Accession Number : ADD014022

Title :   In-Line Determination of Presence of Liquid Phase Moisture in Sealed IC Packages.

Descriptive Note : Patent, Filed 19 May 86, patented 4 Oct 88,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON DC

Personal Author(s) : Annamalai, Nagappan K

Report Date : 04 Oct 1988

Pagination or Media Count : 7

Abstract : Liquid phase moisture is detected in sealed integrated circuit packages by measuring the conductance and capacitance of the integrated circuit at a temperature which is above temperatures which allow moisture to condense; and remeasuring the conductance and capacitance of the integrated circuit at a temperature which allow any moisture present to condense on the integrated circuit. The conductance of the integrated circuit is expected to rise sharply with the condensation of water on its surface. Patents. (MJM)

Descriptors :   *INTEGRATED CIRCUITS, *MOISTURE, *PACKAGED CIRCUITS, *PATENTS, *SEALED SYSTEMS, CAPACITANCE, CONDENSATION, DETERMINATION, LIQUID PHASES, WATER

Subject Categories : Inorganic Chemistry
      Test Facilities, Equipment and Methods
      Electrical and Electronic Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE