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Method to rapidly change Temperatures on test environments that utilize chillers

IP.com Disclosure Number: IPCOM000236595D
Publication Date: 2014-May-05
Document File: 3 page(s) / 51K

Publishing Venue

The IP.com Prior Art Database

Abstract

A system and method to rapidly change temperatures on test environments that utilize chillers is disclosed.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 52% of the total text.

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Method to rapidly change Temperatures on test environments that utilize chillers

Disclosed is a system and method to rapidly change temperatures on test environments that utilize chillers.

In lab environments, a lot of time may be spent trying to validate/characterize chips at different temperatures. If a chip is small enough, a peltier device can be used to change the temperature. However, on most high end chips, the surface area of the die is too large to be heated/cooled in this fashion. The alternative is to use water and chillers to run heated/cooled water across the chip. The down side of this approach is the time it takes to run the tests back to back. Also the tests may have greatly differing temperatures. This causes tests to have to wait while the chiller adjusts the temperature of the water. Wasting both time and energy on the water.

Disclosed is system wherein all individual chillers (1 per test station) are placed on a closed circuit within the lab. Within this circuit would be a water cooler, water heater, and ambient tanks. When the system determines the temperature it's supposed to change more than x degrees from it's current temperature, it can flush out it's water and request new water closer to the desired temperature.

The Figure below depicts an example embodiment of disclosed system having the following devices:

Chillers - 1 per test station. Capable of changing and maintaining the temperature


1.

of water flowing across a chip. The chiller is connected to a closed circuit via inflow and outflow tubing and its connected to Master Control Server which sends requests for water of a differing temperature.

Master Control Server (MCS) - One per test site. The MCS is connected to each


2.

chiller through a network medium (e.g., Ethernet, wireless, etc.). In addition it's connected to 3 water tanks (Hot, Cold, Ambient) and a mixer valve.

Water Tanks - One per...