There are several types of metalization that are of interest to systems designers. Optics can be metalized for their optical properties (eg. mirrors), for their electrical properties (buss-bars, traces and EMI gridding) or for their mechanical properties (solderability and sealing). Reynard's metalized coatings have excellent adhesion to the optical surface and have properties that can be tuned to your application.
For solderability, Reynard has two proven, high-performing metallization designs; one based on a nickel (Ni) barrier layer and the other on a platinum (Pt) barrier layer. The barrier layer performance is critical to achieve a good soldering performance, to protect the substrate against high-temperature during soldering, and to eliminate the collection of moisture during the soldering process. The selection of the barrier level depends on the environmental conditions, performance needs, and cost. These coatings are compatible with a gettering process. With our proprietary surface implantation process, we have shown to exceed well over 8000psi tensile strength on several glass and crystal substrates. For some substrate materials binding layers are used to enhance the substrate-to-metallization performance. The design of this binding layer is tuned based on the substrate material.