Any individual that deals with packaging of electronic devices should certainly know that nothing plays a more significant role than printed Circuit boards (PCBs) in electronics.
As the year of 2021 almost finished,do you have received your supplier info you that they have to adjust price and lead during this year. In that time, there have been many periods of shortages and price variations. None of those periods compares to the situation today. Seldom does a day pass without someone requesting a conference call to discuss the price increase. Everyone asks the same question: “What is the root cause?”
One of the biggest challenges facing PCB designers is not understanding the cost drivers in the PCB manufacturing process. This article is the latest in a series that will discuss these cost drivers (from the PCB manufacturer’s perspective) and the design decisions that will impact product reliability.
The role of PCBs in the manufacture of electrical and electronic equipment cannot be overemphasized. PCBs form the backbone of many modern electromechanical devices. However, despite the advantages offered by PCBs, the main problem associated with their use is the generation of heat.
The base material is an important part of the PCB, which will greatly affect the electrical performance, mechanical performance and reliability of the electronic assembly, so it must be carefully selected.
When we get a PCB board, if there are no other test tools, how to quickly judge the quality of the PCB board?
PCB is not only the most important mechanical support for fixing, linking and assembling various components, components and integrated circuits of an electronic product, but also enables electronic products to have high reliability, good consistency, high mechanical strength,light weight, small size, easy to standardize and other advantages and characteristics of basic components.
The so-called metalized half-hole means that after a drilling (drilling, gong groove) is drilled, and then drilled, the shape process, and finally half of the metalized hole (groove) is retained. In order to control the production of metal half-hole boards, some measures are usually taken due to process problems at the intersection of metalized half-holes and non-metalized holes. In the current saturated state of circuit board proofing factories, there are not many board factories willing and able to produce half-hole boards.
PCB, which simply means Printed circuit board lays a good foundation in modern electronics technology. Its indispensability is seen in its applications for the development of various electronic products. One of such products commonly used nowadays is LED PCB.
A gadgets high-recurrence execution depends vigorously on the electrical properties of the PCB utilized for mounting and associating its circuit parts. The degree of the PCB configuration impact heightens dramatically with an increment in functional recurrence.
PCBA testing mainly includes five forms: ICT testing, FCT testing, Burn In Test, Fatigue Test, and Severe Conditions Test: The ICT (In-Circuit Test) test mainly includes circuit continuity, voltage and current values, fluctuation curves, amplitude, noise, etc., and does not involve function keys or input and output tests.Some like AOI test,X-ray test. PCBA testing image.png For FCT (Functional Test) testing, you need to first burn the prepared microcontroller (MCU) program into the program IC through a burner (such as ST-Link, JTAG) to simulate the function of the entire PCBA board, such as after pressing a button , The LED light is on; press the two buttons at the same time to restore the factory settings and so on. So as to find out the problems in the hardware and software, and equip with necessary patch processing production jigs and test racks.
PCB’s whole name is Printed Circuit Board or PWB(Printed Wire Board),It’s the support of electronic components and the carrier of electrical connection of electronic components.Like below: PCBA’s whole name is Printed Circuit Board Assembly.Like below: PCBA When you need do PCBA,you’d better send gerber data,PCB spec and BOM(Bill of Material:see blow) to factory.