From their website:
Ultra Clean Technology succeeds in meeting customers’ requirements through a combination of careful product analysis, specialized design services and high precision manufacturing. The exceptionally skilled technical and engineering staff leads the industry in the design of complex sub-assemblies, critical modules and gas & liquid delivery systems. UCT provides an increasingly wide variety of services, ranging from redesigning and upgrading existing systems to the creation of completely new designs — all designed and built to meet customers’ unique process specifications. UCT forges a strong, relationship with their customers beginning with the design of every project. UCT design teams are highly integrated with the customer design team, and in many cases UCT staff are physically located at the OEM site. To ensure the final result meets or exceeds end-user process specifications, the customer is involved at every stage of the design process.
From start to finish, the specific needs of the customer are UCT’s first priority. After manufacturing and exhaustive testing has been completed, a comprehensive technical document is provided to support all functionality requirements and system operation. This documentation is included with every product shipped. Ultra Clean Technology is committed to understanding their customers’ unique process requirements and to building superior gas and liquid delivery systems, process chambers, frame assemblies, critical modules, high precision machined components and other specialized products.