THICK FILM ELECTRIC CONDUCTOR PASTE OF AUTOMOBILE GLASS

PURPOSE: To provide thick film conductive paste having large soldering performance of a terminal and adhesive strength without thickening a film thickness by forming an electrically conductive grid in an automobile window by using the thick film conductive paste. CONSTITUTION: A wide area part called bus bars 3 to adhere an electrode terminal becomes necessary for a grid 2 arranged on an automobile rear window 1 when a cloudiness preventive member of an automobile window is used. A structure that black glass paste called enamel is printed between a glass plate and sliver so that this bus bar part 3 cannot be seen from outside of an automobile, is increasing. In this case, even if a film thickness of silver paste is not made thick, thick film conductive paste having high soldering performance of a terminal and adhesive strength can be obtained by simultaneous baking with the enamel. That is, powder on which for example, the ratio of its surface area to weight is 1.1m /g and its particle diameter is 1.0μm to 0.6μm and the spherical critical pigment volume concentration CPVC is 56%, is used as silver powder of a composition of thick film paste, and soldering performance or the like of a terminal can be enhanced without thickening a film thickness.