Patent Number: 6,297,652

Title: Electric resistance measuring apparatus and method for circuit board

Abstract: Provided are an electric resistance measuring apparatus for circuit boards, and an electric resistance measuring method using the same. An electric resistance measuring apparatus includes a one-side inspection circuit board having a plurality of connecting electrodes, and layer connector members provided on the inspection circuit board and formed of a conductive elastomer. Each of the layer connector members is brought into simultaneous contact with a plurality of connecting electrodes at one side thereof to be electrically connected thereto, and at the other side thereof, brought into simultaneous contact with a plurality of electrodes to be inspected to be electrically connected thereto. In this measurable state, two connecting electrodes are used for current supply and for voltage measurement, thereby performing measurement of electric resistance on a specified electrode to be inspected. Another electric resistance measuring apparatus includes a connector member provided on the surface of the inspection circuit board. The connector member is composed of an insulating base, front-side terminals, back-side terminals and a short-circuit member for electrically connecting the adjacent front-side terminals to each other.

Inventors: Shimoda; Sugiro (Hidaka, JP), Kimura; Kiyoshi (Hanno, JP)

Assignee: JSR Corporation

International Classification: G01R 31/28 (20060101); G01R 027/02 (); G01R 031/02 (); G01R 027/08 (); G01R 031/26 ()

Expiration Date: 10/02/2018