Semiconductor package with heat spreader

A semiconductor package with an embedded heat spreader (EHS) is proposed, which can be used for the fabrication of a semiconductor package, such as a FCBGA (Flip-Chip Ball Grid Array) package with a heat spreader, and which is characterized by the provision of a plurality of recessed portions, eithe...

Full description

Saved in:
Bibliographic Details
Main Author HSIAO CHENG-HSU
Format Patent
LanguageEnglish
Published 19.07.2005
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
Online AccessGet full text

Cover

More Information
Summary:A semiconductor package with an embedded heat spreader (EHS) is proposed, which can be used for the fabrication of a semiconductor package, such as a FCBGA (Flip-Chip Ball Grid Array) package with a heat spreader, and which is characterized by the provision of a plurality of recessed portions, either in the heat spreader attach area of the substrate, or in the support portion of the heat spreader, or in both, so as to allow the fill-in portions of the adhesive layer that are filled in these recessed portions to form anchor structures to benefit the heat spreader against crosswise shear stress. Moreover, since the provision of these recessed portions allows an increase in the contact area of the adhesive layer with the substrate and the heat spreader, it can help increase the adhesive strength to provide the heat spreader more securely adhered in position on the substrate.
Bibliography:Application Number: US20030437557