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:
Sep. 08, 1998
Kevin A McCullough, No. Kingstown, RI (US);
William B Rife, Greenville, RI (US);
Chip Coolers, Inc., Warwick, RI (US);
Abstract
A heat dissipating device which can provide multiple levels of pressure to a semiconductor package, having an outer peripheral ceramic region and an inner silicon region, is provided. A top cover member is provided with a central female-threaded bore. The top member is secured to the ceramic portion of the semiconductor package via a number of fasteners. A heat dissipating member, having male-threaded base, is threadably inserted into the female-threaded bore to engage the upper surface of the silicon portion of the semiconductor package. The pressure of the heat dissipating member is independently adjustable relative to the attachment pressure of the top member onto the ceramic portion of the semiconductor package. As a result, the multiple pressure requirements of the semiconductor package can be accommodated in a single heat dissipating device.