Of all the devices our clients call on us to make, ultra-miniature flex circuits are among the most challenging. Success often requires spending considerable upfront time with customers to gain a full understanding of their specific requirements as well as to identify risk factors that either they or we may help mitigate before committing to full-scale production. It is not always clear during our initial conversations whether the flex circuit the customer has in mind can even be made - or, if it can be made, whether it can be produced at sufficiently high yield or at low enough cost to be worth the required investment.