Multi-layer boards with a higher connection pad density than standard boards, with ﬁner lines/spaces, smaller via Holes and capture pads allowing microchip to only penetrate select layers and also be placed in surface pads.
1+n+1, 2+N+2, 3+N+3
FR-4 high performance, Halogen-free FR-4, Rogers 4350B
Copper weights (ﬁnished)
18um – 70um
0.40 mm – 3.20 mm
600 mm x 450 mm; dependent upon laser drilling machine