Record multi-layer flexible PCB is 72m long

Record multi-layer flexible PCB is 72m long

Technology News |
By Nick Flaherty

Trackwise Designs has broken its own record for the world’s longest multi-layer flexible printed circuit (FPC) at 72m for an industrial application.

The FPC is constructed using a polyimide base laminate with copper elements, and finished with an organo-metallic layer to protect against oxidization. The final circuit has a copper thickness consistency of ±5µm from the patented ‘Improved Harness Technology’ (IHT). 

The reel-to-reel copper plating line allowed for defined and tightly controlled layer to layer resistance with as thin as possible thickness for the flex in the end product. Flexible printed circuitsd are increasingly used to replace complex wiring harnesses in automotive and aerospace designs.

“We are delighted to have smashed our previous 2020 record of 52m, which itself beat our 2019 record of 25m”, said Philip Johnston, CEO of Trackwise.  “Many applications are emerging for very long FPCs as customers become aware of the advantages offered by the technology. As well as the industrial sector, we are also winning business in the aerospace and automotive industries where our FPCs can help to increase battery life and EV range, for example, by reducing weight.  Another key market is medical where users look to replace existing microwires with a cheaper, more reliable, and flexible solutions.

“The versatility and cost effectiveness  of the roll to roll,  length-unlimited manufacturing capability means that we are delivering improved  connectivity solutions for new and innovative product designs all the time, even where the client does not need a product as extreme as 72m in length.”

Alongside IHT the company also produces advanced PCBs for Microwave and Radio Frequency (RF), Short Flex, Flex Rigid and Rigid Multilayer products.

The company has three sites, located in Tewkesbury, Stevenage (following the acquisition of Stevenage Circuits Ltd) and Stonehouse. It serves customers in Europe and North America.

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