公开(公告)号：US11460498B2

公开(公告)日：2022-10-04

申请号：US17034741

申请日：2020-09-28

Applicant: MPI CORPORATION

Inventor： Yang-Hung Cheng ,  Ya-Hung Lo ,  Chien-Hsun Chen ,  Chia-Nan Chou ,  Chung-Yen Huang ,  Shou-Jen Tsai ,  Fuh-Chyun Tang

IPC: G01R31/28 ,  G01R1/073

Abstract: An adjustable probe device includes fixed and movable probes, at least one of which is a signal probe having a coaxial structure. The movable probe is linearly slidable with a ground unit thereof abutted against a ground unit of the fixed probe. Another adjustable probe device includes a first movable probe for being grounded, and fixed and second movable probes both having a coaxial structure. Any of the two movable probes is selectable to be a functioning probe in a way that the contact ends of the functioning and fixed probes are located on a same plane for contacting two pads of a DUT at the same time, and the functioning probe is linearly slidable with a ground unit thereof abutted against a ground unit of the fixed probe. As a result, the probe interval is adjustable, lowering the cost of the impedance testing apparatus for circuit boards.

公开(公告)号：US20250044322A1

公开(公告)日：2025-02-06

申请号：US18672112

申请日：2024-05-23

Applicant: MPI Corporation

Inventor： Ya-Hung Lo ,  Chien-Hsun Chen ,  Chia-Nan Chou ,  Shou-Jen Tsai ,  Fuh-Chyun Tang

IPC: G01R1/067

Abstract: The present invention provides a quick coupling probe card, utilized to test circuit board. The quick coupling probe card comprises a base, a coaxial connector, mechanical connector, and probe holding part, wherein the base has a first surface and a second surface corresponding to the first surface, the coaxial connector arranged on the base has one end above the first surface, and is coupled to the test machine for transmitting the high frequency signal, the mechanical connector is arranged on the first surface for coupling to the test machine, and is closer to a center of the base than the coaxial connector, and the probe holding part, arranged on the second surface and utilized to couple to the coaxial connector, has one end connected to a high frequency probe corresponding to one specific kind of the different kinds of pitches.