Copper Chemical Etching

Copper chemical etching is an excellent process for applications in the electrical and electronic industries. This soft metal possesses high thermal and electrical conductivity and is one of the easier metals to photo-chemically machine or etch.

Copper Chemical Etching

The most common industrial application of etched Copper services is the foil in printed circuit boards (PCBs), however, acid etching of Copper has limitless applications. Its properties can be enhanced for specific applications by creating an alloy with another metal. For example, adding Beryllium increases physical strength.

Fotofab’s etching process produces designs that can withstand harsh indoor and outdoor environments. The process uses a strong caustic chemical to etch into unprotected parts of a metal surface to create a design or image formed to your project’s specifications.

Characteristics of Copper

Copper Alloys We Work With

  • High electrical and thermal conductivity that is second only to Silver
  • Durable for forming, stamping, bending, and chemical etching
  • Corrosion-resistant which can be enhanced with plating or coating (important in high-frequency applications where “skin-effect” issues must be considered)
  • Soft, ductile, and malleable so it can be drawn, “stretched,” or flattened in various shapes and sizes
  • Accepts soldering without special preparation or materials

Applications of Etched Copper

Copper is used in almost anywhere that there is an electrical circuit path on a printed circuit board, within an electrical component, such as a connector, or as a transitional device between circuit boards, including:

  • Lead frames
  • Inserts for injection molding
  • Fuse links and bus bars
  • Board-level EMI/RFI shields
  • Shielded enclosures with snap-on lids

Other Factors

  • Copper is an abundant metal, but prices have historically varied with significant market fluctuations
  • Bare Copper may cause an electrochemical reaction when in contact with some other metals
  • Copper is used mostly as a pure metal, but when greater hardness is required, it is put into such alloys as brass and bronze

Copper-Molybdenum Etching

Copper-Molybdenum is a composite material that has similar thermal properties to Tungsten-Copper. Its low density makes it suitable for applications where weight limitations are a factor. The combination of high thermal conductivity and low thermal expansion make Copper-Molybdenum perfect for semiconductor substrates, high power devices, electrical contacts, and more.

Contact Our Experts Today

Fotofab is ISO & AS9100D Certified, ITAR Registered, and RoHS compliant.
Get in touch if you have questions or are ready to start your custom project.

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