JPH10500253A - 自己増幅ダイナミックmosトランジスタメモリセルを有する装置の製法 - Google Patents
自己増幅ダイナミックmosトランジスタメモリセルを有する装置の製法Info
- Publication number
- JPH10500253A JPH10500253A JP7529315A JP52931595A JPH10500253A JP H10500253 A JPH10500253 A JP H10500253A JP 7529315 A JP7529315 A JP 7529315A JP 52931595 A JP52931595 A JP 52931595A JP H10500253 A JPH10500253 A JP H10500253A
- Authority
- JP
- Japan
- Prior art keywords
- groove
- doped region
- doped
- gate electrode
- region
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body
- H01L27/06—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration
- H01L27/0611—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration integrated circuits having a two-dimensional layout of components without a common active region
- H01L27/0617—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration integrated circuits having a two-dimensional layout of components without a common active region comprising components of the field-effect type
- H01L27/0629—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration integrated circuits having a two-dimensional layout of components without a common active region comprising components of the field-effect type in combination with diodes, or resistors, or capacitors
-
- 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
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.自己増幅MOSトランジスタメモリセルを有する装置を製造する方法におい て、 シリコン基板(1)に、垂直なMOSトランジスタのソース領域、チャネル領 域及びドレイン領域のために少なくとも第一のドープされた領域(2)、第一の ドープされた領域の上に配置された第二のドープされた領域(3)及び第二のド ープされた領域の上に配置された第三のドープされた領域(4)を含むドープさ れた領域の垂直な配列を施与し、 上記第一の領域(2)中に達しかつ上記第二の領域(3)及び上記第三の領域 (4)を横断する第一の溝(5)及び第二の溝(6)をエッチング処理により形 成し、 第一の溝(5)の表面にゲート誘電体(7)を施与しかつ第二の溝(6)の表 面に第二のゲート誘電体(8)を施与し、 第一の溝(5)中に第一のゲート電極(9)を形成しかつ第二の溝(6)中に 第二のゲート電極(10)を形成し、 第一の溝(5)と第二の溝(6)の間に、第一のドープされた領域(2)、第 二のドープされた領域(3)及び第三のドープされた領域(4)を分断する第三 の溝(13)を形成し、 第三の溝(13)に、少なくとも第一のドープされた領域(2)及び第二のド ープされた領域(3)の範囲内で、第一の絶縁構造体(14)を施与し、 第三の溝(13)によって分離された、第三のドープされた領域(4)の部分 を接続構造体(20)によって電気的に相互に接続し、 一方の端子が第三のドープされた領域(4)と導電接続しておりかつもう一方 の端子が第二のゲート電極(10)と導電接続しているダイオード構造体を形成 することを特徴とする、自己増幅MOSトランジスタメモリセルを有する装置の 製法。 2.シリコン基板(1)が第一の導電形でドープされており、 シリコン基板(1)上での第一のドープされた領域の形成のために第一の導電 形と反対の第二の導電形によってドープされたシリコン層(2)をエピタキシャ ル成長させ、 第二のドープされた領域(3)の形成のために第一の導電形によってドープさ れたシリコン層(3)をLPCVD−エピタキシー(低圧化学蒸着−エピタキシ ー)もしくは分子線エピタキシーによって施与し、 第三のドープされた領域の形成のために第二の導電形でドープされたシリコン 層(4)をLPCVD−エピタキシーもしくは分子線エピタキシーによって 施与する、 請求項1記載の方法。 3.ダイオード構造体をショットキーダイオードとして形成する、 請求項1又は2記載の方法。 4.ダイオード構造体をn+p−ダイオード(10、11)として形成する、 請求項1又は2記載の方法。 5.第二のゲート電極(10)をドープされたポリシリコンから形成し、 第二のゲート電極(10)とともにダイオード構造体となるドープされたポリ シリコン構造体(11)を形成し、 ドープされたポリシリコン構造体(11)を第三のドープされた領域と導電接 続する、 請求項4記載の方法。 6.第二のゲート電極(10)を第二の溝(6)中で第二のドープされた領域( 3)の高さに本質的に相応する高さで形成し、 ドープされたポリシリコン構造体(11)を第二の溝(6)中で第二のゲート 電極(10)の上で形成し、 ドープされたポリシリコン構造体(11)の表面に金属珪化物層(12)を施 与し、 金属珪化物層(12)及び第三のドープされた領域 (4)とそれぞれ少なくとも部分的に重複するドープされたポリシリコンストリ ップ(21)を形成する、 請求項5記載の方法。 7.ゲート電極(10)とドープされたポリシリコン構造体(11)の間に拡散 障壁層(10a)を形成する、 請求項5又は6記載の方法。 8.第一のドープされた領域(2)及び第三のドープされた領域(4)中のドー ピング物質濃度を1019cm-3と同じかもしくはこれより小さい範囲内に調整し 、 第二のドープされた領域(3)中のドーピング物質濃度を1018cm-3と同じ かもしくはこれより小さい範囲内に調整し、 第一のゲート誘電体(7)及び第二のゲート誘電体(8)を700〜800℃ で熱酸化によって形成する、 請求項1から7までのいずれか1項に記載の方法。 9.接続構造体(20)を第三の溝(13)の上に第三のドープされた領域(4 )と同じ導電形のドープされたポリシリコンから形成する、 請求項1から8までのいずれか1項に記載の方法。 10.シリコン基板(1)中にマトリクス状に配置された多数のメモリセルを製 造し、 第一の溝(5)、第一の溝(6)及び第三の溝(13)をそれぞれ平行な帯状 物として形成し、 第一の溝(5)の内側に、第一のドープされた領域(2)を分断する第四の溝 (15)を形成し、かつこの第四の溝中に、少なくとも第一のドープされた領域 (2)の部分を第四の溝(15)の両側で相互に絶縁する第二の絶縁構造体(1 7)を形成し、 第二の溝(6)の内部に第一のドープされた領域(4)を分断する第五の溝( 16)を形成し、この第五の溝中に、第一のドープされた層(2)、第二のゲー ト電極(10)並びにダイオード構造体(10、11)の部分を第五の溝(16 )の両側で相互に絶縁する第三の絶縁構造体(19)を形成し、 第一の溝(5)、第二の溝(6)及び第三の溝(13)と交差しかつ第一のド ープされた領域(2)を分断することなく第一のドープされた領域(2)中に達 する第六の溝を形成し、かつこの第六の溝を絶縁構造体(22)で充填し、 第六の溝に平行して延びるワード線を形成し、このワード線をワード線接点( 25)を介してゲート電極(9)と導電接続し、 ワード線に沿って隣接するメモリセルを鏡像対称的に配置し、 それぞれの場合に第一の溝(5)と第三の溝(13)の間に配置された第一の ドープされた領域(2) の部分をビット線(2a)として接続し、かつ第三の溝(13)と第二の溝(6 )の間に配置された第一のドープされた領域(2)の部分を供給電圧線(2b) として接続する、 請求項1から9までのいずれか1項に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4417150.1 | 1994-05-17 | ||
DE4417150A DE4417150C2 (de) | 1994-05-17 | 1994-05-17 | Verfahren zur Herstellung einer Anordnung mit selbstverstärkenden dynamischen MOS-Transistorspeicherzellen |
PCT/EP1995/001656 WO1995031828A1 (de) | 1994-05-17 | 1995-05-02 | Gain cell dram struktur und verfahren zur herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH10500253A true JPH10500253A (ja) | 1998-01-06 |
JP3744938B2 JP3744938B2 (ja) | 2006-02-15 |
Family
ID=6518220
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52931595A Expired - Fee Related JP3744938B2 (ja) | 1994-05-17 | 1995-05-02 | 自己増幅ダイナミックmosトランジスタメモリセルを有する装置の製法 |
Country Status (8)
Country | Link |
---|---|
US (1) | US5710072A (ja) |
EP (1) | EP0760166B1 (ja) |
JP (1) | JP3744938B2 (ja) |
KR (1) | KR100338462B1 (ja) |
AT (1) | ATE165188T1 (ja) |
DE (2) | DE4417150C2 (ja) |
TW (1) | TW295724B (ja) |
WO (1) | WO1995031828A1 (ja) |
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DE19723936A1 (de) * | 1997-06-06 | 1998-12-10 | Siemens Ag | DRAM-Zellenanordnung und Verfahren zu deren Herstellung |
US6110799A (en) * | 1997-06-30 | 2000-08-29 | Intersil Corporation | Trench contact process |
US6037628A (en) | 1997-06-30 | 2000-03-14 | Intersil Corporation | Semiconductor structures with trench contacts |
DE19800340A1 (de) * | 1998-01-07 | 1999-07-15 | Siemens Ag | Halbleiterspeicheranordnung und Verfahren zu deren Herstellung |
TW406419B (en) * | 1998-01-15 | 2000-09-21 | Siemens Ag | Memory-cells arrangement and its production method |
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KR100859701B1 (ko) * | 2002-02-23 | 2008-09-23 | 페어차일드코리아반도체 주식회사 | 고전압 수평형 디모스 트랜지스터 및 그 제조 방법 |
US20050180845A1 (en) * | 2002-04-04 | 2005-08-18 | Vreeke Mark S. | Miniature/micro-scale power generation system |
US6621129B1 (en) * | 2002-05-24 | 2003-09-16 | Macronix International Co., Ltd. | MROM memory cell structure for storing multi level bit information |
JP3594140B2 (ja) * | 2002-06-26 | 2004-11-24 | 沖電気工業株式会社 | 半導体装置の製造方法 |
TWI320571B (en) * | 2002-09-12 | 2010-02-11 | Qs Semiconductor Australia Pty Ltd | Dynamic nonvolatile random access memory ne transistor cell and random access memory array |
US7576388B1 (en) * | 2002-10-03 | 2009-08-18 | Fairchild Semiconductor Corporation | Trench-gate LDMOS structures |
US7033891B2 (en) * | 2002-10-03 | 2006-04-25 | Fairchild Semiconductor Corporation | Trench gate laterally diffused MOSFET devices and methods for making such devices |
US6710418B1 (en) | 2002-10-11 | 2004-03-23 | Fairchild Semiconductor Corporation | Schottky rectifier with insulation-filled trenches and method of forming the same |
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KR100994719B1 (ko) * | 2003-11-28 | 2010-11-16 | 페어차일드코리아반도체 주식회사 | 슈퍼정션 반도체장치 |
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-
1994
- 1994-05-17 DE DE4417150A patent/DE4417150C2/de not_active Expired - Fee Related
-
1995
- 1995-03-02 TW TW084101963A patent/TW295724B/zh not_active IP Right Cessation
- 1995-05-02 US US08/737,236 patent/US5710072A/en not_active Expired - Lifetime
- 1995-05-02 WO PCT/EP1995/001656 patent/WO1995031828A1/de active IP Right Grant
- 1995-05-02 KR KR1019960706266A patent/KR100338462B1/ko not_active IP Right Cessation
- 1995-05-02 AT AT95919372T patent/ATE165188T1/de active
- 1995-05-02 EP EP95919372A patent/EP0760166B1/de not_active Expired - Lifetime
- 1995-05-02 JP JP52931595A patent/JP3744938B2/ja not_active Expired - Fee Related
- 1995-05-02 DE DE59501925T patent/DE59501925D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US5710072A (en) | 1998-01-20 |
DE4417150C2 (de) | 1996-03-14 |
WO1995031828A1 (de) | 1995-11-23 |
KR100338462B1 (ko) | 2002-11-22 |
EP0760166A1 (de) | 1997-03-05 |
DE4417150A1 (de) | 1995-11-23 |
ATE165188T1 (de) | 1998-05-15 |
EP0760166B1 (de) | 1998-04-15 |
JP3744938B2 (ja) | 2006-02-15 |
TW295724B (ja) | 1997-01-11 |
DE59501925D1 (de) | 1998-05-20 |
KR970703048A (ko) | 1997-06-10 |
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