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BUILDING ON THE PAST, READY FOR THE FUTURE: - MEMC

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54<br />

300mm double-sided polishing.<br />

“Silicon-on-Insulator,” a.k.a. SOI, wafers were originally<br />

manufactured by SiBond, LLC, a joint venture between <strong>MEMC</strong><br />

and IBM. These wafers were produced in 2007.<br />

PASADenA PlAnT<br />

1983 Ethyl completes $150M<br />

investment to develop granular<br />

polysilicon manufacturing process.<br />

1985 Ethyl completes $70M investment<br />

in granular polysilicon<br />

manufacturing process—PA21.<br />

1987 Ethyl completes startup of PA21<br />

after investing an additional $50M<br />

in the process.<br />

1994 Ethyl spins off chemical business<br />

into a separate publicly traded<br />

company, Albemarle. Polysilicon<br />

manufacturing is part of the new<br />

company.<br />

1995 Albemarle sells PA21 to <strong>MEMC</strong> for<br />

$58M.<br />

1998 <strong>MEMC</strong> completes investment in an<br />

additional silane production unit,<br />

PA22, raising capacity to 2,500<br />

metric tons per year.<br />

2007 <strong>MEMC</strong> completes investment in<br />

third silane production unit, PA23,<br />

raising total capacity to 6,000<br />

metric tons per year.<br />

2008 <strong>MEMC</strong> completes investment in<br />

fourth silane production unit,<br />

PA24; this investment combined<br />

with expansions in Merano raises<br />

total <strong>MEMC</strong> capacity to 8,000<br />

metric tons per year.<br />

In 1994, <strong>MEMC</strong> again partnered with IBM to form<br />

a new company called SiBond, LLC. The company,<br />

based at St. Peters, used technology developed by<br />

the IBM Research Division plus manufacturing<br />

and sales techniques developed by <strong>MEMC</strong> in the<br />

creation of a specialty technology called “siliconon-insulator”<br />

(SOI) technology to be used for<br />

memory devices containing more than one gigabit<br />

of data.<br />

The specialty wafer’s makeup is a sort of sandwich

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