Patent ID: 7439098

Claim:
A method of manufacturing a semiconductor package, comprising steps of: providing a silicon substrate having an insulative surface, and the silicon substrate divided into a plurality of package units; forming at least one patterned metal layer on the insulative surface of the silicon substrate; forming at least one insulation layer on the patterned metal layer, and the patterned metal layer being partially exposed for functioning as plural sets of the device attaching pads and ball attaching pads; electrically connecting a plurality of devices to the sets of the device attaching pads, and each package unit of the silicon substrate at least comprising one device and one set of the ball attaching pads; forming a ringed dam block at a periphery of each package unit to form a closed filling region, and the set of ball attaching pads of the package unit positioned on an exposed surface of the insulation layer of the silicon substrate surrounding the ringed dam block; filling up the closed filling regions of the package units with a sealing compound, for covering portions of the insulative surface of the silicon substrate and encapsulating the devices, wherein the set of ball attaching pads are spaced apart from the ringed dam block and the sealing compound; attaching a plurality of solder balls to the sets of ball attaching pads; and separating the package units of the silicon substrate, for forming a plurality of independent semiconductor packages.