here we consider the benefits of manufacturing precision parts using chemical etching

Apart from avoiding risk of thermal stress and uneven edges which we discussed previously that can occur when using other manufacturing processes for precision parts, there are other benefits to using chemical etching.

complexity

Devices are becoming increasingly smaller, driving the need for small-scale, lightweight components with intricate designs and tight dimensional tolerances.

Chemical etching machines features like angles, holes and slots simultaneously, saving time and money for complex patterns used in for example, lead frames and filters. It is also capable of part-etching – used for branding or etching score lines which aids forming of parts like EMC /RFI shields and avoiding deformation.

prototyping

It is essential to be able to test designs and make adjustments quickly and easily and without costly tooling. Because tooling is digital with chemical etching, it is more cost effective than conventional methods. In addition, if multiple part designs are required using the same material and thickness, they can be arranged on the same tooling (compound tooling), again reducing costs and expediting the prototyping process.

eliminate contaminents

The acid involved in chemical etching is rinsed away as part of the regular cleaning process. This means that any contaminents or hard particulates are also washed away unlike when using other manufacturing methods.

see also: SMT stencils

stencils and squeegee blades