Abstract:
An apparatus and method attaching a heatsink to a surface of an electronic package comprising a substrate, an integrated circuit chip attached to the surface of the substrate, an encapsulant encapsulating the integrated circuit chip and contacting at least a portion of the surface of the substrate, and an orifice formed in the top portion of the encapsulant to attach the heatsink to the surface of the electronic package. The heatsink may be attached and removed as desired to allow for package identification or rework.
Abstract:
A semiconductor package and method for preparing same to obtain improved die adhesion to organic chip carriers has been developed. A copper die bond pad is coated with a passivation material and attached to an organic card with the same passivation material. A semiconductor die may be adhered to the coated die bond pad with either the same passivation material or a common die bond adhesive. Alternatively, the passivation material is coated only on the portion of the die bond pad where the die is attached, and common die bond adhesive attaches the die bond pad to the organic card.
Abstract:
AN APPARATUS AND METHOD ATTACHING A HEATSINK (214) TO A SURFACE OF AN ELECTRONIC PACKAGE (200, 300, 300, 500, 600) COMPRISING A SUBSTRATE (202), AN INTEGRATED CIRCUIT CHIP (204) ATTACHED TO THE SURFACE OF THE SUBSTRATE, AN ENCAPSULANT (206, 226, 306, 326, 406, 506, 606) ENCAPSULATING THE INTEGRATED CIRCUIT CHIP AND CONTACTING AT LEAST A PORTION OF THE SURFACE OF THE SUBSTRATE, AND AN ORIFICE (208, 308) FORMED IN THE TOP PORTION OF THE ENCAPSULANT TO ATTACH THE HEATSINK TO THE SURFACE OF THE ELECTRONIC PACKAGE. THE HEATSINK MAY BE ATTACHED AND REMOVED AS DESIRED TO ALLOW FOR PACKAGE IDENTIFICATION OR REWORK.
Abstract:
The present invention relates to an assembly mount supporting a heat sink (16) relative to a surface of an electronic device (15) on a substrate (13) to enable heat to pass from said device (15) to said heat sink (16). The invented assembly mount comprises at least two flexible, retention posts (11, 12) affixed to members secured to a surface of the substrate (13) at a predetermined angle and each of said flexible, retention post (11, 12) has two ends, one of said ends being removably affixed to said surface of said substrate (13), and the other of said ends having means frictionally engaging and supporting the heat sink (16) in such a manner that said heat sink (16) is supported in a close, heat transferring position relative to said electronic device (15).