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[China]
Trade Verify
Address: 3602, Unit 1, Building 2, Phase 3, Longhu Zichen Xiangsong, Huazhaobi Xiaheng Street, Jinniu District, Chengdu, China
Contact name:Sia Li
Chengdu Cesgate Technology Co., Ltd |
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Verified Suppliers
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Circuit Board Assembly Companies Manufacturers Turnkey PCB Assembly
Types of PCB structures:
The printed circuit board (PCB) structure can be divided into the
following three types
Single-Layer PCB: Only one side of the circuit board has copper
foil conductors, and the other side has no copper foil conductors
at all. The circuits of early electronic products were simple, only
one side was needed for connection and conduction, and parts could
be placed on the other side without copper foil.
Double-Layer PCB: There are copper foil conductors on both sides of
the circuit board, and the paths on the front (Top layer) and the
back (Bottom layer) can be connected to each other through vias.
Since both sides can be wired, the usable area is twice that of a
single panel, which is more suitable for products with complex
circuits. The design is to place the part on the front, and the
back is the welding surface of the part foot.
Multi-Layer PCB: Multi-Layer PCB is made of multiple etched
double-sided boards, an insulating layer (Prepreg) is stacked
between the boards, and copper foil is laid on both sides of the
outermost layer and then pressed together. Since multiple
double-sided laminates are used, the number of layers is usually an
even number. The copper foil layer that is pressed inside can be a
conduction layer, a signal layer, a power layer or a ground layer.
The multi-layer board can theoretically reach more than 50 layers,
but the practical application surface is currently up to about 30
layers.
CESGATE's advantages of turnkey PCB assembly
1. As a one-stop service shop, thoughtful Turnkey PCB Assembly will
start from your inquiry to after-sales.
2. Free design stack-up service, modify until you are satisfied.
3. Each process is monitored by specialized quality inspection
personnel to detect problems in time and solve them as soon as
possible.
4. Expedited service is supported.
5. Turnkey PCB Assembly
Specification
| Article | Description | Capability |
| Material | Laminate materials | FR4, High TG FR4, High Frequency, Alum, FPC... |
| Board Cutting | Number of layers | 1-48 |
| Min.thickness for inner layers (Cu thickness are excluded) | 0.003”(0.07mm) | |
| Board Thickness | Standard | (0.1-4mm±10%) |
| Min. | Single/Double:0.008±0.004” | |
| 4layer:0.01±0.008” | ||
| 8layer:0.01±0.008” | ||
| Bow and twist | no more than 7/1000 | |
| Copper Weight | Outer Cu weight | 0.5-4 0z |
| Inner Cu weight | 0.5-3 0z | |
| Drilling | Min size | 0.0078”(0.2mm) |
| Drill deviation | ±0.002″(0.05mm) | |
| PTH hole tolerance | ±0.002″(0.005mm) | |
| NPTH hole tolerance | ±0.002″(0.005mm) | |
| Solder Mask | Color | Green,white,black,red,blue… |
| Min solder mask clearanace | 0.003″(0.07mm) | |
| Thickness | (0.012*0.017mm) | |
| Silkscreen | Color | white,black,yellow,blue… |
| Min size | 0.006″(0.15mm) | |
| Max Size of Finish Board | 700*460mm | |
| Surface Finish | HASL,ENIG,immersion silver,immersion tin,OSP… | |
| PCB Outline | Square,circle,irregular(with jigs) | |
| Package | QFN,BGA,SSOP,PLCC,LGA | |
RFQ:
| Q: MOQ? CESGATE: There is no MOQ in POE. We are able to flexibly handle small and large batches. |
| Q: Do you have any other services? CESGATE: We mainly focus on the procurement services of PCB + assembly + components. In addition, we can also provide programming, testing, cable, housing assembly services. |
| 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: What service do you have? CESGATE: We provide turnkey solution including RD, PCB fabrication, SMT, final assembly,testing and other value-added service. |
| 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: Is CESGATE a factory or trade company? CESGATE: CESGATE is a factory with PCB factory located in Senzhen and SMT assembly factories in both Shenzhen and Chengdu. |
FAQ
