JP5007465B2 - コンデンサ装置の形成方法 - Google Patents
コンデンサ装置の形成方法 Download PDFInfo
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- JP5007465B2 JP5007465B2 JP2006542721A JP2006542721A JP5007465B2 JP 5007465 B2 JP5007465 B2 JP 5007465B2 JP 2006542721 A JP2006542721 A JP 2006542721A JP 2006542721 A JP2006542721 A JP 2006542721A JP 5007465 B2 JP5007465 B2 JP 5007465B2
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Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D1/00—Resistors, capacitors or inductors
- H10D1/01—Manufacture or treatment
- H10D1/041—Manufacture or treatment of capacitors having no potential barriers
- H10D1/042—Manufacture or treatment of capacitors having no potential barriers using deposition processes to form electrode extensions
-
- 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
- H10B12/03—Making the capacitor or connections thereto
- H10B12/033—Making the capacitor or connections thereto the capacitor extending over the transistor
-
- 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
- H10B12/30—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells
- H10B12/31—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells having a storage electrode stacked over the transistor
- H10B12/318—DRAM devices comprising one-transistor - one-capacitor [1T-1C] memory cells having a storage electrode stacked over the transistor the storage electrode having multiple segments
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D1/00—Resistors, capacitors or inductors
- H10D1/01—Manufacture or treatment
- H10D1/045—Manufacture or treatment of capacitors having potential barriers, e.g. varactors
- H10D1/047—Manufacture or treatment of capacitors having potential barriers, e.g. varactors of conductor-insulator-semiconductor capacitors, e.g. trench capacitors
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D1/00—Resistors, capacitors or inductors
- H10D1/60—Capacitors
- H10D1/68—Capacitors having no potential barriers
- H10D1/692—Electrodes
- H10D1/711—Electrodes having non-planar surfaces, e.g. formed by texturisation
- H10D1/716—Electrodes having non-planar surfaces, e.g. formed by texturisation having vertical extensions
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D89/00—Aspects of integrated devices not covered by groups H10D84/00 - H10D88/00
- H10D89/10—Integrated device layouts
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Semiconductor Memories (AREA)
- Semiconductor Integrated Circuits (AREA)
Description
群と、その片隣りの行に沿って配置されたコンデンサ群)を接続する行82を形成する。開口部32、34、36、38、40、42、44、46、48、50、52及び54中の導電層60の一部が図8中破線で示されているが、これら破線は前記導電層の一部がマスキング材80で覆われていることを示している。マスク80の例示的材料としてはフォトレジストがあり、かかる材料はフォトリトグラフィー加工を用いて図示されたパターンに作製される。パターン化されたマスク80の図示された形状は、本発明方法において利用可能な多数のパターンのうちの一つである。図示されたパターン化されたマスク80の形状は図8の図に対して水平方向へ延びるストライプ状になっている。別の例示的形状(図示せず)において、マスク材80のパターン化されたストライプを特定の容器を全体的に覆うように拡げて図8の図に対して斜めに延ばし、及び/または図8の図に対して縦方向へ延ばすことも可能である。
Claims (4)
- 複数のコンデンサ装置を形成する方法であって、
基板上へ第一材料を含む構造体を設ける工程と、
前記第一材料の少なくとも一部上へ保持構造体を形成する工程と、
前記第一材料中に延びる開口部を形成する工程と、
第一導電層を用いて前記開口部内に導電性構造体を形成する工程であって、前記導電性構造体は前記第一材料に沿った外側側壁を有する、工程と、
前記保持構造体の下方から前記第一材料の少なくとも一部を除去して前記導電性構造体の前記外側側壁の少なくとも一部を露出させる工程であって、前記第一材料の除去中に前記保持構造体が前記導電性構造体を保持する、工程と、
前記外側側壁の露出部分に沿ってコンデンサ誘電材料を形成する工程と、
前記コンデンサ誘電材料上へ第二導電層を形成する工程とを含み、
前記第一材料は硼燐珪酸ガラスを含み、
前記第一材料の少なくとも一部が等方性エッチングによって除去され、
前記保持構造体は窒化珪素と第二材料とを含み、前記等方性エッチング処理中における前記第二材料に対する硼燐珪酸ガラスの選択性が窒化珪素に対する硼燐珪酸ガラスの選択性よりも高く、
前記第二材料の第一部分が前記窒化珪素の上にあり、
前記第二材料の第二部分が前記窒化珪素の下にあり、
前記第二材料の第三部分が前記第一部分、前記第二部分、及び前記窒化珪素と物理的に接触していることを特徴とする方法。 - 前記第二材料は多結晶質珪素を含むことを特徴とする請求項1記載の方法。
- 前記多結晶質珪素が前記窒化珪素の上部及び下部にあることを特徴とする請求項2記載の方法。
- 前記第一材料の少なくとも一部を除去する工程の後、前記保持構造体の少なくとも一部を除去する工程をさらに含むことを特徴とする請求項1記載の方法。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/733,181 | 2003-12-10 | ||
| US10/733,181 US7125781B2 (en) | 2003-09-04 | 2003-12-10 | Methods of forming capacitor devices |
| PCT/US2004/040252 WO2005062349A1 (en) | 2003-12-10 | 2004-12-01 | Containing capacitors and method of forming |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012044522A Division JP2012146993A (ja) | 2003-12-10 | 2012-02-29 | コンデンサ装置の形成方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2007512716A JP2007512716A (ja) | 2007-05-17 |
| JP5007465B2 true JP5007465B2 (ja) | 2012-08-22 |
Family
ID=34710430
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006542721A Expired - Fee Related JP5007465B2 (ja) | 2003-12-10 | 2004-12-01 | コンデンサ装置の形成方法 |
| JP2012044522A Ceased JP2012146993A (ja) | 2003-12-10 | 2012-02-29 | コンデンサ装置の形成方法 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2012044522A Ceased JP2012146993A (ja) | 2003-12-10 | 2012-02-29 | コンデンサ装置の形成方法 |
Country Status (7)
| Country | Link |
|---|---|
| US (4) | US7125781B2 (ja) |
| EP (1) | EP1700332B1 (ja) |
| JP (2) | JP5007465B2 (ja) |
| KR (1) | KR100868812B1 (ja) |
| CN (1) | CN100405541C (ja) |
| TW (1) | TWI252511B (ja) |
| WO (1) | WO2005062349A1 (ja) |
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| US20060063345A1 (en) | 2006-03-23 |
| JP2012146993A (ja) | 2012-08-02 |
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| TWI252511B (en) | 2006-04-01 |
| US20050054159A1 (en) | 2005-03-10 |
| EP1700332A1 (en) | 2006-09-13 |
| JP2007512716A (ja) | 2007-05-17 |
| EP1700332B1 (en) | 2014-11-26 |
| US20050287780A1 (en) | 2005-12-29 |
| WO2005062349A1 (en) | 2005-07-07 |
| US7420238B2 (en) | 2008-09-02 |
| CN100405541C (zh) | 2008-07-23 |
| KR100868812B1 (ko) | 2008-11-14 |
| CN1890778A (zh) | 2007-01-03 |
| US20060063344A1 (en) | 2006-03-23 |
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