Invar Etching

Elcon Precision specializes in delivering top-notch Invar photo etching services. We use state-of-the-art equipment and resources to create an exceptional final product that matches your exact specifications and application.

High-Strength. Corrosion Resistant.

Invar (FeNi36) is a nickel-iron alloy known for its low coefficient of thermal expansion qualities. With mechanical properties that are similar to steel, Invar is a single-phase alloy that has the following qualities:

This solid, high-strength solution is ductile, weldable, and machinable.
Like other metal-based electrodes, Invar has amazing stress and corrosion resistance.
Invar offers high dimensional stability.
Like stainless steel, Invar has excellent thermal conductivity and tensile strength.

All of these qualities make Invar a highly suitable metal for photochemical machining. Elcon Precision delivers a high-quality Invar etching process that models the highest industry standards.

Tungsten, molybdenum, and kovar grids

Our Photochemical Etching Capabilities

Elcon Precision provides Invar etching services with benefits that enhance your application. You can expect the following benefits when you choose to work with:

High process control, guaranteeing parts that meet your specifications
Fast turnaround and etching time
Stress-free, burr-free precision parts that are ideal for post assemblies or stacking
Low-cost tooling
Design flexibility with digital tooling = increased complexity, with no incremental cost
Dimensional repeatability
Precise and complex geometries
3D photo etching (check out our control grids etching capabilities)
Knife and needle edges
Micromachining
Step and half etching
Selective plating and thin films
0.0005 in. to 0.100 in material thickness

When you submit your design to us, we’ll uphold the highest quality of customer satisfaction to get your product finished right.

Invar Applications

Invar is used in several different industries and applications. These include:

RF systems
MRI and imaging equipment
Antenna systems
Semiconductor equipment
Microelectromechanical systems (MEMS)
Automotive sensors

Industries That Use Invar Etching

Invar etching is used heavily in the following industries:

Solar
Military
Telecommunications
Electronics

Frequently Asked Questions

What types of Invar alloys are suitable for etching?

Invar is available in different alloy compositions with varying levels of nickel and iron. For example, Invar 36 is commonly used for etching due to its stability and properties. Connect with our team to learn more about which Invar alloy is best suited for your project.

What is the average turnaround time for Invar etching projects?

The etching rate is controlled by operators based on the process an expert team of engineers has developed for each part of your project. Generally speaking, the deeper the etches and the thicker the material, the slower the etching rate. If you’re seeking a quick turnaround time, it may be beneficial to choose a thinner material with a less complex design.

Connect with our team to learn more about the specific etch rate for your project based on your specifications.

Are there design considerations for Invar etching?

Fortunately, photochemical etching does not affect the material’s properties. Learn more about how Elcon Precision can handle your design specifications via our Invar etching process developed over the last 60 years.

Achieve Seamless Invar Etching With Elcon Precision

At Elcon Precision, we make Invar etching effortless. If you need precise Invar parts, contact us today to get in touch with a member of our team and discover how our etching solution can exceed your project specifications.