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Patent Searching and Data


Title:
FILTER COMPONENT HAVING ESD PROTECTION FUNCTION
Document Type and Number:
WIPO Patent Application WO/2018/025694
Kind Code:
A1
Abstract:
A filter component (10) having an ESD protection function is provided with a mounting type inductor component (20) and a base substrate (30). An ESD protection element (40) and a capacitor (50) are formed in the base substrate (30). The base substrate (30) has a semiconductor substrate (31), a front surface side rewiring layer (322), and a back surface side rewiring layer (321). A first mounting component connection terminal conductor (341) and a second mounting component connection terminal conductor (342), to which the mounting type inductor component (20) is connected, are formed on the outer surface of the front surface side rewiring layer (322). A first external connection terminal conductor (331), a second external connection terminal conductor (332), and a third external connection terminal conductor (333) are formed on the outer surface of the back surface side rewiring layer (321). The ESD protection element (40) is formed on the semiconductor substrate (31). The capacitor (50) is formed in the front surface side rewiring layer (322) or in the back surface side rewiring layer (321).

Inventors:
NAKAISO Toshiyuki (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
Application Number:
JP2017/026755
Publication Date:
February 08, 2018
Filing Date:
July 25, 2017
Export Citation:
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Assignee:
MURATA MANUFACTURING CO., LTD. (10-1, Higashikotari 1-chome Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
International Classes:
H03H7/075; H01L21/822; H01L27/04; H02H9/04
Domestic Patent References:
2011-12-08
Foreign References:
JPS6048332U1985-04-05
JP2007294746A2007-11-08
JP2015159147A2015-09-03
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (1-4-34, Noninbashi Chuo-ku, Osaka-sh, Osaka 11, 〒5400011, JP)
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