Cascade Microtech, Inc.

Xcerra Corporation

Martin Cavegn

Jason Mroczkowski

Gregory D Spanier

Yukang Feng

James Hattis

Nadia Steckler

Michael Hanks

Aaren Lonks

An apparatus including a contactor having a hole and including a radio frequency absorptive material and a probe inserted in the hole to couple a test signal to a device under test is disclosed. A test system for testing integrated circuits including a contactor including a radio frequency absorptive material is disclosed. A method for making the contactor is also disclosed.

Reflective and interference controlled absorptive contactor

A socket assembly includes a housing with a plurality of through openings that extend between opposite surfaces of the housing. First and second plurality of contact members are positioned in a plurality of the through openings. The contact members each include major beams and minor beams with proximal ends attached to a center portion, and distal ends extending away from the center portion. The major beams preferably have a length greater than the minor beams. When the first circuit member is engaged with the socket assembly the ball grid array displaces the distal ends of the major beams to create a plurality of first and second forces. The first plurality of forces generally oppose the second plurality of forces. The first and second plurality of forces also generate an engagement force that biases the first circuit member toward the housing. The minor beams on the first and second plurality of contact members do not contribute to the engagement force.

Socket with a housing with contacts with beams of unequal lengths

Growing community of inventors

Lino Lakes, MN, United States of America

Martin Cavegn