January 15, 2013

Microstructured Gold - New Opportunities for Functional and Simply Beautiful Applications

According to the requirements of the final product, microworks can offer microstructures in two different types of electrodeposited gold. Pure gold, opaque to X-rays and highly biocompatible, is mainly suitable for medical applications such as fiducial X-ray markers, corrosion resistance or ultra-high vacuum applications. Hard gold, containing 98% gold and less than 2% Cadmium, is a special alloy for increased hardness (200Hv instead of 80Hv), required e.g. in the watch industry.

microworks' technology now allows to create LIGA structures with 2µm features over a height of 250µm. Aspect ratios of 100 can be reached, important e.g. for the fabrication of absorption gratings for X-ray phase contrast imaging. Combined with the complete 2D-freedom offered by LIGA technology, there is a large variety of applications: from highly functional and simply beautiful watch parts to absorption gratings and X-ray markers.