Invention Grant
US09431127B2 Circuit and system of using junction diode as program selector for metal fuses for one-time programmable devices 有权
使用结二极管作为一次性可编程器件的金属熔丝的程序选择器的电路和系统

  • Patent Title: Circuit and system of using junction diode as program selector for metal fuses for one-time programmable devices
  • Patent Title (中): 使用结二极管作为一次性可编程器件的金属熔丝的程序选择器的电路和系统
  • Application No.: US13970562
    Application Date: 2013-08-19
  • Publication No.: US09431127B2
    Publication Date: 2016-08-30
  • Inventor: Shine C. Chung
  • Applicant: Shine C. Chung
  • Main IPC: G11C7/00
  • IPC: G11C7/00 G11C17/16 G11C17/06
Circuit and system of using junction diode as program selector for metal fuses for one-time programmable devices
Abstract:
Junction diodes fabricated in standard CMOS logic processes can be used as program selectors for One-Time Programmable (OTP) devices. An OTP device can have at least one OTP element coupled to at least one diode in a memory cell. With a metal fuse is used by the OTP element, at least one contact and/or a plurality of vias can be built (possibly with use of one or more jumpers) in the program path to generate more Joule heat to assist with programming. The jumpers are conductive and can be formed of metal, metal gate, local interconnect, polymetal, etc. The metal fuse can also have an extended area that is longer than required by design rules for enhanced programmability. The OTP element can be polysilicon, silicided polysilicon, silicide, polymetal, metal, metal alloy, local interconnect, thermally isolated active region, CMOS gate, or combination thereof.
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