An optical circuit substrate sheet and an optoelectronic hybrid substrate sheet having the same

摘要

Provided is a photo-conductor substrate sheet which is free from warping or cracking, and which does not cause cracks in the core, and an optoelectronic hybrid substrate sheet provided with the sheet. An optical circuit substrate sheet (S) of the present invention comprises an insulating sheet (1), an undercladding layer (4) formed on a first surface of the insulating sheet (1) Holes 4a are formed in a portion of the surface of the undercladding layer 4 other than the core forming portion of the under-cladding layer 4 and the hole portions 4a are formed on the first surface of the insulating sheet 1, 4a is set to 5% or more and 99% or less. The optoelectronic hybrid substrate sheet of the present invention comprises at least one electric circuit 2 formed on the second surface of the insulating sheet 1 of the light guide substrate sheet S and is a part of the insulating sheet 1 At least one optoelectronic hybrid substrate (R) in which an electric circuit (2), an underclad layer (4) and a core (5) are formed on an insulating substrate.