Trimmable inductor

Details Trimmable inductor Trimmable inductor

1997-02-11

1999-12-21

Gellner, Michael L.

Inductor devices

Coil or coil turn supports or spacers

Printed circuit-type coil

336232, 336223, H01F 500, H01F 2728

Patent

active

060054670

ABSTRACT:
A trimmable inductor, comprises a supporting substrate (12) having spaced apart lead terminals, a coil (20) defined by an electrically conductive member mounted on the substrate in a continuous path of multiple turns forming a winding about an axis and extending between the lead terminals, and an electric conductive shorting member (30) extending and electrically connected between one or more turns (20) and (22) a terminal of the coil to enable selective inclusion and elimination of at least part of one of the turns of the coil.

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patent: 5239289 (1993-08-01), Ferraiolo et al.
patent: 5572180 (1996-11-01), Huang et al.
Askin et al., Printed Inductor With shorting Bars Deletable by Laser for Adjusting the Value of Inductance, IBM Technical Disclossure Bulletin, vol. 28 No. 7, Dec. 1995.
Patent Abstracts of Japan, App. No. 53161568, Dec. 29, 1978 "Chip Type Inductor", Pub. Jul. 11, 1980, Pub. No. 55091804 Applicant: TDK Corp./Inventor: Takahashi Tetsuo.
Patent Abstracts of Japan, App. No. 60098279, May 8, 1985 "Production of Variable Chip-Type Inductor", Pub. Nov. 14, 1986, Pub. No. 61256611, Applicant; Fujitsu Ltd./Inventor: Mishiro Eiji.
Patent Abstract of Japan, App. No. 57032864, Mar. 1, 1982 "Chip Type High Frequency Coil," Pub. Sep. 03, 1983, Pub. No. 58148412, Applicant: Matsushita Electric Ind. Co. Ltd./Inventor: Otani Yoshiaki.

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