Printed Circuit Board Assembly Service


Acme PCB assembly is located in Carson, California. 16,000 square feet is not a big contract manufacturer, but we have the best equipment (Fuji assembly line) to maintain our good quality with lower assembly cost. We are more flexible to meet customer’s requirement. Lead-Free (Pb-Free) soldering ready since Year 2005. RoHS compliant (Lead-Free) assembly for Tin Whiskers.

Printed Circuit Board Assembly Service


JJS Stresses Need for Baking Prior to flexible Printed Circuit Assembly

Britain-based JJS Manufacturing is an EMS corporation that centers on end-to-end procurement, manufacturing (Electronic Board assembly, box build, cabinet, electro-mechanical) and supply chain solutions. The company supplies sophisticated, highly configurable, low-to-medium-volume industrial electronics products across lots of industrial sectors consisting of industrial automation, process control, test and measurement, and lab technology.

Editor Stephen Las Marias spoke with Russell Poppe, director of technology, about the difficulties of dealing with flexible circuit assemblies and provides means to address them.

Stephen Las Marias: From your experience, what are the major difficulties in flexible circuit assembly?

Russell Poppe: From an assembly angle, baking the flexible circuits in advance of manufacturing assembly is a must because they can be vulnerable to delamination. Then again, baking any Electronic Board before manufacturing is best practice and something we constantly carry out at JJS.

One of the biggest difficulties in flexible circuit assembly is to ensure the circuits stay flat, in particular throughout the printing and pick-and-place steps. The parts of the circuit in need of SMT placement need to have an FR-4 stiffener designed in underneath; but it is also essential to work with the Electronic Board supplier at the start. Getting the panelization right is vital so that the boards don’t bend when the parts are placed or when they move across reflow. Panel design generally is a challenge as flexible circuits in many cases are odd shapes! It may additionally be necessary to have a tailored carrier or pallet to hold the flexible circuits in place throughout the process; however, these carry extra costs-typically a few hundred pounds each.

Learn more from JJS Manufacturing Russell Poppe

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