Invention Grant
US5442589A Fuse circuitry having physical fuse and non-volatile memory cell coupled
to a detector
失效
保险丝电路具有耦合到检测器的物理熔丝和非易失性存储单元
- Patent Title: Fuse circuitry having physical fuse and non-volatile memory cell coupled to a detector
- Patent Title (中): 保险丝电路具有耦合到检测器的物理熔丝和非易失性存储单元
-
Application No.: US143185Application Date: 1993-10-26
-
Publication No.: US5442589APublication Date: 1995-08-15
- Inventor: Jacek Kowalski
- Applicant: Jacek Kowalski
- Applicant Address: FRX Gemenos
- Assignee: Gemplus Card International
- Current Assignee: Gemplus Card International
- Current Assignee Address: FRX Gemenos
- Priority: FRX9212969 19921029
- Main IPC: H01L21/82
- IPC: H01L21/82 ; G06K19/07 ; G11C16/04 ; G11C17/16 ; H01L21/8247 ; H01L23/525 ; H01L27/10 ; H01L27/115
Abstract:
A fuse circuit including: a physical fuse; a detection circuit for the detection of the state of the physical fuse; and an electrically programmable non-volatile memory cell associated with the physical fuse, programmed when the physical fuse is blown and connected to the detection circuit so that, when the electrically programmable non-volatile memory cell is programmed, the electrically programmable non-volatile memory cell confirms the blown state of the physical fuse even if the characteristics of the blown state of the physical fuse change with time.
Public/Granted literature
- US4883715A Elastic rotatable member Public/Granted day:1989-11-28
Information query
IPC分类:
