(1)4» W Transmission US 7,711,015 B2 Page 2
US007711015B2 (12) Unlted States Patent (10) Patent N0.2 US 7,711,015 B2 Holonyak, Jr. et al. (45) Date of Patent: May 4, 2010 (54) METHOD FOR CONTROLLING OPERATION 4,845,535 A 7/1989 Yamanishi et a1. ........ .. 315/172 OF LIGHT EMITTING TRANSISTORS AND 4,958,208 A 9/1990 Tanaka ........... .. 357/34 LASER TRANSISTORS 5,003,366 A 3/1991 Mishima et al. 357/34 5,239,550 A 8/1993 Jain .......................... .. 372/45 75 _ . _ 5,293,050 A 3/1994 Chapple-Sokolet al. .... .. 257/17 ( ) Inventors‘ H‘irlonyagilh" UrbanIaL’ IL gs)’ 5,334,854 A 8/1994 Ono et al. ................... .. 257/13 1 0,“ eng’ ampalgn’ (U )’ 5,389,804 A 2/1995 Yokoyama et al. 257/197 Gabnelwalter, Urbana> IL (Us) 5,399,880 A 3/1995 Chand ............ .. 257/21 _ 5,414,273 A 5/1995 Shimura et al. ....... .. 257/17 (73) Asslgneei Th1? Board 0fTr_l1st_ees of The 5,588,015 A 12/1996 Yang .............. .. .. 372/45012 Unlverslty 0f 111111018, Urbana, IL (US) 5,684,308 A 11/1997 Lovejoy etal. ........... .. 257/184 5,723,872 A 3/1998 Seabaugh et al. ........... .. 257/25 ( * ) Notice: Subject to any disclaimer, the term of this patent is extended or adjusted under 35 (Continued) USC‘ 1540’) by 240 days‘ FOREIGN PATENT DOCUMENTS (21) APP1- NO-I 11/805359 JP 61231788 10/1986 (22) Filed: May 24, 2007 (Continued) (65) Prior Publication Data OTHER PUBLICATIONS Us Zoos/0240173 A1 Oct 2’ 2008 Light-Emitting Transistor: Light Emission From InGaP/GaAs Heterojunction Bipolar Transistors, M. Feng, N.
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