Title:
非可逆回路素子およびその製造方法
Document Type and Number:
Japanese Patent JP6563122
Kind Code:
B2
Abstract:
A non-reciprocal circuit element (100) includes a magnetic plate (1), a permanent magnet (3), and a circuit board (5). The permanent magnet (3) is connected to one main surface (1A) of the magnetic plate (1), and the circuit board (5) is connected to the other main surface (1B) of the magnetic plate (1), with a solder bump (11) lying between the circuit board (5) and the other main surface (1B). The permanent magnet (3) can control the transmission of electrical signal from each of a plurality of signal conductors (41) of circuit board (5) to a corresponding one of a plurality of input/output terminals (31) of the magnetic plate (1). The non-reciprocal circuit element (100) further includes an underfill material (40) arranged between the magnetic plate (1) and the circuit board (5). The magnetic plate (1) has a through hole (25) formed therein, the through hole (25) extending from one main surface (1A) to the other main surface (1B). The through hole (25) has an empty space in which at least a part of a conductive film (27) arranged in the through hole (25) is exposed.
Inventors:
Tetsuya Ueda
Hironobu Shibata
Yukinori Tarui
Hidenori Ishibashi
Hironobu Shibata
Yukinori Tarui
Hidenori Ishibashi
Application Number:
JP2018514555A
Publication Date:
August 21, 2019
Filing Date:
April 21, 2017
Export Citation:
Assignee:
Mitsubishi Electric Corporation
International Classes:
H01P1/387; H01P11/00
Domestic Patent References:
| JP2004328465A | ||||
| JP2004336709A |
Foreign References:
| WO2015053213A1 |
Attorney, Agent or Firm:
Fukami patent office