US Patent 7588819 Window glass for vehicle

A window glass for a vehicle, wherein the window glass includes a glass plate, a conductor formed on a surface of the glass plate and an electronic component electrically connected to the conductor via a solder, wherein the solder has gap portions formed therein, is lead-free and contains a buffer component and a conductive component, and wherein the conductive component is present in the solder in an amount of 58-93 volume %, based on a total volume of the solder, or the solder has a specific gravity of 70-93%, based on a specific gravity of the conductive component, whereby the adhesive strength of the solder and the breaking strength of the glass plate are improved.