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Patent Searching and Data


Title:
SUBSTRATE WITH EMBEDDED COIL
Document Type and Number:
WIPO Patent Application WO/2012/008171
Kind Code:
A1
Abstract:
Provided is a substrate with embedded coil, which is less susceptible to occurrences of breakage defects or cracks even when cavities are formed. When viewed in perspective in a layering direction wherein insulation layers of a substrate main body (12) are layered, mutually overlapping second coil elements (34a, 34b) are formed further inward than interior circumferences of mutually overlapping first coil elements (32a-32c). Cavities (40) are formed continuously between at least one of coil elements (34a, 34b) and one insulation layer that is adjacent to the coil element(s) (34a, 34b), and another insulation layer that is opposite to the coil element(s) (34a, 34b), such that the coil element(s) (34a, 34b) are exposed; and, when viewed in perspective in the layering direction, are formed in an annular shape further inward than exterior circumferences of mutually overlapping first coil elements (32a-32c), with intervals disposed between said exterior circumferences, and further outward than inner circumferences of mutually overlapping second coil elements (34a, 34b).

Inventors:
NANJYO Jyunichi (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
南條 純一 (〒55 京都府長岡京市東神足1丁目10番1号 株式会社 村田製作所内 Kyoto, 〒6178555, JP)
Application Number:
JP2011/053144
Publication Date:
January 19, 2012
Filing Date:
February 15, 2011
Export Citation:
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Assignee:
Murata Manufacturing Co., Ltd. (10-1, Higashikotari 1-chome Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
株式会社 村田製作所 (〒55 京都府長岡京市東神足1丁目10番1号 Kyoto, 〒6178555, JP)
NANJYO Jyunichi (10-1, Higashikotari 1-chome, Nagaokakyo-sh, Kyoto 55, 〒6178555, JP)
International Classes:
H05K3/46; H01F17/00
Domestic Patent References:
WO2007145189A1
Foreign References:
JP2009094438A
JP2002289432A
JP2003109820A
Attorney, Agent or Firm:
YAMAMOTO Toshinori (SHINGIJUTSU PATENT OFFICE, Room 810 Kondo-bldg., 4-12, Nishitenma 4-chome, Kita-ku, Osaka-sh, Osaka 47, 〒5300047, JP)
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Claims: