Just Ask Happy: Electroless Copper vs. Direct Metallization


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We asked for you to send in your questions for Happy Holden, and you took us up on it! The questions you've posed run the gamut, covering technology, the worldwide fab market, and everything in between. What do you think about electroless copper vs. direct metallization? Enjoy.

Q: What are your thoughts on electroless copper vs. direct metallization?

A: Both get the job done! Electroless copper is the more traditional method but may have some problems with its internal crystalline strength when used with stacked microvias. Direct metallization is a newer technology that has come a long way in their development and is one of the few ways to successfully metallize polyimide film for flex.

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