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Patent Searching and Data


Title:
TRIMMING CAPACITOR
Document Type and Number:
Japanese Patent JPH07183163
Kind Code:
A
Abstract:

PURPOSE: To provide a trimming capacitor in which trimming electrodes and an internal electrode are formed on one surface side and has such a structure that can prevent the occurrence of warps at the time of sintering.

CONSTITUTION: A trimming capacitor is provided with trimming electrodes 3 formed on the surface of a dielectric 1 and an internal electrode 2 formed in the shape of a layer in the dielectric 1 near the surface of the dielectric 1. The capacitor is also provided built-in dummy electrodes 5 for preventing the occurrence of warps at the time of sintering. The electrodes 5 are provided at a depth from 0.05mm to 40% of the thickness of a chip from the surface of the dielectric 1 opposite to the surface of the dielectric 1 on which the electrode 3 is formed. Since the capacitor is provided with the built-in dummy electrodes 5, the electrodes 5 do not touch a conductor pattern on a substrate when the capacitor is mounted on the substrate. When multiple dummy electrodes 5 are provided in the direction of lamination and layers of the dielectric 1 are put between each dummy electrode 5, the occurrence of voids can be prevented in the capacitor.


Inventors:
SASAKI KANEO
YAGI HIROSHI
IKEDA ATSUSHI
Application Number:
JP34642893A
Publication Date:
July 21, 1995
Filing Date:
December 22, 1993
Export Citation:
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Assignee:
TDK CORP
International Classes:
H01G4/12; H01G4/255; (IPC1-7): H01G4/255; H01G4/12
Attorney, Agent or Firm:
Shoichi Wakata