摘要:
An amorphous partially crystallizable alkaline earth zinc silicate glass containing ZrO.sub.2 and optionally small amounts of Al.sub.2 O.sub.3, HfO.sub.2, P.sub.2 O.sub.5 and TiO.sub.2.
摘要翻译:含有ZrO 2和任选少量Al 2 O 3,HfO 2,P 2 O 5和TiO 2的无定形部分可结晶的碱土金属硅酸锌玻璃。
摘要:
A composition for making fired dielectric layers which is especially suitable for laser scribing consisting essentially of finely divided particles of dielectric glass, inorganic filler having a refractive index higher than the glass and cobalt oxide, all being dispersed in organic medium. The composition can be in the form of either thick film paste or green tape.
摘要:
A dielectric composition comprising an admixture of finely divided particles of(a) 65-94 wt % of a non-reducing amorphous glass comprising of 15-27% ZnO, 8-30% alkaline earth metal oxides including 7-21% BaO, 40-60% SiO.sub.2, 3-14% Al.sub.2 O.sub.3, 0-5% PbO and 0.5-5% of a metal oxide selected from ZrO.sub.2, up to 2.5% P.sub.2 O.sub.5 and mixtures thereof, the composition being crystallizable and non-reducing when fired at 850.degree.-900.degree. C.(b) 30-5 wt % of a metal oxide of Al.sub.2 O.sub.3, ZrSiO.sub.4 and mixtures thereof,(c) 1-5 wt % of a metal oxide kerf additive of CoAl.sub.2 O.sub.4, Co/CrAl.sub.2 O.sub.4, CoO, CoCr.sub.2 O.sub.4, Cr.sub.2 O.sub.3, TiO.sub.2, and mixtures thereof,where the sum of the components a and b does not exceed 35% by weight of the total particulate admixture, and(d) optionally, 1-10 wt % of either a TCE reducing additive of zircon, mullite, silica, and mixtures thereof or a TCE increasing additive of CaZrO.sub.3, quartz, .alpha.-cristobalite and mixtures thereof.
摘要翻译:一种电介质组合物,其包含(a)65-94重量%的非还原非晶玻璃的细碎颗粒的混合物,其包含15-27%的ZnO,8-30%的碱土金属氧化物,包括7-21%的BaO,40 -60%SiO 2,3-14%Al 2 O 3,0-5%PbO和0.5-5%选自ZrO 2,至多2.5%P 2 O 5的金属氧化物及其混合物,当850℃烧制时该组合物是可结晶且不还原的 (b)30-5重量%的Al2O3,ZrSiO4的金属氧化物及其混合物,(c)1-5重量%的CoAl 2 O 4的金属氧化物切痕添加剂,Co / CrAl 2 O 4,CoO,CoCr 2 O 4 ,Cr 2 O 3,TiO 2及其混合物,其中组分a和b的总和不超过总颗粒混合物的35重量%,和(d)任选地,1-10重量%的锆离子的TCE还原添加剂 ,莫来石,二氧化硅及其混合物,或TCE增加添加剂CaZrO 3,石英,α-方英石及其混合物。
摘要:
A dielectric glass composition consisting essentially on a molar basis of 15-27% ZNO, 8-16% BaO, 40-60% SiO.sub.2, 3-14% Al.sub.2 O.sub.3, 0-5% PbO and 0.5-5% of a metal oxide selected from ZrO.sub.2, up to 2.5% P.sub.2 O.sub.5 and mixtures thereof, the composition being crystallizable and non-reducing when fired at 850.degree.-900.degree. C.
摘要翻译:基本上以15-27%ZNO,8-16%BaO,40-60%SiO 2,3-14%Al 2 O 3,0-5%PbO和0.5-5%选择的金属氧化物为基准的电介质玻璃组合物 从ZrO 2,高达2.5%的P 2 O 5及其混合物,当在850-900℃下烧制时该组合物是可结晶的和不还原的。
摘要:
Low-expansion devitrifying glass compositions exhibiting a negative-slope temperature coefficient of expansion over a temperature range from about 125.degree. C. to about 500.degree. C. are useful for the fabrication of thick film copper via-fill inks for multilayer printed-circuit boards.
摘要:
Partially devitrified porcelain compositions are provided which are comprised of a mixture, based on its oxide content, of barium oxide (BaO), magnesium oxide (MgO) or a mixture of magnesium oxide with certain other oxides (CaO,ZnO), boron trioxide (B.sub.2 O.sub.3) and slicon dioxide (SiO.sub.2). In accordance with this invention the porcelain compositions are applied to the metal core and fired to provide a partially devitrified porcelain coating on the metal core. The coating has a very low viscosity at its initial fusion point and then almost instantaneous high viscosity due to partial devitrification. The fired coating has a deformation temperature of at least 700.degree. C. and a high coefficient of thermal expansion of at least about 110.times.10.sup.-7 /.degree.C.
摘要:
A liquid crystal device includes a liquid crystal material encapsulated between two glass plates having electrodes on their inner surfaces. An illuminator is provided across the back of the liquid crystal device. The illuminator includes a radioactive material encapsulated between two glass plates. The inner surface of the illuminator plates are coated with a cathodoluminescent phosphor. One of the plates of the illuminator may be one of the plates of the liquid crystal device. The photons from the phosphor of the illuminator illuminate the liquid crystal device.
摘要:
Low-expansion devitrifying glass compositions exhibiting a negative-slope temperature coefficient of expansion over a temperature range from about 125.degree. C. to about 500.degree. C. are useful for the fabrication of thick film copper via-fill inks of multilayer printed-circuit boards.
摘要:
Improved copper conductor inks useful in the fabrication of multilevel circuits are disclosed. The inks comprise copper powder, a devitrifying glass frit selected from a zinc-calcium-aluminum-silicate glass frit, a zinc-magnesium-barium-aluminum-silicate glass frit and mixtures thereof, an adhesion promoting oxide, and a suitable organic vehicle. These inks are particularly adapted for applications where superior adhesion between the copper conductor ink and the underlying substrate or dielectric film is required.
摘要:
A novel devitrifying frit is disclosed which has a coefficient of expansion essentially the same as that of silicon. The subject frits have a high softening temperature and excellent reheat stability which make them useful in ink formulations for forming dielectric layers in multilayer circuitry. The frits are also suitable for use as a substrate material for direct mounting of silicon chips or for use in thick film via-fill inks.