DUAL PORT GAIN CELL WITH SIDE AND TOP GATED READ TRANSISTOR
    14.
    发明申请
    DUAL PORT GAIN CELL WITH SIDE AND TOP GATED READ TRANSISTOR 审中-公开
    双端口增益单元与侧面和顶部读取晶体管

    公开(公告)号:WO2007023011B1

    公开(公告)日:2007-07-12

    申请号:PCT/EP2006063581

    申请日:2006-06-27

    CPC classification number: H01L27/108 H01L27/10829 H01L27/10867 H01L27/1203

    Abstract: A DRAM memory cell and process sequence for fabricating a dense (20 or 18 square) layout is fabricated with silicon-on-insulator (SOI) CMOS technology. Specifically, the present invention provides a dense, high-performance SRAM cell replacement that is compatible with existing SOI CMOS technologies. Various gain cell layouts are known in the art. The present invention improves on the state of the art by providing a dense layout that is fabricated with SOI CMOS. In general terms, the memory cell includes a first transistor provided with a gate, a source, and a drain respectively; a second transistor having a first gate, a second gate, a source, and a drain respectively; and a capacitor having a first terminal, wherein the first terminal of said capacitor and the second gate of said second transistor comprise a single entity.

    Abstract translation: 使用绝缘体上硅(SOI)CMOS技术制造用于制造致密(20或18平方)布局的DRAM存储单元和工艺顺序。 具体地,本发明提供了与现有SOI CMOS技术兼容的致密的高性能SRAM单元替换。 各种增益单元布局在本领域中是已知的。 本发明通过提供利用SOI CMOS制造的致密布局来改善现有技术的状态。 通常,存储单元包括分别设置有栅极,源极和漏极的第一晶体管; 分别具有第一栅极,第二栅极,源极和漏极的第二晶体管; 以及具有第一端子的电容器,其中所述电容器的第一端子和所述第二晶体管的第二栅极包括单个实体。

    METHOD FOR CONTROLLING DIFFUSION OF STRAP EMBEDDED IN TRENCH CAPACITOR

    公开(公告)号:JPH11330402A

    公开(公告)日:1999-11-30

    申请号:JP9246899

    申请日:1999-03-31

    Applicant: SIEMENS AG IBM

    Abstract: PROBLEM TO BE SOLVED: To reduce the diffusion of the height of an embedded strap by making the depression extending below the surface of the substrate in a filling material, to determine the top surface of a buried strap and by making a recess extending below the top surface of the embedded strap in a collar to determine the bottom side surface. SOLUTION: A substrate includes a partially completed trench capacitor. A collar 110 is made on the upper portion of the trench capacitor. A trench 108 is filled with a filling material 112 and the inner sidewall of the collar is lined with the filling material 112. A recess having a predetermined depth is made in the filling material 112. The depth of the recess actually determines the top portion of an embedded strap. A hole is made in the collar to the depth of 120 below the top surface 118 of the filling material 112. A layer 122 is removed from the side of the trench 108 and the top surface of a semiconductor device 100, while a recessed region 124 filled with the material of the layer 122 is left.

    METHOD OF FORMING EMBEDDED SELF-ALIGNED STRAP IN DEEP STORAGE TRENCH, AND SEMICONDUCTOR DEVICE

    公开(公告)号:JP2000216354A

    公开(公告)日:2000-08-04

    申请号:JP2000005490

    申请日:2000-01-14

    Applicant: IBM SIEMENS AG

    Abstract: PROBLEM TO BE SOLVED: To provide a method for forming an embedded self-aligned strap in a deep storage trench. SOLUTION: A spacer 42/52 is formed on the wall face of a recess on an already filled deep trench capacitor 30. A plug 46/54 is formed within the region between spacers. A photoresist is stuck onto the spacer 42/54 and the plug 46/54 and a peripheral material 40, and a part of the plug 46/54, the spacer 42/52, and the material 40 is exposed. The spacer part not covered with the photoresist is selectively etched. A board and a trench part exposed by the removal of the spacer are selectively etched. An isolation region 58 is formed within the space made etching.

    SEMICONDUCTOR DEVICE, AND FORMING OF LAYER UNIFORM IN FLATNESS AND THICKNESS

    公开(公告)号:JPH11176930A

    公开(公告)日:1999-07-02

    申请号:JP26992298

    申请日:1998-09-24

    Applicant: SIEMENS AG IBM

    Abstract: PROBLEM TO BE SOLVED: To provide a method for forming a layer which is uniform in flatness and thickness on a semiconductor chip or on a semiconductor device provided with a trench. SOLUTION: An oxide thermal pad layer 104 is formed on a semiconductor substrate 102 through a thermal oxidation method, a nitride insulating layer 106, a buffer layer 108 of oxide or preferably TEOS(tetraethyl oxosilane), and a SiN mask layer 110 are formed thereon through a CVD(chemical vapor deposition) method, and a hard mask layer 112 containing BSG(borosilicate glass) or TEOS is formed on the mask layer 110. Then, a semiconductor device is manufactured, a trench is provided to the device, filler is filled, a polishing is carried out up to a pad stop, and an etching operation is carried out using the buffer layer as an etching stopper for removing the pad stop and the buffer layer, whereby a surface layer which is nearly flat and uniform in thickness can be obtained.

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