How many pitfalls have you encountered in PCB proofing? How to get free PCB proofing? Free SMT patch?

I believe that every hardware engineer has had the experience of PCB proofing, and they all get their own exquisite PCBs with joy, but! Once you step into the pit of PCB proofing, it really makes people feel miserable!

Today I will tell you about the pitfalls of PCB proofing and introduce three key issues: 1. How to avoid pitfalls in PCB proofing? 2. How to make high-quality free PCB proofing? 3. How to make free SMT patches. Not only free, but also high-quality free! There is a free link at the end of the article.

In the picture below, which is a PCB drawn using Altium Designer, the highlighted traces are connected normally in the PCB file, but the actual PCB traces are broken after proofing . The problem is that this was discovered when a colleague was debugging after soldering all the components on the board. After soldering, the system did not respond when powered on. A closer look revealed that the traces were broken. . . .

The pitfalls mentioned above are very easy to eliminate. You can see the board manufacturing abnormality with the naked eye. The pitfall below is invisible to the naked eye. At work, about 1,000 test machines were made during the trial production of a certain mobile phone. Some of them could not be charged and were handed over to R&D personnel for analysis. The charging-related path is very long, with many modules and networks. After various cross-validations, it was discovered that a trace in the inner layer of the PCB was broken. This pitfall has never been encountered in previous projects. Two R&D personnel spent 3 days to identify the problem.

The PCB design tools we commonly use are Altium Designer, Cadence and PADS. For the sake of convenience, many students directly send the PCB source files to the board factory. There are two problems here. 1. There is no pre-board inspection of the PCB. 2. The board factory needs to convert the PCB into a gerber file, which may cause hidden dangers of problems.

Therefore, it is best for us to provide the PCB board factory with the gerber files that have been checked by us, such as checking the files with cam350 first, and choosing a large PCB factory with a good reputation.

Here comes the point!

Many students like to DIY some electronic products by themselves, but they don’t know that there is an excellent free PCB proofing platform that can provide free services with guaranteed quality and quantity.

The object of today's freebie is Huaqiu PCB Electronics , which is a subsidiary of Huaqiu. Electronics enthusiasts should be familiar to everyone, but its multi-layer PCB production business is not familiar to everyone.

Huaqiu Electronics has been established for more than ten years and can produce 20-layer 3-level PCBs , reaching the top level in the industry!

Five advantages of choosing Huaqiu HDI manufacturing:

1.Quality advantage: Finished products are shipped without re-production

2. Speed ​​advantage: Samples can be shipped in as fast as 5 days, with ultra-short delivery time and ultimate experience

3. Price advantage: self-operated factory, more affordable price for sample/mass production

4. Process capability: HDI board can be made up to 20 layers and 3 levels for proofing, and up to 14 layers and 2 levels for batch production

5. Materials/Equipment: Use Grade A plate, Mitsubishi high-end laser drilling machine

6. Cost optimization: According to the spring layer structure design of the autumn process, the price is lower and the delivery time is faster

For high-quality four-layer boards, you can make free proofs twice a month. For customers who pass the enterprise certification, you can get an additional 2 free proofing coupons!

Free proofing link (copy to browser to open):

https://www.hqpcb.com/zhuoluyex3?hq_source=gcskh-pcb

1. 5. How to get free SMT patch

Huaqiu Electronics not only launched free PCB proofing, but also launched small and medium-sized batches of free SMT patches. The free SMT patch link and activity description are as follows, which can meet the one-stop needs of hardware engineers.

Free SMT link (copy to browser to open):

https://www.hqpcb.com/account/smtOrder/index.html?hq_source=gcskh-smt

Students in need please get on the bus quickly.