What is a Liquid Cold Plate?

A Liquid Cold Plate (LCP)is responsible to transfer heat from surfaces with high heat loads to the fluid used within a liquid cooling system. Liquid cold plate performance is critical to the overall effectiveness of a liquid system.

100% In-Line Testing

Reliable, leak-free cold plates produced for decades.

Push product performance with next level cooling

Outperform air cooling with effective liquid cooling plates

Optimize Direct Liquid Cooling Interfaces

Custom cold plate skylines and pedestals maximize the interface between a heat source and the cooling system for peak performance.

Highly Customizable

Optimize design for balance flow rate and pressure drop for optimized performance.

Liquid Cold Plate Solutions for e-Mobility and Transportation

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copper heat pipes in snow

Liquid Cold Plates: High Efficiency Cooling Components

Liquid cold plates act as the part of a liquid cooling system that absorbs waste heat from devices like semiconductors, microprocessors, printed circuit board assemblies (PCBAs), or other power electronics and transfers it to the liquid cooling system. By leveraging the high heat capacity of liquid, liquid cold plates dissipate more heat than air cooling systems.

What Are Liquid Cold Plates?

Liquid cold plates are the key interface between a liquid cooling system and heat sources. A cold plate directs pumped fluid near heat sources and conducts waste heat into the fluid so it can be cooled elsewhere. Cold plates have a mounting surface for heat sources, internal passages for liquid to pass through, and an inlet and outlet. Thermal engineers optimize cold plate liquid flow path design and construction to maximize cooling within the liquid colling system constraints like pressure drop and flow.

How do Liquid Cold Plates Work?

A liquid cold plate will not cool devices on its own; it must be part of a liquid loop that contains a pump to move fluid and a heat exchanger to reject the heat absorbed by the cold plate.

Why use Liquid Cold Plates?

Liquid has a high heat capacity, meaning it can quickly absorb more heat than air cooled thermal management solutions. Liquid cold plates are adept at cooling high density and high output heat loads in a wide range of system requirements by transferring heat very efficiently into the liquid cooling system.

Why Choose Boyd for your Liquid Cold Plate?

Boyd’s engineers excel at developing and manufacturing high quality, compact, and durable liquid cold plates to meet your system requirements while reducing weight and complexity. We leverage accurate performance simulations based off decades of empirical data to quickly optimize cold plate design and accelerate your design cycle. Boyd’s extensive fabrication methods and leak-free construction options help you reduce product weight, push performance, or decrease overall assembly size with high performance liquid cold plates.

Liquid Cold Plate Technologies

Meet Application Requirements with the Right Construction

Since liquid cooling is utilized in a wide variety of applications, Boyd has developed the broadest range of liquid cold plate technologies in the thermal management industry. Our engineering team leverages the best fit technology to meet project requirements like thermal performance, flow rate, resistance and pressure drop, wetted path materials, weight, durability, and geometry.

Learn more about our most popular liquid cold plate technologies:

Stamped Liquid Cold Plates

Stamped liquid cold plates are a lightweight cold plate construction that leverage the manufacturing efficiency of aluminum stamping one or both sides of the LCP. Stamped cold plate components reduces manufacturing time and costs by streamlining flow path, mounting geometry, and other features into a single process and eliminates CNC time. Stamped cold plates can be enhanced with internal fins to boost thermal efficiency and are controlled atmosphere brazed (CAB) brazed for leak-free seals.


Electric vehicle batteries, on-board electronic, power conversion

Energy Management

Power conversion

Machined Liquid Cold Plates

Machined and brazed liquid cold plates offer the most flow path and structural geometry customization for a heat source to liquid system interface. Optimize complex, leak-free flow channels with precision CNC machining and high-quality CAB or vacuum brazing. Boyd’s broad technology portfolio enables additional performance boost with fin inserts to further enhance heat transfer into the liquid system.

Artificial Intelligence & Cloud Computing

Semiconductor and processor cooling

Industrial Process Equipment

Motor drive cooling, power conversion, laser and sensor cooling

Energy Management

Power conversion, battery energy storage systems

Round Tube Liquid Cold Plates

Boyd’s tube liquid cold plates are cost-effective component cooling for low to moderate heat loads. Tubed cold plates consist of copper or stainless steel tubes pressed into channeled aluminum plates. Tube cooling plates are available with either continuous tube styles or a manifold style. Enhance tube cold plate performance with the addition of turbulators by 5-15%.

Industrial Process Equipment

Motor drive cooling, power conversion, laser and sensor cooling

Energy management

Power conversion

Flat Tube Manifold Liquid Cold Plates

Flat Tube Cold Plates are ideal to cool small, high heat density components like thermoelectric coolers in limited vertical spaces. Using thin-walled aluminum multi-port extrusion (MPE) tubing, flat tube cooling plates minimize thermal resistance between the cold plate and heat source and produce surface thermal uniformity. Flat tube liquid cold plates can use more viscous fluids like ethylene glycol and water (EGW), oils, 3M Fluorinert®, and Polyalphaolefin (PAO) with their enhanced internal surface area and low pressure drop.


Computer or server microprocessor cooling and test equipment thermal management


Lightweight avionics, motor and electronics cooling solutions in more electric aircraft (MEA), electronic heat transport to stowed radiator panels during satellite launch. They can also operate as thermal diodes to prevent backward heat leak.


Actuator-mounted electronics cooling, engine waste heat wing and cowl anti-icing, and thermal signature suppression

Liquid Cold Plate Customization

Liquid Cold Plate Materials

  • Aluminum
  • Copper
  • Stainless Steel

Wetted path needs to be compatible with other components in the liquid loop. Mixing copper and aluminum leads to galvanic corrosion that decreases system performance and lifetime.

Cold Plate Flow Path Options

  • Meso-channel
  • Parallel channel
  • Tube and/or manifold

Liquid Cold Plate Manufacturing Processes

  • CNC machining
  • Friction stir welding
  • Stamping
  • CAB brazing
  • Vacuum brazing

Have questions? We’re ready to help!