The increasing complexity of electronic components and switches continually requires faster signal flow rates, and thus higher transmission frequencies. Because of short pulse rise times in electronic components, it has also become necessary for high frequency (HF) technology to view conductor widths as an electronic component.
Depending on various parameters, HF signals are reflected on circuit board, meaning that the impedance (dynamic resistance) varies with respect to the sending component. To precent such capacitive effects, all parameters must be exactly specified, and implemented with the highest level of process control.
Critical for the impedances in high frequency PCBs are principally the conductor trace geometry, the layer buildup, and the dielectric constant of the materials used.
What is a high frequency PCB?
A high frequency printed circuit board, whether it’s rigid or flex, offers faster signal flow rates and a frequency range of up to 100 GHz. It’s important to note that there are numerous materials designed to operate at high frequency level. HF PCBs are defined by lower dielectric constant, lower dissipation factor, and low levels of thermal expansion. They are used regularly for HDI technology. They are also used extensively in high speed communications, telecommunications, and RF microwave technology.
Materials Used for HF PCBs
Special materials are required to achieve the high frequency provided by this type of PCB. There are a variety of substrate materials that will support your design and may differ based on signal speeds required and the application of the circuit board.
In terms of price, FR4 is the least expensive compared to dedicated high speed materials and Teflon,with Teflon being the most expensive. Though, FR-4 starts to drop off in performance when signal speed edges above 1.6 GHz.
Newer generation substrates, Teflon, and flex circuits are the best options when it comes to Dk, Df, water absorption, and survivability in the environment.
If a printed circuit board requires a frequency above 10GHz, newer generation substrates, Teflon, and Flex substrates are your best option since they are far superior to traditional FR-4 material.
The most common suppliers of high speed substrates are Rogers, Isola, Taconic, Dupont, and Megtron materials by Panasonic. All of these materials typically are lower Dk and lower loss.
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.
| 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 |
| 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.
Q1: Do you have a price list?
A: We are OEM Manufacturer. We produce products per Customer’s designs and instructions. Hence we don’t have a price list.
Q2: What’s your MOQ for PCB, PCBA?
A: No MOQ for PCB and PCBA. We can do prototype and mass production as well.
Q3: Are my files safe?
A: We can sign an NDA(Non-disclosure agreement).Your files are held in complete safety and security.We protect the intellectual property for our customers in the whole process.All documents from customers are never shared with any third parties.
Q4: What is needed for PCB & PCBA quotation?
A: PCB: Quantity,Gerber file and technic requirements( board material, board size, surface finish treatment, copper thickness, board thickness).PCBA: PCB information,BOM,Testing documents.
Q5: What file formats do you accept for PCB and assembly?
A: Gerber file: CAM350 RS274X
PCB file: Protel 99SE,P-CAD 2001 PCB
BOM: Excel (PDF,word,txt)
Q6: Can you procure all parts in BOM for us?
A: YES, we can source all parts as per your bom list required.
Q7: Do you have after-sales product servicing available for your customers?
A: Yes, for any quality problems, we will take our responsibility to solve it for you at any time.
