Qualified suppliers of epoxy laminates
Polyclad, Isola, Rogers, Global
Drill hits on a double-sided, FR-4 board with one once of copper
equals 2500 maximum and 1700 on MLB
Empire Electronics uses entry material that's aluminum foil and
Empire Electronics uses backup material that's .093" thick
Plated through holes
Shadow process: Electro Chemical Shadow II
Etchback and electroless
Plasma etch, Chemical etch
and electroless copper plating for multi-layer PC boards
Copper plating is accomplished through electrochemical copper sulfate
Two electroplate baths at 800 gallons each and one 1200 gallon bath.
Baths are monitored once-a-week.
Electrochemical. Baths are 800-gallon, tin baths. Baths are monitored
Gold-finger plating is accomplished via Technic Inc.
Empire Electronics also offers flash-gold plating, lead-free HASL,
Solder mask over bare copper
Solder mask is placed over bare copper via SMOBC on a Svecia Semimatic
printer. The Peelable soldermask and carbon ink available.
Empire Electronics uses ammonium chloride (Micronutrient)
Laser-sharp silkscreening with smallest letter 5 mil.
White, Yellow, Black, Red and/or others as required
Excellon CNC 6
Excellon CNC 6 drilling machine
accuracy and repeatability of 0.0005"