When to Use Rigid and When to Use Flexible
Rigid PCBs typically cost less than flex circuits. I say “typically” because when considering the total cost of ownership there are some applications that, when using flexible PCBs, may be less expensive compared to using rigid PCBs. To get a true and accurate understanding of the total cost of ownership, you first need to appreciate the fact that flex circuits may eliminate the need for components such as connectors, wire harnesses, and other circuit boards. By removing these components from a design, material cost, labor and assembly cost, and scrap cost are all reduced.
Many electronic devices (laptop and desktop computers, audio keyboards, solid-state drives (SSDs), flat-screen TVs and monitors, children’s toys, and various electronic gadgets) employ rigid PCBs instead of flexible PCBs. However, flex circuits may be found in ultra-compact and/or high-performance devices, including GPS units, tablets, smart phones, cameras, and wearables.
Greater sophistication is not the only reason to use flex circuits; low-tech applications (such as under-the-counter LED lights, see figure below) may utilize flex circuit technology, in some cases because it makes installation much easier.
Product Description:
Article | Description | Capability | |
Sercive | PCB and SMT assembly with one-stop service | ||
Material | Laminate materials | FR4, high TG FR4, high frequency, alum, FPC | |
Board cutting | Number of layers | 1-48 | |
Min.thickness for inner layers (Cu thickness are excluded) | 0.003”(0.07mm) | ||
Board thickness | Standard | (0.1-4mm±10%) | |
Min. | Single/Double:0.008±0.004” | ||
4layer:0.01±0.008” | |||
8layer:0.01±0.008” | |||
Bow and twist | 7/1000 | ||
Copper weight | Outer Cu weight | 0.5-4 0z | |
Inner Cu weight | 0.5-3 0z | ||
Drilling | Min size | 0.0078”(0.2mm) | |
Drill deviation | ±0.002″(0.05mm) | ||
PTH hole tolerance | ±0.002″(0.005mm) | ||
NPTH hole tolerance | ±0.002″(0.005mm) | ||
Solder mask
| Color | Green,white,black,red,blue… | |
Min solder mask clearanace | 0.003″(0.07mm) | ||
Thickness | (0.012*0.017mm) | ||
Silkscreen | Color | white,black,yellow,blue… | |
Min size | 0.006″(0.15mm) | ||
E-test | Function Test | 100% Functional test | |
PCBA Testing | X-ray,AOI Test,Functional test | ||
Pcb assembly | one-stop service electronic manufacxturer service | ||
Component sourcing | Yes | ||
Certificate | IATF16949, ISO13485, ISO9001 | ||
Delivery time: | PCB | 3-12days | |
PCBA | 8-20days | ||
Tolerance of pcb | ±5% | ||
Max size of finish board | 450*450mm | ||
MOQ | NO MOQ (1pcs) | ||
Surface Finish | HASL,ENIG,immersion silver,immersion tin,OSP… | ||
PCB outline | Square,circle,irregular(with jigs) | ||
package | QFN,BGA,SSOP,PLCC,LGA | ||
Sub-assembly | Plastic,metal,screen |
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