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JJS Stresses Requirement for Baking Prior to flexible Printed Circuit Assembly
UK-based JJS Manufacturing is an EMS firm which centers on end-to-end purchasing, manufacture (PCB assembly, box build, cabinet, electro-mechanical) and supply chain solutions. The company supplies intricate, greatly configurable, low-to-medium-volume industrial electronics products across many different markets for instance, industrial automation, process control, test and measurement, and laboratory technology.
Editor Stephen Las Marias talked with Russell Poppe, director of technology, concerning the complications of coping with flexible circuit assemblies and provides methods to deal with them.
Stephen Las Marias: From your experience, what are the principal complications in flexible circuit assembly?
Russell Poppe: From an assembly angle, baking the flexible circuits just before manufacturing assembly is crucial because they can be susceptible to delamination. Nevertheless, baking any PCB in advance of manufacturing is most effective practice and some thing we always do at JJS.
One of the primary complications in flexible circuit assembly is making certain the circuits stay flat, specifically throughout the printing and pick-and-place steps. The components of the circuit which require SMT placement must have an FR-4 stiffener designed in underneath; but it’s also important to work with the PCB provider at first. Getting the panelization right is essential so that the boards don’t bend when the components are put or when they undergo reflow. Panel design is often a headache as flexible circuits are often odd shapes! It might additionally be recommended to have a tailored carrier or pallet to hold the flexible circuits in place during the entire process; having said that, these carry extra costs-generally some hundred pounds each.
Discover for yourself from JJS Manufacturing Russell Poppe smt.iconnect007.com/index.php/article/103844/jjs-stresses-need-for-baking-prior-to-flex-circuit-assembly/103847/?skin=smt