FIELD-EMISSION ELEMENT AND ITS FORMING METHOD AND USE

    公开(公告)号:JPH11260247A

    公开(公告)日:1999-09-24

    申请号:JP301999

    申请日:1999-01-08

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To obtain a field-emission element of various types by which obstacles of prior art such as high leakage current or the like can be overcome. SOLUTION: This field-emission element contains plural tip parts 2 composed in each aperture 5 which are formed by a gate electrode. When a prescribed voltage between the gate and a cathode is applied, electrons are emitted from one or more tip parts 2 into a vacuum. The tip parts 2 are made of single- crystal silicon 1 or polycrystal line silicon, and all of them have nearly same the height and end in the boundary layer between single-crystal silicon 1 or polycrystal line silicon and an insulator 3, respectively. The plural tip parts 2 are formed through plasma etching without special lithographic process. The tip-part forming process can be applied to a substrate of an arbitrary size, so that this field-emission element can be applied to a flat panel display.

    FILM MASK FOR LITHOGRAPHY BY SHORT-WAVELENGTH RADIATION

    公开(公告)号:JPH10275773A

    公开(公告)日:1998-10-13

    申请号:JP5300198

    申请日:1998-03-05

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To provide a film mask for electron beam lithography that has a high mechanical stability and a thin film thickness, cannot be subjected to stress, and allows a submicron structure body to be easily created without any rounding effect using a reactive ion etching method. SOLUTION: In the case of a film mask for forming a surface region using electron beams or particle beams, a silicon nitride layer 1 with a feedthrough opening for demarcating a mask pattern is provided on one surface of a semiconductor wafer 2 that is preferably made of silicon. A recess 3 in bath tub type is extended from the other surface of the semiconductor wafer 2 to a layer adhesion surface.

    3.
    发明专利
    未知

    公开(公告)号:DE59800259D1

    公开(公告)日:2000-10-12

    申请号:DE59800259

    申请日:1998-01-28

    Applicant: IBM

    Abstract: In an electron or particle beam structuring mask, consisting of a semiconductor wafer (2) with an apertured layer (1) on one surface and with a recess (3) extending from the other surface to the layer-bearing surface, the layer (1) is a preferably 0.1-2.0 mu m thick silicon nitride layer. Also claimed is a similar electron beam structuring mask having, between the apertured layer (31) and the wafer (32), a continuous layer (30) consisting of a combination of silicon dioxide (34), silicon nitride (35) and silicon dioxide (36) layers of relative thicknesses such that the combination is under a slight tensile stress preferably of about 10 dynes/cm . Also claimed is a mask production process involving plasma etching of the apertures in the mask-defining layer (1, 31) at -90 to -140 degrees C using a helicon source for plasma generation and an etching gas mixture of SF6 and O2 in a ratio resulting in perpendicular aperture walls.

    Field emission component for array of emissive flat display screen

    公开(公告)号:DE19800555A1

    公开(公告)日:1999-07-15

    申请号:DE19800555

    申请日:1998-01-09

    Applicant: IBM

    Abstract: A field emission component has several electron emission tips (2) arranged in each of several circular gate holes (5) formed through electrodes. An Independent claim is also included for the production of a field emission component by coating a single crystal silicon substrate with an insulating layer (3), applying a gate metal layer (4) and a photoresist layer on the insulating layer, forming a hole pattern in the resist layer by photolithography, transferring and opening the hole pattern into the gate metal layer by etching, producing tips (2) in the substrate in the hole regions by plasma etching and then applying a back face metallization onto the substrate.

    5.
    发明专利
    未知

    公开(公告)号:DE19710799A1

    公开(公告)日:1998-10-01

    申请号:DE19710799

    申请日:1997-03-17

    Applicant: IBM

    Abstract: In an electron or particle beam structuring mask, consisting of a semiconductor wafer (2) with an apertured layer (1) on one surface and with a recess (3) extending from the other surface to the layer-bearing surface, the layer (1) is a preferably 0.1-2.0 mu m thick silicon nitride layer. Also claimed is a similar electron beam structuring mask having, between the apertured layer (31) and the wafer (32), a continuous layer (30) consisting of a combination of silicon dioxide (34), silicon nitride (35) and silicon dioxide (36) layers of relative thicknesses such that the combination is under a slight tensile stress preferably of about 10 dynes/cm . Also claimed is a mask production process involving plasma etching of the apertures in the mask-defining layer (1, 31) at -90 to -140 degrees C using a helicon source for plasma generation and an etching gas mixture of SF6 and O2 in a ratio resulting in perpendicular aperture walls.

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