Chengdu Cesgate Technology Co., Ltd |
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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
NO. | Items | Capabilities |
1 | Layers | 2-68L |
2 | Maximum machining size | 600mm*1200mm |
3 | Board thickness | 0.2mm-6.5mm |
4 | Copper thickness | 0.5oz-28oz |
5 | Min trace/space | 2.0mil/2.0mil |
6 | Minimum finished aperture | 0. 10mm |
7 | Maximum thickness to diameter ratio | 15:1 |
8 | Via treatment | Via, blind&buried via, via in pad, Copper in via … |
9 | Surface finish/treatment | HASL/HASL lead free, Chemical tin, Chemical Gold, Immersion gold Inmersion Silver/Gold, Osp, Gold Plating |
10 | Base Material | FR408 FR408HR, PCL-370HR;IT180A, Megtron 6(Panasonic);Rogers4350, Rogers4003, RO3003, Rogers/Taconic/Arlon/Nelco laminate with FR-4 material(including partial Ro4350B hybrid laminating with FR-4) |
11 | Solder mask color | Green.Black.Red.Yellow.White.Blue.Purple.Matte Green. Matte Black |
12 | Testing Service | AOI, X-Ray, Flying-Probe, Function Test, First Article Tester |
13 | Profiling Punching | Routing,V-CUT,Beveling |
14 | Bow&twist | ≤0.5% |
15 | HDI type | 1+n+1,2+n+2,3+n+3 |
16 | Min mechanical aperture | 0.1mm |
17 | Min laser aperture | 0.075mm |
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
Q. What file formats do you accept for production? |
Q: Are my files safe? |
Q: Can we inspect quality during production? CESGATE: Yes, we are open and transparent on each production process with nothing to hide. We welcome customer inspect our production process and check in house. |
Q: Popular field? CESGATE: Semiconductor, Smart Home, Medical Products, Smart Wearable, Industrial Control, IOT etc. |