Insulating Layer Layout With Shield Conductor for Higher Withstand Voltage
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Solution Overview
Problem
The electric field formed between a low voltage pattern and a high voltage pattern tends to concentrate at the high voltage pattern, leading to a decrease in withstand voltage.
Innovation Solution
An electronic component with an insulating layer containing a low voltage pattern and a high voltage pattern, where a shield conductor layer is positioned peripherally around the high voltage pattern to shield the electric field and prevent concentration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If a high voltage pattern is formed to oppose the low voltage pattern across an insulating layer, then voltage transformation function is achieved, but electric field concentration occurs at the high voltage pattern leading to decreased withstand voltage
Solution Approach 1:
A shield conductor layer is introduced as an intermediary element between the low voltage pattern and the high voltage pattern. This shield layer, positioned in the insulating layer and connected to ground potential, acts as a mediator that intercepts and redistributes electric field lines, preventing direct concentration at the high voltage pattern edges while maintaining the voltage transformation function between primary and secondary windings
2Area of stationary object
If the high voltage pattern is positioned close to the low voltage pattern for compact design, then device area is reduced, but electric field concentration increases and withstand voltage decreases
Solution Approach 1:
The shield conductor layer serves as a ground-referenced intermediary that enables compact positioning of high voltage and low voltage patterns while preventing electric field concentration. By placing the shield layer between opposing voltage patterns and connecting it to ground, the design achieves space efficiency without sacrificing withstand voltage capability
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 effectively suppresses electric field concentration at the high voltage pattern, thereby improving the withstand voltage.
Implementation Method 1
a shield conductor layer that is formed in the insulating layer such as to be positioned in a periphery of the high voltage pattern in plan view, shields an electric field formed between the low voltage pattern and the high voltage pattern
Data Source
AI summary
An electronic component includes an insulating layer that has a principal surface, a passive device that includes a low voltage pattern that is formed in the insulating layer and a high voltage pattern that is formed in the insulating layer such as to oppose the low voltage pattern in a normal direction to the principal surface and to which a voltage exceeding a voltage to be applied to the low voltage pattern is to be applied, and a shield conductor layer that is formed in the insulating layer such as to be positioned in a periphery of the high voltage pattern in plan view, shields an electric field formed between the low voltage pattern and the high voltage pattern, and suppresses electric field concentration with respect to the high voltage pattern.