This paper describes the restrictions of further reducing the low-frequency noise to make a new washed emitter transistor whose emitter was formed by phosphorus diffusion through a thermally grown thin oxide layer and discusses the superior features, including the reduction of extra-phosphorus atoms in the emitter region and the restrictions of induced defects as well as emitter edge defects.
and that the optimizing ratio of the side length of the photo-excited region W to the side length of the emitter region is 7.578425:1. These results will be used to design low noise, high frequency phototransistors.
Based on discussing the damage zone of intercepting TBM,a method for determining the launching zone of lower antimissile defense system intercepting TBM is given according to the equation of motion of TBM. The reference for researching the theory of antimissile defensive operations and the important basis for commander to determine the optimum launching opportunity and way are provided. \;
a multi-target passage air defence missile fire unit should hit targets from far to near distance,but for air targets approaching near boundary of effective launching zone should hit targets from near to far distance.
The vertical gradient of the longitudinal magnetic field above the preceeding sunspoc of the active region Boulder 2744 on 23 October, 1980 was calculated based on the model of constant a force-free field. In connection with the longitudinal magnetic field of the chromsphere-co-I'ona transition region observed in the spectral line CIV 1548, the effective height of the CIV 1548 emission region was estimated.
The spectrum is the bar chart of the emission region temperature vs. the normalizationarea of the emission region occupied by the temperature. The bar chart is the temperature spectrumof normalization area of the emission region, or for short, emission region thermal spectrum.
Near-emitter region of thermoelectronic laser energy converter at high concentrations of a readily ionized additive
Fine structure of the near-emitter region of a thermoelectronic laser energy converter with a high concentration of atoms of a readily ionized additive at this electrode have been studied with allowance for variations in the electron temperature.
The ion composition of the plasma in a near-emitter region qualitatively changes with a distance from the electrode.
Low-frequency noise of the quasi-neutral emitter region of bipolar transistors
At low frequencies and currents the advantage is held by topographies that maximize the area-to-perimeter ratio of the emitter region-in particular, transistors with an annular emitter and a central base contact.