Hung-Chang Lin
Encyclopedia
Hung Chang Lin (Chinese: 凌宏璋; pinyin: Líng Hóngzhāng; Wade-Giles: Ling Hung-chang; August 8, 1919 – March 5, 2009) was a Chinese-American
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 inventor, and who was a professor of Electrical Engineering at the University of Maryland
University of Maryland
When the term "University of Maryland" is used without any qualification, it generally refers to the University of Maryland, College Park.University of Maryland may refer to the following:...

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Hung C. Lin holds 61 U.S. patent
Patent
A patent is a form of intellectual property. It consists of a set of exclusive rights granted by a sovereign state to an inventor or their assignee for a limited period of time in exchange for the public disclosure of an invention....

s. Among his inventions is the quasi-complementary (transistor) amplifier circuit, which has been used in many commercial audio amplifiers. Another of his inventions is the lateral transistor which is used in linear integrated circuits and T2L digital integrated circuits. He also invented the wireless microphone
Wireless microphone
A wireless microphone, as the name implies, is a microphone without a physical cable connecting it directly to the sound recording or amplifying equipment with which it is associated...

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He has published more than 170 professional papers mostly on transistors and integrated circuits.

In 1941 he received the B.S. in Electrical Engineering from Shanghai Jiaotong University, China
China
Chinese civilization may refer to:* China for more general discussion of the country.* Chinese culture* Greater China, the transnational community of ethnic Chinese.* History of China* Sinosphere, the area historically affected by Chinese culture...

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In 1948 he received the M.S. degree from the University of Michigan
University of Michigan
The University of Michigan is a public research university located in Ann Arbor, Michigan in the United States. It is the state's oldest university and the flagship campus of the University of Michigan...

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In 1956 he received the Doctor of Electrical Engineering from the Polytechnic Institute of Brooklyn
Brooklyn
Brooklyn is the most populous of New York City's five boroughs, with nearly 2.6 million residents, and the second-largest in area. Since 1896, Brooklyn has had the same boundaries as Kings County, which is now the most populous county in New York State and the second-most densely populated...

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In 1978 he was presented with the JJ Ebers Award from the IEEE.
In 2000 he was elected to be academician
Academician
The title Academician denotes a Full Member of an art, literary, or scientific academy.In many countries, it is an honorary title. There also exists a lower-rank title, variously translated Corresponding Member or Associate Member, .-Eastern Europe and China:"Academician" may also be a functional...

 of Academia Sinica
Academia Sinica
The Academia Sinica , headquartered in the Nangang District of Taipei, is the national academy of Taiwan. It supports research activities in a wide variety of disciplines, ranging from mathematical and physical sciences, to life sciences, and to humanities and social sciences.Academia Sinica has...

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