Optics
Optics fabrication is exceedingly application specific and competition sensitive. An assortment of agents are used to hold optics in place during polishing, including pitches, waxes, rosins, and various synthetics. In general, projects involve balancing the nature and performance characteristics of the blocking compound and choosing an effective agent for deblocking or dewaxing. Our projects also include making sure that there is no interfering residue and that the desired surface characteristics are not compromised. Batch to batch variability in the substrate itself has to be recognized and managed. The cleaning challenges are not finished when the surface has been polished. Even small particles can ruin the performance of an optical device. Care must be taken during packaging, transfer, and assembly of the final product to assure that a clean surface does not become contaminated. Complex Assembly, Optimize Existing Processes The client incorporates optics into complex, sophisticated, high-value assemblies. In addition to optics, the product involves many sub-assemblies with diverse materials of construction that are fabricated with an assortment of process fluids. The goal of the project was to minimize soils that could interfere with optical performance. BFK Solutions evaluated existing processes including both aqueous and solvent-based processes and conducted a site visit that included both cleaning workshops and brainstorming systems. In some cases, it was deemed appropriate to modify the cleaning agent. Some of the cleaning equipment, while new, did not adequately contain the cleaning chemistries. The water purification system required refinement. We also assessed and interacted with suppliers of cleaning agent and cleaning equipment. We suggested improvements to process flow, to cleaning of incoming sub-assemblies, and to personnel practices both inside and outside of the cleanroom. Precision Optics The client was designing a new cleanroom and was evaluating processes for optics fabrication. We worked with the client in comparing equipment and chemistries for cleaning and deblocking. We reviewed the cleanroom design and process flow. We conducted extensive education/training programs. In addition to on-site evaluations of the current process design, we worked with cleaning agent and equipment suppliers to assure appropriate design, installation, and performance of the cleaning processes. 
Bring up the topic of optics cleaning; the response may include expletives. We help minimize the cursing. BFK Solutions has experience in successful cleaning, deblocking, surface characterization, and contamination control for precision optics production. 
Optics