Chip Resistor Offset Electrodes High Resistance Strength
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Solution Overview
Problem
Conventional chip resistors face limitations in achieving high resistance while maintaining strength due to the thickness constraints of their metal resistor elements.
Innovation Solution
A chip resistor design featuring offset electrodes with a resistor element and bonding layer, along with plating layers, allows for increased resistance while maintaining structural integrity by dissipating heat effectively and optimizing electrode configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the thickness of the resistor element is reduced to increase resistance, then the resistance increases, but the strength of the chip resistor decreases
Solution Approach 1:
The invention transitions from a conventional planar electrode arrangement to a three-dimensional stacked configuration where electrodes are arranged in multiple layers at different heights. The first electrode is positioned at a first height and the second electrode at a second height different from the first height, creating vertical separation. This spatial reconfiguration in the height dimension allows for increased resistance through longer current paths while maintaining structural strength through the distributed three-dimensional electrode architecture.
Solution Approach 2:
The invention employs a composite structure combining multiple electrode materials and insulating materials. The electrodes are made of conductive materials and positioned within an insulating material matrix, creating a composite assembly that optimizes both electrical performance (high resistance) and mechanical properties (strength). The bonding layers further contribute to the composite structure, providing both electrical connection and mechanical support.
2Manufacturing precision
If the thickness of the resistor element is reduced to increase resistance, then the resistance increases, but the chip resistor cannot be made sufficiently high in power
Solution Approach 1:
By arranging electrodes in multiple layers at different heights rather than in a single plane, the invention creates extended current paths through the vertical dimension. This three-dimensional electrode configuration increases the effective resistance while distributing the power handling capacity across multiple electrode pairs, enabling high-power performance without requiring excessive thickness in any single resistor element.
Solution Approach 2:
The invention divides the electrode structure into multiple segmented layers - a first electrode at a first height and a second electrode at a second height. This segmentation allows the current to traverse through multiple discrete electrode pairs, effectively increasing the total resistance and power handling capability. Each electrode pair acts as a separate power dissipation path, and their combination achieves high overall power rating.
3Device complexity
If conventional metal resistor elements are used, then the structure is simple, but the resistance cannot be made sufficiently high without compromising strength
Solution Approach 1:
The invention introduces vertical layering with electrodes positioned at different heights, transforming the simple planar structure into a three-dimensional stacked configuration. This adds complexity to the structure but enables significantly higher resistance values through extended current paths in the vertical dimension, while maintaining manufacturing feasibility through standardized layering processes.
Solution Approach 2:
The invention employs a composite structure combining conductive electrode materials with insulating material matrices. This composite approach allows for high resistance values to be achieved through the insulating material properties and electrode geometry, going beyond what conventional homogeneous metal resistor elements can provide, while maintaining structural integrity.
Data Source
AI summary
A chip resistor includes first and second electrodes spaced apart from each other, a resistor element arranged on the first and the second electrodes, a bonding layer provided between the resistor element and the two electrodes, and a plating layer electrically connected to the resistor element. The first electrode includes a flat outer side surface, and the resistor element includes a side surface facing in the direction in which the thirst and the second electrodes are spaced. The outer side surface of the first electrode is flush with the side surface of the resistor element. The plating layer covers at least a part of the outer side surface of the first electrode in a manner such that the covering portion of the plating layer extends from one vertical edge of the outer side surface to the other vertical edge.