Patent ID: 7667944

Claim:
An electrostatic chuck for securing work pieces with an electrostatic charge, the chuck comprising: a top dielectric layer designed to be in contact with a workpiece, said top layer having a dielectric constant that is from about 5 to about 10, and having a resistivity between about 1E6 ohm.m and about 1E15 ohm.m, the top dielectic layer being in direct contact with an intermediate layer having a resistivity of from about 1.5E-8 ohm.m to about 1 ohm.m, and a bottom polyceramic adhesive layer, selected from the group consisting of polyimids, fluoropolymers, and siloxanes, wherein said polyceramic adhesive layer having a dielectric constant that is preferably from about 2 to about 7, and having a resistivity of from about 1E12 ohm.m to about 1E15 ohm.m, and wherein the bottom polyceramic adhesive layer is in direct contact with the intermediate layer on one side and a metal layer on the other side, said metal layer comprising a thermal coating of a dielectric material selected from the group consisting of: alumina, yttria, magnesia, titania, zirconium, alloyed dielectric ceramics, and combinations thereof.