Temperature stable multilayer capacitor

Details Temperature stable multilayer capacitor Temperature stable multilayer capacitor

1988-08-01

1989-10-10

Griffin, Donald A.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

29 2542, H01G 100, C23B 550

Patent

active

048736120

ABSTRACT:
The temperature characteristics of each of the layers in a multilayer ceramic capacitor are adjusted (through chemical doping of the basic dielectric material) to thereby stagger the temperature characteristics (e.g. curie points). As a result, the composite temperature characteristic of the multilayer structure will be much more stable than that of any individual layer. The temperature characteristics of the individual layers will combine in an additive manner thereby achieving the objective of high capacitance and uniform temperature stability for materials which have high dielectric constant but poor temperature stability. Thus, by properly formulating the composition of the layers of a multilayer ceramic chip capacitor, relative temperature stability of capacitance and high volumetric capacitance efficiency will be achieved.

REFERENCES:
patent: 3549415 (1970-12-01), Capek et al.
patent: 3694710 (1972-09-01), Kirschner
patent: 4027209 (1977-05-01), Maher
patent: 4086649 (1978-04-01), Hanold

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