Star Micronics began manufacturing precision parts in 1947. Since then, it has grown to become an internationally respected manufacturer of precision electronic equipment and machine tools. Extensive technical expertise, amassed from years of experience in precision technology, led to the creation of a wide array of high quality products ranging from receipt printers and computer printers, to audio products, to high precision machine tools and, finally, acceleration sensors.

Silicon Microstructures (SMI) was founded in 1991 as a commercial source of high-performance silicon pressure sensors (specially low pressure sensors) and accelerometers. Its first product was a silicon sensor for very low-pressure applications that is still about 20 times more sensitive than competing parts. Throughout its history, SMI has applied high volume microstructure manufacturing processes and process control to a wide variety of sensors. As a result, SMI is a preferred low cost supplier that satisfies quality and delivery requirements for a wide variety of OEM customers.