Patent ID: 6223972
Filing Date: 2001-05-01
Classification: B23K

Abstract:
A heat resistant mold for making a metal foil and solder assembled object using material pieces having edges with a solderable foil around at least some of the edges of each of the material pieces and solder, which comprises:a base having a pattern with sides and a floor, the pattern having a shape in an outline of the object, the sides forming an obtuse angle with the floor in a direction away from an inside of the pattern, wherein in use of the mold, the material pieces having the solderable foil are placed in the inside of the pattern, the material pieces are spaced apart from the sides of the pattern and each other and wherein as the solder is melted between the material pieces onto the foil and the sides of the pattern, due to a surface tension of the molten solder and the obtuse angle of the sides of the pattern, the solder on the foil on the edges of the material pieces adjacent the sides of the pattern forms a rounded bead which is open to the air.