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Transistors
Patents and Inventions


InventionInventorYearPatent No.
Transistor (Bipolar Junction Transistor - BJT)John Bardeen &
William Shockley &
Walter Brattain
1947US2,524,035
US2,569,347
FET - Field Effect TransistorJulius Edgar Lilienfeld1928US1,745,175
HEMT - High Electron Mobility TransistorTakashi Mimura1980US4,424,525
US-RE33,584
IGBT - Insulated Gate Bipolar TransistorJayant B. Baliga1984US4,620,211
JFET - Junction Field-Effect TransistorWilliam Shockley
G. C. Dacey & I. M. Ross
1952
1953
 
MESFET - Metal-Semiconductor Field Effect TransistorCarver Mead1965 
MOSFET - Metal-Oxide Semiconductor Field-Effect TransistorJohn Atalla1960 
OFET - Organic Field Effect Transistor   
TFT - Thin-Film TransistorAnne Chiang1987-1994 
Darlington Transistor PairSidney Darlington1952US2,663,806
Compound Transistor   
Photo Transistor 1958 
RHET - Resonant tunneling Hot Electron TransistorN. Yokoyama1980s 


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Last updated: April 2011
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