• 专利标题:   Transfer of epitaxy-enabled substrate in manufacture of article, involves performing selective-area epitaxy operation(s) of single crystalline material on mask-patterned substrate and create repeating units, epitaxially growing transfer substrate, and separating transfer substrate.
  • 专利号:   WO2022104074-A1
  • 发明人:   WANG J, XIE Y, AMANO H
  • 专利权人:   UNIV CALIFORNIA, UNIV TOKAI NAT CORP NAT HIGHER EDUCATION
  • 国际专利分类:   H01L021/00, H01L021/332, H01L027/15, H01L033/08, H01L033/20
  • 专利详细信息:   WO2022104074-A1 19 May 2022 H01L-021/00 202246 Pages: 48 English
  • 申请详细信息:   WO2022104074-A1 WOUS059161 12 Nov 2021
  • 优先权号:   US113388P

▎ 摘  要

NOVELTY - Transfer of epitaxy-enabled substrate involves performing several selective-area epitaxy operations of a single crystalline material on a mask-patterned substrate (12), in which each of several selective-area epitaxy operations create repeating units (20) along a surface of the mask-patterned substrate containing discrete doping profiles on the mask-patterned substrate, epitaxially growing a transfer substrate on the repeating units, and separating the transfer substrate from the mask-patterned substrate. The repeating units comprise discrete doping profiles on the mask-patterned substrate transferred to the transfer substrate. USE - Transfer of epitaxy-enabled substrate in manufacture of article (claimed). Uses include but are not limited to gallium-nitride-based MOSFET, vertical junction field effect transistor, junction barrier Schottky diodes, super-junction MOSFETs, transistors, power electronics, sensors, p-gallium nitride. ADVANTAGE - The method enables transferring of epitaxy-enabled substrate with excellent voltage blocking capability and current-handling capability. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the article. DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional schematic view of ELOG of an array of gallium nitride islands via MOVPE with in-situ doping operations. Additional mask (10) Substrate (12) Repeating unit (20)