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

VSEngineering 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

Engineering Contradiction:
Improvecircuit functionalityVSAvoidmounting area
Core Design Contradiction:
Adaptability or versatilityVSArea of stationary object

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.

Inventive Principle:
Principle #5Merging (Combining)

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.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of manufacture

If conventional terminal structure is used, then the manufacturing is simple, but the connection stability and adhesion strength are insufficient

Engineering Contradiction:
Improvemanufacturing simplicityVSAvoidconnection stability
Core Design Contradiction:
Ease of manufactureVSReliability

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.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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.

Inventive Principle:
Principle #40Composite materials

3Device complexity

If conventional terminal design is used, then the device complexity is low, but solder excess and defects occur

Engineering Contradiction:
Improveterminal structure complexityVSAvoidsolder excess and defects
Core Design Contradiction:
Device complexityVSObject-generated harmful factors

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.

Inventive Principle:
Principle #3Local quality

Data Source

PatentUS10242774B2Chip resistance element and chip resistance element assembly
Publication Date: 2019.03.26 SAMSUNG ELECTRO MECHANICS CO LTD
  • US10242774B2 patent drawing
  • US10242774B2 patent drawing
  • US10242774B2 patent drawing

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.