Patent assignee · US · COMPANY

XILINX, INC.

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4,981Patents
3,146Active
4,981Granted
60Portfolio score

Filing activity: Sep 26, 1984 → Nov 14, 2023 · 1,127 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US4870302A Configurable electrical circuit having configurable logic elements and configurable interconnects Electricity 883 Expired
US4706216A Configurable logic element Electricity 530 Expired
US5426378A Programmable logic device which stores more than one configuration and means for switching configurations Electricity 506 Expired
US4642487A Special interconnect for configurable logic array Electricity 455 Expired
US6950771B1 Correlation of electrical test data with physical defect data Physics 423 Expired
US6917219B2 Multi-chip programmable logic device having configurable logic circuitry and configuration data storage on different dice Electricity 394 Expired
US5646545A Time multiplexed programmable logic device Electricity 377 Expired
US5914616A FPGA repeatable interconnect structure with hierarchical interconnect lines Electricity 373 Expired
USRE34363E Configurable electrical circuit having configurable logic elements and configurable interconnects General 372 Expired
US5469003A Hierarchically connectable configurable cellular array Electricity 367 Expired
US5883525A FPGA architecture with repeatable titles including routing matrices and logic matrices Electricity 360 Expired
US5744979A FPGA having logic cells configured by SRAM memory cells and interconnect configured by antifuses Electricity 330 Expired
US5349250A Logic structure and circuit for fast carry Physics 321 Expired
US6864156B1 Semiconductor wafer with well contacts on back side Electricity 318 Expired
US6091263A Rapidly reconfigurable FPGA having a multiple region architecture with reconfiguration caches useable as data RAM Electricity 318 Expired
US7068072B2 Integrated circuit with interface tile for coupling to a stacked-die second integrated circuit Electricity 299 Expired
US5343406A Distributed memory architecture for a configurable logic array and method for using distributed memory Electricity 291 Expired
US4758985A Microprocessor oriented configurable logic element Electricity 282 Expired
US5880598A Tile-based modular routing resources for high density programmable logic device Electricity 282 Expired
US5825202A Integrated circuit with field programmable and application specific logic areas Electricity 277 Expired
US6011407A Field programmable gate array with dedicated computer bus interface and method for configuring both Electricity 273 Expired
US6084429A PLD having a window pane architecture with segmented and staggered interconnect wiring between logic block arrays Electricity 272 Expired
US5430687A Programmable logic device including a parallel input device for loading memory cells Electricity 272 Expired
US6150838A FPGA configurable logic block with multi-purpose logic/memory circuit Electricity 271 Expired
US6480954B2 Method of time multiplexing a programmable logic device Electricity 266 Expired

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.