Patent ID: 8969137
Filing Date: 2015-03-03
Classification: H01L

Abstract:
1. A method of manufacturing a packaged circuit having a solder flow-impeding plug on a lead frame, the method comprising: partially etching an internal surface of a lead frame at dividing lines between future sections of the lead frame as a first partial etch forming a trench; applying a non-conductive material that is adhesive to the lead frame in the trench, such that the non-conductive material overlaps the internal surface of the lead frame adjacent the trench on at least one side to form the solder flow-impeding plug; attaching one or more components to the internal surface of the lead frame; encapsulating the one or more components and the lead frame; and partially etching an external surface of the lead frame at the dividing lines to disconnect different sections of lead frame as a second partial etch.