Method for making an open bit line memory cell with a vertical t

Semiconductor device manufacturing: process – Making field effect device having pair of active regions... – Having insulated gate

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438336, H01L 218242

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active

061566047

ABSTRACT:
A circuit and method for a memory cell with a vertical transistor and a trench capacitor. The cell includes an access transistor that is formed in a pillar of a single crystal semiconductor material. The transistor has vertically aligned first and second source/drain regions and a body region. The transistor also includes a gate that is formed along a side of the pillar. A trench capacitor is also included in the cell. A first plate of the trench capacitor is formed integral with the first source/drain region. A second plate is disposed adjacent to the first plate and separated from the first plate by a gate oxide.

REFERENCES:
patent: 4020364 (1977-04-01), Kuijk
patent: 4051354 (1977-09-01), Choate
patent: 4313106 (1982-01-01), Hsu
patent: 4604162 (1986-08-01), Sobczak
patent: 4617649 (1986-10-01), Kyomasu et al.
patent: 4663831 (1987-05-01), Birrittella et al.
patent: 4673962 (1987-06-01), Chatterjee et al.
patent: 4701423 (1987-10-01), Szluk
patent: 4716314 (1987-12-01), Mulder et al.
patent: 4761768 (1988-08-01), Turner et al.
patent: 4766569 (1988-08-01), Turner et al.
patent: 4845537 (1989-07-01), Nishimura et al.
patent: 4888735 (1989-12-01), Lee et al.
patent: 4920065 (1990-04-01), Chin et al.
patent: 4920515 (1990-04-01), Obata
patent: 4949138 (1990-08-01), Nishimura
patent: 4958318 (1990-09-01), Harari
patent: 4965651 (1990-10-01), Wagner
patent: 4987089 (1991-01-01), Roberts
patent: 5001526 (1991-03-01), Gotou
patent: 5006909 (1991-04-01), Kosa
patent: 5010386 (1991-04-01), Groover, III
patent: 5017504 (1991-05-01), Nishimura et al.
patent: 5021355 (1991-06-01), Dhong et al.
patent: 5028977 (1991-07-01), Kenneth et al.
patent: 5057896 (1991-10-01), Gotou
patent: 5072269 (1991-12-01), Hieda
patent: 5083047 (1992-01-01), Horie et al.
patent: 5087581 (1992-02-01), Rodder
patent: 5102817 (1992-04-01), Chatterjee et al.
patent: 5107459 (1992-04-01), Chu et al.
patent: 5110752 (1992-05-01), Lu
patent: 5156987 (1992-10-01), Sandhu et al.
patent: 5177028 (1993-01-01), Manning
patent: 5177576 (1993-01-01), Kimura et al.
patent: 5202278 (1993-04-01), Mathews et al.
patent: 5208657 (1993-05-01), Chatterjee et al.
patent: 5216266 (1993-06-01), Ozaki
patent: 5221867 (1993-06-01), Mitra et al.
patent: 5223081 (1993-06-01), Doan
patent: 5266514 (1993-11-01), Tuan et al.
patent: 5308782 (1994-05-01), Mazure et al.
patent: 5316962 (1994-05-01), Matsuo et al.
patent: 5320880 (1994-06-01), Sandhu et al.
patent: 5327380 (1994-07-01), Kersh, III et al.
patent: 5376575 (1994-12-01), Kim et al.
patent: 5391911 (1995-02-01), Beyer et al.
patent: 5392245 (1995-02-01), Manning
patent: 5393704 (1995-02-01), Huang et al.
patent: 5396093 (1995-03-01), Lu
patent: 5410169 (1995-04-01), Yamamoto et al.
patent: 5414287 (1995-05-01), Hong
patent: 5416350 (1995-05-01), Watanabe
patent: 5416736 (1995-05-01), Kosa et al.
patent: 5422296 (1995-06-01), Lage
patent: 5422499 (1995-06-01), Manning
patent: 5427972 (1995-06-01), Shimizu et al.
patent: 5432739 (1995-07-01), Pein
patent: 5438009 (1995-08-01), Yang et al.
patent: 5440158 (1995-08-01), Sung-Mu
patent: 5445986 (1995-08-01), Hirota
patent: 5460316 (1995-10-01), Hefele
patent: 5460988 (1995-10-01), Hong
patent: 5466625 (1995-11-01), Hsieh et al.
patent: 5483094 (1996-01-01), Sharma et al.
patent: 5483487 (1996-01-01), Sung-Mu
patent: 5492853 (1996-02-01), Jeng et al.
patent: 5495441 (1996-02-01), Hong
patent: 5497017 (1996-03-01), Gonzales
patent: 5504357 (1996-04-01), Kim et al.
patent: 5508219 (1996-04-01), Bronner et al.
patent: 5508542 (1996-04-01), Geiss et al.
patent: 5519236 (1996-05-01), Ozaki
patent: 5528062 (1996-06-01), Hsieh et al.
patent: 5563083 (1996-10-01), Pein
patent: 5574299 (1996-11-01), Kim
patent: 5576238 (1996-11-01), Fu
patent: 5581101 (1996-12-01), Ning et al.
patent: 5593912 (1997-01-01), Rajeevakumar
patent: 5616934 (1997-04-01), Dennison et al.
patent: 5627097 (1997-05-01), Venkatesan et al.
patent: 5637898 (1997-06-01), Baliga
patent: 5640342 (1997-06-01), Gonzalez
patent: 5644540 (1997-07-01), Manning
patent: 5646900 (1997-07-01), Tsukude et al.
patent: 5674769 (1997-10-01), Alsmeier et al.
patent: 5691230 (1997-11-01), Forbes
patent: 5705415 (1998-01-01), Orlowski et al.
patent: 5753947 (1998-05-01), Gonzalez
patent: 5818084 (1998-10-01), Williams et al.
patent: 5821578 (1998-10-01), Shimoji
patent: 5827765 (1998-10-01), Stengl et al.
patent: 5864158 (1999-01-01), Liu et al.
patent: 5907170 (1997-10-01), Forber et al.
patent: 5909400 (1999-06-01), Bertin et al.
patent: 5909618 (1999-06-01), Forbes et al.
patent: 5914511 (1999-06-01), Noble et al.
patent: 5917342 (1999-06-01), Okamura
patent: 5920088 (1999-07-01), Augusto
patent: 5926412 (1999-07-01), Evans, Jr. et al.
patent: 5936274 (1999-08-01), Forbes et al.
patent: 5946472 (1999-08-01), Graves et al.
patent: 5963469 (1999-10-01), Forbes
patent: 5973352 (1999-10-01), Noble
patent: 5973356 (1999-10-01), Noble et al.
patent: 6006166 (1999-12-01), Meyer
Oowaki, Y., et al., "New alpha-Particle Induced Soft Error Mechanism in a Three Dimensional Capacitor Cell", IEICE Transactions on Electronics, 78-C, 845-851, (Jul. 1995).
Oshida, S., et al., "Minority Carrier Collection in 256 M-bit DRAM Cell on Incidence of Alpha-Particle Analyzed by Three-Dimensional Device Simulation", IEICE Transactions on Electronics, 76-C, 1604-1610, (Nov. 1993).
Ozaki, T., et al., "A Surrounding Isolation-Merged Plate Electrode (SIMPLE) Cell with Checkered Layout for 256Mbit DRAMs and Beyond", 1991 IEEE International Electron Devices Meeting, Washington, D.C., 469-472, (Dec. 8-11, 1991).
Parke, S.A., et al., "A High-Performance Lateral Bipolar Transistor Fabricated on SIMOX", IEEE Electron Device Letters, 14, 33-35, (Jan. 1993).
Pein, H., et al., "A 3-D Sidewall Flash EPROM Cell and Memory Array", IEEE Transactions on Electron Devices, 40, 2126-2127, (Nov. 1993).
Pein, H., et al., "Performance of the 3-D Pencil Flash EPROM Cell and Memory Array", IEEE Transactions on Electron Devices, 42, 1982-1991, (Nov., 1995).
Pein, H.B., et al., "Performance of the 3-D Sidewall Flash EPROM Cell", IEEE International Electron Devices Meeting, Technical Digest, 11-14, (1993).
Rao, K.V., et al., "Trench Capacitor Design Issues in VLSI DRAM Cells", 1986 IEEE International Electron Devices Meeting, Technical Digest, Los Angeles, CA, 140-143, (Dec. 7-10, 1986).
Richardson, W.F., et al., "A Trench Transistor Cross-Point DRAM Cell", IEEE International Electron Devices Meeting, Washington, D.C., 714-717, (Dec. 1-4, 1985).
Sagara, K., et al., "A 0.72 micro-meter2 Recessed STC (RSTC) Technology for 256Mbit DRMAs using Quarter-Micron Phase-Shift Lithography", 1992 Symposium on VLSI Technology, Digest of Technical Papers, Seattle, WA, 10-11, (Jun. 2-4, 1992).
Saito, M., et al., "Technique for Controlling Effective Vth in Multi-Gbit DRAM Sense Amplifier", 1996 Symposium on VLSI Circuits, Digest of Technical Papers, Honolulu, HI, 106-107, (Jun. 13-15, 1996).
Shah, A.H., et al., "A 4-Mbit DRAM with Trench-Transistor Cell", IEEE Journal of Solid-State Circuits, SC-21, 618-625, (Oct. 1986).
Shah, A.H., et al., "A 4Mb DRAM with Cross-Point Trench Transistor Cell", 1986 IEEE International Solid-State Circuits Conference, Digest of Technical Papers, 268-269, (Feb. 21, 1986).
Sherony, M.J., et al., "Reduction of Threshold Voltage Sensitivity in SOI MOSFET's", IEEE Electron Device Letters, 16, 100-102, (Mar. 1995).
Shimomura, K., et al., "A 1V 46ns 16Mb SOI-DRAM with Body Control Technique", 1997 IEEE International Solid-State Circuits Conference, Digest of Technical Papers, 68-69, (Feb. 6, 1997).
Stellwag, T.B., et al., "A Vertically-Integrated GaAs Bipolar DRAM Cell", IEEE Transactions on Electron Devices, 38, 2704-2705, (Dec. 1991).
Suma, K., et al., "An SOI-DRAM with Wide Operating Voltage Range by CMOS/SIMOX Technology", IEEE Journal of Solid-State Circuits, 29, 1323-1329, (Nov. 1994).
Sun, J., "CMOS Technology for 1.8V and Beyond", Int'l Symp. on VLSI Technology, Systems and Applications: Digest of Technical Papers, 293-297, (1997).
Sunouchi, K., et al., "A Surrounding Gate Transistor (SGT) Cell for 64/256Mbit DRAMs", 1989 IE

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