Zobrazeno 1 - 10
of 31
pro vyhledávání: '"R.K. Surridge"'
Publikováno v:
IEEE Transactions on Electron Devices. 49:1375-1383
A technique is presented that allows the increase in maximum temperature rise due to thermal coupling in multifinger structures to be predicted for a wide range of finger lengths and spacings by reference to a single, normalized characteristic. Appli
Publikováno v:
Journal of Crystal Growth. 136:230-234
AlGaAs-GaAs heterojunction bipolar transistors have been fabricated with current gains > 200 for devices with emitter dimensions of 2×2 μm2. The epitaxial layers were grown using chemical beam epitaxy and were npn single heterojunction transistors
Publikováno v:
MTT-S International Microwave Symposium Digest.
Planar GaAs Mott mixer diodes have been made for use in novel E-plane balanced mixers at 35 and 85 GHz. Single sideband noise figures of 6 dB at 35 GHz and 7.5 dB at 85 GHz (including 1 dB I.F. contribution) have been achieved. Both devices and circu
Publikováno v:
IEEE MTT-S International Microwave Symposium Digest.
The authors consider an improved distributed-amplifier (DA) architecture which uses simultaneous inductance tapering and signal forward feeding to obtain additional degrees of freedom for optimization. The effects of losses on the high-frequency perf
Publikováno v:
Thin Solid Films. 51:77-82
We have used Rutherford backscattering and electrical measurements to asses the efficiency of pyrolytically deposited Si 3 N 4 as an encapsulant for ion-implanted GaAs. Outdiffusion of gallium and arsenic into the Si 3 N 4 layers occurred in all case
Autor:
B.J. Sealy, R.K. Surridge
Publikováno v:
Thin Solid Films. 26:L19-L22
Publikováno v:
1981 11th European Microwave Conference.
Conversion losses of 5.0 dB have been achieved at 35 GHz, with SSB noise figures of 6 dB (including 1 dB IF) using coplanar Mott diodes in finline balanced mixers. [l] The variation of noise figure with local oscillator power is significantly less th
Publisher Summary This chapter discusses the various aspects of negative electron affinity GaAsP cold cathode silicon vidicon. The development of the cathode and the subsequent success in using it in experimental TV camera tubes are presented. The p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48328be7f966b808db014a3b575ac6ee
https://doi.org/10.1016/s0065-2539(08)61496-1
https://doi.org/10.1016/s0065-2539(08)61496-1
Autor:
B.J. Sealy, R.K. Surridge
Publikováno v:
Electronics Letters. 13:233
High-energy, doubly charged selenium ions have been used to produce dopant profiles suitable for GaAs devices, such as f.e.t.s. Selenium has the advantage that beams of high purity may be formed.
Publikováno v:
Electronics Letters. 11:314
Enhanced donor activities have been obtained after annealing at 700°C for selenium implants into GaAs by implanting an equal dose of gallium together with the selenium. Donor concentration depth profiles, measured for both single and dual implants o