Inventor · Santa Clara, CA, US

Haichun Yang

15Patents
4h-index
20Co-inventors
56Inventor score

Filing activity: Sep 25, 2007 → Nov 22, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
US7871926B2 Methods and systems for forming at least one dielectric layer Electricity 77 Active
US7585762B2 Vapor deposition processes for tantalum carbide nitride materials Electricity 20 Active
US7780793B2 Passivation layer formation by plasma clean process to reduce native oxide growth Electricity 16 Active
US8252696B2 Selective etching of silicon nitride Electricity 4 Active
US10692730B1 Silicon oxide selective dry etch process Electricity 1 Active
US8318605B2 Plasma treatment method for preventing defects in doped silicon oxide surfaces during exposure to atmosphere Electricity 1 Active
US7989339B2 Vapor deposition processes for tantalum carbide nitride materials Electricity 1 Active
US7678298B2 Tantalum carbide nitride materials by vapor deposition processes Electricity 0 Active
US11183397B2 Selective etch process using hydrofluoric acid and ozone gases Electricity 0 Active
US11251050B2 Silicon oxide selective dry etch process Electricity 0 Active
US11791166B2 Selective etch process using hydrofluoric acid and ozone gases Electricity 0 Active
US11164727B2 Processing of workpieces using hydrogen radicals and ozone gas Electricity 0 Active
US11315801B2 Processing of workpieces using ozone gas and hydrogen radicals Electricity 0 Active
US7977246B2 Thermal annealing method for preventing defects in doped silicon oxide surfaces during exposure to atmosphere Electricity 0 Active
US11791181B2 Methods for the treatment of workpieces Electricity 0 Active

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