Micro-buried structure for electrical isolation formed by hydride vapour phase epitaxy
A micro-buried structure for electrical isolation has been successfully realised using hydride vapour phase epitaxy (HVPE). The width of the buried region is ~2 µm and the resistivity between each region is ~1 MΩ when the applied voltage is 2 V. It was also found that the semi-insulating buried heterostructure formed by HVPE is useful for reducing reflection at the isolation region.