A duckbill check valve is described that is designed to overcome problems of inadequate closing of the valve at low differential pressure.
Composite fuel permeation barrier seal
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 143 KB
- Volume
- 2003
- Category
- Article
- ISSN
- 1350-4789
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โฆ Synopsis
This invention relates to a method for hermetically encapsulating an electronic component that is mounted in flip-chip design on a support. The method described is characterized by first covering the component with a film, which closely rests on the component and the support, then structuring the film, and providing a hermetic sealing layer, especially a metal layer, which creates a seal with the support.
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