Windows of opportunity

AbstractIn the next half decade, the split in demand for GaAs substrates between device companies and epiwafer suppliers will only widen. Device makers have products based on MESFET devices, which are largely implant-based. Newer devices are virtually all based on epitaxy. The demand for the newer devices is increasing at a faster rate than that for MESFETs. Thus the demand for epiwafers is set to increase more strongly over the next five years