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4 Layer Flex PCB


Flexible printed circuit boards are now prominently used in the electronics industry. Being one of the leading manufacturers of these circuit boards, Rigiflex provides 4 layer flex printed circuit boards. These circuit boards are being used in a variety of industrial applications, including power, medical devices, automobile components, and industrial control equipment.

These printed circuit boards have 4 conductive layers, and made from polyimide, rather than FR4. Being thermally stable material, polyimide allows it withstand extreme heat when used in high-temperature applications. The flexibility offered by polyimide makes surface mounting easier than hard boards, thereby helping in streamlining the design. This polyimide also helps in creating intricate designs, which are otherwise impossible with rigid printed circuit boards. Also, this material helps in reducing the overall weight of the PCB.

Rigiflex provides these 6 layer printed circuit boards in various specifications such as component spacing/width 4/3 MIL, finish thickness 0.2mm, and board thicknesses 0.5mm~3.0mm (0.02″~0.12″), and maximum board size 18″x24″. Although immersion gold is the most popular choice for the surface finishing, we also provide options such as HASL and OSP. All these surface finishes help in improving the performance of these boards under stressful conditions.

4 Layer Flex PCB
Model: flex board-4L
Layers: 4
Material: Polyimide
Surface treatment: immersion gold
Width/space: 4/3mil
Finish thickness: 0.2mm
Min Hot: 0.3mm

Copper thickness is one of the important aspects of the PCB design. The current carrying capacity of the PCB entirely depends on this thickness. This is why we provide a wide range of copper thicknesses to choose from. This 6 layer PCB can be availed in copper thicknesses ranging from 0.5 OZ, 1.0 OZ, 2.0 OZ, 3.0 OZ, up to 6 OZ. The outline processing is performed using V-cut, punching, and routing. The boards are available in popular solder mask colors including blue, green, white, and red. We can also provide the boards with a specialized photo-imageable solder resist – Taiyo PSR4000 white. The PCBs can be availed in any of these silkscreen colors – white and black.

Rigiflex has gained immense popularity in developing flexible circuit boards with thinnest substrates. These substrates have helped reduce the weight, as well as improved the heat dissipation capacity of these boards. Also, we can create PCBs with low interconnection points, which help reduce the chances of system failure, and improves its reliability. Our vast industry experience and accessibility to advanced equipment in our facility enables us to create complex circuit boards in shortest turnaround times, with extremely thin substrates. These thin substrates contribute to reduced package sizes and weights – which is a major advantage in the electronics industry.

OEM Custom Service
Board Thickness 0.5mm~3.0mm (0.02″~0.12″)
Copper thickness: 0.5 OZ, 1.0 OZ, 2.0 OZ, 3.0 OZ, up to 6 OZ
Outline: Routing, punching, V-Cut
Solder mask: White/Black/Blue/Green/Red, Taiyo PSR4000 white
Legend/Silkscreen Color: Black/White
Surface finishing: Immersion Gold, HASL, OSP
Max Panel size: 18″*24″
Packing: Vacuum/Plastic bag
Layer: 1 – 20 layers

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