Patent · US Active

Handle wafer having viewing windows

US8288841B2 · kind B2 · utility

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10References
9Claims
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Key dates

Filing dateJun 30, 2010
Grant dateOct 16, 2012
Priority date
Expiry dateOct 30, 2030

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01L2924/3025
  • WIPO fieldSemiconductors
  • WIPO sectorElectrical engineering

Abstract

A handle wafer for microelectronic functional wafers, including at least one cavity through the thickness of the wafer, this cavity including a viewing window in solid or solidified material.

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