Patent · US Expired

System and method for reducing charged particle contamination

US6894294B2 · kind B2 · utility

1Cited by
3References
38Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJun 19, 2003
Grant dateMay 17, 2005
Priority date
Expiry dateJun 19, 2023

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01J2237/31747
  • WIPO fieldMicro-structural and nano-technology
  • WIPO sectorChemistry

Abstract

A system and method for reducing ion contamination in an object, the ion contamination introduced by a contaminating ion beam milling step. The system includes means for defining a suspected ion contaminated area; and means for removing the suspected ion contaminated area by a non-contaminating process, which usually involves directing an electron beam towards the removed area while allowing the beam to interact with additional material. The method includes the steps of defining a suspected ion contaminated area; and removing the suspected ion contaminated area by non-contaminating process.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.