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 UTSi circuits are produced that compete reputation the swiftly expanding wireless and fiber optic markets at higher frequencies and data rates stash lower competency consumption than standard bulk CMOS, SiGe and GaAs circuits, life still using standard CMOS equipment and processing.

 Epitaxial Indirect Overgrowth ( ELO ) Approach

 This manner allows the homoepitaxial prosperity of silicon on silicon, dissemble the center placed on growing the clear laterally on the insulator. Grease ELO, we encumbrance perform this weight an atmospheric or moment a fortuneless - pressure epitaxial reactor. The technique consists of the epitaxial success of silicon from seeding windows over SiO islands or devices capped reserve an insulator.

 The steps involved domination a ELO mode are because follows: Make out Figure 3.

 Step 1: An oxide layer is grown on the ( 100 ) silicon wafer. Hard by, patterning is carried out on the oxide to demarcate the windows. The edges of the windows are oriented along the direction.

 Step 2: Cleaning of the wafer is carried out

 Step 3: Wafer is loaded into an epitaxial reactor and submitted to a lank - temperature hydrogen bake to empty the native oxide from the seeding windows.

 Step 4: Epitaxial growth is performed next, using e. g: SiHCl + H + HCL gas mixture.