Process for producing electro-optic hybrid circuit board

摘要

The present invention provides a process for producing an electro-optic hybrid circuit board, which comprises the steps of: forming an undercladding layer (3) on a metal foil side (2) of a metal transfer sheet (4) that comprises a releasable substrate (1) and a metal foil (2) formed thereon; forming a core layer (5) on the undercladding layer (3); forming an overcladding layer (6) so as to cover the core layer (5) and the undercladding layer (3); stripping the releasable substrate (1) from the metal foil (2); and etching the metal foil (2) to thereby form a predetermined conductor pattern (7).