Conductive Adhesive Repair for Electronic Components
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Solution Overview
Problem
Existing methods face challenges in repairing or replacing individual electrical elements in electronic devices, particularly when they are small or surrounded by many others, due to difficulties in detachment and reattachment, especially on substrates like ceramic, where soldering can damage adjacent elements.
Innovation Solution
A process involving the use of conductive and non-conductive adhesive materials to attach and secure replacement electrical elements to electronic devices, allowing for secure electrical connections without damaging existing elements, using techniques like forming a dam structure to contain the conductive material and applying it in a way that avoids overheating and damaging other components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If soldering is used to attach replacement electrical elements, then electrical connectivity is achieved, but adjacent electrical elements may be damaged due to overheating
Solution Approach 1:
The patent applies segmentation by dividing the attachment process into distinct stages: first applying a non-conductive adhesive to secure the replacement element mechanically, then separately applying conductive material (such as conductive epoxy or metal paste) to establish electrical connectivity. This segmentation allows each material to perform its primary function without interfering with the other, avoiding the thermal damage problem associated with traditional soldering while ensuring both mechanical attachment and electrical connection.
2Ease of repair
If individual electrical elements are replaced, then device repair is enabled, but the complexity of the repair process increases due to difficulty in detachment and reattachment
Solution Approach 1:
The patent applies preliminary action by pre-applying both non-conductive adhesive and conductive material to the replacement electrical element before attempting attachment. This preliminary preparation ensures that when the element is positioned, both mechanical bonding and electrical connection occur simultaneously in a single operation, eliminating the need for complex multi-step processes and making individual element replacement practical and straightforward.
3Reliability
If conductive material is applied to ensure electrical connection, then connectivity is achieved, but the material may spread to adjacent elements causing short circuits
Solution Approach 1:
The patent applies preliminary anti-action by first applying a non-conductive adhesive that cures to form an insulating barrier around the replacement electrical element. This non-conductive layer prevents conductive material from spreading to adjacent elements during the attachment process. The non-conductive adhesive acts as a protective barrier that allows conductive material to be applied confidently without risk of short circuits, while still permitting proper electrical connection at the intended contact points.
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
Enables the efficient and cost-effective repair of electronic devices by ensuring secure attachment and electrical connectivity of replacement elements while minimizing damage to other components, allowing for the repair of damaged electrical elements without affecting the rest of the device.
Implementation Method 1
an electrically conductive material can be used to attach the replacement electrical element to the electronic device
Implementation Method 2
A process by which a damaged individual one or ones of the electrical elements can be repaired or replaced
Data Source
AI summary
An electrical element can be attached and electrically connected to a substrate by a conductive adhesive material. The conductive adhesive material can electrically connect the electrical element to a terminal or other electrical conductor on the substrate. The conductive adhesive material can be cured by directing a flow of heated gas onto the material or by heating the material through a support structure on which the substrate is located. A non-conductive adhesive material can attach the electrical element to the substrate with a greater adhesive strength than the conductive adhesive. The non-conductive adhesive material can also be cured by directing a flow of heated gas onto the material or by heating the material through the support structure on which the substrate is located. The non-conductive adhesive material can cover the conductive adhesive material.