Process for disengaging semiconductor die from an adhesive film
AssigneeFreescale Semiconductor, Inc.
InventorsLup Kweun Yee, Darrell Jacob Belmas
Life of this patent
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Abstract
An apparatus and method for separating a semiconductor die (303) from an adhesive tape (32) are disclosed. The apparatus includes a blade (34) mechanically coupled to a blade holder (36), wherein the blade (34) is inclined relative to the primary surface of the semiconductor die (303). The method further comprises lifting the semiconductor die (303) while it is attached to the adhesive tape (32) to assist disengagement. The blade (34) facilitates peeling of the semiconductor die (303) from the adhesive tape (32) while distributing stress exerted on the semiconductor die (303) over a larger surface area resulting in reduced die fractures (20).
Claims10
A method for disengaging a semiconductor die from a film comprising:
- forming a plurality of dice on a semiconductor substrate;
- attaching a bottom surface of the semiconductor substrate to a film
- dicing the semiconductor substrate into a plurality of individual die, wherein a bottom surface of the plurality of individual die remains attached to the film;
- disengaging a semiconductor die from the film, wherein disengaging further comprises:
- placing the plurality of individual die on an anvil;
- aligning a semiconductor die over an opening in the anvil;
- projecting a blade through the opening in the anvil to facilitate separation of the semiconductor die from the film, wherein the blade has a surface for disengaging the semiconductor die from the film that is inclined relative to a bottom surface of the semiconductor die;
- and
- lifting an edge portion of the semiconductor die above a surface of the anvil with the blade to facilitate disengagement the semiconductor die from the film.
Dependencies are inferred from the claim text.