4H-SiC JBS diode with breakdown voltage higher than 6.5 kV has been successfully fabricated on 4H-SiC wafers with epitaxial layer. In this paper, the simulation, the fabrication, and the electrical characteristics of ...
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WS2 is an attractive two-dimensional semiconductor material for electronic and optoelectronic device applications due to its high phonon limited mobility compared to other transition metal *** measured field-effect mo...
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WS2 is an attractive two-dimensional semiconductor material for electronic and optoelectronic device applications due to its high phonon limited mobility compared to other transition metal *** measured field-effect mobility thus far,however,is much smaller than theoretical predictions,dominated by extrinsic factors including charge traps and impurities.
Because of difficulty in deep ion implantation, the recessed gate structure has been favored in SiC SIT. In order to improve the frequency, it is a good method to decrease the gate length by eliminating the side wall ...
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This paper presents a hybrid-π equivalent circuit extract method for graphene field-effect transistors up to 66 GHz. Because the G-FET channel cannot be pinched off, the open and short structures are used to remove p...
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ISBN:
(纸本)9781467365451
This paper presents a hybrid-π equivalent circuit extract method for graphene field-effect transistors up to 66 GHz. Because the G-FET channel cannot be pinched off, the open and short structures are used to remove parasitic element of the pad. The intrinsic elements of the model parameters are extracted from measured S-parameters directly. The model is verified with experiments and simulations, and good agreements are observed. The model will provide some insights and guidance for the practical use of the GFETs and can be embedded in circuit simulation tools.
In this paper, We research the AlGaN/GaN internal matching technology. Using in-house made four 20mm GaN Power HEMT transistors, the internal matching power HEMT demonstrates a pulse over f80W across the band of 13.7-...
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ISBN:
(纸本)9781479988983
In this paper, We research the AlGaN/GaN internal matching technology. Using in-house made four 20mm GaN Power HEMT transistors, the internal matching power HEMT demonstrates a pulse over f80W across the band of 13.7-14.5GHz, an output power more than 200W with a power gain of over 6dB, the power added efficiency (PAE) of 30.47% at 14 GHz, operated at 32V drain bias voltage (Vds) with the pulsed conditions at a duty of 1 0% with a pulse width of 100us. The package size excluding flange and leads is 17.4mm × *** is the highest output power in a 100W-class AlGaN/GaN HEMT in that such package at Ku-band to the best of our knowledge.
A metal contact RF MEMS switch based on single crystal silicon is presented in this article. Performance of the switch is demonstrated numerically in simulations. The mN-level contact and release forces are achieved. ...
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A novel model method for III-V HEMTs small-signal model parameter extraction is presented in this work. All the model elements are directly derived from hot S-parameters, rather than cold S-parameters, by using vector...
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In this paper, a 340GHz GaAs monolithicintegrated sub-harmonic mixer based on planar Schottky diode is presented. The mixer circuit is fabricated on a 12um GaAs substrate included planar Schottky diode in a balanced ...
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ISBN:
(纸本)9781479987689
In this paper, a 340GHz GaAs monolithicintegrated sub-harmonic mixer based on planar Schottky diode is presented. The mixer circuit is fabricated on a 12um GaAs substrate included planar Schottky diode in a balanced configuration, the passive RF/LO and IF matching networks, filtering circuits, as well as transitions from waveguide to suspended micro-strip. Simulated results for the 340 GHz mixer achieved DSB conversion loss of 6.49dB at 306.4GHz when the LO pumped power was 5.96dBm at 165GHz. The conversion loss was less than 8dB from 290GHz to 355GHz.
The present work describes the study and improvement of heterogeneous integration based on epitaxial layer transfer technique, which is used to separate III/V device structures from their substrate and transfer to the...
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ISBN:
(纸本)9781479923366
The present work describes the study and improvement of heterogeneous integration based on epitaxial layer transfer technique, which is used to separate III/V device structures from their substrate and transfer to the other substrate. Our work aims in the development of a new process for integration of GaAs devices with Si. It is based on low temperature bonding of the epitaxial layer transfer technology. Using this method, we demonstrate that GaAs PIN epitaxial layer on a 3 inch-diameter GaAs wafer is transferred to a silicon substrate. After the GaAs PIN epitaxial layer is transferred, the GaAs PIN devices on silicon are fabricated, besides the IV characteristic of GaAs PIN devices is unaffected by epitaxial layer transfer.
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