Electronic Component Pad Convergence for Thermal Expansion
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Solution Overview
Problem
Existing electronic devices face challenges in achieving reliable electrical connections between components due to manufacturing errors and thermal expansion during the bonding process, leading to reduced connection reliability.
Innovation Solution
The electronic component features a pad region with pads arranged in specific patterns, including first and second pads with converging extension lines into distinct points, and a bonding method that involves aligning and coupling these pads with x-axis and y-axis corrections to ensure accurate alignment and thermal expansion management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional bonding process is used to connect pad regions, then manufacturing simplicity is maintained, but connection reliability deteriorates due to manufacturing errors and thermal expansion
Solution Approach 1:
The pad regions are pre-designed with specific geometric configurations (converging extension lines for first pads to first point, converging extension lines for second pads to second point) before the bonding process. This preliminary design allows the pads to automatically compensate for thermal expansion and manufacturing errors during bonding, improving connection reliability without adding complex real-time correction mechanisms.
Solution Approach 2:
The invention changes the geometric parameters of the pad regions by introducing convergence points and varying between-angles. The first and second pads have different convergence points and angle variations, creating a parameter-based compensation mechanism that addresses thermal expansion and alignment errors, thereby improving reliability without significantly increasing process complexity.
2Manufacturing precision
If pad regions are aligned without correction, then bonding process is simple, but manufacturing precision deteriorates due to alignment errors
Solution Approach 1:
Alignment marks are pre-configured in the pad regions before bonding. These marks enable automatic alignment during the bonding process, ensuring that corresponding pads from different electronic components are precisely aligned. This preliminary setup achieves high manufacturing precision without requiring complex real-time alignment corrections, maintaining ease of manufacture.
3Stability of the object's composition
If conventional pad arrangement is used, then design simplicity is maintained, but connection stability deteriorates under thermal compression
Solution Approach 1:
The pad configurations utilize converging extension lines that meet at specific points, creating a radial or curved-like pattern rather than straight parallel arrangements. This geometric configuration allows the pads to better accommodate thermal expansion and compression forces, distributing stress more evenly and maintaining connection stability under thermal conditions without requiring overly complex structures.
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 solution enhances the reliability of electrical connections by compensating for manufacturing errors and thermal expansion, maintaining a stable connection even after thermal compression.
Implementation Method 1
The coupling process may use a thermo-compression tool
Data Source
Figure 1
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Figure 3A~3B
AI summary
Provided is an electronic component comprising a first pad row (IPP1-110) having pads extending along corresponding extension lines (L1, L2, L3, L4) and a second pad row (IPP2-110) having pads extending along corresponding extension lines (L10, L20, L30, L40), wherein the pads of the first pad row include first pads (PG1, PG3) and second pads (PG2, PG4), wherein extension lines (L1, L3) of the first pads substantially converge to a first point (P1-1, P3-1), and extension lines (L2, L4) of the second pads substantially converge to a second point (P2-1, P4-1) different from the first point, and wherein the pads of the second pad row include third pads (PG10, PG30) and fourth pads (PG20, PG40), wherein extension lines (L10, L30) of the third pads substantially converge to a third point (P1-2, P3-2), and extension lines of the fourth pads substantially converge to a fourth point (P2-2, P4-2) different from the third point.