Coating inspection method
First Claim
1. A reflectometry method for detecting discontinuities in a chemical vapor deposition (CVD) coating comprising:
- providing a thermoplastic vessel wall having an outside surface, an inside surface, and a CVD coating on at least one of the inside and outside surfaces, the vessel wall and the CVD coating having different indices of refraction;
impinging electromagnetic energy on multiple positions of the CVD coating under conditions effective to cause energy to reflect from the multiple positions of the CVD coating;
analyzing the reflected energy to determine whether the reflected energy includes at least one artifact of a discontinuity in the CVD coating.
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Accused Products
Abstract
A reflectometry method and other methods for detecting discontinuities in a chemical vapor deposition (CVD) coating are disclosed. The method includes several steps. A thermoplastic vessel wall (710) is provided having an outside surface, an inside surface, and a CVD coating on at least one of the inside and outside surfaces. The vessel wall and the CVD coating have different indices of refraction. Electromagnetic energy (718) is impinged on multiple positions of the CVD coating under conditions effective to cause energy to reflect from the multiple positions of the CVD coating. The reflected energy is analyzed to determine whether the reflected energy includes at least one artifact of a discontinuity in the CVD coating.
948 Citations
15 Claims
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1. A reflectometry method for detecting discontinuities in a chemical vapor deposition (CVD) coating comprising:
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providing a thermoplastic vessel wall having an outside surface, an inside surface, and a CVD coating on at least one of the inside and outside surfaces, the vessel wall and the CVD coating having different indices of refraction; impinging electromagnetic energy on multiple positions of the CVD coating under conditions effective to cause energy to reflect from the multiple positions of the CVD coating; analyzing the reflected energy to determine whether the reflected energy includes at least one artifact of a discontinuity in the CVD coating. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification