• 专利标题:   Production of graphene used in manufacture of semiconductor devices, involves providing substrate of silicon carbide, applying polymer layer and/or sorbate onto substrate, and applying polymer layer and/or sorbate onto heated substrate.
  • 专利号:   EP3106432-A1, EP3106432-B1
  • 发明人:   KRUSKOPF M, PIERZ, PIERZ K
  • 专利权人:   BUNDESREPUBLIK DEUT VERTRETEN DURCH BUND
  • 国际专利分类:   C01B031/04, C01B032/188
  • 专利详细信息:   EP3106432-A1 21 Dec 2016 C01B-031/04 201704 Pages: 12 German
  • 申请详细信息:   EP3106432-A1 EP172720 18 Jun 2015
  • 优先权号:   EP172720

▎ 摘  要

NOVELTY - Production of graphene involves (i) providing a substrate (10) of silicon carbide, (ii) growing a graphene layer on the substrate, and (iii) applying a polymer layer and/or a sorbate (14) onto the substrate (10) before the growing the graphene layer, (iv) heating the substrate to temperature (t1) of at least 1100 degrees C in an inert gas atmosphere, preferably of 0.8-1.2 bar, (v) maintaining the temperature (t1) at 1300 degrees C for at least 8 minutes, and (vi) maintaining the substrate to a temperature (t2) of at least 1600 degrees C in the inert gas atmosphere. USE - Production of graphene used in manufacture of semiconductor devices. ADVANTAGE - The method enables production of graphene with excellent electronic properties and uniform charge carrier density distribution. DESCRIPTION OF DRAWING(S) - The drawings show a flowchart of production of graphene. Substrate (10) Substrate surface (12) Sorbate (14) Compressed gas (22) Process chamber (24)