Insulating Layer Shield Conductor for High-Voltage Pattern Isolation
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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
1Reliability
If a high voltage pattern is formed opposing a 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 positioned between the high voltage pattern and the low voltage pattern. This shield conductor acts as a mediator that redistributes and suppresses the electric field concentration at the high voltage pattern, thereby preventing breakdown and improving withstand voltage without interfering with the normal voltage transformation function.
Solution Approach 2:
The solution adds a new spatial dimension by introducing the shield conductor layer at a different position within the insulating layer structure. Instead of modifying the existing high voltage or low voltage patterns, the shield conductor is placed in an intermediate dimension (different layer position) to achieve electric field control without disrupting the original voltage transformation geometry.
2Reliability
If the insulating layer thickness is increased to improve withstand voltage, then voltage resistance improves, but device size and complexity increase
Solution Approach 1:
Instead of changing the insulating layer thickness (a geometric parameter), the solution changes the electrical parameter distribution by introducing the shield conductor layer. This allows achieving the same withstand voltage improvement through electrical field management rather than physical dimension changes, thereby avoiding increased device size and structural complexity.
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.