Method for vacuum-tight butt joining by brazing a stainless steel part to a ceramic part, in particular stainless steel end caps to a ceramic housing of a vacuum switch, in which the stainless steel part is annealed prior to the brazing step and the portion of the stainless steel part directly adjoining the ceramic part at the brazing joint location is of a thickness not exceeding 0.8 mm and a height between about 4 and 12 mm.
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