Electrode Terminal Sheet Structure for Miniature Component Mounting
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Solution Overview
Problem
As electronic components shrink in size and demand higher performance and reliability, forming and mounting terminals on substrates becomes increasingly challenging due to size constraints and the need for improved performance and reliability.
Innovation Solution
The development of electronic components with electrode terminals that include terminal bodies extending in a planar shape along the main surface of the element body, featuring outward or inward protrusions to enhance mounting reliability and mechanical strength, processed from wire ends into sheet shapes with specific thickness and width configurations to improve adhesion and reduce size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If electronic components are reduced in size to meet smaller size requirements, then the size of the component is reduced, but the mechanical strength and mounting reliability of terminals deteriorate
Solution Approach 1:
The terminal structure transitions from a conventional wire form to a sheet shape with outward protrusions. This dimensional change creates a larger effective bonding area and additional anchoring points without increasing the overall component footprint, thereby maintaining mechanical strength while reducing component size.
Solution Approach 2:
The terminal is divided into multiple functional regions: a terminal body portion for electrical connection and outward protrusions for mechanical anchoring. This segmentation allows the terminal to fulfill both electrical and mechanical requirements independently, with the protrusions providing enhanced bonding strength without affecting the electrical performance.
2Volume of moving object
If electronic components are reduced in size to meet smaller size requirements, then the size of the component is reduced, but the mounting reliability on substrates deteriorates
Solution Approach 1:
By transforming the terminal from a linear wire shape to a two-dimensional sheet structure with outward protrusions, the invention increases the bonding interface area with the substrate. This dimensional expansion improves mounting reliability through enhanced adhesion and mechanical interlocking, while the overall component size remains reduced.
Solution Approach 2:
The terminal structure exhibits local quality variations: the terminal body provides electrical connectivity while the outward protrusions provide enhanced mechanical bonding. This localized functional differentiation ensures that mounting reliability is improved at critical bonding points without compromising the overall miniaturization of the component.
3Strength
If wire ends are processed into sheet shape with increased width to improve terminal strength, then the mechanical strength is improved, but the processing complexity increases
Solution Approach 1:
The wire end is processed into a sheet shape with outward protrusions formed in advance during the terminal formation step. This preliminary structuring integrates the strengthening feature into the manufacturing process itself, avoiding the need for subsequent complex post-processing operations to add reinforcement structures.
Data Source
AI summary
An electronic component includes an element body and an electrode terminal. The electrode terminal includes a terminal body extending in a planar shape along a main surface of the element body, and at least one of an outward protrusion continuously and integrally formed with the terminal body and protruding outside the main surface and an inward protrusion continuously and integrally formed with the terminal body and extending inside of the element body from the main surface.