Inventor · Portland, OR, US

Evan E. Patton

39Patents
25h-index
42Co-inventors
85Inventor score

Filing activity: Jun 2, 1988 → Oct 17, 2017

Most-cited inventions

PatentTitleAreaCited byStatus
US6156167A Clamshell apparatus for electrochemically treating semiconductor wafers Electricity 250 Expired
US6074544A Method of electroplating semiconductor wafer using variable currents and mass transfer to obtain uniform plated layer Emerging Cross-Sectional Technologies 203 Expired
US6099702A Electroplating chamber with rotatable wafer holder and pre-wetting and rinsing capability Chemistry; Metallurgy 157 Expired
US6139712A Method of depositing metal layer Electricity 152 Expired
US6162344A Method of electroplating semiconductor wafer using variable currents and mass transfer to obtain uniform plated layer Emerging Cross-Sectional Technologies 152 Expired
US6527920B1 Copper electroplating apparatus Electricity 147 Expired
US6159354A Electric potential shaping method for electroplating Chemistry; Metallurgy 146 Expired
US6800187B1 Clamshell apparatus for electrochemically treating wafers Chemistry; Metallurgy 141 Expired
US6110346A Method of electroplating semicoductor wafer using variable currents and mass transfer to obtain uniform plated layer Emerging Cross-Sectional Technologies 131 Expired
US6402923B1 Method and apparatus for uniform electroplating of integrated circuits using a variable field shaping element Emerging Cross-Sectional Technologies 102 Expired
US6773571B1 Method and apparatus for uniform electroplating of thin metal seeded wafers using multiple segmented virtual anode sources Chemistry; Metallurgy 95 Expired
US6309981A Edge bevel removal of copper from silicon wafers Electricity 91 Expired
US6551487B1 Methods and apparatus for controlled-angle wafer immersion Emerging Cross-Sectional Technologies 87 Expired
US6193859A Electric potential shaping apparatus for holding a semiconductor wafer during electroplating Chemistry; Metallurgy 74 Expired
US6964792B1 Methods and apparatus for controlling electrolyte flow for uniform plating Chemistry; Metallurgy 73 Expired
US6890416B1 Copper electroplating method and apparatus Electricity 67 Expired
US6755946B1 Clamshell apparatus with dynamic uniformity control Chemistry; Metallurgy 42 Expired
US6436249B1 Clamshell apparatus for electrochemically treating semiconductor wafers Electricity 39 Expired
US6589401B1 Apparatus for electroplating copper onto semiconductor wafer Electricity 39 Expired
US6946065B1 Process for electroplating metal into microscopic recessed features Electricity 34 Expired
US4994400A Method of fabricating a semiconductor device using a tri-layer structure and conductive sidewalls Emerging Cross-Sectional Technologies 31 Expired
US7033465B1 Clamshell apparatus with crystal shielding and in-situ rinse-dry Chemistry; Metallurgy 29 Expired
US5029117A Method and apparatus for active pyrometry Physics 28 Expired
US6471845B1 Method of controlling chemical bath composition in a manufacturing environment Emerging Cross-Sectional Technologies 26 Expired
US7189647B2 Sequential station tool for wet processing of semiconductor wafers Electricity 25 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.