RCY ELECTRONIC :Rigid-flex PCB new product release ( III )
1 Product picture display
Application：control main board/ industrial control
Laye count : 6L
Copper Thickness: 1/2OZ
Min. hole size: Laser via 0.1mm
Surface finish: ENIG
process difficulties: HDI，POFV process, multi-zone FPC opening technical
3 Manufacturing flow:
FCCL Cutting->Drilling->Inner circuit->Coverlay->Brown Oxide->Bonding->laminating ->Laser drilling->Hole PTH
Outer circuit->Pattern PTH->Etching->solder mask->Mechanical cover-opening->Immersion gold->FPC UV lasering->E-TEST->Outline->FQC
4 Process difficulties:
1) Thick copper (copper thickness 1OZ) NF PP pressing process to solve the problem of pressing thick copper filling.
What’s more, we used dispensing process, need to solve high temperature assembly, and soft and hard board bending softness.
In addition, we offered material selection to use high reliability 3M AB glue to produce
2) Hard and hard plate HDI hole filling process, resin plug hole POFV process, soft and hard board due to uneven surface structure.
Besides, there is need to solve the selection of laser blind hole processing, DLD or conform mask. And also , we used resin plug brush reduction process.
3) Moreover, we applied multiple sets of differential, single-ended impedance process design. However, this board has different layers of soft board and hard board impedance design.
4) Additional, we took multiple opening design to optimized opening method and improved opening efficiency and yield
5 Product application :
The industrial intelligent control panel is applied to high-precision sensors and feeds the collected data back to the instrument.
In addition,multi-zone flexible board design for three-dimensional assembly of products
In the meanwhile, SHENZHEN RENCHUANG YI ELECTRONIC CO.,LTD ( Short as RCY ELECTRONIC)
is a professional and trusted pcb manufacturer in Shenzhen, China, specialises in multilayer pcb, HDI pcb, and rigid-flex pcb