Liquid immersion techniques for improved resistance to conductive anodic filament formation
AssigneeInternational Business Machines Corporation
InventorsBruce J. Chamberlin, Matthew S. Kelly, Scott B. King, Joseph Kuczynski
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Abstract
An immersion weaving system includes a first drum immersed in a first bath of a liquid. The first drum is configured to form a glass strand from individual glass filaments. The immersion weaving system also includes a second drum immersed in the first bath of the liquid. The second drum is configured to form a yarn spool from the glass strand. The immersion weaving system further includes a loom immersed in a second bath of the liquid. The loom is configured to form a void-free glass cloth.
Claims15
An immersion weaving process comprising:
- providing a glass filament forming apparatus and a first bath of a pre-resin material, wherein the first bath of the pre-resin material contains a first drum and a second drum;
- forming individual glass filaments;
- guiding the individual glass filaments over the first drum in the first bath of the pre-resin material to form a glass strand;
- winding the glass strand on the second drum to form a yarn spool;
- immersing the yarn spool in a second bath of the pre-resin material;
- removing the glass strand from the yarn spool in the second bath of the pre-resin material;
- and
- immersion weaving the glass strand on a loom immersed in the second bath of the pre-resin material to form a void-free glass cloth.
An immersion weaving process comprising:
- providing a glass filament forming apparatus and a first bath of a low surface tension fluid, wherein the first bath of the low surface tension fluid contains a first drum and a second drum;
- forming individual glass filaments;
- guiding the individual glass filaments over the first drum in the first bath of the low surface tension fluid to form a glass strand;
- winding the glass stand on the second drum to form a yarn spool;
- immersing the yarn spool in a second bath of the low surface tension fluid;
- removing the glass strand from the yarn spool in the second bath of the low surface tension fluid;
- immersion weaving the glass strand on a loom immersed in the second bath of the low surface tension fluid to form a woven glass cloth, wherein the woven glass cloth is impregnated with the low surface tension fluid;
- and
- displacing the low surface tension fluid impregnated in the woven glass cloth with a resin material to form a pre-impregnated (prepreg) material, wherein the prepreg material includes the woven glass cloth as a void-free glass cloth.
Dependencies are inferred from the claim text.