METHOD AND DEVICE FOR DEGASSING DEMINERALIZED WATER FOR ULTRASONICALLY CLEANING SEMICONDUCTOR WAFER

    公开(公告)号:JP2001015474A

    公开(公告)日:2001-01-19

    申请号:JP2000153650

    申请日:2000-05-24

    Abstract: PROBLEM TO BE SOLVED: To avoid the inefficient excessive saturation of heated demineralized water with gas by adjusting the gas concentration in the demineralized water before the water is heated to a selective cleaning temperature for cleaning a semiconductor wafer under ultrasonic vibrating actions. SOLUTION: The gas space in a degassing chamber 11 is maintained at a selective negative pressure by operating a vacuum pump 16 in connection with a pressure sensor 18. Then the pressure in the chamber 11 is adjusted by releasing a selective amount of nitrogen gas from the water in the water space of the chamber 11 to the gas space of the chamber 11 through a chamber thin film, and removing the gas by sucking and exhaling the gas through a gas discharge pipe 17. In addition, the demineralized water in a heating vessel 12 is selectively warmed by means of a controller 21 and supplied to a cleaning tank 13 for ultrasonically cleaning a semiconductor wafer.

    METHOD FOR FORMING PAIR OF MOSFETS IN DIFFERENT ELECTRICALLY INSULATING REGION OF SILICON SUBSTRATE

    公开(公告)号:JP2000068387A

    公开(公告)日:2000-03-03

    申请号:JP22160699

    申请日:1999-08-04

    Applicant: SIEMENS AG IBM

    Abstract: PROBLEM TO BE SOLVED: To provide a method for forming the pair of MOSFETs in different insulation regions of a silicon substrate. SOLUTION: The first layer of a silicon dioxide is grown on the surface of a silicon substrate, an inorganic layer is formed on a silicon dioxide layer and a photoresist layer is formed on the inorganic layer. The photoresist layer is patterned, the inorganic layer is patterned into an inorganic mask, and the photoresist layer is removed. The exposed part of the grown silicon dioxide is selectively removed by using the inorganic mask, and the inorganic mask is removed. Then the second layer of the silicon dioxide is grown on the exposed part existing below the silicon substrate, and the silicon dioxide layer is patterned into a gate oxide.

    PROCESS FLOW FOR CAPACITANCE ENHANCEMENT IN A DRAM TRENCH
    37.
    发明申请
    PROCESS FLOW FOR CAPACITANCE ENHANCEMENT IN A DRAM TRENCH 审中-公开
    DRAM TRENCH中电容增强的工艺流程

    公开(公告)号:WO0245131A3

    公开(公告)日:2003-05-15

    申请号:PCT/US0144626

    申请日:2001-11-28

    CPC classification number: H01L27/1087 H01L28/84 Y10S438/964

    Abstract: Methods forming a trench region of a trench capacitor structure having increase surface area are provided. One method includes the steps of forming a discontinuous polysilicon layer (43) on exposed walls of a lower trench region, the discontinuous polysilicon layer having gaps (44) therein which expose portions of said substrate; oxidizing the lower trench region such that the exposed portions of said substrate provided by the gaps in the discontinuous polysilicon layer are oxidized into oxide material which forms a smooth and wavy layer with the discontinuous polysilicon layer; and etching said oxide material so as to form smooth hemispherical grooves (46) on the walls of the trench region.

    Abstract translation: 提供了形成具有增加的表面积的沟槽电容器结构的沟槽区域的方法。 一种方法包括以下步骤:在下沟槽区域的暴露壁上形成不连续的多晶硅层(43),所述不连续的多晶硅层在其中具有暴露所述衬底部分的间隙(44) 氧化下沟槽区域,使得由不连续多晶硅层中的间隙提供的所述衬底的暴露部分被氧化成与不连续多晶硅层形成平滑波浪层的氧化物材料; 并蚀刻所述氧化物材料,以在沟槽区域的壁上形成平滑的半球状凹槽(46)。

    NEGATIVE ION IMPLANT MASK FORMATION FOR SELF-ALIGNED, SUBLITHOGRAPHIC RESOLUTION PATTERNING FOR SINGLE-SIDED VERTICLE DEVICE FORMATION
    38.
    发明申请
    NEGATIVE ION IMPLANT MASK FORMATION FOR SELF-ALIGNED, SUBLITHOGRAPHIC RESOLUTION PATTERNING FOR SINGLE-SIDED VERTICLE DEVICE FORMATION 审中-公开
    用于自对准的负离子植入物掩模形成,用于单面垂直装置形成的分层解析图案

    公开(公告)号:WO0247157A3

    公开(公告)日:2003-01-30

    申请号:PCT/US0144920

    申请日:2001-11-29

    CPC classification number: H01L27/10867

    Abstract: A process for fabricating a single-sided semiconductor deep trench structure filled with polysilicon trench fill material includes the following steps. Form a thin film, silicon nitride, barrier layer over the trench fill material. Deposit a thin film of an amorphous silicon masking layer over the barrier layer. Perform an angled implant into portions of the amorphous silicon masking layer which are not in the shadow of the deep trench. Strip the undoped portions of the amorphous silicon masking layer from the deep trench. Then strip the newly exposed portions of barrier layer exposing a part of the trench fill polysilicon surface and leaving the doped, remainder of the amorphous silicon masking layer exposed. Counterdope the exposed part of the trench fill material. Oxidize exposed portions of the polysilicon trench fill material, and then strip the remainder of the masking layer.

    Abstract translation: 用于制造填充有多晶硅沟槽填充材料的单面半导体深沟槽结构的工艺包括以下步骤。 在沟槽填充材料上形成薄膜,氮化硅,阻挡层。 在阻挡层上沉积非晶硅掩模层的薄膜。 对非深度沟槽阴影的非晶硅掩模层的部分进行成角度的注入。 从深沟槽剥离非晶硅掩模层的未掺杂部分。 然后剥离暴露部分沟槽填充多晶硅表面的势垒层的新暴露部分,并且使非晶硅掩模层的掺杂剩余部分露出。 反映出暴露部分的沟槽填充材料。 氧化多晶硅沟槽填充材料的暴露部分,然后剥离掩模层的其余部分。

    DISPOSABLE SPACER TECHNOLOGY FOR DEVICE TAILORING
    40.
    发明申请
    DISPOSABLE SPACER TECHNOLOGY FOR DEVICE TAILORING 审中-公开
    一次性器件定制一次性间隔技术

    公开(公告)号:WO0217389A3

    公开(公告)日:2002-05-02

    申请号:PCT/US0124193

    申请日:2001-08-01

    CPC classification number: H01L29/6653 H01L21/823468 H01L29/6659

    Abstract: The present provides a method for tailoring silicon dioxide source and drain implants and, if desired, extension implants of different devices used on a semiconductor wafer in order to realize shallow junctions and minimize the region of overlap between the gate and source and drain regions and any extension implants. The method includes the steps of applying a mask over a first gate structure positioned on a semiconductor substrate, depositing a layer of a spacer material over the surface of the first gate structure and a second gate structure adjacent to the first gate structure, etching the spacer material so that a portion of the spacer material remains on the second gate sidewalls and a sidewall of the block out mask, implanting ions into the semiconductor substrate into a region defined between the spacer material on the block out mask and the second gate to form a source or drain region, and removing the spacer material and block out mask. If desired, a second etch can be performed on the spacer material to reduce spacer thickness, and second ions can be implanted into the semiconductor substrate into an implant region defined between the spacer material remaining after the second etch.

    Abstract translation: 本发明提供了一种用于调整二氧化硅源极和漏极注入以及如果需要的话用于在半导体晶片上使用的不同器件的扩展注入以实现浅结并使栅极与源极和漏极区域之间的重叠区域最小化以及任何 扩展植入物。 该方法包括以下步骤:在位于半导体衬底上的第一栅极结构上施加掩模;在第一栅极结构的表面上沉积隔离材料层;以及与第一栅极结构相邻的第二栅极结构;蚀刻隔离物 材料,使得间隔件材料的一部分保留在第二栅极侧壁和阻挡外掩模的侧壁上,将离子注入到半导体衬底中,进入阻挡阻挡掩模上的间隔件材料和第二栅极之间限定的区域中,以形成 源极或漏极区域,并去除间隔材料并遮挡掩模。 如果需要,可以在间隔物材料上执行第二次蚀刻以减小间隔物厚度,并且可以将第二离子注入到半导体衬底中,进入在第二次蚀刻之后剩余的间隔物材料之间限定的注入区域中。

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