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Publikováno v:
Microelectronic Engineering. 35:67-70
Post-RIE cleaning processes after the dry gate recess etching step of lattice-matched InGaAs/InAlAs/InP-HEMTs using an oxygen plasma treatment of the surface followed by various wet chemical steps have been investigated. The treated surfaces have bee
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Publikováno v:
IEEE Electron Device Letters. 17:482-484
Lattice-matched InAlAs-InGaAs HEMTs with dry etched and wet etched gate recesses have been fabricated and both high-frequency and noise measurements have been carried out. The highly selective dry etching process ensures uniform device parameters. Th
Publikováno v:
Conference Proceedings. Eleventh International Conference on Indium Phosphide and Related Materials (IPRM'99) (Cat. No.99CH36362).
In this paper, a technology for the fabrication of high performance InP-based HEMTs using dry gate recess etching is reported. The dry etched devices show better uniformity and considerably reduced low-frequency noise compared to conventionally wet e
Publikováno v:
1993 (5th) International Conference on Indium Phosphide and Related Materials.
InGaAs/InP double heterostructure bipolar transistors (HBTs) with small-signal current gains /spl beta/ of 90 and breakdown voltages BV/sub CEO/ in excess of 20 V are reported. Respective f/sub t/ and f/sub max/ values of 32 and 25 GHz were obtained
Publikováno v:
Proceedings of 8th International Conference on Indium Phosphide and Related Materials.
Lattice-matched InAlAs/InGaAs HEMTs with selectively dry etched and wet etched gate recesses have been fabricated and both high-frequency and noise measurements have been carried out. The modelling of the noise source parameters shows only minor diff
Publikováno v:
1998 IEEE MTT-S International Microwave Symposium Digest (Cat. No.98CH36192).
A DRO operating in the frequency range of 23.2-24.8 GHz was designed using InGaAs-InAlAs-InP HEMTs with dry and wet etched gate recess. The oscillator consisted of an MMIC in coplanar waveguide technology and an externally coupled mechanically tunabl
Publikováno v:
Compound Semiconductors 1997. Proceedings of the IEEE Twenty-Fourth International Symposium on Compound Semiconductors.
The low frequency noise of lattice-matched InP-based HEMTs gate recess etched with CH/sub 4//H/sub 2/ RIE and phosphoric-acid based wet etchants was studied at different gate and drain biases in a temperature range of 77 K to 340 K. The measurements
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