Patent ID: 6436614
Filing Date: 2002-08-20
Classification: G02F,Y10T

Abstract:
A method for the formation of a thin optical crystal layer overlying a low dielectric constant substrate comprising:implanting ions into an optical crystal substrate, thereby defining therein, a thin ion-implanted optical crystal layer overlying a bulk optical crystal substrate; bonding a low dielectric constant substrate to the ion-implanted optical crystal layer to form a bonded structure; thermally annealing the bonded structure at a temperature in the range of 300Â° C. to 600Â° C. for 30 minutes to 300 minutes; and separating the thin ion-implanted optical crystal layer and low dielectric constant substrate from the bulk optical crystal substrate by applying mechanical force in the direction of separation, thereby forming a thin optical crystal layer overlying a low dielectric constant substrate.