Inductor Component Layout for Locatable Electrostatic Breakdown
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Solution Overview
Problem
In the production of inductor components, electrostatic breakdowns occur between coil lines, making it difficult to identify and correct the damaged portion of the base body due to the long distance between the lines, which hinders efficient manufacturing.
Innovation Solution
The design includes a configuration where the minimum distance between certain columnar lines is shorter than the distance between coil lines, increasing the likelihood of electrostatic breakdowns in specific areas, allowing for easier identification and correction by drilling and sealing with insulating resin, and incorporating magnetic layers and insulating layers to enhance this effect.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the distance between coil lines is increased to prevent electrostatic breakdown, then reliability is improved, but the ability to identify and locate breakdown points deteriorates
Solution Approach 1:
The patent divides the base body into multiple regions by introducing columnar lines that extend from the first main surface to the second main surface. These columnar lines segment the base body into distinct regions, allowing breakdown locations to be identified by observing which region exhibits breakdown symptoms, thereby solving the problem of difficult breakdown location identification while maintaining adequate spacing between coil lines for reliability
Solution Approach 2:
The columnar lines act as intermediary structures between the coil lines and the base body. By positioning columnar lines between adjacent coil lines and maintaining specific distance relationships (where the minimum distance between columnar lines is shorter than the minimum distance between coil lines), the patent creates intermediate breakdown zones that are easier to locate and correct, thus resolving the contradiction between reliability and detectability
2Productivity
If the distance between coil lines is decreased to improve manufacturing efficiency, then productivity is improved, but the risk of electrostatic breakdown increases
Solution Approach 1:
The patent applies local quality by creating regions with different electrical characteristics through the columnar line structure. The regions between columnar lines have different breakdown probabilities compared to regions between coil lines. By making the minimum distance between columnar lines shorter, the patent creates localized zones that are more prone to breakdown, allowing breakdowns to occur in predetermined, easily locatable regions rather than randomly between coil lines, thus maintaining reliability while improving manufacturing efficiency
3Ease of repair
If columnar lines are added to improve breakdown identification, then ease of repair is improved, but device complexity increases
Solution Approach 1:
The columnar lines are pre-configured in the base body during manufacturing to establish predetermined breakdown zones. This preliminary action ensures that if electrostatic breakdown occurs, it will likely happen in the regions between columnar lines rather than between coil lines, making breakdown location identification and repair straightforward without adding complex diagnostic systems or procedures
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 enables reliable identification and correction of electrostatic breakdowns between columnar lines, improving the manufacturing efficiency and reducing the impact on inductance values, while preventing breakdowns between coil lines.
Implementation Method 1
an insulating layer61, a first magnetic layer11 disposed on the lower surface61a of the insulating layer61, and a second magnetic layer12 disposed on the upper surface61b of the insulating layer61
Implementation Method 2
a first magnetic layer11 disposed on the lower surface61a of the insulating layer61, and a second magnetic layer12 disposed on the upper surface61b of the insulating layer61
Data Source
AI summary
An inductor component includes a base body, a first coil line and a second coil line, a first substantially columnar line and a second substantially columnar line, and a third substantially columnar line and a fourth substantially columnar line. The first substantially columnar line is located closer to the third substantially columnar line than the fourth substantially columnar line. A minimum distance X1 between the first substantially columnar line and the third substantially columnar line is shorter than a minimum distance Y between a first portion of the first coil line and a second portion of the second coil line.