Double Sided Printed Circuit Board Prototyping FR4 2-layer Double-layer PCB for Multimedia Equipment

Double Sided Printed Circuit Board Prototyping FR4 2-layer Double-layer PCB for Multimedia Equipment

Double Layer, FR4, 2L/1.6mm
Gold sinking, ENIG, 4/4mil
SPECIFICATION:

Name: Double-layer PCB
Material: FR4
Application: Multimedia Equipment
Layers/plate thickness: 2L/1.6mm
Surface Treatment:
Gold sinking
Line width/line spacing: 4/4mil
Minimum Hole Diameter: 0.25mm
Technical Feature: Bondline


Two-sided PCB model, the foremost normally surface treatment is HASL. At constant time, OSP, gold plating, immersion gold, immersion silver, is equally applicable.
HASL- sensible appearance, simple to weld tin on the pad, easy welding, low price.
Double sided boards are wide used and relatively easy, each manufacturer can do, that the competition is usually on the price.

ENIG- stable quality, sometimes employed in the case of boding IC. For two sided board, using through hole within the middle connects two-sided traces, and there are 2 more processes than single aspect board, that is Electroless Copper and plating.