2015年3月30日星期一

PCB Repair

As we know, PCB Is customized product. Manufacturers produce PCBs based on customer’s Gerber Design. No matter how good electronic contract manufacturers become at producing ever-smaller and more complex circuit boards, every now and then, a defect  will be produced. In batch production, maybe it will not be a major issue. Due to it’s common when a certain small percentage of loss is expected. However, in a small order even sample order, what if the circuit board is unique? In this case, you could be looking at huge costs to recreate it, or even larger costs if you move forward anyway. To resolve these fails, it uses a PCB repair service.

PCB Repair Process:

1. Repair

When a component which was working has failed and you don’t know why, commonly this is the most common reason you might need to use repair service. Luckily, electronics experts can analyze both the original schematics and the resulting board to discover the underlying problem. Often, it's something as simple as a single broken bit of circuit wiring or a single failed component that can be fixed for far less than it would cost to recreate the board.

2. Rework

Sometimes, it's the initial design that's flawed. A capacitor cannot handle the charge it needs, or a particular computer chip proves to be incompatible with the board. In this case, PCB board repair services can take a look at the original design specs, compare them to the finished product, and uncover which component(s) are causing the issue.
From there, it's a relatively simple matter to find suitable replacements which can meet your original specifications.

3. Modification

Or, perhaps your PCB works, but just not quite up to par. Perhaps it fails to meet a necessary requirement, such as FCC feedback shielding standards. If this is the problem, much as with rework efforts, your PCB repair service can take the working design and improve on it so it meets your needs.

4. The Protection Process

Finally, there is the highly important process of making sure all of those components can work in extreme conditions. A special type of coating is either done by dipping the components into a solution or spraying them, allowing the coating to protect the entire board from extreme heat, cold, possible corrosion or leakage, and even helps prevent shortages should condensation accumulate.

Concluded, as the development of PCB repairmen, the defects of PCB are decreasing in the finished production. Of course, it may cost some more time to find out these problems and repair them. But all we do are for better quality and better functions of PCB.

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