High-performance and high-yield Ka-band low-noise MMIC using 0.25- mu m ion-implanted MESFET's

1991 ◽  
Vol 1 (7) ◽  
pp. 167-169 ◽  
Author(s):  
J. Mondal ◽  
J. Detry ◽  
J. Geddes ◽  
D. Carlson
Keyword(s):  
High Performance ◽  
Low Noise ◽  
High Yield ◽  
Ka Band ◽  
Ion Implanted

High-performance Ka-band and V-band HEMT low-noise amplifiers

1988 ◽  
Vol 36 (12) ◽  
pp. 1598-1603 ◽  
Author(s):  
K.H.G. Duh ◽  
Pane-Chane Chao ◽  
P.M. Smith ◽  
L.F. Lester ◽  
B.R. Lee ◽  
...  
Keyword(s):  
High Performance ◽  
Low Noise ◽  
Low Noise Amplifiers ◽  
Ka Band ◽  
V Band

Ka-band monolithic low-noise amplifier using direct ion-implanted GaAs MESFETs

1995 ◽  
Vol 5 (5) ◽  
pp. 156-158 ◽  
Author(s):  
M. Feng ◽  
D.R. Scherrer ◽  
P.J. Apostolakis ◽  
J.R. Middleton ◽  
M.J. McPartlin ◽  
...  
Keyword(s):  
Low Noise ◽  
Low Noise Amplifier ◽  
Ka Band ◽  
Noise Amplifier ◽  
Ion Implanted

High performance ion-implanted low noise GaAs MESFET's

1982 ◽  
Vol 3 (11) ◽  
pp. 327-329 ◽  
Author(s):  
M. Feng ◽  
V.K. Eu ◽  
H. Kanber ◽  
R. Hackett
Keyword(s):  
High Performance ◽  
Low Noise ◽  
Ion Implanted

High-performance Ka-band monolithic low-noise amplifiers using 0.2-μm dry-recessed GaAs PHEMTs

1996 ◽  
Vol 6 (7) ◽  
pp. 253-255 ◽  
Author(s):  
Youngwoo Kwon ◽  
D.S. Deakin ◽  
E.A. Sovero ◽  
J.A. Higgins
Keyword(s):  
High Performance ◽  
Low Noise ◽  
Low Noise Amplifiers ◽  
Ka Band

Quality films from carbon fiber evaporation for thorough coverage of TEM grids

1988 ◽  
Vol 46 ◽  
pp. 418-419
Author(s):  
N. Tempel ◽  
M. C. Ledbetter
Keyword(s):  
Electron Microscopy ◽  
High Resolution Electron Microscopy ◽  
Carbon Films ◽  
Low Noise ◽  
Vacuum Evaporation ◽  
High Yield ◽  
Good Adhesion ◽  
Noise Structure ◽  
Resolution Electron ◽  
Carbon Foils

Carbon films have been a support of choice for high resolution electron microscopy since the introduction of vacuum evaporation of carbon. The desirable qualities of carbon films and methods of producing them has been extensively reviewed. It is difficult to get a high yield of grids by many of these methods, especially if virtually all of the windows must be covered with a tightly bonded, quality film of predictable thickness. We report here a method for producing carbon foils designed to maximize these attributes: 1) coverage of virtually all grid windows, 2) freedom from holes, wrinkles or folds, 3) good adhesion between film and grid, 4) uniformity of film and low noise structure, 5) predictability of film thickness, and 6) reproducibility.Our method utilizes vacuum evaporation of carbon from a fiber onto celloidin film and grid bars, adhesion of the film complex to the grid by carbon-carbon contact, and removal of the celloidin by acetone dissolution. Materials must be of high purity, and cleanliness must be rigorously maintained.

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