Patent ID: 6780225
Filing Date: 2004-08-24
Classification: B23K,Y10S

Abstract:
A solder reflow oven system comprising:an oven having two ends, said oven capable of being sectioned into a plurality of zones, wherein each of said plurality of zones includes at least one heater, wherein said at least one heater includes a heater gas inlet port and a heater gas outlet port; an oven vent being interposed between at least two zones of said plurality of zones; a conveying mechanism for carrying objects to be heated through said oven from a first end of said ends to a second end of said ends; a process gas reservoir capable of supplying substantially inert gas to said heater gas inlet port of preselected said at least one heater; baffle means for forming a substantially impervious wall of gas at each of said ends substantially preventing air infiltration into said oven; and gas filtration means for substantially condensing and filtering contaminants from oven gas, said gas filtration means being in fluid communication with said heater gas outlet port of preselected said at least one heater and said oven vent to draw oven gas out of said oven, said gas filtration means being in fluid communication with said heater gas inlet port of preselected said at least one heater to reintroduce filtered gas back into said oven, wherein said gas filtration means being in fluid communication with said baffle means for supplying filtered gas to form the substantially impervious wall of gas.