Process and apparatus 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).
Claims20
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.
An apparatus for disengaging a semiconductor die from a film comprising:
- a blade that has a surface for disengaging the semiconductor die from a film, wherein the blade extends along an axis of the semiconductor die and is inclined relative to a bottom surface of the semiconductor die.
An apparatus for separating semiconductor die from an adhesive tape comprising:
- a base having a planar surface for supporting a backside of a semiconductor substrate that has been attached to a film and separated into individual semiconductor die, wherein the base further includes an opening, and wherein a position of the opening corresponds to a position of the semiconductor die;
- a plunge-up blade mechanically coupled to a blade holder, wherein the plunge-up blade cooperatively moves through the opening to contact the adhesive tape and assist in separating the semiconductor die from the adhesive tape, wherein the plunge-up blade has a surface for disengaging the semiconductor die from the adhesive tape that is inclined along a length of the plunge-up blade;
- and
- a means for picking up the semiconductor die from the film after the plunge-up blade has moved through the opening.
Dependencies are inferred from the claim text.