Patent ID: 8052035
Filing Date: 2011-11-08
Classification: B23K,H05K,Y10T

Abstract:
1. A method for forming solder bodies on a substrate, comprising: positioning a first mask plate, which is formed with at least one first through-hole, on the substrate; filling the first through-hole with a first solder paste so as to form a first solder body on the substrate; positioning a second mask plate, which has upper and lower surfaces and which is formed with at least one second through-hole and at least one recess spaced apart from the second through-hole, on the substrate in such a manner that the first solder body is received in and protected by the recess, wherein the recess is indented from the lower surface, and has a closed end disposed adjacent to the upper surface and defined by a closing wall, the closing wall protruding from the upper surface; filling the second through-hole with a second solder paste so as to form a second solder body on the substrate while the first solder body is received in and protected by the recess; and removing the second mask plate from the substrate.