公开(公告)号：US20250020692A1

公开(公告)日：2025-01-16

申请号：US18635405

申请日：2024-04-15

Applicant: MPI CORPORATION

Inventor： SHENG-YU LIN ,  SHANG-JUNG HSIEH ,  CHE-WEI LIN ,  HSUEH-CHIH WU

IPC: G01R1/073 ,  G01R31/28

Abstract: An adhered multilayer die unit includes at least one probe zone and at least one non-probe zone for probes to be inserted in the probe zone. The adhered multilayer die unit includes dies and at least one adhesive layer. Each die includes at least one connecting surface, and through holes in the at least one probe zone for the probes to be inserted through the through holes of each die. The at least one adhesive layer adheres the connecting surfaces of the dies to each other. The at least one adhesive layer is entirely in the at least one non-probe zone. Accordingly, the adhered multilayer die unit of the invention has great structural strength in large-area condition, avoids drilling process difficulty problem and size restriction of fastening combining manner, avoids adhesive spillage and its affection on probes, and avoids adhesive-caused problems of adhesive spillage and die levelness deviation.

公开(公告)号：US20240241155A1

公开(公告)日：2024-07-18

申请号：US18409008

申请日：2024-01-10

Applicant: MPI CORPORATION

Inventor： CHIN-YI LIN ,  CHE-WEI LIN ,  HSUEH-CHIH WU ,  TSUNG-YI CHEN ,  SHANG-JUNG HSIEH ,  SHENG-YU LIN ,  CHIEN-KAI HUNG ,  SHENG-WEI LIN ,  SHU-JUI CHANG

IPC: G01R1/073 ,  G01R31/28

CPC classification number: G01R1/07342 ,  G01R31/2889

Abstract: A probe card includes a structure stiffener unit including a base with a lower surface where central and peripheral supporting elements protrude out and a main circuit board is fixed, a space transformer and a probe head disposed thereunder, which are disposed to the supporting elements by bolts and defined with central and peripheral regions located correspondingly to the central and peripheral supporting elements respectively, and a metal supporting member fixed on the space transformer in a direct contact manner and located correspondingly to the central region. The supporting member has a lower surface coplanar with the lower end surface of the peripheral supporting element, which is abutted on the space transformer, and an upper surface against which the central supporting element is abutted. The space transformer has great structural strength, flatness and heat dissipation effect for satisfying the large-area requirement and great electrical property testing stability.