초록 ▼

An electronic package comprising dielectric layers including a densified aluminum nitride (AlN) base layer and at least one densified AlN-borosilicate glass composite layer bonded thereto is described. Any of the dielectric layers may be metallized with conductive circuit patterns and can contain co

An electronic package comprising dielectric layers including a densified aluminum nitride (AlN) base layer and at least one densified AlN-borosilicate glass composite layer bonded thereto is described. Any of the dielectric layers may be metallized with conductive circuit patterns and can contain conductive vias. Production of this package is accomplished by hot pressing a greenware laminate comprising a densified base (e.g., AlN); at least one green sinterable sheet (e.g., AlN-borosilicate glass composite); and a green sheet of non-sinterable material (e.g., boron nitride [BN]). The respective green sheets comprise homogeneous mixtures of the ceramic powders and a binder, e.g., polyethylene. The polyethylene is burnt off during the hot press operation. Residual BN is removed by brushing and/or grit blasting, leaving the finished electronic package, all ceramic elements of which are densified. The package provides superior thermal conductivity, strength, dielectric properties, and silicon-compatibility.

대표청구항 ▼

An electronic package having a ceramic support structure comprising a densified AlN base layer and at least one densified AlN-borosilicate glass composite layer bonded thereto, said borosilicate glass comprising about 10 to 28 wt % B2O3, 60 81 wt % SiO2, 1 to 4 wt % Al2O3 and 2 to 10 wt % of one or

An electronic package having a ceramic support structure comprising a densified AlN base layer and at least one densified AlN-borosilicate glass composite layer bonded thereto, said borosilicate glass comprising about 10 to 28 wt % B2O3, 60 81 wt % SiO2, 1 to 4 wt % Al2O3 and 2 to 10 wt % of one or more members of the group Li2O, Na2O, K2O or CaO; and wherein the weight ratio of AlN to borosilicate glass is 1:0.45-0.70.