Majority Logic Sequential Latch With Non-Linear Polar Capacitors

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Solution Overview

Problem

Sequential circuits face challenges in reducing power consumption due to the dynamic power consumption associated with toggling transistors and extensive interconnects, which hinders the goal of lower power consumption in processors.

Innovation Solution

The use of non-linear polar capacitors in sequential circuits, such as 3-input majority gates and threshold gates, which eliminate the need for switching transistors and reduce interconnects, allowing for lower power operation and non-volatility, enabling processors to enter low power states without data loss.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If traditional sequential circuits use switching transistors and interconnects, then the circuit can perform sequential logic operations, but the dynamic power consumption increases

Engineering Contradiction:
Improvepower consumptionVSAvoidcircuit structure
Core Design Contradiction:
PowerVSDevice complexity

Solution Approach 1:

The patent extracts and eliminates the switching transistor components from the sequential circuit, replacing them with a non-linear polar capacitor that inherently provides both storage and switching functionality. This extraction of unnecessary components directly reduces dynamic power consumption while maintaining the essential sequential logic operations.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The non-linear polar capacitor is designed to perform multiple functions simultaneously: it acts as both the storage element and the switching element in the sequential circuit. This multi-functionality eliminates the need for separate switching transistors and interconnects, thereby reducing power consumption while maintaining circuit capability.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Use of energy by moving object

If processors operate at lower voltages to save battery power, then power consumption decreases, but data integrity may be compromised during low power states

Engineering Contradiction:
Improvebattery power consumptionVSAvoiddata integrity
Core Design Contradiction:
Use of energy by moving objectVSReliability

Solution Approach 1:

The patent utilizes the unique parameter characteristics of non-linear polar capacitors, specifically their ability to maintain stable voltage thresholds across varying operating conditions. This allows the circuit to reliably maintain data integrity even when operating at lower voltages, as the capacitor's non-linear characteristics provide inherent noise margins and stability.

Inventive Principle:
Principle #35Parameter changes

3Ease of operation

If sequential circuits use extensive interconnects to connect gates and transistors, then the circuit can be fully functional, but the power consumption and circuit area increase

Engineering Contradiction:
Improvecircuit functionalityVSAvoidcircuit area
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The patent merges the storage function and switching function into a single non-linear polar capacitor component, eliminating the need for separate gates, transistors, and extensive interconnects. This consolidation maintains full sequential logic functionality while dramatically reducing the circuit area and associated power consumption.

Inventive Principle:
Principle #5Merging (Combining)

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

This approach results in a significant reduction in power consumption, allowing processors to operate at lower voltages, achieve compact circuit designs, and maintain data integrity during low power states, with the non-linear polar capacitors providing intermittent operation and zero power drain when not in use.

Implementation Method 1

a first capacitor having a non-linear polar material and coupled to a first terminal of the ferroelectric capacitor

Methodology Applied
Scientific EffectNon-linear polar capacitor: Capacitance

Implementation Method 2

a second capacitor coupled to a second terminal of the ferroelectric capacitor, wherein the second capacitor comprises ferroelectric material

Methodology Applied
Scientific EffectFerroelectric:

Data Source

PatentUS11165430B1Majority logic gate based sequential circuit
Publication Date: 2021.11.02 KEPLER COMPUTING INC
  • US11165430B1 patent drawing
  • US11165430B1 patent drawing
  • US11165430B1 patent drawing

AI summary

A low power sequential circuit (e.g., latch) uses a non-linear polar capacitor to retain charge with fewer transistors than traditional CMOS sequential circuits. The sequential circuit includes a 3-input majority gate having first, second, and third inputs, and a first output. The sequential circuit includes a driver coupled to the first output, wherein the driver is to generate a second output. The sequential circuit further includes an exclusive-OR (XOR) gate to receive a clock and the second output, wherein the XOR gate is to generate a third output which couples to the second input, where the first input is to receive a data, and wherein the third input is to receive the second output.