Anti-Fuse Circuit With Real-Time Programming State Verification
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Solution Overview
Problem
Existing anti-fuse circuits lack real-time verification capabilities, preventing accurate assessment of anti-fuse unit programming states.
Innovation Solution
An anti-fuse circuit with a programming circuit, read unit, and verification control unit that includes transistors and logic gates to control electrical connections for real-time verification of anti-fuse unit programming states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If real-time verification of anti-fuse unit programming state is implemented, then verification accuracy and speed are improved, but device complexity increases
Solution Approach 1:
The verification control unit merges the verification function with the existing programming circuit by sharing the programming signal line and using the same anti-fuse unit for both programming and verification operations. This integration allows real-time verification without adding separate verification hardware, thus improving verification accuracy while controlling device complexity.
Solution Approach 2:
The anti-fuse unit and programming circuit are designed to serve multiple functions: programming the anti-fuse unit and verifying its programming state. The verification control unit uses the same programming signal to control both programming and verification modes, making the circuit multi-functional and reducing overall device complexity while enabling real-time verification.
2Productivity
If real-time verification capability is added, then verification speed is improved, but device complexity increases
Solution Approach 1:
The verification operation is performed continuously and immediately after programming without requiring separate verification steps or external testing equipment. The verification control unit enables continuous verification action by using the same signal lines and circuit components for both programming and verification, thereby improving verification speed while avoiding additional complexity.
Solution Approach 2:
The circuit performs self-verification by using its own internal components (programming signal, verification control unit, read unit) to verify its own programming state without requiring external test equipment. This self-service capability improves verification speed and reduces device complexity by eliminating the need for additional external verification hardware.
3Reliability
If verification control unit with transistors and logic gates is implemented, then verification capability is improved, but device complexity increases
Solution Approach 1:
The verification control unit implements feedback by using the programming signal as both the programming control and the verification control. The read unit reads the state of the anti-fuse unit and provides feedback information about the programming status. This feedback mechanism improves reliability of programming state verification while keeping the control unit complexity manageable by using simple signal routing and transistor-based control.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables real-time verification of anti-fuse unit programming, ensuring accurate and swift detection of correct or incorrect programming without the need for additional testing equipment.
Implementation Method 1
Writing information to the anti-fuse element is performed by dielectric breakdown caused by application of high voltage
Implementation Method 2
when a programming breakdown occurs, a conduction channel will be formed at both ends of the cell, through which current can pass
Data Source
AI summary
An embodiment of the present disclosure provides an anti-fuse circuit, including: an anti-fuse unit; a programming circuit connected to the anti-fuse unit, and the programming circuit performs programming of the anti-fuse unit according to the programming control signal and the programming signal; the read unit reads the anti-fuse unit to obtain a data signal; the verification control unit controls the electrical connection between the reading unit and the anti-fuse unit according to the verification enable signal and the programming signal of the anti-fuse unit, when verifying the programming state of the anti-fuse unit. When the anti-fuse circuit verifies the programming state of the anti-fuse unit, it controls the electrical connection between the read unit and the anti-fuse unit according to the verification enable signal and the programming signal of the anti-fuse unit, to realize real-time verification of programming status.