Composite electronic part

Details Composite electronic part Composite electronic part

1991-06-20

1992-10-20

Griffin, Donald

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

338334, H01G 410, H01C 1300

Patent

active

051575825

ABSTRACT:
A surface-mountable composite electronic part comprising a capacitor element which includes a dielectric ceramic member and a film resistor combined therewith for forming an RC circuit. A plurality of external terminals are formed on both end surfaces of the capacitor element for extracting capacitance, while a plurality of wiring patterns are formed on a first major surface of the capacitor element to be connected with the external terminals. The film resistor is formed on the first major surface of the capacitor element on a protective film made of a glass material, and connects a pair of the wiring patterns with each other. When the film resistor is trimmed with a laser beam, the protective film prevents the dielectric ceramic member forming the capacitor element from being harmed by the laser beam.

REFERENCES:
patent: 2566666 (1951-09-01), Khouri et al.
patent: 3996502 (1976-12-01), Bratschun
patent: 4146673 (1979-03-01), Headley
patent: 4528613 (1985-07-01), Stetson et al.
patent: 4650923 (1987-03-01), Nishigaki et al.
patent: 4758922 (1988-07-01), Ishigaki et al.
patent: 4766412 (1988-08-01), Takakura et al.

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