作者： pcb world link

When you finish your PCB design, you may think it can be made directly. But many designs have DFM problems, the factory can not produce it well.

DFM means Design for Manufacturability. It is the rules to make your board easy to produce.

Here are some common DFM mistakes we see every day:

1. Trace width and space too small. If the line is too thin, copper may break. Small gap will cause short circuit.
2. Pad size not match component. Pads too small, the part can not solder well.
3. No enough clearance near hole and slot.
4. Copper area without thermal relief, easy to have bad soldering.
5. Outline too close to traces, easy damage when cutting.

These small problems will make your PCB sample rejected. You need rework design, waste time and money.

If you are not sure your design is ok, you can send your Gerber file to us. We can check DFM for you before production.

Contact us for your PCB and PCBA order.

If you want a correct PCB or PCBA price, prepare right files first. Many new buyers do not know which file to send.

First, Gerber file. This is the main file for PCB making. Without Gerber, we can not calculate the board cost.

Second, BOM list. BOM show all components you need, part number, quantity. It is very important for PCBA assembly.

Third, pick and place file (XY file). We use it for SMT machine. If you only make bare PCB, you may not need this one.

Sometimes we also need board specification: thickness, surface finish, copper thickness.

If you do not have Gerber file, you can send us the physical board, we can do PCB reverse engineering for you.

Send all these files to us, we will give you quotation quickly. If you have any question, contact us anytime.

If you want to make a PCBA, the first question is always: how much it cost. There is no one fixed price. Many factors will change the final price.

First is your PCB board. More layers, special material, thick copper or surface finish will cost more. Simple 2 layer board is cheaper.

Second is components. Some chip parts are expensive, some hard to find. If you provide BOM list, we check component stock for you.

Third is order quantity. Small sample order price higher per piece, big bulk order get better unit price.

Also, special process like conformal coating, press fit, testing will add extra cost.

If you send us Gerber file and BOM, we can give you clear quotation fast. Contact us for your PCBA price now.

Many people ask me: I have a working PCB sample, but I do not have any design file like Gerber. Can I make more same boards?

Yes, this is PCB reverse engineering, also called copy board.

We take your physical board, scan and check all the circuit tracks and components. Then we make Gerber file and BOM list for you.

You can choose different service:

• Only get Gerber and BOM document
• Copy board + produce blank PCB
• Copy board + PCBA assembly, ready to use

Important: We only work on the board that you own the right. We do not do copy for illegal product.

Many customers use this service when their old board is out of stock, or the original supplier stop support.

If you have a sample and want to check the cost, send picture of your board to us. We will check for you.

Hi friend, If you are new to electronics project, you probably mix up PCB and PCBA many times. A lot of our customer ask this question first, so we write this simple guide for you.

First, PCB. PCB mean bare circuit board. It only have copper line, solder mask and pads. No chip, no resistor, no capacitor on it. It can not work by itself. You can use it when you only need empty board.

Then PCBA. PCBA is PCB plus all components soldered on it. We do SMT placement, solder, test it. When you get PCBA, you can power it up and test your function directly. That is the ready working board.

Let me make it easy: PCB = empty board PCBA = board with all parts, ready to use.

Many small startup and maker come to us, they don’t know which one they should order. Some only need bare PCB for self assembly, some want turnkey PCBA service.

What we can do for you: ✅ PCB fabrication ✅ SMT assembly, small batch welcome ✅ BOM component sourcing ✅ PCB copy / reverse engineering ✅ Functional test, firmware program ✅ Ship to Mexico, USA and other country, we can do DDP shipping.

You only need send us Gerber file and BOM list, we give you clear quote.

In our next blog posts, we will talk about Gerber file check, common BOM mistake, DFM tips, NFC board design and more useful things.

If you have a project now, feel free to contact us. We happy to check your files and answer your questions.