Patent ID: 6996305
Filing Date: 2006-02-07
Classification: G02B,H05K

Abstract:
1. A process of forming opto-via holes, comprising: forming a plurality of via holes in a plurality of copper clad laminates using a drill; plating an inner wall of each of the via holes; exposing and etching plated portions of an upper side and a lower side of each copper clad laminate to form a circuit pattern on the upper and lower sides of the copper clad laminate; layering the patterned copper clad laminates on each other using an insulating resin adhesive, the insulating resin filling a space between the copper clad laminates and a portion of the via holes; removing the insulating resin adhesive from the via holes; and forming an optical waveguide in the vicinity of the via holes to form the opto-via holes.