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Custom high precision electronic SMT PCB assembly service

Custom high precision electronic SMT

Standard printed circuit board 

Here at CTT, standard PCB service is one-stop services for full-featured printed circuit board manufacturing. With more than 18 years of  experience, we have processed hundreds of thousands of PCB projects and covered almost all types of substrate materials, including FR4, aluminum, Rogers, ceramic plates, and more. This page only covers standard FR4 based PCB.

There are a lot of PCB manufacturers in China. You may receive a lot of different quotes for a same PCB Gerber file. For each manufacturer, processes, materials, services, etc bring them different costs. Our customers are from all over the world. We are the auto gate , controller PCB manufacturer, robot PCB manufacturer, motherboard PCB factory, refrigerator PCB, air condition PCB, etc. During our promotion, CTT can also be your “Free shipping pcb manufacturer”. Be a “Cheap and fast PCB maker” is also our goal. We do everything we can to satisfy customers from product to service.

 

Why can CTT can be here for 18 years? What are the advantages of CTT's PCB production? The main reasons are as follow:

 

Check out our standard  capabilities in the following table:

 

Feature

Capability

Quality   Grade

Standard IPC 2

Number   of Layers

1 - 48 layers

Delivery   Time

2 days - 5 weeks (Expedited Service)

Materials

FR-4, MCPCB, copper PCB、ROGERS、ARLON、Teflon、Composite PCB

Board   Size

Max 500*600mm

Board   Thickness

 

Copper   Weight

 

Inner   Layer Copper Weight

 

Min   Tracing/Spacing

3mil/3mil

Solder   Mask Color

Green, White, Blue, Black, Red, Yellow

Silkscreen   Color

White, Blue, Black, Red, Yellow

Surface Finish

HASL - Hot Air Solder Leveling 

Lead Free HASL - RoHS 

ENIG - Electroless   Nickle/Immersion Gold - RoHS 

ENEPIG -   Electroless Nickel Electroless Palladium Immersion Gold - RoHS 

Immersion Silver - RoHS 

Immersion Tin - RoHS 

OSP -Organic Solderability   Preservatives - RoHS

Min   Annular Ring

3mil

Min   Drilling Hole Diameter

6mil, 4mil-laser drill

Min   Width of Slot Hole (PTH)

 

PTH   Hole Size Tolerance

±.003" (±0.08mm) - ±4mil

SM   Tolerance (LPI)

±.003" (0.075mm)

Test

E test, flying probe or testing fixture

Impedance   tolerance

±5% - ±10%

SMD   Pitch

 

BGA   Pitch

 

Chamfer   of Gold Fingers

20, 30, 45, 60

Other Techniques

Gold fingers 

Blind and Buried Holes 

peelable solder mask 

Edge plating 



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