ISO9001 SMD ICs PCB Assembly Service Rogers 4350 Prototyping Multilayer Board

ISO9001 SMD ICs PCB Assembly Service Rogers 4350 Prototyping Multilayer Board

PCB inspection method

PCB inspection methods include appearance optical inspection and electrical path test
AOI (Auto Optical Inspection):
It is the automatic optical recognition system. Based on the consideration of production efficiency and inspection accuracy, the use of optical identification instruments to replace manual visual inspection (Visual Inspection) is already a very basic process. The principle of AOI is to first save the standard image file in the device, use the image file to perform optical comparison with the measured object, and automatically determine whether the error of the measured object exceeds the standard. Scrap or repair. Since the circuits on the circuit boards are getting more and more fine, it has already exceeded the limit that can be found by the human eye. Therefore, the AOI equipment of the PCB assembly service is mostly used to check and compare the circuit layers, and compare whether there is too much or too little etching or damage such as collisions. .

Lamination in PCB assembly

  INATIONMulti-layer printed circuit boards have trace layers inside the board. This is achieved by laminating a stack of materials in a press by applying pressure and heat for a period of time. This results in an inseparable one piece product. For example, a four-layer PCB can be fabricated by starting from a two-sided copper-clad laminate, etch the circuitry on both sides, then laminate to the top and bottom pre-preg and copper foil. It is then drilled, plated, and etched again to get traces on top and bottom layers.

  The inner layers are given a complete machine inspection before lamination because mistakes cannot be corrected afterwards. Automatic optical inspection (AOI) machines compare an image of the board with the digital image generated from the original design data. Automated Optical Shaping (AOS) machines can then add missing copper or remove excess copper using a laser, reducing the number of PCBs that have to be discarded. PCB tracks can have a width of just 10 micrometers.

Lighting application

The printed circuit board provides a universal base for a variety of high output LED applications. LED lighting solutions are rapidly evolving across industries where low power consumption, high efficiency and impressive light output are important. These LEDs gain more functionality when integrated with the PCB. PCBs facilitate expanded usage of LED lighting solutions, especially including displays and indicators.
Some of the most common applications for PCB LEDs within the lighting industry include the following:
1. Telecom Industry: Telecom equipment often uses PCB assembly service to control its LED indicators and displays. In this industry, lightweight and durable PCBs tend to be advantageous, mainly because of the mechanical density in the industry. Aluminum PCBs are often used in telecom lighting applications due to their better heat transfer properties than FR4 variants.
2. Automotive industry: PCB LED displays are commonly found in the automotive industry, especially dashboard indicators, headlights, brake lights and advanced panel displays. The industry particularly favors PCB assembly service LEDs due to their low manufacturing costs and impressive durability, which increases the value and lifespan of vehicles.
3. Computer Technology Industry: PCB-based LEDs are becoming more common in the computer technology industry, commonly found in desktop and laptop monitors and indicators. Due to the thermal sensitivity of computer technology, aluminum-based PCBs are particularly suitable for LED lighting applications within computers.

Specification 

Welcome to Chengdu Cesgate Technology Co., Ltd

We can provide one-stop service:

PCB circuit boards+Assembly
E-test.
Electronic components purchasing.
PCB assembly service: available on SMT, BGA, DIP.
PCBA function test.
Enclosure assembly.

FAQ