Corning Incorporated
POLYMER AND POROUS INORGANIC COMPOSITE ARTICLE AND METHODS THEREOF

Abstract:

An inorganic circuit board article including: a porous inorganic sheet having a low dielectric loss of from 1.times.10.sup.-5 to 3.times.10.sup.-3 at a high frequency of from 10 to 30 GHz and the porous inorganic sheet has a percent porosity of from 30 to 50 vol %; a dielectric polymer having a low dielectric loss of from 10.sup.-4 to 10.sup.-3 at a high frequency of from 10 to 20 GHz, wherein the dielectric polymer occupies the pores of the porous inorganic sheet, and the inorganic circuit board article has a dielectric loss of from 1.times.10.sup.-4 to 9.times.10.sup.-4. The disclosure also includes methods of making and using the inorganic circuit board article.