公开(公告)号：EP1779471A2

公开(公告)日：2007-05-02

申请号：EP05761831.6

申请日：2005-06-15

Applicant: FormFactor, Inc.

Inventor： ELDRIDGE, Benjamin, N. ,  VASQUEZ, Barbara ,  SHINDE, Makarand, S. ,  MATHIEU, Gaetan, L. ,  SPORCK, Nicholas, A.

IPC: H01R11/18

CPC classification number: G01R31/2889 ,  G01R1/0416 ,  G01R1/07307

Abstract: A wafer test assembly includes multiple probe head substrates arranged like tiles with connectors attached to one side and probes supported on the opposing side. In one embodiment, flexible cable connectors directly connect the connectors on the probe head tile to a test head, while in another embodiment the flexible cables connect the probe head tile to a PCB providing horizontal routing to test head connectors. In one embodiment, leveling pins provide a simplified support structure connecting to a retaining element attached to the tiles to provide for applying a push-pull leveling force. A test head connector interface frame enables rearrangement of connectors between the test head and the probe card to provide for both full wafer contact or partial wafer contact. The test head connectors are rearranged by being slidable on rails, or pluggable and unpluggable enabling movement over a range of positions.

公开(公告)号：EP1735628A2

公开(公告)日：2006-12-27

申请号：EP05736081.0

申请日：2005-04-08

Applicant: FormFactor, Inc.

Inventor： ELDRIDGE, Benjamin, N. ,  KHANDROS, Igor, Y. ,  MILLER, Charles, A. ,  SPORCK, Nicholas, A.

IPC: G01R31/02

CPC classification number: G01R1/0491 ,  G01R1/073 ,  G01R31/3025

Abstract: A base controller (210) disposed in a test cassette (110) receives test data for testing a plurality of electronic devices (236a,236b). The base controller wirelessly transmits the test data to a plurality of wireless test control chips (214a,214b,214c,214d,214e,214f,214g), which write the test data to each of the electronic devices. The wireless test control chips (214a,214b,214c,214d,214e,214f,214g), then read response data generated by the electronic devices (236a, 236b), and the wireless test control chips wirelessly transmit the response data to the base controller (210).