Contactless Temperature Control via Pressurized Dry Gas
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Solution Overview
Problem
Conventional test devices require direct contact with the device under test for temperature control, which becomes incompatible with the evolving needs of the electronic industry.
Innovation Solution
A test environment control system comprising a pressure-resistant container with a gas storage room and a temperature control device immersed in dry gas, which is used to establish a predetermined test environment in contactless test devices connected via a control valve.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a temperature control component (e.g., heater) is used to abut against the DUT for temperature control, then the DUT can meet the predetermined temperature for test requirements, but the configuration becomes incompatible with changes and needs of the electronic industry
Solution Approach 1:
The patent introduces a gas medium as an intermediary between the temperature control component and the DUT. The gas transmits thermal energy to the DUT without requiring direct physical contact, enabling temperature control while accommodating different DUT configurations and industry changes. This mediator approach resolves the contradiction by decoupling the temperature control function from direct mechanical contact.
Solution Approach 2:
The patent replaces the mechanical contact-based temperature control system with a gas-based thermal transmission system. Instead of using a heater that physically touches the DUT, the system uses heated gas to transfer thermal energy, substituting a mechanical interaction with a fluid-based interaction that is more adaptable to different testing scenarios.
2Temperature
If direct contact temperature control is used, then temperature control is achieved, but the system complexity increases and testing efficiency decreases
Solution Approach 1:
The patent extracts the temperature control function from the mechanical contact component and transfers it to the gas medium. By removing the requirement for direct contact between the heater and DUT, the system simplifies the overall configuration while maintaining effective temperature control through the gas transmission pathway.
3Temperature
If conventional contact-based temperature control is used, then the DUT can be heated, but the testing process becomes time-consuming and less efficient
Solution Approach 1:
The patent enables continuous temperature control by maintaining a constant flow of heated gas around the DUT. This continuous thermal transmission eliminates the need for intermittent heating adjustments and contact management, thereby improving testing efficiency and productivity while maintaining precise temperature control.
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 system allows for quick and efficient establishment of a predetermined test environment in contactless test devices, enhancing overall testing efficiency and compatibility with modern electronic industry requirements.
Implementation Method 1
The temperature control device is configured to control the dry gas in the gas storage room to arrive at a predetermined temperature
Implementation Method 2
The control valve of the pressure-resistant container is configured to output the dry gas having the predetermined temperature from the gas storage room to a N number of the contactless test devices
Implementation Method 3
The gas pressure module is connected to the gas input channel and the gas output channel. The gas pressure module is connected to the control valve of the pressure-resistant container for allowing the dry gas to be injected into the gas mixing room
Data Source
AI summary
A test environment control system includes a pressure-resistant container, a temperature control device that is at least partially arranged in the pressure-resistant container, and a plurality of contactless test devices that are connected to the pressure-resistant container. The pressure-resistant container is configured to store a dry gas therein that has a dew point temperature less than −10° C. and that has more than 1 atm. The temperature control device is immersed in the dry gas, and is capable of changing a temperature of the dry gas in the pressure container to a predetermined value. Moreover, a control valve of the pressure-resistant container can selectively output the dry gas having the predetermined temperature into at least one of the contactless test devices, so as to establish a predetermined test environment.