To make a high-quality lead frame, not only does the designer need precise calculations, but also a precise processing technology, that is – precision etching! Do you know the secret behind this technology?

Precision etching is a high-precision processing technology that can carve micron-level patterns and structures on metal films or photoresists. The chemical reaction of ferric chloride chemical agents corrodes the unprotected parts to form the final desired pattern. In the production of lead frames, this technology can achieve extremely high precision and stability, so that the lead frame can maintain good electrical connection performance under extreme environments such as high temperature and high pressure.

In precision chemical etching, a substance called “mask” is needed, which can protect the areas that do not need to be etched, and at the same time, the etching liquid can only act on the areas that need to be etched. The production of masks also requires high-precision photolithography technology, which requires a complete set of processing processes and equipment to ensure the production of high-quality masks.

Precision etching is a high-precision, high-tech processing technology that can achieve micron-level processing accuracy. The current etching thickness is between 0.01mm-2mm, which provides important support for the development of the modern microelectronics industry. If you are curious about this technology, please leave a comment and discuss it with us!