Fr4 Ccl Copper Clad Laminate for Printed Circuit Board

Copper Clad Laminate, abbreviated to CCL, is a type of base material of PCBs. With glass fiber or wood pulp paper as reinforcing
material, a CCL is a type of product through lamination with copper clad on either one side or both sides of reinforcing material
after being soaked in resin.
According to different classification standards, CCLs can be classified into various categories:
• Based on CCL mechanical rigidity, we have rigid CCL(FR-4, CEM-1, etc.) and flex CCL. Rigid PCBs depend on rigid CCLs while
flex PCBs are on flex CCLs (flex-rigid PCBs are on both rigid CCLs and flex CCLs).
• Based on insulation material and structures, we have organic resin CCL (FR-4, CEM-3, etc.), metal-base CCL, ceramic-base CCL etc.
• Based on CCL thickness, we have standard thickness CCL and thin CCL. The former one requires at least 0.5mm thickness while
the latter can be thinner than 0.5mm. Copper foil thickness is excluded from CCL thickness.
• Based on reinforcing material types, we have glass fiber cloth base CCL (FR-4, FR-5), paper base CCL (XPC), compound CCL
(CEM-1, CEM-3).
• Based on applied insulation resin, we have epoxy resin CCL (FR-4, CEM-3) and Phenolic CCL (FR-1, XPC).
Founded in 2006, Shandong Senrong New Materials Co., LTD is located in "China Membrane Valley" -Shandong Zibo Dongyue Economic Development
Zone. She is a downstream deep-processing enterprise that extends Dongyue fluorine material industry chain. Senrong' s main products are PTFE
micro-porous membrane, PTFE fiber and PTFE engineering plastics. Senrong is a high-tech enterprise integrating scientific research, production,
management and foreign trade. Also Senrong is the governing unit of "Membrane Industry Association of China" and "China fluorine plastic processing
professional committee". Senrong owns the  industry qualification, Shandong enterprise technology center and ultra-filtration fiber technology
center, and has been awarded "good product Shandong", "Shandong famous trademark", "Shandong small and medium-sized enterprise development
new economy demonstration unit", "Shandong invisible champion cultivation enterprise", "Shandong industrialization and industrialization integration
standard implementation pilot unit", "Shandong specialized new small and medium-sized enterprise" "Shandong Province gazelle enterprise", "China
fluorine plastic processing cutting-edge growth enterprise" and other honorary titles. 15 years to sharpen the sword! At present, Senrong has developed
into Chinese PTFE downstream deep processing scale, the strength of first-class enterprise! Senrong is committed to the research and development
of downstream deep processing of fluorine materials. It has established industry university research cooperation platforms with Chinese Academy of
Sciences, Sichuan University, Tianjin University, Jiaotong University, Shandong Science&Technology University, Qingdao University and other universities,
developed a variety of high-end products, owned 35 patents and 15 inventions, and led the formulation of "PTFE Filament Yarn", "PTFE short staple fiber
" and "PTFE compounded membrane for face mask", total three Group Standards, which already filled Industrial gap!