Laser isotope purification of lead for use in semiconductor chip interconnects

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Lead, used throughout the electronics industries, typically contains small amounts of radioactive {sup 210}Pb (a daughter product of the planets ubiquitous {sup 238}U) whose {sup 210}Po daughter emits an {alpha}-particle that is known to cause soft errors in electronic circuits. The {sup 210}Pb is not separable by chemical means. This paper describes the generic Atomic Vapor Laser Isotope Separation (AVLIS) process developed at the Lawrence Livermore National Laboratory (LLNL) over the last 20 years, with particular emphasis on recent efforts to develop the process physics and component technologies required to remove the offending {sup 210}Pb using lasers. We have constructed ... continued below

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6 p.

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Scheibner, K.; Haynam, C.; Worden, E. & Esser, B. March 19, 1996.

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Description

Lead, used throughout the electronics industries, typically contains small amounts of radioactive {sup 210}Pb (a daughter product of the planets ubiquitous {sup 238}U) whose {sup 210}Po daughter emits an {alpha}-particle that is known to cause soft errors in electronic circuits. The {sup 210}Pb is not separable by chemical means. This paper describes the generic Atomic Vapor Laser Isotope Separation (AVLIS) process developed at the Lawrence Livermore National Laboratory (LLNL) over the last 20 years, with particular emphasis on recent efforts to develop the process physics and component technologies required to remove the offending {sup 210}Pb using lasers. We have constructed a developmental facility that includes a process laser development area and a test bed for the vaporizer and ion and product collectors. We will be testing much of the equipment and demonstrating pilot scale AVLIS on a surrogate material later this year. Detection of the very low alpha emission even from commercially available low-alpha lead is challenging. LLNL`s detection capabilities will be described. The goal of the development of lead purification technology is to demonstrate the capability in FY97, and to deploy a production machine capable of up to several MT/y of isotopically purified material, possible beginning in FY98.

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6 p.

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INIS; OSTI as DE96014131

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  • IEEE electronic components and technology conference, Orlando, FL (United States), 28-31 May 1996

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  • Other: DE96014131
  • Report No.: UCRL-JC--122657-Rev.1
  • Report No.: CONF-9605101--7
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/231307 | External Link
  • Office of Scientific & Technical Information Report Number: 283641
  • Archival Resource Key: ark:/67531/metadc671470

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • March 19, 1996

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • Feb. 23, 2016, 1:49 p.m.

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Scheibner, K.; Haynam, C.; Worden, E. & Esser, B. Laser isotope purification of lead for use in semiconductor chip interconnects, article, March 19, 1996; California. (digital.library.unt.edu/ark:/67531/metadc671470/: accessed November 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.