by Stefan Lutter – Manager Product Management, AES on Dec 03, 2020
Advanced Electronics Solutions
About two decades ago, engineers in the field of laser technique were looking for a partner to design and build high power coldplates that could support their need for a cutting-edge cooling system targeted to their laser bars. Together with the curamik® engineering team the idea of bonded micro-channel-coolers was born. Since then, high-end liquid cooling systems have become more applicable in an abundance of diverse markets today. If you are looking for more information or would like to talk about your application, please get in touch with us or stay tuned for deeper insights into our MCC market series launching next year.
Current available cooling solutions have reached their limit in edge and high-performance computing (HPC). However, direct chip cooling offers a solution to keep chip temperatures at an optimum operating temperature. According to forecasts by MarketsandMarkets Inc., the global market for liquid cooling in data centers will grow from $1.2 billion (2019) to $3.2 billion by 2024. This is due to the increasing demand for energy-efficient and compact cooling solutions, at lower operating costs and required for higher performance from edge to HPC. Conventional rack and room cooling solutions are reaching their limits. One resolution is using direct chip cooling solutions and Rogers Corporation´s micro channel cold plates to support your system through the next advancement.
Due to their increasing light output, high-performance LEDs are becoming commonplace for new applications in medical technology, industrial image processing and UV curing of adhesives. In order to expose large-area objects hundreds of power LED chips must be brought together in a very small space. As a result, thermal problems can arise more often. In addition, especially in the UV range, high demands are placed on the constancy of optical parameters, such as wavelength, chromaticity coordinates, forward voltage and light output. Temporary temperature changes or even a strong inhomogeneous temperature distribution across the power module are unacceptable. Nonetheless, Rogers offers optimized and customized coolers to meet your specific needs.
LED Type packaging density
Source: Photonics Media (2020), “LED-Based Sun-Simulator Design: Technical and Commercial Considerations”, retrieved from: https://www.photonics.com/Articles/LED-Based_Sun-Simulator_Design_Technical_and/a57253
Unlike conventional photovoltaic systems, lenses and curved mirrors are used to focus sunlight onto small but highly efficient multi-junction solar cells (MJ). CPV systems often use solar tracking systems and on occasion are coupled with a cooling system to further increase efficiency. Systems with highly concentrated photovoltaics (HCPV) are entering a competitive space. They are the most efficient among all existing PV technologies and with a smaller photovoltaic system they are capable of reducing overall system costs. Currently, CPV is not used in the rooftop PV segment and is far less common than conventional PV systems. Modern CPV systems work most efficiently in highly concentrated sunlight (i.e. concentrations equivalent to hundreds of suns), if the solar cell is kept cool by using heat sinks. In this scenario, Rogers Corporation can support your application with bare copper or insolated micro-channel heat sinks.
CPV Triple Junction Solar Cell Module – Type 3C30M
Source: AZUR SPACE Solar Power GmbH (2020), “CPV Dense Array Module”, retrieved from: http://www.azurspace.com/index.php/en/products/products-cpv/cpv-dense-array-module
Last, but not least let’s take a look at our high power laser diode MCC market. The laser diode bars´ power is directly scalable by stacking them vertically. Some manufactures provide laser diode bars with micro-channel water cooling in stacks containing up to 60 individual bars. This product´s advantages are its small size, compact design, high power density and excellent beam properties. The bars´ optimal composition can be determined by exact thermal simulation and a matching cooling design. Resulting in exceptional wavelength stability and consistency achieved across all bars, from which, for example, pumping applications particularly benefit. QCW diode laser stacks are new to the market. However, these active or passive cooled diode laser stacks and assemblies for QCW operation are highly efficient, even under difficult environmental conditions. Due to the lightweight construction, the coldplates can withstand vibrations and shocks without any problems. Last, because of their reliability and efficiency, our coolers are also used in pumping sources for solid-state lasers.
Do you have any question or require some information about our coolers? Please contact us, if you need assistance.
curamik Cooling Solutions
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