MEMC is a global leader in the manufacture and sale of wafers and related intermediate products to the semiconductor and solar industries. MEMC has been a pioneer in the design and development of wafer technologies since 1959. With R&D and manufacturing facilities in the U.S., Europe and Asia, MEMC enables the next generation of high performance semiconductor devices and solar cells.

MEMC Locations
MEMC Timeline
MEMC Firsts
MEMC in the News

Click here for a PDF of the information displayed on this page.

The wafers manufactured and produced by MEMC are literally the foundation upon which virtually all of the world’s semiconductors and solar cells are built. Those products, in turn, are the building blocks for the $1 trillion electronics market (cell phones, computers, PDAs, CD/DVD players, satellite and automotive electronics, etc.) and the $18 billion solar cell/module market (rooftop, solar farms, consumer lighting, etc.).

1959	Monsanto Electronic Materials Company formed
1962	CZ silicon crystal process developed
1965	MEMC developed polishing process for silicon wafers
1966	First epi reactors installed at MEMC
1966	Scientists at MEMC begin developing zero-dislocation crystal
1975	First commercial production of 100mm wafers
1982	MEMC pioneers epi wafers for CMOS applications
1984	Commercialized 200mm wafers
1991	300mm wafers developed
1995	MEMC initial public offering on the New York Stock Exchange under the symbol WFR
1998	MEMC developed agglomerated defect-free Perfect Silicon
1999	Advanced-generation 200mm DSP wafers developed
2000	MEMC introduced defect-free engineered products MDZ™ and Optia™
2002	Significant 300mm expansion
2003	Expanded New Materials R&D group, and introduced next-generation 300mm Perfect Silicon
2004	Crossed over $1B revenue mark; acquired Taisil, Taiwan manufacturing facility
2005	First 300mm production in Taiwan
2007	Started shipment of 156mm wafers; MEMC added to S&P 500

Broad Product Portfolio and Intellectual Property Portfolio

MEMC’s product portfolio is currently the broadest in the company’s history. MEMC holds over 600 worldwide patents on silicon products and processes and has over 300 worldwide patent applications on file, including patents on MDZ® and OPTIA™.

Rich Heritage

Founded in 1959, MEMC was the first merchant manufacturer of wafers and was first to produce...

• Chemical-Mechanical Polishing of Silicon -- MEMC was the first to develop chemical-mechanical polishing for the semiconductor industry in 1962.

• Commercial epitaxial wafers -- MEMC pioneered epi wafers for CMOS applications in 1982.

• 200mm wafers -- MEMC was the first to commercialize 200mm wafers in the mid-to-late 1980s, in partnership with IBM.

• Granular Polysilicon -- MEMC developed the first process using granular polysilicon in 1991.

• Magic Denuded Zone® (MDZ®) -- MEMC developed this breakthrough thermal processing technique in the mid-1990s and was granted the first patent on this technology in 1999.

• PerfectSilicon™ -- MEMC developed the world's first 100% defect-free silicon wafer in the mid-1990s and was granted the first patent on this technology in 1999. This is now marketed as the OPTIA™ product line.

MEMC continues to remain at the forefront of technology innovation with advanced manufacturing capabilities and a suite of process technologies including alternate materials such as Silicon On Insulator (SOI).

Global Manufacturing

Manufacturing Facilities St. Peters, Missouri Sherman, Texas Pasadena, Texas Merano, Italy Novara, Italy Kuala Lumpur, Malaysia Hsinchu, Taiwan Chonan, South Korea Utsunomiya, Japan

Sales Offices Hillsboro, Oregon St. Peters, Missouri Sherman, Texas Paris, France Munich, Germany Novara, Italy Singapore Kuala Lumpur, Malaysia Shanghai, China Hsinchu, Taiwan Seoul, Korea Tokyo, Japan

Click here for a PDF of the information displayed on this page.

MEMC Electronic Materials, Inc.
501 Pearl Drive (City of O’Fallon)
P.O. Box 8
St. Peters, Missouri. 63376
636.474.5000

Contact Information:
Bill Michalek, Director, Investor Relations
636.474.5443

Enter your recipient's email address and click the button to email page: