ELECTRON SOURCE AND DISPLAY DEVICE

    公开(公告)号:JP2000040477A

    公开(公告)日:2000-02-08

    申请号:JP19719599

    申请日:1999-07-12

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To provide such an electron source that an extracted current density coincides with an emission characteristic of a cathode and there is no interaction between a pixel/array structural part and an extracting grid. SOLUTION: A frame 202 is provided around an extracting grid 200. The extracting grid 200 comprises plural apertures 204, 207. The apertures 204 are etched and have a square shape. The smaller number of apertures 207 have a U-shape. Portions which are not removed from the extracting grid 200 form flap 206 areas. The flaps are mechanically bent at a right angle, to form the extracting grid 200 into a three-dimensional structure from a two-dimensional structure. The flaps 200 are used for precisely separating the extracting grid 200 from a cathode substrate 102. Thereby, the distance between the electron source and the extracting grid 200 can be kept constant.

    METAL/FERRITE LAMINATED MAGNET
    6.
    发明专利

    公开(公告)号:JPH1187116A

    公开(公告)日:1999-03-30

    申请号:JP12380198

    申请日:1998-05-06

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To provide a metal/ferrite laminated magnet having openings which are accurately aligned with a phosphor under all operating conditions by substantially aligning the openings of a first and second ferrite sheet with those of a second metallic plate. SOLUTION: A metallic plate 105 is cut to measure and openings 125 are formed through the plate 105 by etching. Then a first green ferrite sheet 115 is fitted to one surface of the etched metallic plate 105 and openings 125 are formed through the sheet 115 by punching by using the etched holes of the metallic plate 105 as guides. Openings 125 are also formed through a second metallic plate 110 and a second green ferrite sheet 120 in the same ways. Then a sandwich-like magnet 100 is formed by bringing the surfaces of the first and second green ferrite sheets 115 and 120 into contact with each other, coupling the sheets 115 and 120 with each other so that the opening of the sheets 115 and 120 may be aligned with each other, and sintering the laminated body. A vertically arranged magnetic field is given to the magnet 100.

    FLUX RESIDUE WASHING-OFF PROCESS
    7.
    发明专利

    公开(公告)号:JPH1116878A

    公开(公告)日:1999-01-22

    申请号:JP15962198

    申请日:1998-06-08

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To effectively remove flux residue of rosin base formed during high temperature solder reflow by using at least one non-halogenation/non-aromatic solvent as solvent when washing residue off at least one surface of a semiconductor device. SOLUTION: In a solvent washing process for washing residue off at least one surface of a semiconductor device, at least one non-halogenation/non- aromatic solvent is used as solvent. A solvent having at least two functional groups comprising that expressed by -OH and -COOR, -OR and -COOR, -OH and -OR, -OR and -OCOR [R is expressed by CnH2n+1 (n=1 to 4)] is suitable. Embodiments of the washing solvent are lactic ester, alkoxyalkyl ester, propylene glycol ether alkoxylate and that selected from a combination thereof.

    DEPOSITION OF NICKEL OR NICKEL ALLOY BY CVD USING IODIDE

    公开(公告)号:JPH1068075A

    公开(公告)日:1998-03-10

    申请号:JP16163997

    申请日:1997-06-18

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To deposit Ni or an Ni alloy on the surface of a metal hard to be worked by interposing an iodine material. SOLUTION: A metal 32 hard to be worked which is the exposed end part where Mo or the like is exposed on a ceramic base 30, depositing metallic materials 40 and 45 such as Ni or Ni alloy and solid iodine, preferably. CuI salt are charged into a box, is heated to about 700 to 1000 deg.C and is held for about 1 to 200min. The CuI 23 is brought into reaction with solid Ni or Ni alloy 40 and 45 in a vapor phase state to generate gaseous Ni iodine, which is brought into reaction with the exposed surface of the metal 32. Then, Ni molecules are reduced, and substantially pure Ni is deposited thereon. The iodine is made free from the metal 32, returned to the materials 40 and 45 and again brought into reaction with Ni, and the process is repeated. In this way, the iodine is used as a simple carrier for Ni and is not consumed in the process.

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