JP4477953B2 - メモリ素子の製造方法 - Google Patents
メモリ素子の製造方法 Download PDFInfo
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- JP4477953B2 JP4477953B2 JP2004205215A JP2004205215A JP4477953B2 JP 4477953 B2 JP4477953 B2 JP 4477953B2 JP 2004205215 A JP2004205215 A JP 2004205215A JP 2004205215 A JP2004205215 A JP 2004205215A JP 4477953 B2 JP4477953 B2 JP 4477953B2
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P10/00—Bonding of wafers, substrates or parts of devices
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/01—Manufacture or treatment
- H10B12/09—Manufacture or treatment with simultaneous manufacture of the peripheral circuit region and memory cells
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/50—Peripheral circuit region structures
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/01—Manufacture or treatment
- H10D84/0123—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs
- H10D84/0126—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs
- H10D84/0135—Manufacturing their gate conductors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/01—Manufacture or treatment
- H10D84/0123—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs
- H10D84/0126—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs
- H10D84/0135—Manufacturing their gate conductors
- H10D84/0142—Manufacturing their gate conductors the gate conductors having different shapes or dimensions
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/01—Manufacture or treatment
- H10D84/02—Manufacture or treatment characterised by using material-based technologies
- H10D84/03—Manufacture or treatment characterised by using material-based technologies using Group IV technology, e.g. silicon technology or silicon-carbide [SiC] technology
- H10D84/038—Manufacture or treatment characterised by using material-based technologies using Group IV technology, e.g. silicon technology or silicon-carbide [SiC] technology using silicon technology, e.g. SiGe
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/01—Manufacture or treatment
- H10B12/02—Manufacture or treatment for one transistor one-capacitor [1T-1C] memory cells
- H10B12/05—Making the transistor
- H10B12/053—Making the transistor the transistor being at least partially in a trench in the substrate
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10B—ELECTRONIC MEMORY DEVICES
- H10B12/00—Dynamic random access memory [DRAM] devices
- H10B12/30—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells
- H10B12/48—Data lines or contacts therefor
- H10B12/488—Word lines
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- Manufacturing & Machinery (AREA)
- Semiconductor Memories (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Description
B 周辺回路部
10 シリコン基板
15 素子分離領域
18 パッド酸化膜
20 エッチング阻止層
25 保護酸化膜
28 リセスゲートホール
29 フレーナーゲートホール
30 リセスマスク
35 ゲート酸化膜
40 下部ゲート電極ポリ層
45 上部ゲート電極層
50 ゲートマスク層
60 スペーサ
70 コバルトシリサイド層
Claims (5)
- 半導体基板にセル領域及び前記セル領域と分離された周辺回路領域を含むメモリ素子を製造する方法において、
前記半導体基板のセル領域及び前記周辺回路領域内にパッド酸化膜、エッチング阻止層、及び保護酸化膜を順次形成する段階と、
前記半導体基板の前記セル領域内に前記パッド酸化膜、前記エッチング阻止層、及び前記保護酸化膜を通過し前記半導体基板が掘り込まれたリセスゲートホールを形成する段階と、
前記周辺回路領域内の前記保護酸化膜、前記エッチング阻止層、及び前記パッド酸化膜をエッチングする段階と、
前記リセスゲートホール及び前記周辺回路領域内にゲート酸化膜を形成する段階と、
前記セル領域及び前記周辺回路領域内に形成された前記ゲート酸化膜上にゲート層を形成する段階と、
前記セル領域内にリセスセルゲート構造物及び前記周辺回路領域内にプレーナーゲート構造物を形成するために、前記リセスゲートホール内の前記ゲート酸化膜が残留されるように前記ゲート層及び前記ゲート酸化膜を同時にパターニングする段階と、
前記セル領域内に形成された前記リセスセルゲート構造物の前記保護酸化膜から上方に突出された部分及び前記周辺回路領域内の前記プレーナーゲート構造物にスペーサを形成する段階と、を含むことを特徴とするメモリ素子の製造方法。 - 前記半導体基板の前記周辺回路領域内にコバルトシリサイド層を形成する段階を更に具備することを特徴とする請求項1記載のメモリ素子の製造方法。
- 基板上にメモリセル領域及び周辺回路領域を含むメモリ素子を製造する方法において、
前記メモリセル領域内の複数個のメモリセル及び前記周辺回路領域内の複数個のトランジスタの範囲を限定する素子分離領域を形成させる段階と、
前記メモリセル領域及び前記周辺回路領域を含む前記基板上にパッド酸化膜を形成する段階と、
前記パッド酸化膜上にエッチング阻止層を形成する段階と、
前記エッチング阻止層上に保護酸化膜を形成する段階と、
前記保護酸化膜上にフォトレジスト層を塗布する段階と、
前記メモリセル領域内のフォトレジスト層によりリセスマスクを形成する段階と、
前記メモリセル領域に複数個のリセスゲートホールを形成するために、前記リセスマスクを用いて前記メモリセル領域内の前記基板をエッチングする段階と、
前記周辺回路領域内の前記パッド酸化膜、前記エッチング阻止層、及び前記保護酸化膜を除去する段階と、
前記メモリセル領域に形成された前記パッド酸化膜、前記エッチング阻止層、前記保護酸化膜、及び前記基板からなる複数個のリセスゲートホールの内面を含む前記メモリセル領域の前記保護酸化膜及び前記周辺回路領域上にゲート酸化膜を形成する段階と、
前記ゲート酸化膜上にゲート層を形成する段階と、
前記メモリセル領域内で前記複数個のメモリセルのためのリセスセルゲート構造物及び前記周辺回路領域内の複数個のトランジスタのためのプレーナーゲート構造物を同時に形成するために、前記リセスセルゲート構造物となる前記リセスゲートホール内の前記ゲート酸化膜とその上の前記ゲート層及び前記プレーナーゲート構造物となる前記ゲート酸化膜とその上の前記ゲート層が残留するように前記ゲート層及び前記ゲート酸化膜を同時にパターニングする段階と、
前記メモリセル領域内に形成された前記リセスセルゲート構造物の前記保護酸化膜から上方に突出された部分及び前記周辺回路領域内の前記プレーナーゲート構造物にスペーサを形成する段階と、を含むことを特徴とするメモリ素子の製造方法。 - 前記スペーサを形成する段階の後、
前記周辺回路領域の前記基板上にコバルトシリサイド層を形成する段階を更に具備することを特徴とする請求項3記載のメモリ素子の製造方法。 - 前記コバルトシリサイド層を形成する段階は、
前記周辺回路領域の露出された前記基板上に、シリコンエピタキシャル層を形成する段階と、
前記シリコンエピタキシャル層上にコバルト層を形成する段階と、
前記シリコンエピタキシャル層と前記コバルト層を反応させて前記コバルトシリサイド層を形成する段階と、を更に具備することを特徴とする請求項4記載のメモリ素子の製造方法。
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2003-0048079A KR100511045B1 (ko) | 2003-07-14 | 2003-07-14 | 리세스된 게이트 전극을 갖는 반도체 소자의 집적방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005039270A JP2005039270A (ja) | 2005-02-10 |
| JP4477953B2 true JP4477953B2 (ja) | 2010-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2004205215A Expired - Fee Related JP4477953B2 (ja) | 2003-07-14 | 2004-07-12 | メモリ素子の製造方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US6939765B2 (ja) |
| JP (1) | JP4477953B2 (ja) |
| KR (1) | KR100511045B1 (ja) |
| CN (1) | CN1577802A (ja) |
| DE (1) | DE10359493B4 (ja) |
| GB (1) | GB2404083B (ja) |
| TW (1) | TWI278969B (ja) |
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| KR102540965B1 (ko) * | 2018-10-17 | 2023-06-07 | 삼성전자주식회사 | 반도체 소자 |
| US11502181B2 (en) | 2019-11-08 | 2022-11-15 | Nanya Technology Corporation | Semiconductor device and method for fabricating the same |
| CN113632169B (zh) * | 2021-06-30 | 2024-06-18 | 长江存储科技有限责任公司 | 具有凹陷栅极晶体管的外围电路及其形成方法 |
| WO2023272584A1 (en) * | 2021-06-30 | 2023-01-05 | Yangtze Memory Technologies Co., Ltd. | Peripheral circuit having recess gate transistors and method for forming the same |
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| JP2755592B2 (ja) * | 1988-02-23 | 1998-05-20 | 株式会社東芝 | 半導体記憶装置およびその製造方法 |
| US5677219A (en) * | 1994-12-29 | 1997-10-14 | Siemens Aktiengesellschaft | Process for fabricating a DRAM trench capacitor |
| JP2751909B2 (ja) | 1996-02-26 | 1998-05-18 | 日本電気株式会社 | 半導体装置の製造方法 |
| US5777370A (en) * | 1996-06-12 | 1998-07-07 | Advanced Micro Devices, Inc. | Trench isolation of field effect transistors |
| US6214670B1 (en) * | 1999-07-22 | 2001-04-10 | Taiwan Semiconductor Manufacturing Company | Method for manufacturing short-channel, metal-gate CMOS devices with superior hot carrier performance |
| JP3530104B2 (ja) * | 2000-04-19 | 2004-05-24 | 沖電気工業株式会社 | 半導体集積回路装置の製造方法 |
| US6555895B1 (en) * | 2000-07-17 | 2003-04-29 | General Semiconductor, Inc. | Devices and methods for addressing optical edge effects in connection with etched trenches |
| JP4635333B2 (ja) | 2000-12-14 | 2011-02-23 | ソニー株式会社 | 半導体装置の製造方法 |
| US6498062B2 (en) * | 2001-04-27 | 2002-12-24 | Micron Technology, Inc. | DRAM access transistor |
| JP2003007854A (ja) * | 2001-06-22 | 2003-01-10 | Nec Corp | 半導体記憶装置及びその製造方法 |
| US6429068B1 (en) | 2001-07-02 | 2002-08-06 | International Business Machines Corporation | Structure and method of fabricating embedded vertical DRAM arrays with silicided bitline and polysilicon interconnect |
| US6818947B2 (en) * | 2002-09-19 | 2004-11-16 | Fairchild Semiconductor Corporation | Buried gate-field termination structure |
| KR100468771B1 (ko) * | 2002-10-10 | 2005-01-29 | 삼성전자주식회사 | 모스 트랜지스터의 제조방법 |
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- 2003-09-24 CN CNA031597610A patent/CN1577802A/zh active Pending
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| DE10359493B4 (de) | 2010-05-12 |
| DE10359493A1 (de) | 2005-02-17 |
| GB2404083B (en) | 2005-11-02 |
| CN1577802A (zh) | 2005-02-09 |
| TWI278969B (en) | 2007-04-11 |
| GB0327716D0 (en) | 2003-12-31 |
| US6939765B2 (en) | 2005-09-06 |
| KR100511045B1 (ko) | 2005-08-30 |
| TW200503179A (en) | 2005-01-16 |
| JP2005039270A (ja) | 2005-02-10 |
| KR20050008223A (ko) | 2005-01-21 |
| GB2404083A (en) | 2005-01-19 |
| US20050275014A1 (en) | 2005-12-15 |
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