A Flex Circuit or Flex PCB is a patterned arrangement of printed circuitry and components that utilizes flexible based material with or without flexible coverlay. These flexible electronic assemblies may be fabricated using the same components used for rigid printed circuit boards, but allowing the board to conform to a desired shape (flex) during its application.
Advantages of Flexible PCB:
Flexible PCB offers the OEM customers the following advantages: trace routing and current carrying capabilities as well as the SMT component populating options of a FR4 printed circuit board. Flexible PCB can be developed using polyester or polyimide (Kapton) as the base material depending on your interface requirements. Also, flexible PCB can be developed to be either rigid or flexible to reduce interconnects and incorporate tails directly into the circuit. Elcom Design strives to provide the customers with the ideal flexible PCB that best suits their applications.
Specification:
Surfaces | Immersion gold (recommended), immersion tin, Lead-free HAL |
Base Materials | Polyimide (0.025mm , 0.050mm) or Polyester (0.076mm, 0.127mm) |
Stiffener Material | FR-4, Mylar or Kapton |
Minimum Spacing Between Circuits | 3 mil |
Minimum Drill Size | 0.2mm |
Minimum Annual Ring | 4 mil |
Peel-Off Strength | 1.0N/mm |
PTH Wall Copper Thickness | 0.025mm |
Max. size | 200mm x 1000mm |
Solder-stop coating | Coverlay or flexible solder-stop |
Multilayer Flexible PCB
Flexible circuits are also used extensively in other applications and industries including:
· Communications · Consumer Electronics · Automotive · Medical | · Industrial · Aerospace · Military · Transportation |
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