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    • 3. 发明专利
    • PATTERN DRAWING DEVICE
    • JPH04192391A
    • 1992-07-10
    • JP31805490
    • 1990-11-26
    • HITACHI LTD
    • TAJIRI YOJIKIYONO TASAKUATO KAZUHIKOHIDA HIROYUKI
    • B43L13/00H01C17/06H05K3/10
    • PURPOSE:To offer a pattern drawing device capable of coating uniformly a paste regardless of the warpage and roughness of a substrate by a method wherein a sensor is arranged so as to turn always to the direction of a nozzle. CONSTITUTION:A Z table 15 movable to the vertical direction by a Z motor 14 is arranged over an XY table 11 and a sensor table 17 is mounted to the table 15 in such a way that it is rotatable on the horizontal plane by a sensor motor 18. A nozzle 16 for discharging a paste P on a substrate 13 on the table 11 is fixed on the lower part of the table 17 and at the same time, a sensor 19 is fixed in close proximity to a discharge orifice of the nozzle 16 so that the distance ALPHAZ between the discharge orifice of the nozzle 16 and the substrate 13 can be detected. As the nozzle 16 and the sensor 19 are both rotatable on the horizontal plane, a detection signal of the sensor becomes accurate regardless of the warpage and roughness of the substrate and the paste can be uniformly applied.
    • 4. 发明专利
    • THICK FILM THERMAL RECORDING HEAD
    • JPH03266653A
    • 1991-11-27
    • JP6633690
    • 1990-03-16
    • HITACHI LTD
    • SATOU KAZUYASUWATANABE MICHIHIROMATSUMOTO SHOGOHIDA HIROYUKI
    • B41J2/345
    • PURPOSE:To form a simple structure with no through hole by a method wherein a heating element is connected to an intermediate pad with a first lead wire, the heating element is connected to a common electrode with a second lead wire adjacent to the first lead wire, and the intermediate pad is connected to an IC side pad with a wire passing above the common electrode while being spaced. CONSTITUTION:A glazed layer composed of glass is formed on all or a part of a substrate 1 consisting of ceramics or metals, and a common electrode 4 to which a bus electric potential is applied as a relaying point of a power source drawn out from a heating element 3 is connected further thereonto. A lead wire 2a being a second lead wire and a lead wire 2b consisting of a first lead wire for being connected to a driving IC 5 to be drawn out from the heating element are formed. The heating element 3 is formed near one end surface of the substrate 1, and the lead wires 2a, 2b are formed toward the other end surface of the substrate 1. A pad 2c is provided to a tip of the lead wire 2b drawn out from the heating element 3, and the pad 2c is wire- bonded to a pad 6 formed on another substrate 8 on which the driving IC 5 is mounted with a bonding wire 7.
    • 10. 发明专利
    • CIRCUIT BOARD
    • JPH09283662A
    • 1997-10-31
    • JP9221596
    • 1996-04-15
    • HITACHI LTD
    • HIDA HIROYUKIKAWAMATA TETSUJI
    • H01L23/29H01L21/56H01L23/31
    • PROBLEM TO BE SOLVED: To prevent a short circuit between a through-hole and a semiconductor element and prevent outflow of a sealing resin from the through-hole, by adhering and fixing an insulating plate having an area large enough to cover the through-hole or an insulating plate having a conductive film on a surface to be in contact with the semiconductor element, between a wiring board and the semiconductor element. SOLUTION: An insulating plate 6 having an area large enough to cover a through-hole 7 existing near a surface in contact with a semiconductor element 1 is adhered and fixed using an insulating adhesive 5. Then, the semiconductor element 1 is adhered and fixed onto the insulating plate 6 using the insulating adhesive 5. The semiconductor element 1 is connected to an electrode portion 3 via a bonding wire 2. In addition, a sealing resin 8 is applied, hardened and fixed in order to protect the semiconductor element 1 and the bonding wire 2. Thus, even though the sealing resin 8 has fluidity and therefore will flow into the through-hole 7 in a wiring board 4, the insulating plate 6 prevents the inflow of the resin sealing. Therefore, neither inflow into the through-hole 7 nor outflow to the back side of the wiring board 4 occurs.