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Geumjoo J Ra

from Lake Forest, CA
Age ~59
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Also known as:
Geum Joo Ra, Guem Joo Ra, Guem J Ra, Geumjo J Ra, O Ra, Ra Geumjoo
Related to:
Colin LeeGi LeeNancy LeeDiana L Roush, 61Kang H Lee, 63
Connected to:
Agustine Ra, 53Andrea R Ra, 51Ban B Ra, 35Bangog Ra, 60Bibek Ra, 37Dojin Ra, 58Jene C Ra, 36Jillian S Ra, 42Kevin H Ra, 36Kyeong W Ra, 57

Geumjoo Ra Phones & Addresses

  • Lake Forest, CA
  • Irvine, CA
  • North Andover, MA
  • Metairie, LA
  • Lawrence, MA
  • Beverly, MA
  • Woodside, NY
  • Orange, CA
  • 1802 Dogwood Cir, North Andover, MA 01845 (978) 557-8145

Work

Position: Clerical/White Collar

Education

Degree: High school graduate or higher

Publications

Us Patents

Systems And Methods That Mitigate Contamination And Modify Surface Characteristics During Ion Implantation Processes Through The Introduction Of Gases

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US Patent:
20070075274, Apr 5, 2007
Filed:
Nov 14, 2005
Appl. No.:
11/273039
Inventors:
Ronald Reece - Westwood MA, US
Serguei Kondratenko - Swampscott MA, US
Geumjoo Ra - North Andover MA, US
Louis Wainwright - Beverly MA, US
Gary Cai - Beverly MA, US
International Classification:
H01J 37/08
US Classification:
250492210
Abstract:
A contamination mitigation or surface modification system for ion implantation processes includes a gas source, a controller, a valve, and a process chamber. The gas source provides delivery of a gas, be it atmospheric or reactive, to the valve and is controlled by the controller. The valve is located on or about the process chamber and controllably adjusts flow rate and/or composition of the gas to the process chamber. The process chamber holds a target device, such as a target wafer and permits interaction of the gas with an ion beam to mitigate contamination of the target wafer and/or to modify the existing properties of the processing environment or target device to change a physical or chemical state or characteristic thereof. The controller selects and adjusts composition of the gas and flow rate according to contaminants present within the ion beam, or lack thereof, as well total or partial pressure analysis.
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Geumjoo J Ra from Lake Forest, CA, age ~59 Get Report