Authors: Gaurav Saxena Roy Paily
Publish Date: 2014/10/07
Volume: 21, Issue: 11, Pages: 2331-2338
Abstract
In this paper we investigate four different heater geometries viz Meander Sshape DoubleMeander and DoubleSpiral for their inherent thermal uniformity Microheater with optimum dimensions of insulation layer is employed to decrease the layer deposition time and to improve the thermal uniformity Simulation studies are carried out to find the optimum dimension of insulation layer required for a targeted uniformity of 022 K/upmu mathrmm a value comparable to the reported literature Meander heater with 8upmu mathrmm nitride layer has resulted in an uniformity value of 0174 K/upmu mathrmm whereas a Sshape heater with 4upmu mathrmm nitride layer has resulted in an uniformity value of 0161 K/upmu mathrmm With silicon carbide SiC layer only a 08upmu mathrmm thick layer is required to obtain an uniformity of 0166 K/upmu mathrmm The combination of two methods ie the choice of suitable heater geometry plus optimization of insulation layer dimensions has served the purpose of electrical insulation while improving the thermal uniformity and reducing the insulation layer thickness all at a nominal increment 71 in power consumption
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