Substrate containing low-Dk-core glass fibers having low dielectric constant (Dk) cores for use in printed circuit boards (PCBs), and method of making same

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United States of America Patent

PATENT NO 9456496
SERIAL NO

14620880

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An enhanced substrate for use in printed circuit boards (PCBs) includes low-Dk-core glass fibers having low dielectric constant (Dk) cores. In some embodiments, the low-Dk-core glass fibers are filled with a low Dk fluid, such as a gas (e.g., air, nitrogen and/or a noble gas) or a liquid. After via holes are drilled or otherwise formed in the substrate, silane is applied to the ends of hollow glass fibers exposed in the via holes to seal the low Dk fluid within the cores of the hollow glass fibers. In some embodiments, the low-Dk-core glass fibers are filled with a solid (e.g., a low Dk resin). For example, a hollow glass fiber may be provided, and then filled with a low Dk resin in a liquid state. The low Dk resin within the hollow glass fiber is then cured to a solid state.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chamberlin, Bruce J Vestal, US 47 296
Kuczynski, Joseph North Port, US 573 2136
Nixa, Paula M Rochester, US 4 14

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