Anodized-Film Interposer With Conductive Needles for Contact Protection
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Solution Overview
Problem
Direct electrical connection between contact terminals of semiconductor devices and conductive pins during inspections can cause damage to the contact terminals.
Innovation Solution
An interposer with an anodized film and conductive needles is used to indirectly connect the contact terminal of the object to be inspected and the conductive pins, featuring conductive parts with varying mechanical and electrical properties to prevent damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If contact terminals of semiconductor devices directly contact electrically conductive pins during inspection, then electrical connection is achieved, but damage to contact terminals occurs
Solution Approach 1:
The patent introduces an interposer as an intermediary component between the contact terminal and the electrically conductive pin. The interposer includes a porous anodized film with conductive needles embedded within it. The contact terminal contacts the anodized film surface, while the conductive needles extend through the porous structure to contact the electrically conductive pin, thereby preventing direct contact between the contact terminal and the pin tip.
Solution Approach 2:
The interposer utilizes a porous anodized film as its primary structure. This porous material allows conductive needles to be embedded within the matrix, creating a three-dimensional conductive pathway. The porous structure enables the conductive needles to extend in multiple directions, ensuring reliable electrical connection while distributing mechanical stress away from the contact terminal.
2Object-affected harmful factors
If an interposer with conductive needles is introduced between contact terminal and electrically conductive pin, then contact terminal damage is prevented, but device complexity increases
Solution Approach 1:
The interposer is constructed as a composite material system combining a porous anodized film matrix with embedded conductive needles. This composite structure integrates multiple functions: the anodized film provides mechanical support and insulation, while the conductive needles provide electrical conductivity. The combination allows the interposer to function as both a mechanical buffer and an electrical conductor in a single component.
Solution Approach 2:
The conductive needles are nested within the porous structure of the anodized film. This nested configuration allows the conductive elements to be embedded within the insulating matrix, creating a compact structure where the needles extend through the porous pathways. The nesting arrangement maximizes space utilization and ensures that the conductive pathways are protected by the surrounding anodized film material.
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
The interposer effectively prevents damage to contact terminals while ensuring reliable electrical connections, improving connection reliability and maintaining positional accuracy.
Implementation Method 1
an anodized film obtained by anodizing a metal substrate and then removing the metal substrate
Data Source
AI summary
The present invention provides an interposer that is provided between an object to be inspected and electrically conductive pins, allowing the contact terminal of the object to be inspected and the tip of the electrically conductive pins to be indirectly electrically connected to each other, thereby preventing damage to the contact terminal, and an inspection apparatus comprising the same.