Patent ID: 10620491

Abstract:
A method of fanning an electrical connection in a liquid crystal on silicon (LCOS) device, comprising: providing a silicon substrate including a first surface and a second surface, wherein the silicon substrate includes an conductive pad at the first surface; providing a cover glass panel that includes a cover glass, a transparent electrode layer formed upon the cover glass, and a first sealing material layer formed upon the transparent electrode layer; forming a second sealing material layer upon the first surface of the silicon substrate, wherein the second sealing material layer covers the conductive pad; forming a display layer, comprising a liquid crystal portion, a first seal portion, and a second seal portion, upon the second sealing material layer; wherein the first seal portion and the second seal portion are situated to form a space between them; and wherein the space is situated on top of the conductive pad; placing the cover glass panel upon the display layer, wherein the first sealing material layer is placed directly in contact with the display layer; singulating the cover glass panel, the display layer, and the silicon substrate, through the space between the first seal portion and the second seal portion, wherein the first seal portion is separated from the second seal portion; subsequently dispensing a conductive adhesive to the cover glass panel and the silicon substrate, wherein the conductive adhesive forms an electrical connection between transparent electrode layer and the conductive pad.