×

Semiconductor device and manufacturing method with improved epitaxial quality of III-V compound on silicon surfaces

  • US 8,183,134 B2
  • Filed: 01/19/2011
  • Issued: 05/22/2012
  • Est. Priority Date: 10/19/2010
  • Status: Active Grant
First Claim
Patent Images

1. A method of forming a device, the method comprising:

  • providing a silicon substrate, wherein a major surface of the silicon substrate is a Si(001) surface, wherein the silicon substrate has insulation regions extending from the major surface into the silicon substrate, and wherein a portion of the silicon substrate is between opposite sidewalls of the insulation regions;

    etching the portion of the silicon substrate to form a trench;

    epitaxially growing a III-V compound semiconductor region in the trench;

    depositing a capping layer on the silicon substrate to cover the III-V compound semiconductor region; and

    annealing the silicon substrate after the depositing operation to reduce crystalline defects in the III-V compound semiconductor region.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×