Under Boat Support Structure With ESD-Safe Ceramic Pathways
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Solution Overview
Problem
Semiconductor manufacturing processes in FABs face challenges with electrostatic discharge (ESD) damaging sensitive components, leading to defective semiconductor devices and increased waste due to inadequate ESD protection in existing under boat supports.
Innovation Solution
An under boat support (UBS) with a conductive body and an ESD-safe ceramic coating, coupled via springs to provide an electrical pathway and prevent ESD, along with a high-temperature resistant adhesive for enhanced durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional under boat support structures are used, then manufacturing simplicity is maintained, but electrostatic discharge damages sensitive semiconductor components
Solution Approach 1:
The under boat support combines a conductive body (metal) with a ceramic coating layer to create a composite structure that provides both structural integrity and ESD protection. The conductive body serves as the structural support while the ceramic coating provides electrostatic discharge protection, resolving the contradiction between maintaining simple structure and achieving reliable ESD protection.
Solution Approach 2:
The ceramic coating acts as an intermediary layer between the conductive body and the semiconductor components. This intermediate layer provides ESD protection while allowing the underlying conductive structure to maintain its structural function, thus protecting sensitive components without requiring complete structural redesign.
2Reliability
If ESD protection is added to under boat support, then component safety improves, but manufacturing complexity increases
Solution Approach 1:
The ceramic coating is applied to the conductive body in advance during the manufacturing process, before the under boat support is put into service. This preliminary application of ESD protection integrates the protective function into the base manufacturing process, avoiding the need for separate ESD protection installations and reducing overall manufacturing complexity.
Solution Approach 2:
The composite structure of conductive body with ceramic coating provides both structural and protective functions in a single integrated component, eliminating the need for separate ESD protection devices and simplifying the overall manufacturing process.
3Reliability
If simple support structures are used, then manufacturing cost is reduced, but ESD events cause waste and repair costs
Solution Approach 1:
The conductive-ceramic composite structure provides ESD protection as an integrated feature of the support itself, rather than requiring additional separate components. This approach adds minimal complexity to the structure while effectively preventing ESD-related waste and repair costs.
Solution Approach 2:
The ceramic coating, which is inherently resistant to electrostatic discharge, is applied to the conductive body to convert the potential harm of ESD into a protective feature. This transforms the support structure from being vulnerable to ESD into an active ESD protection mechanism, reducing waste and repair costs without significant structural complexity increases.
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 UBS effectively reduces ESD events, increasing the yield of usable semiconductor packages by protecting sensitive components and minimizing downtime and repair costs.
Implementation Method 1
a plurality of springs between the conductive body and the electrostatic discharge safe ceramic body, the plurality of springs providing an electrical pathway between the conductive body and the electrostatic discharge safe ceramic body
Data Source
AI summary
An under boat support (UBS) includes an electrostatic discharge (ESD) safe ceramic body and a conductive body. The ESD safe ceramic body is coupled to a surface of the conductive body by an adhesive, which may be resistant to high temperatures. A plurality of springs are present within the adhesive and extend from the surface of the conductive body to a surface of the ESD safe ceramic body. For example, first ends of the plurality of springs are electrically coupled to the surface of the conductive body, and second ends of the plurality of springs, which are opposite to corresponding ones of the first ends of the plurality of springs, are electrically coupled to the surface of the ESD safe ceramic body. The plurality of springs form electrical pathways such that the ESD safe ceramic body is electrically coupled to the conductive body.