Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
SG

Subhash Gupta

CMChartered Semiconductor Manufacturing: 50 patents #9 of 840Top 2%
AMAMD: 35 patents #255 of 9,279Top 3%
TITexas Instruments: 4 patents #3,281 of 12,488Top 30%
ANAndersen: 2 patents #95 of 282Top 35%
Massachusetts: #256 of 88,656 inventorsTop 1%
Overall (All Time): #14,937 of 4,157,543Top 1%
99 Patents All Time

Issued Patents All Time

Showing 26–50 of 99 patents

Patent #TitleCo-InventorsDate
6394114 Method for stripping copper in damascene interconnects Simon Chooi, Paul Ho, Mei Sheng Zhou 2002-05-28
6391732 Method to form self-aligned, L-shaped sidewall spacers Yelehanka Ramachandramurthy, Vijai Kumar Chhagan 2002-05-21
6391783 Method to thin down copper barriers in deep submicron geometries by using alkaline earth element, barrier additives, or self assembly technique John Sudijono, Yakub Aliyu, Mei Sheng Zhou, Simon Chooi, Sudipto Ranendra Roy +2 more 2002-05-21
6378759 Method of application of conductive cap-layer in flip-chip, COB, and micro metal bonding Kwok Keung Paul Ho, Simon Chooi, Yi Xu, Yakub Aliyu, Mei Sheng Zhou +2 more 2002-04-30
6380084 Method to form high performance copper damascene interconnects by de-coupling via and metal line filling Yeow Kheng Lim, Alex See, Cher Liang Cha, Wang Ling Goh, Man Siu Tse 2002-04-30
6380087 CMP process utilizing dummy plugs in damascene process Mei Sheng Zhou, Ramasamy Chockalingam 2002-04-30
6372636 Composite silicon-metal nitride barrier to prevent formation of metal fluorides in copper damascene Simon Chooi, Mei Sheng Zhou, Sangki Hong 2002-04-16
6368958 Method to deposit a cooper seed layer for dual damascence interconnects Paul Ho, Mei Sheng Zhou, Simon Chooi 2002-04-09
6365508 Process without post-etch cleaning-converting polymer and by-products into an inert layer Mei Sheng Zhou, John Sudijono, Sudipto Ranendra Roy, Paul Ho, Xu Yi +2 more 2002-04-02
6365320 Process for forming anti-reflective film for semiconductor fabrication using extremely short wavelength deep ultraviolet photolithography David K. Foote 2002-04-02
6358821 Method of copper transport prevention by a sputtered gettering layer on backside of wafer Simon Chooi, Sudipto Ranendra Roy, Paul Ho, Xu Yi, Yakub Aliyu +2 more 2002-03-19
6352917 Reversed damascene process for multiple level metal interconnects Mei Sheng Zhou, Simon Chooi, Sangki Hong 2002-03-05
6350689 Method to remove copper contamination by using downstream oxygen and chelating agent plasma Paul Ho, Simon Chooi, Yakub Aliyu, Mei Sheng Zhou, John Sudijono +2 more 2002-02-26
6350675 Integration of silicon-rich material in the self-aligned via approach of dual damascene interconnects Simon Chooi, Mei Sheng Zhou, Yi Xu 2002-02-26
6348407 Method to improve adhesion of organic dielectrics in dual damascene interconnects Yi Xu, Simon Chooi, Mei Sheng Zhou 2002-02-19
6346468 Method for forming an L-shaped spacer using a disposable polysilicon spacer Yelehanka Ramachandramurthy Pradeep, Vijai Chhagan 2002-02-12
6340608 Method of fabricating copper metal bumps for flip-chip or chip-on-board IC bonding on terminating copper pads Simon Chooi, Yakub Aliyu, Mei Sheng Zhou, John Sudijono, Sudipto Ranendra Roy +2 more 2002-01-22
6331732 Via structure in an integrated circuit utilizing a high conductivity metal interconnect and a method for manufacturing same Susan H. Chen 2001-12-18
6313018 Process for fabricating semiconductor device including antireflective etch stop layer Fei Wang, David K. Foote, Myron R. Cagan 2001-11-06
6309982 Method for minimizing copper diffusion by doping an inorganic dielectric layer with a reducing agent Simon Chooi, Yi Xu, Yakub Aliyu, Mei Sheng Zhou, John Sudijono +2 more 2001-10-30
6284657 Non-metallic barrier formation for copper damascene type interconnects Simon Chooi, Mei Sheng Zhou, Sangki Hong 2001-09-04
6274499 Method to avoid copper contamination during copper etching and CMP Paul Ho, Mei Sheng Zhou, Ramasamy Chockalingam 2001-08-14
6261954 Method to deposit a copper layer Paul Ho, Mei Sheng Zhou, Simon Chooi 2001-07-17
6261955 Application of vapor phase HFACAC-based compound for use in copper decontamination and cleaning processes Yakub Aliyu, Simon Chooi, Mei Sheng Zhou, John Sudijono, Sudipto Ranendra Roy +2 more 2001-07-17
6255266 Alkyldione peroxides as cleaning solutions for wafer fabs Simon I, Mei Sheng Zhou, Paul Ho 2001-07-03