There is a company called LumArray out of MIT has been trying to apply similar type of technology to their maskless litho systems for almost 10 years. And is selling working systems now. Prof. Fourkas' approach requires two high a light intensity it will be difficult to achieve high throughput. In addition, a similar SEM picture has been posted outside Prof. Fourkas' lab at UMD for about 10 years, how come it has just mad news?
OK, it turns out that the yellow cleanroom light will not expose this special photoresist. Here is what professor Fourkas says: "We do everything under yellow cleanroom lights, so it's not highly sensitive to it. We tend to prepare resists fresh and use them within a day or so, and so it's possible that there could be a longer-term effect if they aren't stored in the dark (like any other photoresist....)"
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Are the design challenges the same as with embedded systems, but with a little developer- and IT-skills added in? What do engineers need to know? Rick Merritt talks with two experts about the tools and best options for designing IoT devices in 2016. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.