Non-Linear Polar Threshold Logic Gates With Fewer Transistors

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Solution Overview

Problem

Traditional multi-input logic gates consume high power due to the large number of transistors and interconnects, making it challenging to achieve low power consumption, especially in battery-powered devices.

Innovation Solution

The development of non-linear polar material-based logic gates, including majority and threshold gates, which use non-ferroelectric capacitors and non-linear polar material capacitors to reduce the number of transistors and interconnects, allowing for lower power consumption and compact design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If traditional multi-input logic gates are used, then logic function is achieved, but power consumption increases due to large number of transistors and interconnects

Engineering Contradiction:
Improvepower consumptionVSAvoidnumber of transistors and interconnects
Core Design Contradiction:
Use of energy by moving objectVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the switching transistor components from traditional logic gate architecture. By using a non-linear polar material-based capacitor instead of multiple transistors, the invention removes the harmful element (excessive transistor count) while preserving the logic gate functionality. This extraction principle directly reduces both the number of components and power consumption.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent substitutes the mechanical/electronic switching mechanism (transistors) with a non-linear polar material-based capacitive mechanism. The non-linear polar material capacitor inherently provides the logic function through its non-linear current-voltage characteristics, replacing the need for complex transistor switching networks and reducing power consumption significantly.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

2Use of energy by moving object

If non-linear polar material-based logic gates are used, then power consumption is reduced, but device complexity changes requiring new material implementation

Engineering Contradiction:
Improvepower consumptionVSAvoidimplementation complexity
Core Design Contradiction:
Use of energy by moving objectVSEase of manufacture

Solution Approach 1:

The patent changes the fundamental operating parameters by using non-linear polar material with specific non-linear current-voltage characteristics. This material parameter change enables the capacitor to perform logic functions that traditionally required multiple transistors, thereby reducing power consumption while the implementation follows standard capacitor fabrication processes.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The invention employs non-linear polar material as a composite or specialized material within the capacitor structure. This material provides the necessary non-linear electrical characteristics to achieve logic gate functionality with reduced component count and lower power consumption, while being integratable into existing semiconductor manufacturing processes.

Inventive Principle:
Principle #40Composite materials

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

These logic gates achieve significant power reduction by eliminating switching transistors and minimizing interconnects, enabling devices to operate at lower voltages and enter low-power states without data loss, while maintaining performance.

Implementation Method 1

a capacitor comprising non-linear polar material. The second terminal of the capacitor provides the output of the logic gate

Methodology Applied
Scientific EffectNon-linear polar material: Dielectric

Data Source

PatentUS11374574B2Linear input and non-linear output threshold logic gate
Publication Date: 2022.06.28 KEPLER COMPUTING INC
  • US11374574B2 patent drawing
  • US11374574B2 patent drawing
  • US11374574B2 patent drawing

AI summary

A new class of logic gates are presented that use non-linear polar material. The logic gates include multi-input majority gates and threshold gates. Input signals in the form of analog, digital, or combination of them are driven to first terminals of non-ferroelectric capacitors. The second terminals of the non-ferroelectric capacitors are coupled to form a majority node. Majority function of the input signals occurs on this node. The majority node is then coupled to a first terminal of a capacitor comprising non-linear polar material. The second terminal of the capacitor provides the output of the logic gate, which can be driven by any suitable logic gate such as a buffer, inverter, NAND gate, NOR gate, etc. Any suitable logic or analog circuit can drive the output and inputs of the majority logic gate. As such, the majority gate of various embodiments can be combined with existing transistor technologies.