幅の合計により全体のゲート幅を設定する、請求項6記載のアンチヒューズ素子の設定方法。
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JP2007286131A JP2009117461A (ja) | 2007-11-02 | 2007-11-02 | アンチヒューズ素子、およびアンチヒューズ素子の設定方法 |
US12/262,768 US20090115021A1 (en) | 2007-11-02 | 2008-10-31 | Antifuse element in which more than two values of information can be written |
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JP2007286131A JP2009117461A (ja) | 2007-11-02 | 2007-11-02 | アンチヒューズ素子、およびアンチヒューズ素子の設定方法 |
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Cited By (2)
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KR20160121245A (ko) * | 2015-04-10 | 2016-10-19 | 에스케이하이닉스 주식회사 | 안티 퓨즈 소자, 안티 퓨즈 어레이 및 그 동작 방법 |
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JPWO2010100995A1 (ja) * | 2009-03-02 | 2012-09-06 | 株式会社村田製作所 | アンチヒューズ素子 |
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US10192615B2 (en) | 2011-02-14 | 2019-01-29 | Attopsemi Technology Co., Ltd | One-time programmable devices having a semiconductor fin structure with a divided active region |
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Cited By (4)
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JP2012043970A (ja) * | 2010-08-19 | 2012-03-01 | Renesas Electronics Corp | 半導体装置、メモリ装置への書込方法、メモリ装置からの読出方法、及び半導体装置の製造方法 |
US8675385B2 (en) | 2010-08-19 | 2014-03-18 | Renesas Electronics Corporation | Semiconductor device having memory unit, method of writing to or reading from memory unit, and semiconductor device manufacturing method |
KR20160121245A (ko) * | 2015-04-10 | 2016-10-19 | 에스케이하이닉스 주식회사 | 안티 퓨즈 소자, 안티 퓨즈 어레이 및 그 동작 방법 |
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