Photochemical Etching: A Novel Way to Make Microstructures

Karl Martinson of Micrometal Etching Group on how it works.

Photochemical etching has been around for decades as an engineering technology to create fine structures. It’s conceptually simple: impress an image of the desired structure on a metal substrate, using inks or coatings that are chemically resistant, then immerse the entire substrate in a strong etchant that will dissolve away unwanted material, leaving behind a high-resolution and complex part that can be extremely small. As a micro machining technology, it can do a lot more than manufacture watch springs, and to discuss this interesting technology and advanced applications. 

Jim Anderton discussed applications for the technology with Karl Martinson, Director of Business Development, North America, for the Micrometal Etching Group of Baden, Germany-based Wickeder Westfalenstahl.

 

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Written by

James Anderton

Jim Anderton is the Director of Content for ENGINEERING.com. Mr. Anderton was formerly editor of Canadian Metalworking Magazine and has contributed to a wide range of print and on-line publications, including Design Engineering, Canadian Plastics, Service Station and Garage Management, Autovision, and the National Post. He also brings prior industry experience in quality and part design for a Tier One automotive supplier.