Dual-Function Transistor Circuit for Logic and Embedded Memory Driving
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Solution Overview
Problem
Existing integrated circuits (ICs) face challenges in efficiently integrating transistors with dual functionality for both logic and embedded memory drivers, leading to increased device count and power consumption.
Innovation Solution
A new circuit architecture is developed using transistors with dynamic dual functionality, where a field-effect transistor is connected in series with bistable resistive elements to switch between resistance states, allowing the same transistor to operate in both logic and memory driver modes, reducing the number of devices and optimizing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate transistors are used for logic and memory drivers, then circuit functionality is achieved, but device count increases and power consumption rises
Solution Approach 1:
The patent implements a universal transistor design that can operate in both logic mode and memory driver mode by dynamically reconfiguring its connectivity through switching elements. The same physical transistor instance is shared between logic circuitry and memory driver circuitry, with mode switching achieved through control signals that reconfigure the transistor's electrical connections. This multi-functionality approach directly reduces device count while maintaining full circuit functionality.
Solution Approach 2:
The patent employs dynamic reconfiguration of transistor connectivity using switching elements (such as transmission gates or MOSFET switches) that can change the electrical path based on operational mode. Control signals dynamically alter which circuit the transistor is connected to - either the logic circuit or the memory driver circuit - enabling the transistor to adapt its function in real-time without physical relocation or permanent wiring changes.
2Adaptability or versatility
If separate transistors are used for logic and memory drivers, then circuit functionality is achieved, but power consumption increases
Solution Approach 1:
By having transistors serve dual purposes as both logic elements and memory drivers through dynamic reconfiguration, the patent eliminates the need for separate dedicated transistor groups. This reduces the total active transistor population, thereby lowering dynamic power consumption proportional to the reduced device count while maintaining complete operational capability for both logic and memory functions.
Solution Approach 2:
The patent merges the logic circuit and memory driver circuit into a single shared circuit resource pool, where transistors are dynamically allocated to either logic or memory driver functions based on instantaneous needs. This consolidation eliminates redundant transistor instances and their associated power consumption, achieving energy efficiency through resource sharing and elimination of duplicate functional blocks.
3Area of stationary object
If transistor density is increased, then chip area is reduced, but device functionality must be maintained
Solution Approach 1:
The patent uses dynamic switching mechanisms that allow transistors to change their functional assignment on-the-fly between logic and memory driver roles. This dynamic reconfigurability enables high-density transistor packing because the same physical transistors can serve multiple functional purposes sequentially, reducing the total chip area required compared to static designs where dedicated transistors would be needed for each function.
Solution Approach 2:
By designing transistors with universal functionality through dynamic reconfiguration, the patent achieves higher effective transistor density. The same physical transistor instances can be allocated to different circuits based on operational requirements, allowing more functional capability per unit chip area while maintaining full adaptability for both logic and memory driver operations through control signal management.
Data Source
AI summary
Embodiments of the invention include a transistor coupled to a memory element, the memory element being in series with a first bistable resistive element that is configured to switch between a first low resistance state and a first high resistance state. A logic circuit is coupled to the transistor via a series connection to a second bistable resistive element, the second bistable resistive element being configured to switch between a second low resistance state and a second high resistance state.