JP5099691B2 - 半導体装置 - Google Patents
半導体装置 Download PDFInfo
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- JP5099691B2 JP5099691B2 JP2007512374A JP2007512374A JP5099691B2 JP 5099691 B2 JP5099691 B2 JP 5099691B2 JP 2007512374 A JP2007512374 A JP 2007512374A JP 2007512374 A JP2007512374 A JP 2007512374A JP 5099691 B2 JP5099691 B2 JP 5099691B2
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- 239000004065 semiconductor Substances 0.000 title claims description 43
- 238000003860 storage Methods 0.000 claims description 28
- 239000000758 substrate Substances 0.000 claims description 24
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 17
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 17
- 238000005452 bending Methods 0.000 claims description 2
- 230000015654 memory Effects 0.000 description 71
- 239000010410 layer Substances 0.000 description 19
- 238000000034 method Methods 0.000 description 16
- 239000011229 interlayer Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 229910052581 Si3N4 Inorganic materials 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000002955 isolation Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 5
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 238000005468 ion implantation Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 229910052785 arsenic Inorganic materials 0.000 description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 3
- 238000005530 etching Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 150000004767 nitrides Chemical class 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 2
- -1 Metal Oxide Nitride Chemical class 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/792—Field effect transistors with field effect produced by an insulated gate with charge trapping gate insulator, e.g. MNOS-memory transistors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B43/00—EEPROM devices comprising charge-trapping gate insulators
- H10B43/30—EEPROM devices comprising charge-trapping gate insulators characterised by the memory core region
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B69/00—Erasable-and-programmable ROM [EPROM] devices not provided for in groups H10B41/00 - H10B63/00, e.g. ultraviolet erasable-and-programmable ROM [UVEPROM] devices
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Semiconductor Memories (AREA)
- Non-Volatile Memory (AREA)
Description
Oxide Nitride Oxide Silicon)型やSONOS(Silicon
Oxide Nitride Oxide Silicon)型といったONO(Oxide/Nitride/Oxide)膜を有するフラッシュメモリがある。これは、酸化シリコン膜層に挟まれたトラップ層と呼ばれる窒化シリコン膜層に電荷を蓄積するフラッシュメモリである。このフラッシュメモリは絶縁膜である窒化シリコン膜層に電荷を蓄積するため、トンネル酸化膜に欠陥があっても、フローティングゲート型のように電荷の損失が発生し難い。
Claims (4)
- 半導体基板上に形成されたゲート電極と、該ゲート電極の両側の前記半導体基板内に形成された2つのソース・ドレイン領域と、複数の電荷蓄積領域とを具備するトランジスタと、
前記ソース・ドレイン領域に接続されたビットラインと、
前記ゲート電極に接続されたワードラインと、を具備し、
前記2つのソース・ドレイン領域間に流れる電流方向は、前記ワードラインの幅方向であり、
前記ワードラインは、ジグザグ状に延在し、
前記ビットラインは、ワードラインの幅方向に延在し、前記ワードラインのジグザグ状の頂点部を通る直線状であり、
前記トランジスタは、前記ワードラインの隣り合う前記頂点部間に配置され、
前記ワードラインの延在方向に隣接するトランジスタは1つの前記ソース・ドレイン領域を共有し、
隣接する2つの前記ビットラインは、1つのトランジスタの前記ワードラインの両側に形成された2つの前記ソース・ドレイン領域に、それぞれ接続され、
前記ビットラインのそれぞれについて、前記ワードラインの全てのジグザグ形状における屈曲方向が同一である半導体装置。 - 前記電荷蓄積領域は、前記半導体基板とゲート電極の間とゲート電極の側壁のいずれか一方に形成される請求項1に記載の半導体装置。
- 前記ワードラインは前記ゲート電極を兼ねて形成された請求項1または2に記載の半導体装置。
- 前記ビットラインの延在方向に隣接するトランジスタ間が酸化シリコン膜を用い素子分離された請求項1〜3のいずれかに記載の半導体装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2005/006265 WO2006106570A1 (ja) | 2005-03-31 | 2005-03-31 | 半導体装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2006106570A1 JPWO2006106570A1 (ja) | 2008-09-11 |
JP5099691B2 true JP5099691B2 (ja) | 2012-12-19 |
Family
ID=37073138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007512374A Expired - Fee Related JP5099691B2 (ja) | 2005-03-31 | 2005-03-31 | 半導体装置 |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP5099691B2 (ja) |
WO (1) | WO2006106570A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8716779B2 (en) * | 2009-07-30 | 2014-05-06 | Hynix Semiconductor Inc. | Flash memory device and mask for fabricating the same |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003318292A (ja) * | 2002-04-12 | 2003-11-07 | Samsung Electronics Co Ltd | 2ビット書き込み可能な不揮発性メモリ素子、その駆動方法及びその製造方法 |
JP2004342721A (ja) * | 2003-05-14 | 2004-12-02 | Seiko Epson Corp | 不揮発性記憶装置を含む半導体装置 |
JP2004349353A (ja) * | 2003-05-20 | 2004-12-09 | Sharp Corp | 半導体記憶装置及びその動作方法、並びに、携帯電子機器 |
-
2005
- 2005-03-31 JP JP2007512374A patent/JP5099691B2/ja not_active Expired - Fee Related
- 2005-03-31 WO PCT/JP2005/006265 patent/WO2006106570A1/ja not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003318292A (ja) * | 2002-04-12 | 2003-11-07 | Samsung Electronics Co Ltd | 2ビット書き込み可能な不揮発性メモリ素子、その駆動方法及びその製造方法 |
JP2004342721A (ja) * | 2003-05-14 | 2004-12-02 | Seiko Epson Corp | 不揮発性記憶装置を含む半導体装置 |
JP2004349353A (ja) * | 2003-05-20 | 2004-12-09 | Sharp Corp | 半導体記憶装置及びその動作方法、並びに、携帯電子機器 |
Also Published As
Publication number | Publication date |
---|---|
WO2006106570A1 (ja) | 2006-10-12 |
JPWO2006106570A1 (ja) | 2008-09-11 |
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