Methods and apparatus for estimating moisture absorption by hygroscopic materials
US6816812B2 · kind B2 · utility
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24Claims
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Key dates
| Filing date | Dec 14, 2001 |
| Grant date | Nov 9, 2004 |
| Priority date | — |
| Expiry date | Jan 11, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F17/18
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are methods and apparatus to measure specific mass increases (due to the absorption of moisture) that occur in materials and for predicting moisture absorption in materials. In one method, pre-dried plastic encapsulated microchip packages (PEMs) are exposed to moist air over a period of time and moisture absorption is determined over a period of time resulting in prediction of moisture absorption of a particular material and determination of methods of care and storage of material to prevent excessive moisture absorption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.