Advanced Photonix, Inc. (API) is engaged in the development and manufacture of optoelectronic devices and value-added sub-systems and systems. The Company serves a variety of global original equipment manufacturers (OEMs) in a variety of industries. API supports its customers from the initial concept and design phase of the product, through testing to full-scale production. API has two manufacturing facilities located in Camarillo, California and Ann Arbor, Michigan. API is a supplier of optoelectronic semiconductors packaged into high-speed optical receivers, custom optoelectronic subsystems and Terahertz instrumentation, serving a variety of global OEM markets. API supports the customer from the initial concept and design of the semiconductor, hybridization of support electronics, packaging and signal conditioning or processing from prototype through full-scale production and validation testing. On March 1, 2013, it acquired certain assets of Silonex, Inc.