Nano/Micro Diode Protrusion-Recess Structure for Durability

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Solution Overview

Problem

Current technologies face challenges in producing smaller, faster electronic devices, necessitating the development of new nanoscale materials and technologies for enhanced information storage and processing, particularly in nanoscience and nanotechnology, where conventional methods are limited in creating durable and cost-effective nano/micro-sized diodes.

Innovation Solution

A nano/micro-sized diode structure comprising a first electrode, a diode layer with a p-type semiconductor first layer and an n-type semiconductor second layer, and a second electrode, where the second layer has a recess corresponding to the first layer's protrusion, and a control layer for improved electrical signal generation and mechanical durability, along with a method involving a porous template for mass production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If conventional technologies are used to produce smaller electronic devices, then device size is reduced, but manufacturing precision and reliability deteriorate due to technological limitations

Engineering Contradiction:
Improvedevice sizeVSAvoidmanufacturing precision
Core Design Contradiction:
Length of moving objectVSManufacturing precision

Solution Approach 1:

The diode layer is segmented into multiple thin layers (first layer, second layer, control layer) rather than using a single thick layer. This segmentation allows each layer to be precisely controlled at nanometer thickness, achieving both miniaturization and manufacturing precision. The porous template is also segmented into multiple holes for parallel production.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The invention transitions from conventional planar diode structures to vertically stacked nanoscale layers. By utilizing the vertical dimension with thicknesses of 1-10 nm for each layer, the device achieves miniaturization while maintaining precise control over electrical properties through layer-by-layer fabrication.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Length of moving object

If conventional methods are used to create nano/micro-sized diodes, then device miniaturization is achieved, but durability and reliability worsen

Engineering Contradiction:
Improvedevice sizeVSAvoiddurability
Core Design Contradiction:
Length of moving objectVSReliability

Solution Approach 1:

The control layer is positioned between the n-type semiconductor layer and the second electrode to beforehand protect the junction region from electrical breakdown and physical damage. This protective layer prevents direct stress on the fragile nanoscale junction, ensuring durability during storage and transportation while maintaining the miniaturized structure.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Solution Approach 2:

The diode employs a composite structure with different semiconductor materials (p-type and n-type layers) and a control layer, creating a multi-material system that enhances reliability. The combination of materials with different properties provides both electrical functionality and mechanical robustness at the nanoscale.

Inventive Principle:
Principle #40Composite materials

3Productivity

If mass production of nano/micro-sized diodes is implemented, then productivity increases, but manufacturing precision may deteriorate

Engineering Contradiction:
Improvemass production capabilityVSAvoiduniformity
Core Design Contradiction:
ProductivityVSManufacturing precision

Solution Approach 1:

Multiple diodes are merged into a single porous template structure, with each hole containing a complete diode stack. This combining approach enables parallel production of many identical diodes with uniform dimensions, achieving both high productivity and manufacturing precision through simultaneous fabrication.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The porous template serves multiple functions: it defines the dimensions of multiple diodes, provides structural support during fabrication, and enables parallel processing. This universal tool allows mass production while maintaining uniformity across all produced devices.

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

Data Source

PatentUS8471279B2Nano/micro-sized diode and method of preparing the same
Publication Date: 2013.06.25 SAMSUNG ELECTRONICS CO LTD
  • US8471279B2 patent drawing
  • US8471279B2 patent drawing
  • US8471279B2 patent drawing

AI summary

A nano/micro-sized diode and a method of preparing the same, the diode including: a first electrode; a second electrode; and a diode layer that is disposed between the first electrode and the second electrode. The diode layer includes a first layer and a second layer. The first layer is disposed on the first electrode and has a first surface that is electrically connected to the first electrode, and an opposing second surface that has a protrusion. The second layer is disposed between the first layer and the second electrode and has a first surface having a recess that corresponds to the protrusion, and an opposing second surface that is electrically connected to the second electrode.