Title:
SWITCH UNIT, AND SWITCH SUBSTRATE MANUFACTURING METHOD
Document Type and Number:
WIPO Patent Application WO/2020/027248
Kind Code:
A1
Abstract:
Provided is a switch unit comprising a substrate with which contact noise and amplification noise, etc. generated during switching can be reduced without losing the operability of switching. A switch unit (11) comprises: a substrate (12) including a hard layer (12a) and a soft layer (12b); a first contact point (13) provided on the top surface of the substrate above the soft layer; second contact points (14) provided on the top surface of the substrate in the periphery of the first contact point; a conductive spring member (15) that is provided so as to be separated from the first contact point from above and so as to contact the second contact points, and that contacts the first contact point by elastic deformation so as to bring the first contact point and the second contact points into conduction; a first external electrode (20a) provided to an end of the substrate; a first through-hole electrode (22a) that is provided to the inside of the substrate and that is electrically connected to the first contact point; and a first wiring pattern (19a) that is provided in the bottom surface of the substrate, and that is electrically connected to the first external electrode and the first through-hole electrode.
Inventors:
ITO KEN (JP)
MIURA MITSUNORI (JP)
WATANABE SHINSUKE (JP)
IKEDA KENSUKE (JP)
MIURA MITSUNORI (JP)
WATANABE SHINSUKE (JP)
IKEDA KENSUKE (JP)
Application Number:
PCT/JP2019/030147
Publication Date:
February 06, 2020
Filing Date:
August 01, 2019
Export Citation:
Assignee:
CITIZEN ELECTRONICS (JP)
CITIZEN WATCH CO LTD (JP)
CITIZEN WATCH CO LTD (JP)
International Classes:
H01H13/10; H01H11/00; H01H13/52
Foreign References:
| JP2014165025A | 2014-09-08 | |||
| JPH03185785A | 1991-08-13 | |||
| JP2014212355A | 2014-11-13 | |||
| JP2004039340A | 2004-02-05 | |||
| JPH02117624U | 1990-09-20 | |||
| JPS63202810A | 1988-08-22 | |||
| JPH04315716A | 1992-11-06 | |||
| JP2014086153A | 2014-05-12 | |||
| JPH05205567A | 1993-08-13 | |||
| JP2002319328A | 2002-10-31 |
Attorney, Agent or Firm:
ASAKAWA Tetsu (JP)
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