Wiring core structure, semiconductor evaluation device and semiconductor device
First Claim
1. A wiring core structure comprising:
- a tubular-shaped core portion having a wiring hole for passage of a main wire to be a parasitic-inductance suppression target and having a body portion made of a soft magnetic material; and
a wound wire formed by winding a wire around said core portion and having both ends short-circuited, whereinsaid core portion includes a plurality of divided core portions which are disposed in a superposed relation and each have a wiring hole, andsaid plurality of divided core portions are formed such that shapes of said wiring holes and outside diameters of said body portions are different from each other and said wound wire is separately wound about all exterior surfaces of each divided core portion, thereby implementing a superposition structure without overlapping in plan view.
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Accused Products
Abstract
A wound wire is wound around a core assembly so that both ends are short-circuited. In a coupling pin insertion state in which a coupling pin is inserted in a through hole of the core assembly, outer-peripheral space parts of respective divided core portions of the core assembly are disposed so as to overlap in plan view. Consequently, an air gap is formed in a part of a side surface of the core assembly. Before formation of a covering member, a main wire is caused to pass through the air gap and is thus disposed in a wiring hole of the core assembly. Then, the covering member for closing the air gap is provided on an outer peripheral surface side of the core assembly including the air gap so that a core structure is obtained.
28 Citations
3 Claims
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1. A wiring core structure comprising:
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a tubular-shaped core portion having a wiring hole for passage of a main wire to be a parasitic-inductance suppression target and having a body portion made of a soft magnetic material; and a wound wire formed by winding a wire around said core portion and having both ends short-circuited, wherein said core portion includes a plurality of divided core portions which are disposed in a superposed relation and each have a wiring hole, and said plurality of divided core portions are formed such that shapes of said wiring holes and outside diameters of said body portions are different from each other and said wound wire is separately wound about all exterior surfaces of each divided core portion, thereby implementing a superposition structure without overlapping in plan view. - View Dependent Claims (2, 3)
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Specification