Abstract:
An electronic package which includes a flexible substrate, stiffener and chip. The chip is bonded to the substrate, which was secured to the stiffener. Strain relief means are utilized at various locations in the package to prevent problems (e.g., tape "wrinkling") associated with relatively large differences in coefficients of thermal expansion between the package's various elements.
Abstract:
An electronic package wherein an electronic device (e.g., chip) on a circuitized substrate of the package is thermally coupled to a heatsink in a separable manner using a plurality of compressible, thermally conductive members (e.g., solder balls). These members are compressed and permanently deformed as part of the thermal coupling.