Varistor Electrode Configuration for Adjustable Breakdown Voltage
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Solution Overview
Problem
Existing varistors lack the ability to adjust various properties such as breakdown voltage, capacitance, ESD noise absorption, and maximum current to suit different applications, posing risks to semiconductor devices and circuits from surges and electrostatic discharges, particularly in advanced IT terminals and automotive systems.
Innovation Solution
A varistor design featuring adjustable electrode lengths and overlap areas, with insulating layers to prevent sparks and enhance durability, allowing for customizable breakdown voltage, capacitance, and ESD noise absorption capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a varistor is designed with fixed electrode configurations, then manufacturing is simplified, but the ability to adjust properties such as breakdown voltage, capacitance, and ESD noise absorption is limited
Solution Approach 1:
The patent applies dynamics by making the electrode configurations adjustable rather than fixed. The first and second electrodes can be extended to different lengths and positioned at different locations on the varistor body, allowing the electrical properties (breakdown voltage, capacitance, ESD absorption) to be dynamically adjusted according to specific application requirements while maintaining a manageable structural complexity through systematic design
2Adaptability or versatility
If electrode extension lengths are increased to adjust electrical properties, then property customization is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies segmentation by dividing the electrode structure into distinct, independently controllable segments. The first electrode extends from one end of the varistor body while the second electrode extends from the other end, allowing each electrode's length and position to be independently controlled during manufacturing. This segmented approach enables property customization through adjustable extension lengths while simplifying the manufacturing process by providing clear, separate positioning targets for each electrode segment
Data Source
AI summary
A varistor includes a varistor body, a first terminal disposed on one side of the varistor body, a second terminal disposed on the other side of the varistor body, a first electrode disposed on an upper portion of the varistor body, electrically connected to the first terminal, and extending towards the other side of the varistor body, and a second electrode disposed on a lower portion of the varistor body, electrically connected to the second terminal, and extending towards the one side of the varistor body.