Tab tape, method of bonding tab tape and tab tape package
AssigneeInternational Business Machines Corporation
InventorKatsuyuki Yonehara
Life of this patent
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Abstract
A TAB (tape automated bonding) tape is disclosed which includes one or more openings, each adapted to receive a semiconductor chip, and electrical leads extending into each such opening. Significantly, this TAB tape also includes means for preventing a semiconductor chip, positioned within a tape opening, from being lifted toward a bonding tool as a result of electrical leads adhering to the bonding tool, when the bonding tool is used to bond contact pads on the semiconductor chip to the leads extending into the opening.
Claims2
A method for mounting a semiconductor chip onto a TAB tape, comprising the steps of:
- providing a TAB tape which comprises an electrically insulating tape including at least one opening intended to receive a semiconductor chip, electrically conductive leads on the insulating tape which extend into said opening and means on said insulating tape, including at least one projecting portion, extending into said opening, for engaging a surface of said chip bearing contact pads;
- positioning said semiconductor chip adjacent said opening so that said leads are positioned adjacent said contact pads and said projecting portion is positioned adjacent said surface bearing said contact pads;
- moving a bonding tool toward said opening, said bonding tool including a bottom surface used for bonding said leads to said contact pads and at least one inclined surface for engaging said projecting portion;
- and
- bending said projecting portion toward said surface of said semiconductor chip bearing said contact pads by engaging said projecting portion with said inclined surface during said moving.
Dependencies are inferred from the claim text.