Testing Printed Circuit Boards to Ensure their Functionality and Quality
PCBs (Printed Circuit Boards) are used in nearly everything these days. Electronic devices such as computers, toys and phones involve the use of PBCs. PBCs play a critical role in ensuring these devices function and if the PBCs stop working, the device would also malfunctioning. When this happens, manufacturers of electronic devices will have to deal with some inconvenience because they will need to pull out their products from the market and spends lots of resources to fix the issue.
Printed circuit boards can malfunction when the PCB assembly did not follow quality standards. Their functionality and quality should be examined in the get-go. The majority of electronic device developers work with reputable PBC manufacturers and assemblers to ensure the PBCs are checked for efficiency, quality and resilience before the maker releases them for distribution.
PCB Quality Standard
Makers of PBCs work carefully on the layout to guarantee the optimal quality of their products. Printed circuit boards can be customized to fit electronics’ specifications. But, PCB manufacturers still make sure that their products undergo the same testing process to measure and maintain their quality. With the increasing numbers of devices being developed these days, the need to guarantee the dependability and quality of PCBs also increase. This is because their quality affects how an electronic device would function.
When picking a maker or provider of PCB Assembly china, inquire about the testing procedures fist to ensure the quality. PCB testing is vital to determine the functionality, quality and performance of PCBs. In general, the testing includes X-ray gold thickness test, high-voltage E-text, automatic optical inspection, photo electricity balance tests, back lighting test and more.
To make sure that PCBs run properly, manufactures and assemblers test the components from the ground up. With this, customers will be able to get flawless products and avoid losses on their investment.
Components to be Tested
When testing PCBs, it’s important to pay attention to details. A circuit board has a lot of complex components that should be tested. These include:
- Capacitors. These small electronic devices work by storing energy in the form of an electrostatic field. They block direct current flow and allow the flow of indirect current while storing energy. Testing capacitors involves applying a voltage to examine if they are functioning as required. Capacitors that are not functioning can cause a leak, short or total malfunction.
- Diodes. These PCB components transit current in one direction while blocking the current in the opposite direction. These sensitive devices require careful testing. Testing them should be done by professionals to prevent damage.
- Resistors. These devices have a couple of terminals which allow currents to produce voltage. To test these devices, an ohmmeter is used. The resistor must be isolated after which a digital multimeter is used. The leads will then be connected to the resistor for testing.
Because printed circuit boards are made of different complex parts, it is imperative to test the circuit board for potential errors or faults that could lead to malfunctioning. The testing should include every component to maintain a functioning PCB.