Single Sided PCB

These are the simplest printed circuit boards. Single-sided printed circuits do not require plating through holes and have a circuit pattern only on one side.

Double Sided PCB

Double sided printed circuits are one step up from the single-sided PCBs in their complexity. When fabricating double-sided boards, through-holes are usually required between the top and bottom pads; these pads are connected using a special copper plating process commonly referred to as Plated Through Hole (PTH).

Multilayer PCB

Multilayer printed circuits consist of four or more circuit layers bonded together by a thickness of insulating material called prepreg and core.

Hot Air Leveling (HAL) or HAL-lead free

Solder Mask over bare copper (SMOBC) and HAL-lead free (RoHS) or 63/37 Tin-lead over copper is the final finish. Copper is exposed by solder mask, is coated by Hot Air Solder Leveling (HASL).

Flash Gold

Guaranteed for Ultrasonic Bonding, Ball Grid Array (BGA), Lead free and RoHs compliant materials, Extremely flat and uniform.

Hard Gold (contact / bonding)

Gold fingers for contact purpose, Pads for rotary switch, Pads for Thermosonic Bonding, Lead free and RoHs compliant material.

Entek

Lead free & RoHs compliant materials, Extremely flat & uniform.

Electroless Nickel Immersion Gold finish (ENIG)

Contact surfaces. Minimum 1 micro-inch Gold over 100 micro-inch, Nickel Solderable surfaces, Electroless Nickel / Immersion Gold, Lead free and RoHs compliant materials, Extremely flat and uniform.