Patent ID: 6495895
Filing Date: 2002-12-17
Classification: B81B,H01L,H05K

Abstract:
A package having an integral window for packaging at least one microelectronic device, comprising:a first electrically insulating plate comprising a multilayered material, having a first surface, an opposing second surface, and a first aperture disposed through said first plate; an electrically conductive metallized trace disposed on the second surface of said first plate; an integral window disposed across the first aperture and bonded to said first plate, for providing optical access to a microelectronic device disposed within said assembly; and a second electrically insulating plate having a third surface, an opposing fourth surface, and a second aperture disposed through said second plate; an electrically conductive metallized trace disposed on the fourth surface of the second plate; and a third electrically insulating plate, attached to the fourth surface; wherein the third plate includes a third aperture disposed through said third plate; wherein the third aperture is larger than the second aperture; wherein the first plate is attached to the second plate by joining the second surface to the third surface; and wherein the second aperture is larger than the first aperture.