Advances in the design and test of a novel open ended microwave oven
| Title | Advances in the design and test of a novel open ended microwave oven |
| Publication Type | Conference Paper |
| Year of Publication | 2010 |
| Authors | Pavuluri SK, Tilford T, Goussetis G, Desmulliez MPY, Ferenets M, Adamietz R, Eicher F, Bailey C |
| Conference Name | Design Test Integration and Packaging of MEMS/MOEMS (DTIP), 2010 Symposium on |
| Date Published | may |
| Keywords | automatic computer controlled closed feedback loop, curing, curing material, dielectric materials, differential scanning calorimeter, differential scanning calorimetry, electromagnetic fields, electromagnetically lossy material, EM field, fibre optic sensors, fibre optic temperature sensor, forming, heating area, heating rate, lossy encapsulant, micromechanical devices, microwave component, microwave ovens, open ended microwave oven, open ended waveguide cavity oven, polymer dielectric, power conversion efficiency, pulsed microwave based curing, uniform curing, uniform heating, waveguides |
| Abstract | An enhanced open ended waveguide cavity oven is presented with improved uniform heating, heating rates and power conversion efficiency. This next generation oven produces more uniform EM fields in the evanescent region forming part of the heating area of the oven. These fields are vital for the rapid and uniform heating of various electromagnetically lossy materials. A fibre optic temperature sensor is used to measure in situ and in real-time the temperature of the curing materials. An automatic computer controlled closed feedback loop measures the temperature in the curing material and drives the microwave components to obtain predetermined curing temperature cycles for efficient curing. Uniform curing of the lossy encapsulants is achieved with this oven with typical cure cycle of 270 seconds with a ramp rate of 1 #x00B0;C/s and a hold period of 2 minutes. Differential scanning calorimeter based measurement for the pulsed microwave based curing of the polymer dielectric indicates an 98% degree of cure. |