Patent ID: 6145734
Filing Date: 2000-11-14
Classification: B23K,H05K

Abstract:
A reflow method for reflow soldering of electronic components onto a printed circuit board, wherein the printed circuit board is preheated at a preheating area of a reflow device and the reflow soldering is performed at a main heating area of said reflow device, comprising;heating one surface of a printed circuit board by a radiant heating section in the main heating area of said reflow device, on which electronic components are placed and onto which cream solder is applied at to-be-connected points; andconcurrently, flowing hot air into a space between said radiant heating section and a mask plate disposed between said radiant heating section and said printed circuit board, and blowing the hot air through a plurality of holes in said mask plate locally substantially toward and roughly perpendicular to to-be-connected points on said one surface of the printed circuit board.