Capacitor device and method of manufacturing the same

Details Capacitor device and method of manufacturing the same Capacitor device and method of manufacturing the same

2007-06-05

2007-06-05

Thomas, Eric W. (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

C361S303000, C257S532000

Reexamination Certificate

active

11057193

ABSTRACT:
A capacitor device includes a capacitor Q constituted by a lower electrode (12) formed an a substrate (10), a dielectric film (14), and an upper electrode (16); an insulating film (18) covering the capacitor Q; a first contact hole (18a) formed in the insulating film (18) on a connection portion (16a) of the upper electrode (16); an electrode pad (20) for preventing a diffusion of solder, formed in the first contact hole (18a); and a solder bump (22) electrically connected to the electrode pad (20), and the upper electrode (16) has a protrusion portion (16a) protruding from the dielectric film (14), and is connected to the first contact hole (18a) on the protrusion portion (16a).

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