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Alexei V Ermakov

from Piscataway, NJ
Age ~63
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Related to:
Shameeka C Guerrier, 38Christopher D Rollins, 31Zitman N Rollins, 87
Connected to:
Galina Ermakova, 62Richard Ermalinski, 83Frank M Ermalovich, 70Benjamin A Erman, 50Lisa M Erman, 49Matthew E Erman, 50Paul L Erman, 82Julie L Ermatinger, 64Lori L Ermatinger, 51Misty Ermatinger, 43

Alexei Ermakov Phones & Addresses

  • 731 Liberty Ct, Piscataway, NJ 08854 (732) 937-5952
  • 4 Maple St, Highland Park, NJ 08904 (732) 937-5952
  • 84 Maple St, Highland Park, NJ 08904 (732) 937-5952
  • New Brunswick, NJ

Work

Position: Professional/Technical

Education

Degree: Graduate or professional degree

Business Records

Name / Title
Company / Classification
Phones & Addresses
Alexei Ermakov
Director
Rutgers, The State University of New Jersey
College/University
610 Taylor Rd, Piscataway, NJ 08854
(732) 445-2618

Publications

Us Patents

Electron Beam Apparatus For Work Function Measurements

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US Patent:
7495216, Feb 24, 2009
Filed:
Mar 13, 2007
Appl. No.:
11/685693
Inventors:
Alexei Victorovich Ermakov - Piscataway NJ, US
Barbara Jane Hinch - Piscataway NJ, US
International Classification:
H01J 37/244
G01N 23/00
US Classification:
250310, 250306, 250396 R, 250397, 2504911, 2504922
Abstract:
The inventive apparatus measures workfunction values using deflection of an electron beam without direct contact of the electron beam with the sample surface. The apparatus, mounted within a vacuum chamber, includes an electron gun, a position sensitive electron detector, and a sample. The sample is located such that an electron beam emanating from the gun can approach the surface and then be deflected into the position sensitive electron detector. Workfunction values are then derived from a measured deflected-electron position distribution.

Electrostatic Ion Trap

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US Patent:
8586918, Nov 19, 2013
Filed:
Nov 4, 2011
Appl. No.:
13/289142
Inventors:
Gerardo A. Brucker - Longmont CO, US
Kenneth D. Van Antwerp - Colorado Springs CO, US
G. Jeffery Rathbone - Longmont CO, US
Scott C. Heinbuch - Fort Collins CO, US
Michael N. Schott - Loveland CO, US
Barbara Jane Hinch - Edison NJ, US
Alexei V. Ermakov - Highland Park NJ, US
Assignee:
Brooks Automation, Inc. - Chelmsford MA
International Classification:
H01J 49/00
US Classification:
250292, 250281, 250282, 250283
Abstract:
An ion trap includes an electrode structure, including a first and a second opposed mirror electrodes and a central lens therebetween, that produces an electrostatic potential in which ions are confined to trajectories at natural oscillation frequencies, the confining potential being anharmonic. The ion trap also includes an AC excitation source having an excitation frequency f that excites confined ions at a frequency of about twice the natural oscillation frequency of the ions, the AC excitation frequency source preferably being connected to the central lens. In one embodiment, the ion trap includes a scan control that mass selectively reduces a frequency difference between the AC excitation frequency and about twice the natural oscillation frequency of the ions.

Electrostatic Ion Trap

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US Patent:
20100084549, Apr 8, 2010
Filed:
Nov 13, 2007
Appl. No.:
12/514339
Inventors:
Alexei Victorovich Ermakov - Highland Park NJ, US
Barbara Jane Hinch - Edison NJ, US
International Classification:
H01J 49/26
B01D 59/44
US Classification:
250283, 250292, 250293
Abstract:
An electrostatic ion trap confines ions of different mass to charge ratios and kinetic energies within an anharmonic potential well. The ion trap is also provided with a small amplitude AC drive that excites confined ions. The mass dependent amplitudes of oscillation of the confined ions are increased as their energies increase, due to an autoresonance between the AC drive frequency and the natural oscillation frequencies of the ions, until the oscillation amplitudes of the ions exceed the physical dimensions of the trap, or the ions fragment or undergo any other physical or chemical transformation.

Three Coil Apparatus For Inductive Measurements Of Conductance

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US Patent:
6448795, Sep 10, 2002
Filed:
Feb 12, 1999
Appl. No.:
09/249691
Inventors:
Alexei Ermakov - Piscataway NJ, 08854
Barbara Jane Hinch - Edison NJ, 08837
International Classification:
G01R 2708
US Classification:
324724, 324719
Abstract:
The inventive apparatus is capable of accurate contactless sample conductance measurements. In accordance with the invention, a three coil apparatus for inductive conductance measurements comprises at least three coils, (or inductive devices,) a radio frequency (RF) generating device in conjunction with electronic circuitry for radio frequency amplitude measurement and comparison of radio frequency amplitude signals. The attainable accuracy is improved over that achieved using other conventional non-contact means by processing the differences of RF amplitude signals observed across pairs of sensing coils. Also, this invention does not require more complex RF signal processing, such as analysis of in-phase and quadrature voltage data. In a preferred embodiment, the natural resonance frequencies of the two sensing coils are tuned slightly off the RF driving frequency such that a monotonic response across a wide range of the samples conductivity is achieved. The sensitivity of the apparatus to low sample conductances is thereby further enhanced.
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Alexei V Ermakov from Piscataway, NJ, age ~63 Get Report