An on-board tester (referred to as a "test fixture") for testing integrated circuit chips, particularly ball grid array (BGA) chips. The test fixture of the present invention eliminates many of the problems associated with presently available test fixtures, particularly the lack of control in mounting...http://www.google.de/patents/US6583636?utm_source=gb-gplus-sharePatent US6583636 - BGA on-board tester
