Entrance-exit atmospheric isolation device
    2.
    发明授权
    Entrance-exit atmospheric isolation device 失效
    进入大气隔离装置

    公开(公告)号:US3645545A

    公开(公告)日:1972-02-29

    申请号:US3645545D

    申请日:1970-07-30

    Applicant: IBM

    CPC classification number: H01L21/67173 C30B31/106 Y10S277/906

    Abstract: An atmospheric isolation device for separation of two atmospheres of a continuous semiconductor processing apparatus which includes a gas entry tube, a plurality of first gas restricting means leading to a first atmosphere, a plurality of second gas restricting means leading to a second atmosphere, and adjacent to each gas restricting means an expansion chamber for increasing back pressure and for destroying lift produced by the Bernouilli effect of the gas passing through the restricting means.

    Abstract translation: 一种用于分离连续半导体处理装置的两个气氛的大气隔离装置,包括气体入口管,通向第一气氛的多个第一气体限制装置,通向第二气氛的多个第二气体限制装置,以及相邻的 每个气体限制装置是用于增加背压并破坏由通过限制装置的气体的伯努利效应产生的升力的膨胀室。

    Vapor deposition apparatus
    3.
    发明授权

    公开(公告)号:US3603284A

    公开(公告)日:1971-09-07

    申请号:US3603284D

    申请日:1970-01-02

    Applicant: IBM

    CPC classification number: C30B25/08 C23C16/4588 C30B25/14

    Abstract: A vapor deposition reactor having a gaseous phase inlet and exit system including inlet means, located at one end of a reaction chamber, including a porous gas distribution baffle which forms a plenum and which uniformly delivers gaseous materials to substantially all of the horizontal cross-sectional area of the reaction chamber and further including an exit means, located at the other end of the chamber, comprising a porous pressure baffle for uniformly allowing the removal of gaseous materials from the chamber to prevent recirculation of reaction byproducts.

    V-MOS DEVICE WITH SELF-ALIGNED MULTIPLE ELECTRODES

    公开(公告)号:CA1159953A

    公开(公告)日:1984-01-03

    申请号:CA377171

    申请日:1981-05-08

    Applicant: IBM

    Abstract: V-MOS Device with Self-Aligned Multiple Electrodes High density VMOSFET devices, particularly single transistor memory cells, are provided by use of series of simplified self-aligning process steps. Gate electrodes, source/drain regions and source/ drain contacts are provided with the aid of an initial mask-less photoresist removal process in which a relatively thick layer of self-leveling photoresist is uniformly removed in order to define portions of a gate electrode within the recess of a V-groove. The gate electrode subsequently acts as a self-aligned mask to define implanted source/ drain regions also within the V-groove and to enable second level interconnecting metallurgy contacts to be formed along the sidewalls of the V-groove. BU-978013

    TWO SQUARE MEMORY CELLS
    5.
    发明专利

    公开(公告)号:CA1283480C

    公开(公告)日:1991-04-23

    申请号:CA541434

    申请日:1987-07-07

    Applicant: IBM

    Abstract: Two Square Memory Cells A memory is provided which includes a semiconductor substrate having a major surface and a trench disposed therein having a longitudinal axis, storage means disposed on a given sidewall of the trench, switching means having a control element and a current carrying element disposed on the given sidewall of the trench between the storage means and the major surface of the substrate and coupled to the storage means, a first electrically conductive line disposed on the given sidewall in contact with the control element of the switching means and having a longitudinal axis arranged parallel to the longitudinal axis of the trench, and a second electrically conductive line disposed on the major surface of the semiconductor substrate in contact with the current carrying electrode of the switching means and having a longitudinal axis arranged orthogonal to the longitudinal axis of the trench.

    METHOD FOR PROVIDING SELF-ALIGNED CONDUCTOR IN A V-GROOVE DEVICE

    公开(公告)号:CA1166761A

    公开(公告)日:1984-05-01

    申请号:CA362828

    申请日:1980-10-20

    Applicant: IBM

    Abstract: METHOD FOR PROVIDING SELF-ALIGNED: CONDUCTOR IN A V GROOVE DEVICE A method for providing self-aligned conductors in vertically integrated semiconductor devices which includes providing recesses in the surface of a semiconductor substrate for the fabrication of Vgroove devices, providing a conductive layer over the surface and then applying a layer of masking material over the conductive layer to form a planar upper surface, selectively etching the masking material until it remains only in the recesses and then selectively etching the exposed portion of the conductive layer. BU-9-78-012

    INTEGRATED CIRCUIT FABRICATION PROCESS

    公开(公告)号:CA997482A

    公开(公告)日:1976-09-21

    申请号:CA187388

    申请日:1973-12-05

    Applicant: IBM

    Abstract: Integrated circuits of high density are fabricated in a simplified process which allows both the use of multiple conducting layers in a dielectric above a semiconductor substrate, such as a polycrystalline silicon (polysilicon) field shield and metal interconnection lines, while also making provision for very precise alignment of subsequent layers to diffusions. A doped oxide containing a suitable dopant, such as arsenic in the case of a p-type silicon substrate, is deposited on the substrate. A pattern corresponding to desired diffusions is generated by normal photolithographic and etching techniques. A second, undoped oxide layer is thermally grown over the semiconductor substrate with dopant from the doped oxide simultaneously diffusing into areas of the substrate underlying the doped oxide. The undoped oxide serves to prevent autodoping. Thermally growing the undoped oxide layer converts a layer of the semiconductor surface not covered by doped oxide to the undoped oxide. Both oxide layers are then removed, leaving slight steps at the surface of the semiconductor substrate around the diffusion. The slight steps serve to allow very precise alignment of masks for subsequent process steps. Otherwise, the structure produced is very planar. An insulating layer, desirably a composite of silicon dioxide and silicon nitride in the case of a silicon substrate, is then formed on the substrate, followed by a layer of polycrystalline semiconductor, desirably doped to provide high conductivity. Openings are then etched in the polycrystalline semiconductor layer to allow formation of gate electrodes of FET's, contact to the substrate, and contact of a subsequent interconnection metallization to diffusions in some of the circuits. A second insulating layer, such as silicon dioxide, is then grown on the polycrystalline semiconductor layer. Contact holes are then made to diffusions in the substrate, the substrate itself, and the polycrystalline silicon. The deposition and etching of an interconnection layer on the second insulating layer completes fabrication of the integrated circuit.

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