According to an article on the website of the Association Connecting Electronics Industries (IPC), embedded capacitors now work well in lead-free processes. The article by IPC online editor Terry Costlow notes that as chips and boards continue evolving to higher densities and faster speeds, there’s a growing drive to save space by embedding capacitors within the circuit board layers. “In some ways, the shift to lead-free solders temporarily derailed this thrust by raising concerns that embedded capacitors might not withstand the high temperatures associated with RoHS-compliant solders,” says Costlow.
He notes that Joel Peiffer of 3M’s Electronic Solutions Division has presented data to help calm the fears of using embedded capacitors in lead-free processes, noting that “even materials that have not been around a long time are extremely reliable.”
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This discussion will examine what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.