Micro-BGA beam lead connection with cantilevered beam leads

摘要

A tape automated bonding (TAB) tape is provided with an insulating tape having a die receiving section. The TAB tape also has a conductive wiring pattern forming a plurality of traces including a land at one end and a beam lead at another end. A tape window is formed in a portion of the tape die receiving section. At least one trace beam lead extends over the tape window from a first direction and is connected to a tie bar adjacent an opposing side of the tape window and at least one trace beam lead extends over the tape window from a second direction different than the first direction and is cantilevered over the tape window.