Patent ID: 8193599

Claim:
A method of fabricating a wafer level module, comprising: providing a first solid adhesive film with a first release film and a second release film that respectively cover a first surface and a second surface of the first solid adhesive film; patterning a plurality of openings through the first solid adhesive film; removing the first release film to expose the first surface of the first solid adhesive film; aligning and adhering the exposed first surface of the first solid adhesive film to a first substrate; removing the second release film to expose the second surface of the first solid adhesive film; aligning and adhering the exposed second surface of the first solid adhesive film to a second substrate; aligning and adhering a third substrate to the second substrate via a patterned second solid adhesive film; aligning and adhering a diaphragm layer to the third substrate via a patterned third solid adhesive film; aligning and adhering a fourth solid adhesive film to the first substrate with one removable release film covering the fourth solid adhesive film; and performing slicing to form a plurality of wafer level lens modules with the removable release film; wherein the first substrate comprises a first spacer layer and the second substrate comprises a lens substrate.