Patent ID: 6859056
Filing Date: 2005-02-22
Classification: G01R

Abstract:
1. A test fixture for semiconductor packages, for electrically connecting a plurality of semiconductor packages to a test device where tests are performed, the test fixture comprising: a circuit board for accommodating the plurality of semiconductor packages thereon, and for electrically connecting the semiconductor packages to the test device; an interposer detachably mounted on the circuit board, and formed with a plurality of through holes that penetrate through the interposer, so as to allow the semiconductor packages to be received in the through holes; and a covering member mounted on the interposer and for covering the semiconductor packages received in the through holes of the interposer, wherein the covering member is formed on a surface thereof with a plurality of elastic mechanisms corresponding in position to the through holes in a manner that the elastic mechanisms are adapted to abut against the semiconductor packages and provide a resilient force as to allow the semiconductor packages to be firmly in contact with the circuit board, and a plurality of protruding portions are further formed on a surface of the covering member corresponding in position to the elastic mechanisms in a manner that the protruding portions are interposed between the surface of the covering member and the elastic mechanisms.