Patent ID: 8426255

Claim:
A method for manufacturing a semiconductor package structure, comprising steps of: forming a plurality of conductive pastes on a matrix lead frame, wherein a groove is located within a predetermined distance from each conductive paste on the lead of the matrix lead frame; partially curing the conductive pastes so that the conductive pastes are in a semi-cured, tacky and semi-solid state; preparing at least one chip with a plurality of bumps thereon; electrically connecting the chip and the lead of the matrix lead frame by implanting the plurality of bumps into the semi-cured conductive pastes, wherein the groove on the lead of the matrix lead frame is configured to receive and confine overflowed semi-cured conductive pastes; curing the semi-cured conductive pastes to completely secure the bumped chip; and forming an encapsulating material to cover the lead frame and the chip.