Patent ID: 7271036
Filing Date: 2007-09-18
Classification: H01L

Abstract:
1. A method of directing encapsulating compound to flow more evenly around a leadframe inside a mold cavity, wherein the leadframe has a die paddle that is adapted to receive a die, a plurality of spaced lead fingers, and a tie bar adjacent the lead fingers and extending between the die paddle and an edge of the leadframe, the method comprising: forming an offset in the tie bar; positioning the leadframe in the mold cavity in a manner such that the offset is adjacent an injection port through which encapsulating compound is to be injected into the mold cavity; injecting encapsulating compound into the mold cavity such that a portion of the compound contacts the offset and a first surface of the leadframe; and directing the portion of the encapsulating compound wherein the offset exerts pressure on the portion of compound so that the compound flows through the spaces between the lead fingers and toward a second surface of the leadframe.