Patent ID: 6933178

Claim:
A method of manufacturing semiconductor packages, comprising the steps of: providing a die carrier, the die carrier having a front side and a back side and comprising a plurality of substrate units, and applying an adhesive on the substrate units to mount at least one semiconductor die to each of the substrate units and on the front side of the die carrier via the adhesive; placing and securing the die carrier in a jig fixture, the jig fixture comprising a submold and at least one exhaust passage communicated with the outside of the jig fixture, and drawing air in the jig fixture through the exhaust passage to the outside of the jig fixture to form a negative-pressure environment in the jig fixture during a curing process; electrically connecting the semiconductor dies to the die carrier via a plurality of first conductive elements; forming an encapsulation body to encapsulate the semiconductor dies and the first conductive elements; attaching a plurality of second conductive elements to the back side of the die carrier; and singulating the die carrier to separate apart the plurality of substrate units.