Chip Resistance Element With Side Portion Terminal
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Solution Overview
Problem
The increasing demand for miniaturization in electronic devices poses a challenge as multiple resistance elements on printed circuit boards require a significant mounting area, which is undesirable for compact designs.
Innovation Solution
A chip resistance element with a base substrate, resistive layer, and terminals, including a third terminal with a side portion for enhanced connection and reduced solder excess, ensuring stable adhesion and preventing defects like short-circuits and overcurrent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple resistance elements are used to design the circuit, then the circuit functionality is improved, but the mounting area on the printed circuit board is increased
Solution Approach 1:
The patent combines multiple resistance elements into a single integrated chip structure, where multiple resistive elements are formed on the same base substrate. This merging approach allows multiple resistance elements to coexist in a compact footprint, significantly reducing the mounting area compared to using separate discrete resistance elements while maintaining the required circuit functionality.
Solution Approach 2:
The patent implements a nested arrangement where multiple resistive elements are positioned in a compact, space-efficient layout on the base substrate. The terminals are arranged to allow overlapping or adjacent positioning of multiple resistance elements, enabling them to be nested within a smaller overall area while maintaining electrical independence and functionality.
2Ease of manufacture
If conventional terminal structure is used, then the manufacturing is simple, but the connection stability and adhesion strength are insufficient
Solution Approach 1:
The patent extends the terminal structure from a two-dimensional surface configuration to a three-dimensional structure by adding side portions that extend laterally from the main terminal body. This dimensional extension increases the surface area available for solder attachment and creates a more robust mechanical connection, thereby improving connection stability and adhesion strength while remaining compatible with conventional manufacturing processes.
Solution Approach 2:
The terminal structure is designed as a composite configuration combining a main terminal body with extended side portions, creating a multi-component structure that optimizes both mechanical strength and electrical conductivity. This composite approach enhances the terminal's ability to withstand mechanical stress and thermal cycling while maintaining reliable electrical connections.
3Device complexity
If conventional terminal design is used, then the device complexity is low, but solder excess and defects occur
Solution Approach 1:
The patent applies local quality enhancement by adding side portions to specific terminals where improved solder attachment is needed. Rather than complicating the entire terminal structure, the side portions are strategically positioned at the solder joint areas to control solder flow and prevent excess solder, thereby reducing defects without significantly increasing overall device complexity.
Data Source
AI summary
A chip resistance element includes a base substrate having a first surface and a second surface opposing each other, two sides connecting the first surface and the second surface to each other, and two end surfaces connecting the first surface and the second surface to each other; a resistive layer disposed on the second surface; and a first terminal, a second terminal, and a third terminal disposed to be respectively connected to the resistive layer and to be separated from each other on the second surface. The third terminal having a second surface portion disposed between the first terminal and the second terminal on the second surface and a side portion connected to and disposed on one of the two sides of the base substrate.


