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Portrait of Alfred Yi Cho  in caricature style with a background made out of rushing spheres.

Alfred Yi Cho

Molecular Beam Epitaxy Inventor
Born: 7-10-1937 Bejing, China

Alfred Cho is known as the father of "molecular beam epitaxy", a technique that he invented. His work significantly affected the semiconductor industry and led to many new devices including high-speed transistors, microwave devices and remote sensing detectors. His technology is also used in CD/DVD players, mobile phones and global positioning systems. He holds 85 U.S. patents.

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