Patent ID: 6210805
Filing Date: 2001-04-03
Classification: C03C,H01B,Y10T

Abstract:
A glass plate provided with a conductive layer, which comprises a glass plate, a conductive layer baked to the glass plate and containing a conductive material as the main component, and a glass exudate coating layer formed to substantially cover the conductive layer, wherein the conductive layer has a portion to be connected with a power supply terminal, and said portion is not substantially covered by the glass exudate coating layer, and the conductive layer is one formed by firing a conductive paste printed on the glass plate, and the glass exudate coating layer is one formed by exudation to the conductive layer surface of low melting point glass formed by melting of a low melting point glass powder contained in the conductive paste at the time of firing, and wherein the conductive paste contains inorganic components and the inorganic components of the conductive paste comprise substantially from 50 to 90 wt % of a conductive material powder, from 10 to 50 wt % of a low melting point glass powder and from 0 to 30 wt % of an inorganic refractor filler powder, and the low melting point glass has substantially the following composition as represented by wt % of oxides:PbO 50 to 85 wt %, B.sub.2 O.sub.3 10 to 35 wt %, SiO.sub.2 1 to 25 wt %, TiO.sub.2 0 to 20 wt %, ZrO.sub.2 0 to 15 wt %, SnO.sub.2 0 to 10 wt %, Al.sub.2 O.sub.3 + CeO.sub.2 0 to 2 wt %, Li.sub.2 O + Na.sub.2 O + K.sub.2 O 0 to 3 wt %, MgO + CaO + SrO + BaO 0 to 3 wt %, P.sub.2 O.sub.5 0 to 3 wt %, Zno 2 to 20 wt %.