Semiconductor Cooling
Plate Machining

CNCPioneer manufactures semiconductor cooling plates and CNC machined cold plates for power modules, ATE thermal control, lasers, RF amplifiers, process equipment and wafer chuck platforms.

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IATF 16949 & AS9100D quality systems

Material and inspection scope reviewed with your drawing

Prototype and repeat-production enquiries

Finishing and documentation agreed with the order

DFMDrawing & process review

QCAgreed inspection plan

Semiconductor Cooling Plate

Custom semiconductor cooling plate manufacturing is the CNC machining, surface treatment, leak testing and cleanliness-verification process used to produce liquid-cooled thermal management components for semiconductor process equipment, power modules, ATE systems, laser assemblies, RF amplifiers and wafer-chuck platforms.

A semiconductor cooling plate is a precision-machined metallic body — internally channeled for liquid coolant flow — whose external contact surfaces serve as the primary thermal interface between heat-generating semiconductor equipment elements and the cooling system.

Thermal contact face flatness as the performance foundationAt 0.005mm flatness, the TIM layer compresses to uniform 75 ± 3μm bond-line thickness, producing target thermal resistance.
DI water compatibility as a cleanroom competencyDI water is chemically aggressive — it leaches metallic ions from copper (0.1–1.0 ppb/day) and bare aluminum.
Fluorinated coolant compatibility for sub-ambient programsGalden HT-135, Fluorinert FC-77, and Novec 7100 require FFKM (Kalrez) or PTFE-encapsulated O-rings — standard nitrile (NBR) seals are attacked.
Thermal, channel and leak-test verificationAgree critical-feature checks, measuring methods and inspection records with your drawing.

Why CNCPioneer for Semiconductor Cooling Plate?

Coordinate geometry, material, finishing and inspection around the part's intended function.

Thermal Contact Face Flatness

At 0.005mm flatness , the TIM layer compresses to uniform 75 ± 3μm bond-line thickness, producing thermal resistance R_th = 0.006 K/W for a 50mm×50mm device — the target value in thermal design.

DI Water Compatibility

Semiconductor equipment uses deionized water (18 MΩ·cm) as primary coolant.

Fluorinated Coolant Compatibility

ATE systems cooling to −40°C to −55°C and laser systems at 15–25°C use Galden HT, Fluorinert FC-77, and Novec 7100.

Precision Channel Machining

Semiconductor cooling plates require channel width ±0.050mm (versus ±0.100–0.200mm in industrial cold plates) for controlled hydraulic resistance; channel depth uniformity ±0.030mm for consistent heat transfer coefficient; and inter-channel wall thickness uniformity ±0.030mm for consistent conductive resistance.

OEM Cooling Plate Documentation

Review flow channels, sealing lands and mounting flatness and functional requirements before defining the process.

Functional Geometry Review

Review flow channels, sealing lands and mounting flatness before choosing the machining and inspection route.

Semiconductor Cooling Plate We Manufacture

Explore representative configurations and share your drawing for a product-specific review.

Plasma Process Chamber Electrode Cooling Plates

ICP and CCP etch tools, PECVD reactors, and PVD magnetron sputtering tools require water-cooled lower electrodes and chuck assemblies.

CVD and ALD Susceptor Cooling Platforms

Chemical vapor deposition and atomic layer deposition processes require precise substrate temperature control.

ATE Thermal Control Cold Plates

ATE Thermal Control Cold Plates machined to your drawing. Confirm material, functional dimensions and finish before production.

Laser and Photonics Cold Plates

Laser diode bar cold plates: contact surface flatness 0.002–0.003mm for solder-mount programs; Ra 0.05–0.10μm mirror polished; gold or indium plating 1–3μm on CuW or copper; micro-channel geometry 0.2–0.5mm width, 2–4mm depth, 0.1–0.3mm wall; CuW 10/90 CTE-matched to GaAs (6.5 ppm/°C).

RF Power Amplifier Cold Plates

RF power generators for semiconductor plasma process tools (13.56 MHz, 27.12 MHz, 60 MHz at 1–30 kW) use LDMOS or GaN RF transistors mounted on precision cold plates.

Wafer Chuck and ESC Base Cooling Plates

Electrostatic chuck base cooling plates: top face flatness 0.005mm/300mm for dielectric bond; helium backside gas micro-grooves ±0.020mm width, ±0.010mm depth; liquid coolant channels ±0.050mm; HV feedthrough bore ±0.005mm; temperature uniformity ±0.5°C across 300mm wafer.

Industries & Applications

Match the component to its operating environment, assembly interfaces and documentation requirements.