Printing Sensors
3D Printing Can Manufacture Customized Sensors
KTH Royal Institute of Technology (Sweden)
David Callahan, September 28, 2022
A new three-dimensional (3D) printing method could cost-effectively fabricate insect-sized electronic sensors for robots and medical devices. Scientists at Sweden's KTH Royal Institute of Technology led the technique's development to overcome the limits of conventional microelectromechanical system (MEMS) manufacturing. The researchers enhanced two-photon polymerization, a process that can generate high-resolution objects hundreds of nanometers in size, to sense functionality. The method forms transducing elements via stencil-like shadow-masking. KTH's Frank Niklaus said the approach can produce about a dozen customized MEMS accelerometers in a few hours using commercial manufacturing tools. "The new capabilities offered by 3D-printed MEMS could result in a new paradigm in MEMS and sensor manufacturing," said Niklaus. ... '
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