US 12,261,216 B2
Network device having transistors employing charge-carrier mobility modulation to drive operation beyond transition frequency
Ricky Yuan Chen, Newbury Park, CA (US)
Assigned to Marvell Asia Pte Ltd, Singapore (SG)
Filed by Marvell Asia Pte Ltd, Singapore (SG)
Filed on Feb. 17, 2022, as Appl. No. 17/673,847.
Claims priority of provisional application 63/224,291, filed on Jul. 21, 2021.
Claims priority of provisional application 63/214,661, filed on Jun. 24, 2021.
Claims priority of provisional application 63/214,667, filed on Jun. 24, 2021.
Prior Publication US 2022/0416066 A1, Dec. 29, 2022
Int. Cl. H01L 29/772 (2006.01); H01L 29/10 (2006.01); H01L 29/66 (2006.01); H01L 29/78 (2006.01)
CPC H01L 29/7727 (2013.01) [H01L 29/1095 (2013.01); H01L 29/66681 (2013.01); H01L 29/7816 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A network device comprising:
one or more sub-circuits including one or more of (i) an oscillator, (ii) an amplifier, (iii) a mixer, and (iv) a multiplier, the one or more sub-circuits comprising one or more circuit components, the one or more circuit components comprising:
a semiconductor substrate;
a first device terminal and a second device terminal, both device terminals coupled to the semiconductor substrate, the second device terminal being spatially separated from the first device terminal;
a drift region disposed on the semiconductor substrate between the first device terminal and the second device terminal, the drift region configured to allow a flow of charge-carriers between the first device terminal and the second device terminal; and
a mobility modulator coupled to the drift region, the mobility modulator configured to selectively apply a field across the drift region responsive to one or more modulation signals, so as to modulate a mobility of charge-carriers as a function of longitudinal position along the drift region.