Electronic circuit substrate
    4.
    发明授权
    Electronic circuit substrate 失效
    电子电路基板

    公开(公告)号:US5144536A

    公开(公告)日:1992-09-01

    申请号:US556521

    申请日:1990-07-24

    Abstract: An electronic circuit substrate excellent in reliability, which comprises a porous ceramic sintered body with film devices such as a conductive circuit, a resistor and a capacitor directly formed on a surface thereof. A resin is filled in the pores of the porous ceramic sintered body, and the bottom surface of the film devices are fit into the pores and recesses on the surface of the porous ceramic sintered body in close contact therewith in a wedged state. A method of producing the aforesaid electronic circuit substrate comprises the steps of forming film devices directly on a surface of a porous ceramic sintered body. Then, filling the pores of the porous ceramic sintered body with a resin so as to fit the under surface of the film devices into the pores and recesses on the surface of the porous ceramic sintered body in close contact therewith in a wedge state.

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