Peripheral Cleaning Cabinet Gas Flow Contaminant Removal
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Solution Overview
Problem
Contaminants introduced during packaging and transportation of semiconductor devices can cause faulty devices, leading to yield losses and increased inspection times due to short circuits between external electrical leads.
Innovation Solution
An electronic device peripheral cleaning cabinet and method that uses a gas flow to remove contaminants from semiconductor devices by flowing gas through the cabinet, which supports the devices on shelves and walls, allowing the gas to pass through and exhaust out, effectively cleaning the peripherals and their contents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If gas flow cleaning is implemented, then contaminant removal effectiveness is improved, but device complexity increases
Solution Approach 1:
The cabinet body is divided into multiple compartments with separate support shelves for different peripheral types. Each compartment can be independently cleaned with gas flow, allowing targeted cleaning of specific areas while maintaining overall system simplicity.
Solution Approach 2:
A gas delivery system with nozzles and flow control valves is introduced as an intermediary mechanism to achieve effective contaminant removal. The gas flow acts as a mediator that cleans peripherals without requiring direct mechanical contact, thus maintaining reliability while keeping the structural additions minimal.
2Adaptability or versatility
If multiple support shelves are added to accommodate different peripherals, then adaptability is improved, but device complexity increases
Solution Approach 1:
The cabinet body is designed with universal support shelves that can accommodate multiple types of peripherals including magazine carriers, tube carriers, and spool carriers. Each shelf type serves multiple functions - supporting different peripheral configurations while maintaining the same basic structural design, thus improving adaptability without proportionally increasing complexity.
Solution Approach 2:
The support shelves are designed to be adjustable and reconfigurable within the cabinet body. This dynamic capability allows the same shelf structure to adapt to different peripheral sizes and types, enhancing versatility while avoiding the need for multiple fixed specialized structures.
3Reliability
If gas flow rate is increased to improve cleaning effectiveness, then contaminant removal is improved, but energy consumption increases
Solution Approach 1:
The gas delivery system incorporates locally optimized nozzles positioned near specific peripheral locations that require cleaning. Gas flow rate is concentrated at these critical locations rather than uniformly distributed throughout the cabinet, improving cleaning effectiveness at contamination-prone areas while minimizing overall gas consumption.
Solution Approach 2:
The system applies gas flow at higher rates only when and where contaminants are present, rather than maintaining high flow rates continuously throughout the entire cabinet. This partial action approach achieves effective contaminant removal while reducing unnecessary energy consumption in areas that do not require intensive cleaning.
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 approach increases yield and reduces inspection times by effectively removing contaminants, preventing short circuits and ensuring the integrity of semiconductor devices.
Implementation Method 1
a gas delivery means for supplying a gas to an interior space of the cabinet body
Data Source
AI summary
The present disclosure generally relates to an electronic device peripheral cleaning cabinet and a method for cleaning such peripherals. In an example, a peripheral cleaning cabinet includes a cabinet body, a door, a cabinet gas line, and a support shelf. The cabinet body includes an exhaust port. The door is mechanically coupled to the cabinet body. The cabinet gas line includes a gas valve and a nozzle. The gas valve is fluidly coupled to the nozzle. The nozzle is disposed in the cabinet body. The cabinet gas line is configured to supply a gas to flow into the cabinet body. The support shelf is disposed in the cabinet body and is configured to support a peripheral. The support shelf is configured to allow the gas to flow from the nozzle, through the support shelf, and to the exhaust port.