Lead frame, semiconductor device, and method for manufacturing lead frame

摘要

A lead frame includes a plurality of leads (10) defined by an opening (11) extending in a thickness direction. An insulating resin layer (20) fills the opening to entirely cover side surfaces (10C) of each lead and to support the leads. A first surface (10A) of each lead is exposed from a first surface (20A) of the insulating resin layer (20).