CMOS Semiconductor Stack With Hydrogen-Blocking Insulation
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Solution Overview
Problem
Conventional semiconductor devices face challenges in achieving high functionality, reliability, low power consumption, and narrow bezel designs for display devices, particularly in meeting the increasing demand for screen occupancy and reduced bezel sizes in portable information terminals and television devices.
Innovation Solution
The semiconductor device incorporates a p-type and n-type transistor configuration with polycrystalline silicon and metal oxide semiconductor layers, respectively, where the insulating layers are designed to minimize hydrogen diffusion, and an amplifier circuit is included to control potentials and enhance driving capability, allowing for efficient power management and narrow bezel designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If driver circuits are formed using transistors having a single polarity, then device complexity is reduced, but functionality is limited
Solution Approach 1:
The patent combines both p-type and n-type transistors within the same semiconductor device, integrating complementary metal oxide semiconductor (CMOS) structures. This merging of opposite-polarity transistors enables full CMOS logic functionality while maintaining a unified device architecture, resolving the contradiction between simplified structure and limited functionality.
Solution Approach 2:
The semiconductor device is designed with universal transistor structures that can perform multiple logical functions through different circuit configurations. The p-type and n-type transistors are structured to support both logic operations and driver functions, enabling the device to serve multiple purposes within a single integrated structure.
2Ease of manufacture
If insulating layers with high hydrogen diffusion are used, then manufacturing is simplified, but reliability decreases due to hydrogen contamination
Solution Approach 1:
The patent applies different insulating layer materials with varying hydrogen diffusion characteristics to different regions or layers within the device structure. By selecting specific insulating materials for critical areas where hydrogen contamination must be prevented, the device achieves high reliability while maintaining manufacturability through standardized fabrication processes.
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 configuration results in a highly functional, reliable, and low-power semiconductor device that enables narrow bezel displays with improved driving capability and reduced power consumption, addressing the limitations of conventional techniques.
Implementation Method 1
The first insulating layer is less likely to diffuse hydrogen than the second insulating layer
Data Source
AI summary
A highly functional semiconductor device is provided. The semiconductor device includes a first transistor and a second transistor. The first transistor includes a first semiconductor layer, a first gate electrode, a first electrode, and a second electrode. The second transistor includes a second semiconductor layer, a second gate electrode, a third electrode, and a fourth electrode. The first gate electrode and the second gate electrode are connected to each other, and the second electrode and the third electrode are connected to each other. A first insulating layer, a second insulating layer, and a second semiconductor layer are stacked over the first semiconductor layer. The first insulating layer is less likely to diffuse hydrogen than the second insulating layer. The second insulating layer contains oxide, the first semiconductor layer contains polycrystalline silicon, and the second semiconductor layer contains a metal oxide. The first transistor is a p-channel transistor and the second transistor is an n-channel transistor.