Semiconductor Device Dynamic Reference Voltage Calibration
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Solution Overview
Problem
Current semiconductor devices lack compatibility and operational flexibility to work seamlessly with different types of semiconductor systems, as they rely on fixed operation mode information and external clock signals, limiting their adaptability and efficiency.
Innovation Solution
The semiconductor device incorporates a flag signal generating circuit, reference voltage generating circuit, and buffer systems to generate and adjust internal signals based on external commands and control codes, allowing for flexible operation mode settings and calibration codes for various frequencies of external clock signals, enabling compatibility with diverse semiconductor systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed operation mode information is used, then device simplicity is maintained, but adaptability to different semiconductor systems deteriorates
Solution Approach 1:
The operation mode information is segmented into multiple storage circuits (first storage circuit, second storage circuit, third storage circuit) that can be independently configured. Each storage circuit stores specific operation modes for different frequency ranges, allowing the device to adapt to different semiconductor systems by selectively enabling appropriate segments without increasing overall structural complexity
Solution Approach 2:
The storage circuits are designed to store multiple types of operation mode information (first operation mode information, second operation mode information, third operation mode information) that can be universally applied across different semiconductor systems. This multi-functionality allows a single device structure to serve multiple system compatibility requirements
2Adaptability or versatility
If operation mode information is stored in multiple storage circuits, then adaptability to different frequencies is improved, but device complexity increases
Solution Approach 1:
Each storage circuit is assigned specific local quality characteristics - the first storage circuit handles first operation mode information, the second handles second operation mode information, and the third handles third operation mode information. This localized functional assignment allows each circuit to be optimized for its specific frequency range while maintaining overall system adaptability
Solution Approach 2:
The device dynamically selects which storage circuit to use based on the detected external clock frequency. The operation mode information storage structure transitions from a static single-circuit design to a dynamic multi-circuit selection system, where the appropriate storage circuit is activated based on real-time frequency conditions, improving adaptability without permanently increasing complexity
3Measurement precision
If dynamic reference voltage adjustment is implemented, then measurement precision for signal buffering is improved, but device complexity increases
Solution Approach 1:
The reference voltage generating circuit implements feedback by detecting the external clock frequency and automatically adjusting the reference voltage level accordingly. The circuit receives frequency information, selects the appropriate reference voltage from stored operation mode information, and applies it to the buffer circuit, creating a closed-loop system that maintains high measurement precision without manual intervention
Solution Approach 2:
The reference voltage generating circuit performs self-service by automatically configuring the appropriate reference voltage based on detected frequency conditions. Instead of requiring external configuration or complex control logic, the circuit autonomously selects and applies the correct voltage level from its internal storage, reducing overall system complexity while maintaining precision
Data Source
AI summary
A semiconductor device includes a flag signal generating circuit, a reference voltage generating circuit, and a first buffer. The flag signal generating circuit generates a flag signal based on an internal command and a training control code which are extracted from an external signal. The reference voltage generating circuit receives a set code based on the flag signal, an input control code and an output control code, and generates a reference voltage whose level is set based on the set code. The first buffer buffers the external signal based on the reference voltage to generate an internal signal, and generates a calibration code from the internal signal based on the flag signal to output the calibration code.