Flexible PCBs are made of flexible material with or without protective cover. A flexible circuit has a multilayer structure , including cover film, cover film adhesive, conductor cooper foil, adhesive layer of laminate, base film. It is possible to use material without adhesive layer in some cases.
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 | |
The main purpose of flexible PCB exploitation is to use it as connector, with a random arrangement of conductors between different parts of electronic devices, made on the base of rigid PCBs, as a cable connection substitute. Furthermore, flexible PCBs afford to produce inductors, antennas and etc. Flexible PCB is an opportunity to create unique constructions, which allow to solve the problem of inter-system connection and montage, providing flexibility of this system. The technology of flexible PCB offers large scale of vital decisions, among which the most promising is the creation of spatial patterns of interconnections.
High quality immersion gold Flexible PCB
High quality immersion gold Flexible PCB
