MULTILAYER PCB MANUFACTURING
What is Multilayer PCB?Multilayer PCB refers to the circuit card that is laminated by 3 or more copper layers. With the exception of the 2 outdoor copper layers, more copper layers are sandwiched in between the protecting products. Although the manufacturing capacities of a couple of distributors are claimed beyond 40+ layers (We can rise to 40 layers), 99% of the present market need is concentrated in 4-16 layers multilayer boards.
Benefits of Multilayer PCBs ?Contrasted to 1 or 2 sided circuit boards, multilayer boards sustain denser style as well as design, saving more spacing, which remain in line with the trend of smaller sized and also smaller interaction products. Multilayer boards decrease the demand for cords, successfully shorten the range in between signal lines, sensible internal layer style can significantly minimize EMI, which fulfill the high-frequency communications.
Leading Multilayer PCB Manufacturer?
MULTILAYER PCB CAPABILITIES
FR4 (140Tg, 170Tg, 180Tg), FR-406, FR-408, 370HR, IT180A, Metal Core, Polyimide, Rogers
4350B/3003/4003C/5880, Taconic, Teflon, etc
KB, ITEQ, SY, ISOLA, Rogers (Arlon), Ventec, Laird, Nelco, Bergquist, DENKA, Panasonic,
Taconic, or other laminate on customer's request
IPC Classes 2/3
Any Layer, up to 3+N+3
More than 10 layers: 0.5*Layer Count*0.2mm
Solder Mask Colors
White, Black, Green, Blue, Red, Yellow, Orange, Purple, Matte Green, Matte Black; Carbon Ink
Super White Inks/Solar/Carbon Inks
Solder Mask Thickness
Solder Mask Dam
Bare Copper, Hasl lead-free, ENIG, ENEPIG, Gold Fingers, OSP, IAg, ISn, etc
Copper Thickness: 20-35um Tin: 5-20 um
Nickel: 100u"-200u" Gold: 2u" -4u"
Hard Plated Gold:
Nickel: 100u"-200u" Gold: 4u"-8u"
Nickel: 100u"-200u" Gold: 5u"-15u"
Immersion Silver: 6u"-12u"
OSP: Film 8u"-20u"
Min Hole Size
Min Trace Width/Spacing
Minimum Solder Mask Clearance
Min Annular Ring
Min Pad to Pad Clearance
Line Width/Space Tolerance
Board Thickness Tolerance
Hole Diameter Tolerance
Hole Location Tolerance
Layer to Layer Registration
Blind Vias Aspect Ratio
V- CUT Tolerance
Warp and Twist
≤0.50% (max cap)
AOI, 100% E-test
DFM Check,Expedited Production
Bonding, Impedance Control, Via in Pad, Press Fit Hole, Countersink/Counterbore Hole,
Castellated Vias, Edge Plating, Peelable Solder Mask, Resin Plugged, Plating Flat
Gerber, DXF, PCBdoc, ODB++, HPGL, BRD, etc
6L HDI PCB
12L HDI PCB
HDI PCB PANEL
MICROo-VIA FR4 PCB
Tenting ViasIt means that the vias are simply covered by solder mask ink. No additional process steps are required during fabrication.
Plugged ViasFor better BGA soldering, plugin the vias with inks or resin to prevent solder paste flow down into the vias.
Edge-platingMetalization of the board edge, for improving EMC performance, cooling, housing connection, Board-on-Board connection, or others.
Castellated ViasCastellated vias are holes that are made off the edge of the boards plated with copper, mainly used for board-on-board connections.
SlotsRemove the area of a PCB specified by the design file to form a specific shape, it can be plated or non-plated, through slot or in-depth slot.