Patent ID: 8766397
Filing Date: 2014-07-01
Classification: H01L

Abstract:
1. An optoelectronic integrated circuit substrate comprising: a first region and a second region, the first region including a buried insulation layer having a first thickness and the second region including a buried insulation layer having a second thickness different from the first thickness; optical devices on the first region; and electronic devices on the second region, wherein the buried insulation layer of the first region is thicker than the buried insulation layer of the second region, the buried insulation layer of the first region has a thickness from about 0.5 μm to about 3 μm at a depth from about 100 nm to about 500 nm from a top surface of the optoelectronic integrated circuit substrate, and the buried insulation layer of the second region has a thickness from about 5 nm to about 300 nm at a depth from about 1 nm to about 100 nm from the top surface of the optoelectronic integrated circuit substrate.