Inventor · Tangxia, CN

Xun Chen

64Patents
22h-index
123Co-inventors
91Inventor score

Filing activity: May 21, 1998 → Mar 12, 2025

Most-cited inventions

PatentTitleAreaCited byStatus
US7003758B2 System and method for lithography simulation Physics 203 Expired
US6807503B2 Method and apparatus for monitoring integrated circuit fabrication Electricity 88 Expired
US6828542B2 System and method for lithography process monitoring and control Physics 86 Expired
US6803554B2 System and method for lithography process monitoring and control Physics 73 Expired
US6969837B2 System and method for lithography process monitoring and control Physics 72 Expired
US7053355B2 System and method for lithography process monitoring and control Electricity 68 Expired
US6884984B2 System and method for lithography process monitoring and control Physics 67 Expired
US7120895B2 System and method for lithography simulation Physics 62 Expired
US6806456B1 System and method for lithography process monitoring and control Physics 62 Expired
US6820028B2 Method and apparatus for monitoring integrated circuit fabrication Electricity 60 Expired
US6969864B2 System and method for lithography process monitoring and control Physics 58 Expired
US7114145B2 System and method for lithography simulation Physics 55 Expired
US7111277B2 System and method for lithography simulation Physics 55 Expired
US6959255B2 Method and apparatus for monitoring integrated circuit fabrication Electricity 55 Expired
US7117477B2 System and method for lithography simulation Physics 54 Expired
US7117478B2 System and method for lithography simulation Physics 54 Expired
US6879924B2 Method and apparatus for monitoring integrated circuit fabrication Electricity 44 Expired
US6892156B2 Method and apparatus for monitoring integrated circuit fabrication Electricity 44 Expired
US7695876B2 Method for identifying and using process window signature patterns for lithography process control Physics 42 Active
US6064486A Systems, methods and computer program products for detecting the position of a new alignment mark on a substrate based on fitting to sample alignment signals Physics 41 Expired
US9690474B2 User interface, device and method for providing an improved text input Physics 29 Active
US8057967B2 Process window signature patterns for lithography process control Physics 27 Active
US7233874B2 Method and apparatus for monitoring integrated circuit fabrication Electricity 13 Expired
US7873937B2 System and method for lithography simulation Physics 8 Active
US8318391B2 Process window signature patterns for lithography process control Physics 6 Active

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