Patent ID: 6063646
Filing Date: 2000-05-16
Classification: H01L

Abstract:
A method for producing semiconductor packages, comprising the steps of:forming electronic circuits for a plurality of semiconductor chips on a wafer;forming bumps on circuit-provided surface of the wafer in accordance with the electronic circuits, each bump having an upper end;screen-printing the bump-provided surface of the wafer with a resin sealant to encapsulate the bumps, including their upper ends, and the remaining circuit-provided surface of the wafer with the resin sealant, thereby forming a sealant layer;curing the sealant layer;grinding the cured sealant layer downward until the upper ends of the bumps become exposed;placing solder balls on the exposed upper ends of the bumps to weld the balls thereto; anddicing the wafer and the sealant layer as an integrated unit into individual semiconductor chips.