Capabilities
Whether polymers, gold, or other metals, materials skills and expertise are in our DNA. We’ve built on our core machining capabilities to develop a broad portfolio of offerings, from precision machining and rapid prototyping to engineering and testing.
Precision Polymer Components
PFA Weldments
PFA is a tough, flexible fluoropolymer used for applications requiring high purity and chemical resistance with low stiffness, such as flexible tubing and fluid processing equipment. Our PFA weldments help ensure quality and cleanliness for appropriate liquid delivery.
Gun Drilling
Developed to drill long, accurate holes in all types of plastic materials when conventional CNC lathe machine capabilities are not adequate for boring holes to extreme depths with precise accuracy. C-Hawk’s gun drilling machine allows for hole diameters from .062” to 1.25” and can accommodate up to 23” lengths, providing customers with more accurate parts, rapid turnaround, and lower cost.
Welding
C-Hawk offers a wide range of plastic welding techniques to meet your project’s needs.
Bonding
Solvent-bonding plastic involves using a solvent to partially dissolve two surfaces made of similar materials, which become bonded together after the solvent evaporates. Diffusion bonding bonds together like materials at the molecular level through heat and pressure at glass transition temperatures. No solvent is applied, and clear bonds can be made with multiple ports or channels. C-Hawk also offers adhesive bonding and mechanical fastening.
Forming
C-Hawk’s thermoformed and pressure-formed parts typically replace curved or shaped sheet-metal parts that require excessive welding and/or finishing; they can also replace fiberglass and wood. Thermoforming heats a plastic sheet to a pliable forming temperature, forming it to a specific shape in a mold and trimming it to create a usable product. Pressure forming is used on highly detailed parts, exerting 5x the pressure of thermoforming to move material into the detailed areas.
Fabrication
For new products at the R&D stage or initial low-volume production, C-Hawk’s plastic fabrication provides an excellent manufacturing solution that doesn’t require a heavy investment and extended lead times for tooling.
Machining
C-Hawk specializes in temperature controlled, high-precision, contamination-free vertical milling and turning of all types of plastics, including PEEK, Ultem, UHMW, and PTFE.
Surface Technologies
Gold Plating
Gold plating is a key feature of metal components used in certain semiconductor capital equipment, allowing for uniform heating and reflectivity throughout a semiconductor chamber. Our products have a direct effect on the silicon wafer and are critical to its overall yield and performance, plating aluminum, brass, and copper substrates for the epitaxy market.
Passivation
Passivation protects stainless-steel surfaces from corrosion by implementing a microcoating of nitric or citric acid to create a protective oxide layer on the surface.
Anodization
Electrochemical anodization is used to convert a metal surface into a corrosion-resistant layer, activating the surface layer to serve as a protective coating for the equipment.
Chrome Plating
As with gold plating, we are a global leader in the chrome plating process. Not merely decorative, chrome plating also adds hardness and contributes to the corrosion resistance of the parts being plated.
Nickel Plating
Nickel plating serves as a tie layer for gold plating. It prevents the diffusion of copper into a part’s gold top layer, as this diffusion can degrade electrical characteristics and contacts’ resistance to corrosion.
Gas Delivery
Bending
Our bending expertise allows us to fabricate complex bent gaslines with compound angles. And with our CNC bender high production runs are accurate and cost effective.
Particle Surface Testing
Particle Detector capable of measuring down to 0.1 µm (size range 0.1 – 0.5 µm)
Ultrasonic Cleaning
In-house Ultrasonic DI (Deionized) water wash and Filtered N2 dry for UHP orbital welded gaslines as per SEMI Standard E49.7
Machined Blocks/Flanges
We offer a broad range of supporting products for optimized gas delivery, including UHP custom precision machined blocks and flanges.
Gas Distribution Assemblies
Our line of custom-made, build-to-print assemblies enables more controlled, precise engineering for gas lines, valves, and manifolds. Configurable to accommodate virtually any box size.
TIG Large OD Weldments
Our seven GTAW (Gas Tungsten Arc Welding)/TIG (Tungsten Inert Gas) stations with the support of our machine shop for weld fixture, can provide solution for complex LOD weldment fabrication and accommodate customer requirements efficiently for quick turnaround.
Ultra-High Purity (UHP) Weldments
Our UHP gas delivery systems for semiconductor OEM equipment ensure purity and safe conveyance of the specialized gases essential to chip manufacturing processes.
Systems & Modules
Field Service
We offer field service engineering (FSE) support for start-up or troubleshooting.
Testing
Our test team performs functional testing in coordination with customer test specifications and fixtures.
System Integration
Once we have manufactured and purchased all of the BOM components, we perform system integration and testing. We offer OMS development and refinement.
Vertical Integration
This is a key value add for C-Hawk: We can vertically integrate all plastic BOM items while utilizing a competitive global supply chain for our buy parts.
Assemblies
We have the capacity and capabilities to perform box build assembly and testing. We offer both vertically and non-vertically integrated manufacturing and testing solutions.
Box Builds
We have the capacity and capabilities to perform box build assembly and testing. We offer both vertically and non-vertically integrated manufacturing and testing solutions.
