Patent ID: 8043433
Filing Date: 2011-10-25
Classification: B29C,B29K,C23C,H01L,Y10T

Abstract:
1. A multilayer electrostatic chuck, comprising: a high-purity polyaryletherketone member having a low concentration of metallic ions, wherein the high-purity polyaryletherketone member is a dielectric material within the electrostatic chuck, and wherein the high-purity polyaryletherketone member includes no greater than one part per million of any one of aluminum, antimony, arsenic, barium, beryllium, bismuth, boron, cadmium, calcium, chromium, cobalt, copper, gallium, germanium, hafnium, indium, iron, lead, lithium, mercury, magnesium, manganese, molybdenum, nickel, niobium, phosphorus, potassium, rubidium, scandium, selenium, silicon, silver, sodium, strontium, sulfur, tantalum, tellurium, thallium, tin, titanium, tungsten, vanadium, yttrium, zinc, and zirconium; an electrode preformed and embedded within the high-purity polyaryletherketone member; and a substrate platen, wherein the high-purity polyaryletherketone member is thermoplastically bonded to the substrate platen.