Custom Multilayer Printed Circuit Board Manufacturing 24 Hours Fast PCB Quote Low Cost Multilayer PCB Fabrication
Multilayer PCBs (also known as ML-4, ML-6, ML-8, ML-10, ML-12 etc) have one or more conductor pattern inside the board, to increase the area available for the wiring. This is achieved by gluing (laminating) several double-sided circuit boards together with insulating layers in between.
The number of layers is referred to as the number of separate conductor patterns - usually even and including the two outer layers. Most boards have between 4 and 12 layers, but PCBs with almost 100 layers can be made.
Since the layers in a PCB are laminated together, it's often difficult to tell how many there are, but if you inspect the side of the board closely you might be able to count them.
Large super computers often contain boards with plenty of layers, but since it's becoming more efficient to replace these computers with clusters of ordinary PCs, high layer counts are now less common.
The vias described in Double-sided PCBs always penetrate the whole board. When there are multiple layers of conductor patterns and you only want to connect some of them, vias waste space that could be used to route other wires. 'Buried ' and 'blind ' vias avoid this problem because they only penetrate as many layers as is necessary.
Blind vias connect one or more of the inner layers with one of the surface layers, without penetrating the whole board. Buried vias only connect inner layers so you can’t see them by looking at the surface of the PCB.
In multi-layer PCBs whole layers are almost always dedicated to Ground and Power. So we classify the layers as Signal, Power or Ground planes. Sometimes there is more than one of both Power and Ground planes, especially if the different components on the PCB require different supply voltages.
1. PCB fabrication.
2. Turnkey PCBA: PCB+components sourcing+SMD and through-hole assembly
3. PCB clone, PCB reverse engineering.
PCB or PCBA Files Requests:
1. Gerber files of the bare PCB board
2. BOM (Bill of material) for assembly (please kindly advise us if there is any acceptablecomponents substitution.)
3. Testing Guide & Test Fixtures if necessary
4. Programming files & Programming tool if necessary
5. Schematic if necessary
Global Well Electronic Inc. is a professional PCB solution supplier from Shenzhen, China, integrating PCB circuit board production and processing, STM processing and mounting, PCBA OEM, component purchasing, PCB/PCBA custom design-production- A comprehensive PCB circuit board company with one-stop turnkey service of processing-assembly-finished products. The company has a strong supply chain system, a professional and efficient collaborative team, a sound and complete quality control system, and the business philosophy of honesty and trustworthiness, customer first, and presents the products to everyone with low prices, reliable quality, high-quality service and after-sales service. client.
We provide total PCB solutions from PCB design to final mass production, including PCB fabrication and assembly, component sourcing, solder paste stencils, conformal coatings, and more. Serving the global electronics field, including industrial control, medical electronics, military equipment, power communication, automotive electronics, AI artificial intelligence, smart home and other industries.
Our factory located in Shenzhen, and have almost 300
employees, more than 30 production lines include SMT, DIP, automatic welding, aging test and assembly. We have SMT machines from Japan and Korea, automatic solder paste printing machines, solder paste inspection machine(SPI)12 temperature zone reflow soldering machine, AOI detector, X-RAY detector, wave soldering machine, EM PCB ,dispenser,laser print machine etc., Different line configurations can meet requirements from small sample order to bulk shipment.
Our company has obtained ISO 9001 quality system certification and ISO 14001 system certification. With multi-testingprocedures, our products carry out the quality system standard strictly.
(1)PCB Technical Specification
| Order Quantity | 1-300,000,30000 Square Meter/Square Meters per Month module electronic board |
| Layer | 1,2,4,6,upto 24 layer |
| Material | FR-4,glass epoxy,FR4 High Tg,Rohs compliant,Aluminum,Rogers,etc |
| PCB type | Rigid,flexible,rigid-flexible |
| Shape | Any shape: Rectangular,round,slots,cutouts,complex,irregular |
| Max PCB dimensions | 20inch*20inch or 500mm*500mm |
| Thickness | 0.2~4.0mm, Flex 0.01~0.25'' |
| Thickness tolerance | ± 10% |
| Copper thickness | 0.5-4 oz |
| Copper thickness tolerance | ± 0.25oz |
| Surface finish | HASL,Nickle,Imm Gold,Imm Tin,Imm Silver,OSP etc |
| Solder mask | Green, red,white,yellow,blue,black, Double-sided |
| Silk screen | White,yellow,black,or negative, Double-sided or single-sided |
| Silk screen min line width | 0.006'' or 0.15mm |
| Min drill hole diameter | 0.01'',0.25mm.or 10 mil |
| Min trace/gap | 0.075mm or 3mil |
| PCB cutting | Shear,V-score,tab-routed |
(2)Turnkey PCBA Capabilities
| Turnkey PCBA | PCB+components sourcing+assembly+package |
| Assembly details | SMT and Thru-hole, ISO lines |
| Lead Time | Prototype: 15 work days. Mass order: 20~25 work days |
| Testing on products | Flying Probe Test, X-ray Inspection, AOI Test, functional test |
| Quantity | Min quantity: 1pcs. Prototype, small order, mass order, all OK |
| Files we need | PCB: Gerber files(CAM, PCB, PCBDOC) |
| Components: Bill of Materials(BOM list) | |
| Assembly: Pick-N-Place file | |
| PCB panel Size | Min size: 0.25*0.25 inches(6*6mm) |
| Max size: 20*20 inches(500*500mm) | |
| PCB Solder Type | Water Soluble Solder Paste, RoHS lead free |
| Components details | Passive Down to 0201 size |
| BGA and VFBGA | |
| Leadless Chip Carriers/CSP | |
| Double-sided SMT Assembly | |
| Fine Pitch to 0.8mils | |
| BGA Repair and Reball | |
| Part Removal and Replacement | |
| Component package | Cut Tape,Tube,Reels,Loose Parts |
| PCBA process |
Drilling-----Exposure-----Plating-----Etaching Stripping-----Punching-----Electrical Testing-----SMT-----Wave Soldering-----Assembling-----ICT-----Function Testing-----Temperature - Humidity Testing |
Packing details:
PCBA are packed into plastic bags. Plastic bags are put into small carton. 4 small carton into a big carton.
A big carton: 35×32×40 cm size.
Shipping Express:
FedEx, DHL, UPS, TNT, EMS, private lines, etc.
Air freight, Sea shipping
If you need help on PCB layout, you can contact us and send the board to us. We also provide Reverse Engineering Service.
We have been providing PCB Manufacture for many years in China,and we have rich experience in product production and product assembly.We believe our team will provide high quality and low cost service for you.
Thank you very much for all your support .
Best Regareds.
Q: What files do you use in PCBA fabrication?
A: Gerber or Eagle, BOM listing, PNP and Components Position
Q:Is it possible you could offer sample?
A: Yes, we can custom you sample to test before mass production
Q: When will I get the quotation after sent Gerber, BOM and test procedure?
A: Within 6 hours for PCB quotation and around 24 hours for PCBA quotation.
Q: How can I know the process of my PCBA production?
A: 7-10 days for PCB production and components purchasing, and 10 days for PCB assembly and Testing
Q: How can I make sure the quality of my PCBA?
A: We ensure that each piece of PCBA products work well before shipping. We'll test all of them according to your test procedure. Also if there are any defect items during the shipping, we also can be free to repair for you.
