Single Layer & Double Sided Flex
Just because they only have one or two layers does not mean they have to be simple or low-tech. These devices have some of the most complex shapes and fit perfectly where almost nothing else can. Explore some of the amazing things that can be accomplished with single and double sided flex.
Small, thin and lightweight
Working with ultra-thin substrates requires tools that are not commonly found in every PCB shop but once you have those tools at your disposal you can achieve results that are hard to match. Think of a finished circuit board that is just .002” (50 micron) thick, think of .001” (25 um) diameter holes, think of delivering dozens of high speed signals within a package that weighs less than 2 grams. We build boards like that every day at Circuits.
One and two layer flex boards are ideally suited for dynamic motion. From a device that requires only a few hundred cycles over its lifetime like a hinged panel that opens only for maintenance or calibration, to a robotic arm that may require millions of repetitive motion cycles, single and double sided flex are the solution. There are rules to be followed for a reliable dynamic design, let us help you avoid the hidden obstacles in yours.
Flying leads are one of the unique benefits that can be used on single and double sided flex board designs. The circuit traces become the interconnect to the next board, no connectors required. Just unsupported copper traces that will be soldered directly to the next substrate whether it is organic or ceramic. No discontinuity, the result is a perfectly clean analog signal.
Stiffeners, Heatsinks, Shields and Heaters
A multitude of things can be added to a “simple” single or double sided flexes to enhance form, fit and function. Mechanical stiffeners bonded to one or both sides can be designed to match virtually any thickness requirement, and bonding of metal heatsinks is just as easy. Sections of the circuit board can be designed to work as a heater or easily shielded from electro-magnetic interference without adding another copper layer. What will your design require? There is a good chance that we have seen the right (and the wrong) way of answering those questions.