Title :
A 7-junction electron pump: design and operation
Author :
Keller, M.W. ; Martinis, J.M. ; Zimmerman, N.M.
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO, USA
Abstract :
We report progress in the development of a 7-junction electron pump for use in a new capacitance standard. Cross capacitance in the pump has been reduced with a new geometry of islands and gates. Stray capacitance and charge noise have been reduced by using a quartz substrate. With these and other improvements the pump has become a relatively easy-to-operate cryoelectronic device.
Keywords :
capacitance measurement; electron device noise; measurement standards; quartz; random noise; substrates; tunnelling; SiO/sub 2/; capacitance standard; charge noise; cross capacitance; cryoelectronic device; electron pump; geometry of islands; quartz substrate; stray capacitance; Capacitance; Capacitors; Electrons; Geometry; Measurement standards; NIST; Polarization; Standards development; Tunneling; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 1996 Conference on
Conference_Location :
Braunschweig, Germany
Print_ISBN :
0-7803-3376-4
DOI :
10.1109/CPEM.1996.547318
