Comparison Between PCB Prototyping Service and Standard PCB Fabrication Service
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Update time : 2017-10-24 18:01:00
Comparison Between PCB Prototyping Service and Standard PCB Fabrication Service
Item | PCB Prototype | Standard PCB |
Application scope | Design review, prototype to quality testing | Full production |
Quality Class Standards | IPC1 | IPC2 |
Bonus service | / | Free DFM checking |
Number of Layers | 1 - 8layers | 1 - 32layers |
Order Quantity | 5pcs - 100pcs | 1pc - 10000+pcs |
Build Time | 2days - 7days | 3days - 18days |
Material | FR4 | FR4, Aluminum, Flex,Roges, etc |
Board Size | Min 10mm x 10mm Max 500mm x 500mm | Min 6mm x 6mm Max 600mm x 700mm |
Board Thickness | 0.4mm - 2.0mm | 0.4mm - 3.2mm |
Copper Weight (Finished) | 1.0oz - 2.0oz | 0.5oz - 6.0oz |
Min Tracing/Spacing | 5mil/5mil | 3mil/3mil |
Min Annular Ring | 5mil | 3mil |
Min Drilling Hole Diameter | 8mil | 6mil, 4mil - laser drill |
Min Spacing Trace to Pad | 5.5mil | 4mil |
Min Spacing Trace to Copper | 6mil | 6mil |
Soldermask Sides | As per the file | As per the file |
Soldermask Color | Green, White, Blue, Black, Red, Yellow | LPI, Green, White, Blue, Black, Red, Yellow |
Silkscreen Sides | As per the file | As per the file |
Silkscreen Color | White, Black | White, Blue, Black, Red, Yellow |
Surface Finish | HASL ENIG - Electroless Nickle/Immersion Gold - RoHS | HASL 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 |
PCB thickness tolerance | ±0.1mm - ±10% | ±0.1mm - ±10% |
PCB size tolerance | ±0.1mm - ±0.3mm | ±0.1mm - ±0.3mm |
PTH hole size tolerance | ±0.08mm - ±0.15mm | ±0.08mm - ±0.15mm |
Impedance control | / | ±5% - ±10% |
Gold fingers | / | Yes, chamfer at 20, 30, 45, 60 |
UL marking/Date code marking | / | Yes |
Buried/Blind vias | / | Yes |
Peelable solder mask | / | Yes |
Edge plating | / | Yes |
Carbon Mask | / | Yes |
Kapton tape | / | Yes |
Countersink/counterbore hole | / | Yes |
Half-cutted/Castellated hole | / | Yes |
Press fit hole | / | Yes |
Via in pad | / | Yes |
V-scoring limitation | 60*60mm | 25*25mm |
Solder-stop coating bridge | / | Yes |
There are different Quality Class Standards in the industry. Most commonly followed is class 1 & 2.
Class 1 is for General Electronic Products and for testing and verification of Designs.
Class 2 is for Dedicated Service Electronic Products such as communication equipment,sophisticated business machines, instruments where high performance and extended life is required and for which uninterrupted service is desired.
Class 3 products are used in certain types of medical, aeronautics, and military applications for which uninterrupted and high reliability service is required.
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Class 3 products are used in certain types of medical, aeronautics, and military applications for which uninterrupted and high reliability service is required.
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