• 专利标题:   Preparing graphene printed circuit board, comprises e.g. placing graphene film on one side or both sides of the dielectric substrate material, and clamping between two mirror steel plates, vacuuming, cooling, and removing.
  • 专利号:   CN111654975-A
  • 发明人:   HE D, SHEN J, SONG R
  • 专利权人:   WUHAN HANXI TECH CO LTD
  • 国际专利分类:   C01B032/194, H05K001/02, H05K003/00
  • 专利详细信息:   CN111654975-A 11 Sep 2020 H05K-003/00 202079 Pages: 8 Chinese
  • 申请详细信息:   CN111654975-A CN10342260 27 Apr 2020
  • 优先权号:   CN10342260

▎ 摘  要

NOVELTY - Preparing graphene printed circuit board (PCB), comprises (i) placing graphene film directly on one side or both sides of the dielectric substrate material to obtain semi-finished graphene PCB, and clamping the semi-finished graphene PCB between two mirror steel plates as samples to be pressed, and (ii) placing sample to be pressed in vacuum state under pressure of 4-10 MPa at room temperature for 10-30 minutes, then vacuuming for 30-60 minutes to heat up at 180-380 degrees C, and increasing pressure to 12-15 MPa, maintaining for 60-120 minutes, cooling to room temperature, and removing mirror steel plate to obtain final product. USE - The method is useful for preparing graphene PCB. ADVANTAGE - The method: is simple and suitable for industrial production; has low production cost; utilizes graphene and dielectric substrate, which are uniformly composited without air gaps; and does not required binder and metal addition during preparation process; The graphene PCB: has excellent electrical performance, high heat dissipation and corrosion resistance; has stable and uniform dielectric constant; and is light weight. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene PCB, obtained by above mentioned method.