JP2007507875A - 2−トランジスタメモリセル及びその製造方法 - Google Patents
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- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 2
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- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B41/00—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates
- H10B41/30—Electrically erasable-and-programmable ROM [EEPROM] devices comprising floating gates characterised by the memory core region
-
- 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/401—Multistep manufacturing processes
- H01L29/4011—Multistep manufacturing processes for data storage electrodes
- H01L29/40114—Multistep manufacturing processes for data storage electrodes the electrodes comprising a conductor-insulator-conductor-insulator-semiconductor structure
-
- 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
- H01L29/40—Electrodes ; Multistep manufacturing processes therefor
- H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
- H01L29/423—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
- H01L29/42312—Gate electrodes for field effect devices
- H01L29/42316—Gate electrodes for field effect devices for field-effect transistors
- H01L29/4232—Gate electrodes for field effect devices for field-effect transistors with insulated gate
- H01L29/42324—Gate electrodes for transistors with a floating gate
- H01L29/42328—Gate electrodes for transistors with a floating gate with at least one additional gate other than the floating gate and the control gate, e.g. program gate, erase gate or select gate
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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
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66825—Unipolar field-effect transistors with an insulated gate, i.e. MISFET with a floating gate
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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
- 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
- H01L29/788—Field effect transistors with field effect produced by an insulated gate with floating gate
- H01L29/7881—Programmable transistors with only two possible levels of programmation
- H01L29/7883—Programmable transistors with only two possible levels of programmation charging by tunnelling of carriers, e.g. Fowler-Nordheim tunnelling
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B63/00—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices
- H10B63/30—Resistance change memory devices, e.g. resistive RAM [ReRAM] devices comprising selection components having three or more electrodes, e.g. transistors
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- 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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- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Non-Volatile Memory (AREA)
- Semiconductor Memories (AREA)
Abstract
Description
Claims (11)
- メモリゲートスタックを有する記憶トランジスタ及び選択トランジスタを有する2-トランジスタメモリセルを基板上に製造する方法であって、トンネル誘電層が前記基板と前記メモリゲートスタックとの間にもたらされ、前記方法は、
第一の導電層及び第二の導電層をもたらし、前記第二の導電層をエッチし、それによってコントロールゲートを形成し、前記第一の導電層をエッチし、それによってフローティングゲートを形成することによって前記メモリゲートスタックを形成するステップ
を有し、
前記方法は更に、前記第一の導電層がエッチされる前に、前記トンネル誘電層下に形成されるべきチャネルの方向で前記コントロールゲートに対してスペーサを形成するステップと、その後、前記第一の導電層をエッチするために前記スペーサをハードマスクとして使用し、それによって前記フローティングゲートを形成するステップとを有する
ことを特徴とする方法。 - 前記スペーサは、酸化物スペーサを通じた酸素拡散部よりも少ない量のオーダになる物質を通じた酸素拡散部を有する誘電物質から形成される請求項1に記載の方法。
- 前記酸化物スペーサを通じた酸素拡散部よりも少ない量のオーダになる物質を通じた酸素拡散部を有する前記誘電物質は、シリコン窒化物、シリコンカーバイド、又は金属酸化物の一つ又はそれより多くになる請求項2に記載の方法。
- 前記メモリゲートスタックが形成される前に、前記基板上に前記トンネル誘電層をもたらし、前記メモリゲートスタックの形成後に、少なくとも前記選択トランジスタが形成されるべき位置において選択エッチング技術によって前記トンネル誘電層を除去し、前記選択エッチング技術は、前記基板に比べて前記トンネル誘電層を優先的にエッチするステップを更に有する請求項1乃至3の何れか一項に記載の方法。
- 前記第一の導電層のエッチングの後、フローティングゲート誘電体を、前記形成されたフローティングゲートに隣接してもたらし、同時にアクセスゲート誘電体をもたらすステップを有する請求項1乃至4の何れか一項に記載の方法。
- 前記メモリゲートスタックは、前記第一の導電層と前記第二の導電層との間に層間誘電層を有し、前記コントロールゲートが形成された後だが前記スペーサが形成される前に、前記層間誘電層の部分を除去するステップを更に有する請求項1乃至5の何れか一項に記載の方法。
- 前記選択トランジスタがアクセスゲートを有し、前記アクセスゲート側における前記スペーサが依然もたらされている一方で前記アクセスゲートを形成するステップを有する請求項1乃至6の何れか一項に記載の方法。
- 記憶トランジスタ及び選択トランジスタを有し、前記記憶トランジスタはフローティングゲート及びコントロールゲートを有する2-トランジスタメモリセルであって、前記コントロールゲートは前記フローティングゲートよりも小さくなり、スペーサが、前記コントロールゲートに隣接してもたらされる2-トランジスタメモリセル。
- 前記スペーサは、酸化物スペーサを通じた酸素拡散部よりも少ない量のオーダになる物質を通じた酸素拡散部を有する誘電物質から形成される請求項8に記載のメモリセル。
- 前記選択トランジスタはアクセスゲートを有し、スペーサが前記コントロールゲートと前記アクセスゲートとの間にもたらされ、フローティングゲート誘電体が前記フローティングゲートと前記アクセスゲートとの間にもたらされ、前記スペーサは前記フローティングゲート誘電体よりも厚くなる請求項8又は9に記載のメモリセル。
- 請求項8乃至10の何れか一項に記載のメモリセルを有する電子デバイス。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03103607 | 2003-09-30 | ||
PCT/IB2004/051795 WO2005031859A1 (en) | 2003-09-30 | 2004-09-20 | 2-transistor memory cell and method for manufacturing |
Publications (1)
Publication Number | Publication Date |
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JP2007507875A true JP2007507875A (ja) | 2007-03-29 |
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JP2006530903A Pending JP2007507875A (ja) | 2003-09-30 | 2004-09-20 | 2−トランジスタメモリセル及びその製造方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20070034936A1 (ja) |
EP (1) | EP1671367A1 (ja) |
JP (1) | JP2007507875A (ja) |
KR (1) | KR20060084444A (ja) |
TW (1) | TW200518268A (ja) |
WO (1) | WO2005031859A1 (ja) |
Cited By (2)
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JP2007027726A (ja) * | 2005-07-12 | 2007-02-01 | Samsung Electronics Co Ltd | Nand型フラッシュメモリ装置及びその製造方法 |
KR100882721B1 (ko) * | 2007-12-10 | 2009-02-06 | 주식회사 동부하이텍 | 반도체 소자 및 그 제조방법 |
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US8022489B2 (en) * | 2005-05-20 | 2011-09-20 | Macronix International Co., Ltd. | Air tunnel floating gate memory cell |
US7372098B2 (en) * | 2005-06-16 | 2008-05-13 | Micron Technology, Inc. | Low power flash memory devices |
KR100678479B1 (ko) * | 2005-07-20 | 2007-02-02 | 삼성전자주식회사 | 3-트랜지스터 메모리 셀을 갖는 비휘발성 메모리 소자들 및그 제조방법들 |
US7414889B2 (en) * | 2006-05-23 | 2008-08-19 | Macronix International Co., Ltd. | Structure and method of sub-gate and architectures employing bandgap engineered SONOS devices |
US8320191B2 (en) | 2007-08-30 | 2012-11-27 | Infineon Technologies Ag | Memory cell arrangement, method for controlling a memory cell, memory array and electronic device |
US8551855B2 (en) * | 2009-10-23 | 2013-10-08 | Sandisk 3D Llc | Memory cell that includes a carbon-based reversible resistance switching element compatible with a steering element, and methods of forming the same |
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US8237146B2 (en) | 2010-02-24 | 2012-08-07 | Sandisk 3D Llc | Memory cell with silicon-containing carbon switching layer and methods for forming the same |
US20110210306A1 (en) * | 2010-02-26 | 2011-09-01 | Yubao Li | Memory cell that includes a carbon-based memory element and methods of forming the same |
US8471360B2 (en) | 2010-04-14 | 2013-06-25 | Sandisk 3D Llc | Memory cell with carbon switching material having a reduced cross-sectional area and methods for forming the same |
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US11037923B2 (en) * | 2012-06-29 | 2021-06-15 | Intel Corporation | Through gate fin isolation |
WO2017213637A1 (en) * | 2016-06-08 | 2017-12-14 | Intel Corporation | Quantum dot devices with patterned gates |
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2004
- 2004-09-20 JP JP2006530903A patent/JP2007507875A/ja active Pending
- 2004-09-20 KR KR1020067006096A patent/KR20060084444A/ko not_active Application Discontinuation
- 2004-09-20 WO PCT/IB2004/051795 patent/WO2005031859A1/en active Application Filing
- 2004-09-20 US US10/574,030 patent/US20070034936A1/en not_active Abandoned
- 2004-09-20 EP EP04770033A patent/EP1671367A1/en not_active Withdrawn
- 2004-09-27 TW TW093129263A patent/TW200518268A/zh unknown
Patent Citations (4)
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JPH10200003A (ja) * | 1996-12-28 | 1998-07-31 | Lg Semicon Co Ltd | フラッシュメモリセルの製造方法 |
US5991204A (en) * | 1998-04-15 | 1999-11-23 | Chang; Ming-Bing | Flash eeprom device employing polysilicon sidewall spacer as an erase gate |
JP2002538608A (ja) * | 1999-02-23 | 2002-11-12 | アクトランズ システム インコーポレイテッド | 自己整列ゲートを有するフラッシュメモリセル及び製造方法 |
WO2002025733A2 (en) * | 2000-09-22 | 2002-03-28 | Sandisk Corporation | Non-volatile memory cell array and methods of forming |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007027726A (ja) * | 2005-07-12 | 2007-02-01 | Samsung Electronics Co Ltd | Nand型フラッシュメモリ装置及びその製造方法 |
KR100882721B1 (ko) * | 2007-12-10 | 2009-02-06 | 주식회사 동부하이텍 | 반도체 소자 및 그 제조방법 |
Also Published As
Publication number | Publication date |
---|---|
KR20060084444A (ko) | 2006-07-24 |
TW200518268A (en) | 2005-06-01 |
US20070034936A1 (en) | 2007-02-15 |
WO2005031859A1 (en) | 2005-04-07 |
EP1671367A1 (en) | 2006-06-21 |
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