PCB Manufacturing FAQs

“We’ve trusted Rayming with multiple PCB orders, and they’ve never disappointed. Their manufacturing process is top-tier, and their team is always helpful. A+ service!”

I have had excellent service from RayMing PCB over 10 years. Your engineers have helped me and saved me many times.

Rayming provides top-notch PCB assembly services at competitive prices. Their customer support is excellent, and they always go the extra mile to ensure satisfaction. A trusted partner!

Q1. What PCB file format do You need?

For PCB fabrication, we require PCB design file in Gerber RS-274X format (most preferred), *.PCB/DDB (Protel, inform your program version) format or *.BRD (Eagle) format.

Q2. Is there any Minimum quantity (MOQ) requirement for the PCB order?

Generally, there is no minimum order quantity (MOQ) requirement for the pcb order.

Q3. How quickly will I receive a response to my quotation request?

We guarantee a response to all quotation requests within 24 hours.

Q4. How do you keep costs affordable for PCB manufacturing services?

We utilize the latest and most efficient manufacturing technologies, ensuring both time and cost savings for your projects.

Q5. How many years of experience do you have in the PCB manufacturing industry?

With over 20 years of combined expertise, we specialize in delivering advanced PCB assembly and manufacturing services.

Q6. What is the smallest trace width and spacing you can manufacture?

Trace width: 3 mils
Trace/line spacing: 3 mils
When working with narrower traces, the tolerance becomes tighter, which can lead to over-etching. However, our controlled etching process ensures accurate trace widths are achieved.

Q7. What solder mask colors do you offer?

We can use nearly all solder mask colors. The most frequently used options include Red, Green, Black, Blue, and White.

Q8. What surface finish options do you provide?

We offer a variety of surface finishes, including HASL, Lead-free HASL, ENIG, Immersion Silver, Immersion Tin, OSP, Soft Wire Bondable Gold, and Hard Gold.

Q9. What is the smallest hole size you can produce?

Mechanical drilling: 6 mils
Laser drilling: 4 mils
Including various hole sizes in a PCB design necessitates the use of additional drill bits during manufacturing, which can lead to higher costs and longer production times.

Q10. Does my board require impedance control and stack-up design?

Yes, we offer free impedance control calculations and stack-up design using industry-leading field solvers. Impedance control involves aligning PCB trace dimensions and placements with the substrate material’s properties to ensure signal strength remains within the desired range. By adhering to best design practices, many potential signal integrity issues can be prevented or minimized.

Q11. Can you manufacture a panel with different types of boards?

Yes, we can produce panels containing multiple board types. However, we will need to review your design files before providing a final confirmation.

Q12. Do you provide peelable solder mask services?

Yes, we do.
A peelable solder mask is used to protect specific areas of a PCB during the assembly process, particularly during wave soldering. It ensures that solder does not come into contact with the designated protected regions.

Q13. Can you produce flex boards?

Yes, we specialize in manufacturing both flexible and rigid-flex PCBs.

Q14. What electrical testing methods do you employ?

We utilize two primary testing methods:
1. Flying Probe
2. Test Fixture

Q15. Can you manufacture PCBs for high RF applications?

Yes, we are equipped to produce PCBs designed for high-frequency and RF applications.

Q16. Do you provide metal core PCBs?

Yes, we offer metal core PCBs with support for up to 6 layers

Q17. Can you bevel hard gold fingers?

Yes, we have the capability to bevel hard gold fingers.

Q18. Do you charge for PCB panelization?

No, we offer PCB panelization free of charge.

Q19. Can you manufacture High-Density Interconnect (HDI) PCBs?

Yes, we are capable of producing HDI PCBs. For further details, please visit our PCB Fabrication page. HDI PCBs achieve greater circuit density compared to traditional PCBs by incorporating advanced features and technologies, including blind/buried vias, laser-drilled stacked micro-vias, via-in-pad techniques, and more.

Q20. Can you produce PCBs with castellation holes (plated half-holes on the PCB edge)?

Yes, we offer castellation hole services.
We recommend using the largest hole size feasible for optimal results.

Q21. Do you offer V-scoring services?

Yes, we provide V-scoring for bare PCB orders as needed.

Q22. What factors influence PCB manufacturing costs?

1. Board quantity
2. PCB thickness
3. Number of layers
4. Copper weight
5. HDI features
6. Routing complexity
7. Impedance control requirements

Q23. Do you provide special milling or controlled-depth routing services?

Yes, we offer both controlled-depth routing and special milling.

Q24. What types of laminates do you use for PCB fabrication?

We utilize a wide range of laminates, including FR4, High TG FR4, Rogers, Arlon, Aluminum Base, Polyimide, Ceramic, Taconic, Megtron, and more.

Q25. Are your PCBs RoHS Compliant?

Yes. But we also offer leaded PCBs.