Patent ID: 6765339
Filing Date: 2004-07-20
Classification: H01K,H05B

Abstract:
A process for heating a material to be processed using an infrared lamp with a closed enveloping tube including an emission source joined with contacts for a power supply in the form of a carbon ribbon which, extending in a direction of the long axis of the enveloping tube, determines an irradiation length of the infrared lamp, wherein the carbon ribbon has a length which is greater than the irradiation length by at least a factor of 1.5, which permits a heating rate of at least 250Â° C./second, the process comprising the step of:operating the infrared lamp such that its emission maximum lies with a wavelength in a range from 1.8 &mgr;m to 2.9 &mgr;m, and in that its power output reaches at least 15 Watts per cm3 of volume enclosed by the enveloping tube over the irradiation length.