3 ms·
Epoxy resins are pretty transparent by themselves, opaque ones have additional materials or dyes added. Most dyes (also aromatic organics) are not active (i.e.
by jarvist 12y ago
Epoxy resins are pretty transparent by themselves, opaque ones have additional materials or dyes added.
Most dyes (also aromatic organics) are not active (i.e. transparent) in the near-IR.
- swamp40 12y agoYes, but if you were tasked with designing the epoxy that was going to be used in every IC everywhere, I would hope that you would go through the extra effort of adding dyes that were specifically opaque to UV and IR.