• 专利标题:   Pellicle film for pellicle used as dust guard in photolithography during manufacture of e.g. semiconductor device, has main layer made of single crystal silicon, and graphene provided on both sides of main layer.
  • 专利号:   US2020192216-A1, EP3671343-A1, JP2020098227-A, KR2020074864-A, CN111324005-A
  • 发明人:   YANASE Y, YANASE M
  • 专利权人:   SHINETSU CHEM CO LTD, SHINETSU CHEM IND CO LTD, SHINETSU CHEM CO LTD
  • 国际专利分类:   G03F001/64, G03F007/20, H01L021/027, G03F001/62, C01B032/186, C01B032/194, G03F001/00
  • 专利详细信息:   US2020192216-A1 18 Jun 2020 G03F-001/64 202050 Pages: 8 English
  • 申请详细信息:   US2020192216-A1 US715337 16 Dec 2019
  • 优先权号:   JP235239

▎ 摘  要

NOVELTY - The pellicle film is stretched on upper end face of a pellicle frame with a pressure-sensitive adhesive agent interposed between the pellicle film and pellicle frame. The pellicle film comprises a main layer made of single crystal silicon. A graphene (10) is provided on both sides of the main layer. USE - Pellicle film for pellicle (claimed) used as dust guard in photolithography during manufacture of semiconductor device, integrated circuit (IC) package, printed board, LCD and organic electroluminescence (EL) display. ADVANTAGE - The extreme UV (EUV) transmittance is increased and sufficient strength is provided even without the need for arranging a support frame. The mechanical strength is improved without damaging the pellicle film during the preparation and use of the pellicle, by providing graphene on both sides. The foreign matters are prevented from passing through the ventilation portion by providing filter to the pellicle frame. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the pellicle film. Graphene (10) Substrate (20) Thermal release sheet (30)