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Patent Searching and Data


Title:
PRINTED WIRING BOARD AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JPH0575229
Kind Code:
A
Abstract:

PURPOSE: To provide a printed wiring board intermediate body which can improve accuracy of a resistance value of a thin film resistance and can form both a thin film resistance and a thin film capacitor by the same pattern and also to provide a printed wiring board manufactured by using the intermediate body and a manufacture method thereof.

CONSTITUTION: Both a thin film resistance and a thin film capacitor can be formed of a wiring pattern used when a wiring 12 is formed by etching a conductor layer of a printed wiring board intermediate body having the same pattern. In the case of a thin film capacitor, a dielectric layer 2 is used as a dielectric of a capacitor and a capacitor is constituted between the wiring 12 of a region corresponding to the dielectric layer 2 and a resistance layer 3 of the region. In the case of a thin film resistance, a resistance layer of a region corresponding to the dielectric layer 2 is used as a resistor and a thin film resistance is constituted between wirings formed at both ends of the resistor.


Inventors:
OFUSA TOSHIO
Application Number:
JP23753691A
Publication Date:
March 26, 1993
Filing Date:
September 18, 1991
Export Citation:
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Assignee:
TOPPAN PRINTING CO LTD
International Classes:
H01C7/00; H01C17/12; H01G4/06; H01G4/33; H01G4/40; H05K1/16; (IPC1-7): H01C7/00; H01C17/12; H01G4/06; H01G4/40; H05K1/16
Attorney, Agent or Firm:
Seiichi Samukawa