Reverse saturation current density imaging of highly doped regions in silicon: A photoluminescence approach

2012 ◽  
Vol 106 ◽  
pp. 76-79 ◽  
Author(s):  
Jens Müller ◽  
Karsten Bothe ◽  
Sandra Herlufsen ◽  
Helge Hannebauer ◽  
Rafel Ferré ◽  
...  
Keyword(s):  
Current Density ◽  
Saturation Current ◽  
Saturation Current Density ◽  
Current Density Imaging ◽  
Reverse Saturation Current

Electrical Characterization of InAs/(GaIn)Sb Infrared Superlattice Photodiodes for the 8 to 12νm Range

1999 ◽  
Vol 607 ◽  
Author(s):  
L. Bürkle ◽  
F. Fuchs ◽  
R. Kiefer ◽  
W. Pletschen ◽  
R. E. Sah ◽  
...  
Keyword(s):  
Electrical Characterization ◽  
Cutoff Wavelength ◽  
Saturation Current ◽  
Diffusion Limited ◽  
Saturation Current Density ◽  
Out Of Plane ◽  
Reverse Saturation Current ◽  
The Magnetic Field ◽  
Diode Current

AbstractInAs/(GaIn)Sb superlattice photodiodes with a cutoff wavelength of 8.711μm show adynamic impedance of R0A= 1.5 kωcm2at 77 K and a responsivity of 2 A/W, corresponding to a detectivity of D*= 1 x 1012 cmv√Hz/W. Diffusion limited performance is observed above 100 K. At lower temperatures the diodesare limited by generation-recombination currents. An analysis of the influence of different diode sidewall passivations on the surface contribution to the diode leakage current is presented. The out-of-plane electron mobility as well as the relative contributions of the electron and hole diffusion currents to the diode current were determined by a measurement of the magnetic field dependence of the reverse saturation current density of the diodes

Atmospheric TIG Arc Diagnostics with a Low Disturbance Electrostatic Probe

2013 ◽  
Vol 652-654 ◽  
pp. 2239-2243
Author(s):  
Yuan Bo Li ◽  
Liang Zhu
Keyword(s):  
Current Density ◽  
Longitudinal Direction ◽  
Axial Direction ◽  
Half Width ◽  
Arc Plasma ◽  
Plasma Diagnostic ◽  
Saturation Current ◽  
Sweeping Motion ◽  
Saturation Current Density ◽  
Electrostatic Probe

The use of electrostatic probe is available and simple in atmospheric TIG arc plasma diagnostic. Usually electrostatic probe takes disturbance in arc plasma due to sweeping motion. A low disturbance electrostatic probe was developed. This probe consisted of aluminum wire and moved through arc plasma along probe’s longitudinal direction to avoid sweeping motion. And the signal collected by this probe required Abel inversion to convert into the value per 1 mm probe length. With the application of the low disturbance probe in biased condition, ion saturation current density in various sections along the axial direction of TIG arc was obtained. The result shows that half width and peak value of ion saturation current density increase with the enhance of arc current; the radius of current-carrying area can be estimated by the half width of ion saturation current density; along the axial direction of TIG arc, the radius of current-carrying area change to the minimum near cathode.

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