Editing MOS Technology (section)

===GMT Microelectronics===
After Commodore's [[bankruptcy]] in 1994, Commodore Semiconductor Group, MOS's successor, was bought by its former management for about {{US$|long=no|4.3 million}}, plus an additional {{US$|long=no|1 million}} to cover miscellaneous expenses including a [[United States Environmental Protection Agency]] (EPA) license. Dennis Peasenell became CEO. In December 1994, the EPA entered into a Prospective Purchase Agreement (limiting the company's liability in exchange for sharing the costs of cleanup) with GMT Microelectronics. In 1994, the company, operating under the name '''GMT Microelectronics''' (''Great Mixed-signal Technologies''), reopened MOS Technology's original, circa-1970 [[1 µm process|one-micrometre]] process fab ([[semiconductor fabrication plant]]) in [[Audubon, Pennsylvania|Audubon]], [[Montgomery County, Pennsylvania|Montgomery County]], Pennsylvania that Commodore had closed in 1993.<ref name="CSG EPA">{{cite web |url=https://semspub.epa.gov/work/03/2218465.pdf |title=THIRD FIVE-YEAR REVIEW REPORT For Commodore Semiconductor Group Superfund Site |publisher=United States Environmental Protection Agency Region III |url-status=dead |date=August 2015 |archive-url=https://web.archive.org/web/20200521044458/https://semspub.epa.gov/work/03/2218465.pdf |archive-date=2020-05-21}}</ref>

The plant had been on the EPA's National Priorities List of [[hazardous waste]] sites since October 4, 1989.<ref>{{cite web |url=https://www.karlstechnology.com/commodore/commodore-superfund-site.html |title=Commodore Computers Superfund Site Information |publisher=Environmental Protection Agency |date=April 2004|access-date=May 23, 2019}}</ref><ref>{{Cite web|date=August 2002|title=Commodore Semiconductor Group|url=https://semspub.epa.gov/work/HQ/182397.pdf|access-date=2020-08-11|website=epa.org}}</ref> This was due to a 1978 leak of [[trichloroethylene]] (TCE) from an underground 250-gallon concrete storage tank used by [[Commodore Business Machines]] in the semiconductor cleaning process.<ref name="CSG EPA" /> Leaks from the tank had caused the local groundwater to become contaminated with TCE and other [[volatile organic compounds]] (VOCs) in 1978.<ref name="CSG EPA" /> By 1999 GMT Microelectronics had {{US$|long=no|21 million}} in revenues and 183 employees working on the site.{{citation needed|date=May 2019}} Announced in March 1999, GMT would have provided foundry services based on TelCom's [[Bipolar junction transistor|Bipolar]] and SiCr (silicon chromium) Thin Film Resistor processes and would have been a licensed alternate source for TelCom's Bipolar based products,<ref>{{cite web |url=https://www.eetimes.com/document.asp?doc_id=1121054# |title= GMT signs bi-polar foundry deal with TelCom |publisher=Electronic Engineering Times |access-date=May 23, 2019}}</ref> with production running at 10,000 5-inch [[semiconductor wafers]] per month, producing [[CMOS]], BiCMOS, NMOS, bipolar and SOI ([[silicon on insulator]]) devices. In 2000, GMT Microelectronics discontinued operations and abandoned all of its assets at the Commodore Semiconductor Group [[superfund]] site.<ref name="CSG EPA" /> <!-- However, in 2001 the EPA shut the plant down due to the leaking of their underground hazardous waste storage tanks. GMT Microelectronics ceased operations and was liquidated.{{citation needed|date=December 2017}} {{Commenting out two sentences May 28, 2019 - this sentence has been marked as citation needed for a year and a half and there's contradictory information that says GMT abandoned the location but persisted as a company until they were acquired by someone else and this article isn't about GMT Microelectronics}} -->