How it started
1978–2000
Voestalpine AG decides to expand its product and services range during the late 1970s and chooses the semiconductor industry. Due to voestalpine looking for a joint venture partner the first cooperation with American Microsystems, Inc. (AMI), later AMI Semiconductor, now part of onsemi) was formed.
In 1981, this joint venture resulted in the American Micro Systems Incorporated-Austria GmbH (AMI-A). AMI owned 51% and voestalpine AG 49%. The Schloss Premstätten in Unterpremstätten (Styria, Austria) was chosen as headquarters.
In 1983, the Austrian chancellor Fred Sinowatz officially opened the 100 mm wafer factory which started its production with 300 employees.
1987 was the year when voestalpine AG took over full ownership. In September of the same year the name was changed from AMI-A to AMS (Austria Mikro Systeme International GmbH). Furthermore, there were new sales branches established in California and Germany.
In 1991, ams became one of the 25 fastest growing businesses in Europe. ams was chosen to be the "top Fab of 1992".
From Wikipedia’s article on ams OSRAM AG, shared under CC BY-SA 4.0.2