Chemical Sensors and Patterned Electrodes Additive manufacturing (AM) is frequently used to create small-scale patterned electrodes for scientific micro-electromechanical systems (MEMS). Platypus Technologies employs this approach to generate patterned gold thin films on glass, creating these via e-beam metal evaporation using a titanium adhesion layer. This process helps improve the film’s mechanical stability. The gold films of patterned electrodes exhibit a considerable level of purity (99.999%) as well as low surface roughness that is generally down to the nanometer-scale. Image Credit: Platypus Technologies, LLC These particular patterned electrodes are manufactured without organic solvents or photoresist, both of which have the potential to contaminate the gold’s surface.