Patent ID: 7514654

Claim:
A glass article with a metal member joined thereto, comprising: an electroconductive coating film formed on at least a part of a surface of the glass article by baking a silver paste that includes Ag particles and a glass frit, wherein the metal member comprises two joining planes, a leg part that bridges the two joining planes, and a connection part that projects unward from the leg part, and wherein the two joining planes of the metal member are fixed onto the electroconductive coating film with a lead-free solder alloy containing Sn as a main component, and wherein when the glass article undergoes a tension test in which the metal member is pulled upward, the glass article and the metal member are ruptured because of a breakage of an inner portion of the glass article in a vicinity of a junction portion soldered using the lead-free solder and not because of a breakage of the junction portion, and wherein the lead-free solder alloy is a Sn—Ag based alloy that contains 2 to 4 mass % of Ag, and a content of other minor components except for Sn and Ag in the Sn—Ag based alloy is 0.5 mass % or less, and wherein the Sn—Ag based alloy has a liguidus temperature of 230° C. or lower, and the difference of the liquidus temperature and a solidus temperature of the Sn—Ag based alloy is 10° C. or less, and wherein a total area of the two joining planes is in a range of 40 mm 2 to 45 mm 2 .