Precision Heat Exchanger Components for Advanced Thermal Management
Custom etched components for cold plates, microchannel stacks, and flow structures inside aerospace, EV, data center, and defense thermal systems.
Fotofab etches the precision metal components used inside heat exchangers. We don’t build the finished units, but we’ll produce the custom parts that meet your specific thermal management requirements. We etch cold plate components, microchannel plates, flow field plates, manifold plates, and shim and separator plates, produced to customer-specified tolerances based on material, thickness, and part geometry. Photochemical etching means no hard tooling, tight feature control on thin material, and parts in days rather than weeks. The same process supports first prototypes and full production runs without retooling. For stacked assemblies, Fotofab delivers etched and diffusion bonded components as a single-source supply.
Why Photochemical Etching for Thermal Management Components.
Heat Transfer Performance Starts with Geometry
Modern systems are pushing the limits of heat transfer. As power density increases and footprints shrink, engineers must design thermal solutions that remove heat efficiently without adding unnecessary weight or volume.
At the core of every high-performance system is the need to efficiently transfer heat between hot and cold fluids, often within extremely compact spaces. In these environments, even small variations in component geometry can significantly impact cooling performance.
Micro-Scale Features Drive Results
Features such as microchannels, fins, and plate thickness directly influence:
- Flow behavior
- Surface area interaction
- Pressure drop
- Overall cooling efficiency
These elements must be manufactured with extreme precision to maintain high thermal performance and ensure consistent temperature control.
Why Traditional Methods Fall Short
Conventional manufacturing methods, such as machining or stamping, often struggle to produce the fine geometries required for modern heat exchanger designs.
Some of the main limitations of traditional manufacturing methods include:
- Tooling constraints
- Lead time for new or modified tooling
- Burr formation
- Material distortion
- Inconsistent repeatability
The Advantage of Photochemical Etching
Fotofab’s photochemical etching capabilities overcome these limitations. Because the process uses no hard tooling, engineers can adjust channel geometry, fin spacing, and flow path layout between design iterations and produce the revised part in days.
The photochemical etching process enables:
- Tight tolerances for intricate features
- Stress-free, distortion-free components
- Burr-free edges for improved fluid flow
- Complex geometries without tooling limitations
This level of precision is essential for achieving efficient heat transfer and optimizing system-level performance.
Fotofab’s Capabilities for Heat Exchanger Components
Fotofab combines multiple advanced manufacturing processes to support custom heat exchanger designs for demanding applications in aerospace, defense, EV, and data centers. We deliver custom parts and support programs from prototype through full production.
Photochemical Etching (PCE)
Our core capability, the photochemical etching process, allows us to produce highly detailed metal components with:
- Fine microchannels and flow paths
- Precision fins and thin plates
- Complex patterns for fluid distribution
- Consistent feature replication across production runs
This process is well suited for etched plate components used in printed-circuit heat exchangers, compact plate structures, and bonded thermal assemblies.
Diffusion Bonding
For high-performance assemblies, Fotofab delivers diffusion bonded multi-layer structures as a single-source supply.
Benefits include:
- Hermetically sealed, solid-state bonds
- High strength without filler materials
- Compatibility with high-pressure applications
- Ideal for compact plate stacks and microchannel systems
Diffusion bonding is widely used in advanced plate heat exchangers and compact thermal systems requiring high reliability.
Prototyping to Production
Speed matters in thermal system development. Fotofab supports:
- Rapid prototyping for validation of design and system performance
- Design iteration without costly tooling
- Seamless transition to full-scale production
This flexibility allows engineers to refine heat exchanger designs quickly and reduce time to market.
Secondary Services
Fotofab provides additional capabilities to support finished components:
- Forming
- Plating and surface finishing
- Heat treating
- Laser welding
These services reduce the need for multiple suppliers, simplifying development and downstream assembly.
Compliance & Certifications
Fotofab maintains strict quality standards, including:
- AS9100D and ISO 9001:2015 certifications
- ITAR registered
- Full traceability and inspection processes
Our quality system and documentation support work in highly regulated industries, including aerospace, defense, electronics, and medical applications.
Heat Exchanger Components Fotofab Produces
Precision Components for Plate and Printed Circuit Heat Exchangers
Fotofab produces specialized etched metal components built to custom specifications, used in plate heat exchangers, printed circuit heat exchangers, and related compact thermal structures. These components support the fine-featured plate geometries that make modern heat exchangers efficient in limited space.
Microchannel and Plate Components
Fotofab produces the core plate-type components used in compact heat exchangers:
- Microchannel cold-side and hot-side plates
- Plate-fin heat exchanger plates
- Flow field plates
- Manifold plates
- Shim plates
- Separator plates
These components are etched to the customer’s drawings to support efficient heat transfer within tightly integrated systems, making them ideal for applications where space, weight, and performance are key considerations.
Flow Channels and Multi-Layer Assemblies
Our etched components can be configured into multi-layer thermal structures, including:
- Microchannel and flow channel architectures
- Stackable plates designed for diffusion bonding
- Multi-layer laminated and bonded assemblies
These configurations support compact, high-performance heat exchanger cores designed for optimized flow paths, reduced pressure drop, and enhanced thermal efficiency.
Diffusion-Bonded Structures
Fotofab supports the development of high-density, diffusion-bonded assemblies used in:
- Compact heat exchanger cores
- High-performance cooling systems
- Applications requiring reliable operation under high-pressure conditions
We etch the precision plates these assemblies are built from and deliver the finished bonded stack as a single-source supply, giving engineers sealed, structurally robust assemblies. For the right applications, these assemblies offer performance and compactness that traditional fabrication methods can’t match.
Filters, Screens, and Supporting Components
In addition to primary thermal components, we manufacture supporting elements, including:
- Precision filters
- Screens for fluid or particle separation
These components help maintain fluid integrity, protect system components, and contribute to consistent performance across demanding environments such as aerospace, defense, and data centers..
Key Applications in the Field
Fotofab components are used across a wide range of industries where precise thermal management is essential.
Key applications include:
High-Performance Computing & Data Centers
Thermal management is critical for servers and computing infrastructure. Our precision etched components support:
- Active liquid cooling loops
- Cold Plates for GPU and CPU thermal management
- Heat recovery and reuse systems
Aerospace Avionics
In aerospace applications, size and weight constraints demand compact, high-performance solutions. Our components support:
- Avionics cooling systems
- Environmental control systems
- Operation at extremely low temperatures and high altitudes
Automotive & EV Systems
Electric vehicles require efficient cooling for battery systems and power electronics. Fotofab components contribute to:
- Battery thermal management
- Power conversion systems
- Reduced operational costs through improved efficiency
Industrial Machinery
Industrial equipment runs continuously and under thermal load.
Applications include:
- Equipment cooling assemblies
- Process heat management
- Systems requiring continuous operation and reliability
Defense Electronics
Compact and reliable cooling is critical in defense systems.
Fotofab etched components can support:
- High-performance electronics cooling
- Radar and communication system thermal management
- Cooling assemblies for directed-energy and high-power RF systems
- Mission-critical thermal management in UAV, missile, and EW systems.
Why Choose Fotofab for Heat Exchanger Projects
Fotofab brings over 50 years of experience in precision metal manufacturing, specializing in photochemical etching.
We work closely with engineers to:
- Review designs for manufacturability in photochemical etching
- Suggest feature-level adjustments that improve yield or cost without changing design intent
- Deliver parts quickly and consistently from prototype through full production
We work together to support your thermal management goals.
The Fotofab Advantage
Rapid Scaling
From prototype to production, Fotofab supports:
- Fast development cycles
- Scalable manufacturing
- Consistent part quality across volumes
Reliable Supply Chain
We provide dependable production for both urgent and long-term programs, supporting industries with strict timelines and performance requirements.
Mission-Critical Performance
Our components are used in mission-critical systems, from aerospace to advanced thermal or climate control systems and beyond.
Material Expertise
Material selection is based on tolerances, manufacturability, corrosion resistance, and cost targets for the application.
Explore Metals We Chemically Etch
At Fotofab, we provide photochemical machining (chemical etching, acid etching) services for a wide range of metals.
Thermal Performance Starts with Precision Manufacturing
Achieving reliable thermal performance requires more than selecting the right materials. It depends on the ability to manufacture components with exact geometry, consistent tolerances, and repeatable quality.
Photochemical etching enables engineers to move beyond the limitations of traditional manufacturing and additive manufacturing, delivering components that support:
- Efficient thermal energy exchange
- Reduced pressure drop
- Improved system reliability
- Lower energy consumption
By combining precision manufacturing with advanced design capabilities, Fotofab helps engineers build systems that efficiently transfer heat and perform reliably under demanding conditions.
Partner with Fotofab for Precision Thermal Components
Fotofab does not manufacture complete heat exchangers; we manufacture the precision components that make them perform well.
From microchannel plates to diffusion-bonded assemblies, we use photochemical etching and advanced manufacturing to produce components that help engineers build high-performance thermal solutions tailored to their needs.
Whether you are designing for aerospace, electronics, automotive, or industrial applications, Fotofab provides the precision, speed, and reliability required for success.Contact us to discuss your project or Request a Quote Today
Fotofab is committed to quality.
Photochemical Etching for Heat Exchangers
Fotofab has been chemically etching custom Heat Exchangers for over 50 years in a variety of applications in:
