Multilayer PCB consist of 3 or more circuit layers bonded together by a thickness of insulating material called prepreg and core. Multilayer printed circuit boards are most complicated than others, and are generally considered to be the most sophisticated PCB product due to their construction methods and design complexities.
These are a few of the applications using multilayer printed circuit boards:
Communications
industrial controls
GPS technology
Aerospace
Computers
Military
Medical
Satellite systems
General specification for Multi-layer printed circuit board
1, 4-38 layers
2, Board finished thickness: 0.3mm-7.0mm
3, Material: FR-4, CEM-1, CEM-3, High TG, FR4 halogen Free, Rogers, Telfon.
4, Max. Finished board size: 23*25(580*900mm)
5, Min. Drilled hole size: 6mil(0.15mm)
6, Min. Line width: 3mil(0.075mm), Min. Line spacing: 3mil(0.075mm)
7, Surface finish/treatment: HASL/HASL lead free, Chemical tin, ENIG,Immersion Silver, OSP, etc.
8, Copper thickness: 0.5-20 oz
9, Solder mask color: Green/yellow/black/white/red/blue
10, Copper thickness in hole: >25.0 um(>1mil)
Min.trace W/S: 3/3mil
Max.layer count: SS, DS to 32L
Max. working PNL size:21"x24"
Material: FR4, Hi-tg, CEM-1, CEM-2 and more
Impedance Control & Surface finish.
Special futures
Thickness: 1.6mm
Application: projector or projecting apparatus
Minimum trace size: 0.1mm
Minimum drill: 0.15mm
With blind and buried holes
Layers: 1 to 28
Board finished thicknesses: 0.2 to 7.0mm
Materials: FR-4, CEM-3, high Tg, halogen-free FR4 and Rogers,F4B
Maximum finished board size: 580 x 900mm
Minimum hole size: 4mil (0.1mm)
Minimum trace width/space: 3.5/3.5mil
Surface finishes/treatments: HASL, lead-free HASL, immersion gold, gold plating, immersion silver, immersion tin and OSP
Copper thicknesses: 0.5 to 6oz
Solder mask colors: green, yellow, black, white, red and blue
Copper thickness in hole: >18um
Inner packaging: plastic bag (vacuum packing)
Outline tolerance: ¡À0.13mm
Hole size tolerance: (PTH) ¡À0.076 and (NPTH) ¡À0.05mm
With UL and TS16949:2002 marks
Special requirements: buried and blind vias, impedance control, via plug, BGA soldering and gold finger
Profiling: punching, routing, V-cut and beveling
OEM services to all sorts of printed circuit board assembly as well as electronic encased products are provided.
We just processed in a large batch of chipsets. I posted below current inventory and attached pictures of each type of chipset. Please review and let me know your interest/offer.
Chipset 1 (H61) â?? 3,350 units
Chipset 2 (H81) â?? 2,206 units
Chipset 3 (H55) â?? 436 units
Chipset 4 (B250) â?? 1,600 units
Chipset 5 (SR406) â?? 345 units
All weather traction
Enhanced controllability
Fuel efficient drive
Excellent durability
The Hankook Smart Flex AH35 is a highway terrain all-season tire manufactured for commercial vehicles. The tyre model is made to be mounted on the vehicle's steering axle.
Hankook Smart Flex AH35 - Key Features
All-Weather Performance: The tire offers reliable traction in dry, wet, and winter conditions, thanks to its wide grooves and 3D sipes, which also prevent hydroplaning.
Enhanced Control: The ribbed tread design ensures constant road contact, improving steering response and driving stability.
Fuel Efficiency: The optimized 3D siping reduces rolling resistance, leading to lower fuel consumption and CO2 emissions.
Durability: Reinforced carcass structure maintains the tire's shape under heavy loads, extending tread life and making it cost-efficient.
Bicheng provides RD, high-tech companies and organizations, large and small, and some universities with High frequency material PCB, including Rogers and Taconic.
Taconic
20mil(0.5mm)
30mil(0.762mm)
40mil(1.0mm)
ER 2.55
3) NPTH and PTH
4) Together with FR-4 combination
5) Application: Power divider, Combiner, Coupler, Power amplifier, Trunk amplifier, Station and 3G antenna.
Printed Circuit Board Manufacturing, which is our major business. I think you already know, we are a PCB manufacturer. We have 2 branch factories dedicated to Quick Turn PCB Prototypes Manufacturing, Small and Medium-volume Printed Circuit Board and FPC Manufacturingservices. Our market target is the High Multilayer circuit, High Density board, Special Material & Process Printed Circuit Boards.
Production Description
Layer # As request
Unit size/mm As gerber files
Panel size/mm As gerber files
Units in Panel 1
Material Fr4 Tg135
Finished Thickness/mm 1.6mm
Outer Copper/oz 1
Inner copper/oz N.A
Surface treatment HASL LF
Solder mask Green x 2 sides
Silk Screen WhiteX 2 sides
Profiling CNC
Test Way Probe flying or fixture test