SMD ICs Custom PCB Prototype Service Rogers Fr4 Rapid Prototyping Circuit Board
PCB Surface Treatment
Since the copper surface of the turnkey PCB assembly is easily oxidized in the environment, it must be reprocessed and covered with a layer of coating on the exposed area that is not covered with solder mask ink to protect the process from oxidation. In response to various subsequent processing needs, various surface treatment processing methods with different materials, prices and different degrees of protection have been developed.
Common turnkey PCB assembly surface treatments include the following:
Bare copper plate, spray tin plate, lead-free spray tin plate, chemical gold plate, electroplating gold, chemical silver plate, OSP plate.
PCB Process - Introduction to HDI
HDI (High Density Interconnect): High-density interconnection technology, mainly using micro-blind / buried vias (blind / buried vias), a technology that makes PCB circuit board circuit distribution density higher. The advantage is that it can greatly increase the usable area of the Turnkey PCB prototype service, making the product as miniaturized as possible. However, due to the increase in line distribution density, it is impossible to use traditional drilling methods to drill through holes, and some of the via holes must be drilled with laser drilling to form blind holes, or cooperate with inner-layer buried vias to interconnect.
Generally, the diameter of the laser drilling hole is designed to be 3 ~ 4 mil (about 0.076 ~ 0.1 mm), and the insulation thickness between each laser drilling layer is about 3 mil. Due to the use of laser drilling many times, the key to the quality of the Turnkey PCB Assembly is the hole pattern after laser drilling and whether the hole can be evenly filled after the subsequent electroplating and filling.
PCB Prototype Service Capacities and Technical 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 |
Why choose CESGATE?
CESGATE is a team with more than 10 years experience in the field. We owns abundant experiences for serving overseas customers from industrial automatic control, communication, medical, Auto and consumer electronics,etc. We test our product strictly to guarantee the quality to our customers. We accumulate high reputation during our cooperation.You will achieve following value-added services when you cooperate with us:
One-stop PCB/PCBA Service
Optimizing your PCB design during production
Satisfied quality with competitive prices
Instant response in both quotation and delivery
Increase your business with our powerful support
FAQ
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: What is your inspection policy? How do you control the quality?
CESGATE: In order to ensure the quality of PCB products, flying probe inspection is usually used; electrical fixtures, automatic optical inspection (AOI), BGA parts x-ray inspection, first article inspection ( FAI) etc. |
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: What are the main products of your PCB/PCBA services?
CESGATE: Our PCB/PCBA services are mainly for the industries including Medical, Automotive, Energy, Metering/Measurements, Consumer Electronics. |
Q: Popular field?
CESGATE: Semiconductor, Smart Home, Medical Products, Smart Wearable, Industrial Control, IOT etc. |
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