Patent ID: 7419565
Filing Date: 2008-09-02
Classification: H01L,Y10T

Abstract:
1. A method for encapsulating an area on a substrate with an encapsulating perimeter seal comprising the steps of a) providing a substrate having an area on a surface thereof which is to be encapsulated, b) providing an assembly fixture which has features formed into the surface of the fixture, and vacuum orifices associated with the features of the fixture, c) positioning a substantially flat formable sheet onto the assembly fixture, and forming the sheet to the features of the assembly fixture by applying a negative pressure through the vacuum orifices, wherein corresponding features are formed in the sheet, d) patterning a bead of adhesive onto the sheet or onto the substrate, the patterned bead of adhesive corresponding to the perimeter of the area on the substrate to be encapsulated, e) clamping together the substrate and the sheet, causing the patterned bead of adhesive to flow between the substrate and sheet in the area of compression, wherein the patterned bead of adhesive is proximate to the features formed in the sheet, and wherein the features formed in the sheet inhibit the spread of adhesive into the area to be encapsulated, and f) curing the adhesive to form a perimeter seal between the substrate and the sheet.