PSR-4000 LDI (US) laser direct imageable solder mask is said
to have fast exposure, requiring as little as 50-100 mj. Reportedly
produces quality imaging with straight sidewalls, fine feature resolution and
registration. Has a rich green color, satin surface finish and is low
halogen. Can be exposed in conventional flood exposure units. Meets
IPC-SM-840D and UL 94.
Taiyo America, www.taiyo-america.com