ELECTRODE BASE

摘要

An object of the present invention is to provide an electrode base in which an electrode capable of exhibiting a good external signal transmission function is formed on a surface of a thin-film base. In the present invention, a lead wire (2) made of aluminum is bonded to a surface of a glass substrate (3) that is a thin-film base having a plate thickness of about 0.7 to 2.0 mm, by using an ultrasonic bonding method. An external lead-out electrode (23) made of copper is formed so as to extend from a surface of one end portion of the lead wire (2) to a region outside the glass substrate (3). The lead wire 2 functions as an internal signal receiver, and the external lead-out electrode (23) has an external signal transmission function.