The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 11, 2000
Filed:
Dec. 10, 1996
William Infantolino, Vestal, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A test structure tests an electronic card having electrical contacts on one face and a chip on the other face. By way of example, the electrical contacts on the card comprise an array of solder balls. The structure comprises a socket for receiving the card such that the electrical contacts of the card face electrical contacts within the socket. The structure further comprises a plate, received over the socket and having at least two ribs which protrude downwardly from one face of the plate and are positioned over the socket to engage a center portion of the chip when the card is received in the socket. The plate also has at least two holes. One of the ribs is positioned between the two holes but does not surround either of the holes. Consequently, forced air can flow downwardly through the holes in the plate, horizontally between the plate and the chip and out of the test structure. Preferably, the two ribs cross each other, and there are four holes in the plate which are arranged in four respective quadrants defined by the cross.