Title:
CHIP RESISTOR
Document Type and Number:
WIPO Patent Application WO/2016/067726
Kind Code:
A1
Abstract:
In order to provide an exceptionally corrosion-resistant chip resistor with which it is possible to reliably protect a resistive element from the external environment, a chip resistor 1 is configured to be provided with an insulation substrate 2, a pair of front-surface electrodes 3 provided at both front-surface ends of the insulation substrate 2, a pair of reverse-side electrodes 7 provided at both reverse-side ends of the insulation substrate 2, a resistive element 4 provided so as to extend over the two surface electrodes 3, a first insulation layer 5 for covering the resistive element 4, a second insulation layer 6 comprising a plastic material for covering the first insulating layer 5, end-face electrodes 8 for establishing electrical continuity between the surface electrodes 3 and the reverse-side electrodes 7, plated layers 9 covering the end-face electrodes 8, etc. On both ends of the second insulating layer 6 are formed rough-surface portions 6a that have a surface roughness exceeding that of other portions. The ends of each of the end-face electrodes 8 and plated layers 9 are tightly fixed to the rough-surface portion 6a.
Inventors:
MATSUMOTO KENTARO (JP)
Application Number:
PCT/JP2015/073882
Publication Date:
May 06, 2016
Filing Date:
August 25, 2015
Export Citation:
Assignee:
KOA CORP (JP)
International Classes:
H01C7/00; H01C1/032; H01C17/242
Foreign References:
| JP2013219387A | 2013-10-24 | |||
| JP2001148302A | 2001-05-29 | |||
| JP2009158721A | 2009-07-16 | |||
| JP2009043883A | 2009-02-26 |
Attorney, Agent or Firm:
The Patent Body Corporate TAKEWA INTERNATIONAL PATENT OFFICE (JP)
Patent business corporation Takekazu international patent firm (JP)
Patent business corporation Takekazu international patent firm (JP)
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