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Jan/Feb 2012  
News/Features: Last Word

Dr. Eric W. Forsythe, staff physicist for the Army Research Laboratory, Adelphi, Md., agreed to discuss the development of flexible electronics and flexible displays with MICROmanufacturing. Forsythe is the team leader for display technologies and is an associate program manager for the Army’s Flexible Display Center. One of the Army’s goals is to develop electronics for use in advanced communications devices with flexible displays. One of the main challenges is to increase the performance levels of flexible electronics to more closely match those of traditional printed circuit boards.

Academia and industry both face the challenge of how to transfer technology from research to commercial production. Passing technology from university to industry or from one industrial research group to another involves the transference of skills, knowledge of manufacturing practices, patents and, often, moving operations to a different facility.

Somewhere, Dr. Frankenstein must be jealous. A research institute in Boston is replicating major human organs on microfluidic devices and linking them in a complex, biomimetic system. Rather than being run out of town by villagers with torches and pitchforks, The Wyss Institute for Biologically Inspired Engineering at Harvard University is getting grants and working with pharmaceutical companies on proof-of-concept studies.

Dr. Eric W. Forsythe, staff physicist for the Army Research Laboratory, Adelphi, Md., agreed to discuss the development of flexible electronics and flexible displays with MICROmanufacturing. Forsythe is the team leader for display technologies and is an associate program manager for the Army’s Flexible Display Center. One of the Army’s goals is to develop electronics for use in advanced communications devices with flexible displays. One of the main challenges is to increase the performance levels of flexible electronics to more closely match those of traditional printed circuit boards.

Over the past several decades, new and powerful capabilities that allow manufacturing at the micro and nano scales have emerged. These developments have been driven largely by the microelectronics revolution and fueled by major scientific advances in materials science, solid-state physics, optics and computation—to name a few.

The versatile and amazing silicon devices that are microelectromechanical systems (MEMS), such as microphones and inertial, light and pressure sensors, have already found their way into a multitude of consumer electronics devices and automobiles, among other products. As exemplified by the proliferation of iPhone apps that utilize motion sensing, there seems to be no end to what one can do with MEMS devices, from the sublime (lifesaving automotive stability control systems) to the ridiculous (the iBeer app).

The growing market for low-cost, portable systems with complex functionality has opened up important new avenues for miniaturization technology. Unlike surface-micromachined and monolithically fabricated MEMS devices of the past, newer microsystems have grown significantly in design complexity and material heterogeneity. To address these issues, alternative production technologies are being investigated.

Manufacturing is a rapidly changing industry and, to remain competitive, manufacturers must stay on top of many different technologies. Here, we examine several processes manufacturers of microparts may be hearing more about in the near term. Not all are new and some are currently being applied, but all will likely make an important impact on micromanufacturing in the coming years.

The following is an interview with Stefan Dimov, Ph.D., professor of advanced manufacturing technology and research director of the Manufacturing Engineering Centre at Cardiff (Wales) University. He is also head of MEC’s Micro and Nano Manufacturing Program. Dimov joined the MEC in 1993 and has been a principal and co-investigator in more than 50 R&D projects. He is the author of more than 150 papers and the co-author of two books.

As companies move into micromanufacturing, they often fi nd a lack of specifictraining resources. Th ere are at least 10 key areas where more training resources are urgently needed (see sidebar). Given the space constraints, I’ll limit my discussion to an often-overlooked area: documenting shop procedures.