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Pcba maker fr4 94v0 pcb
Specification:
| Aticle | Description | Capability |
| Material | Laminate material | FR4, Alu, CEM3,Taconic,Rogers |
| Board cutting | Number of layers | 1-58 |
Min.Thickness for inner layers (Cu thickness are excluded) | 0.003"（0.07mm） | |
| Board thickness | Standard | 0.04-0.16''±10%（0.1-4mm±10%） |
| Min | Single/Double layer:0.008±0.004'' | |
| Bow and twist | <7/1000 | |
| Copper weight | outer Cu weight | 0.5-4 oz |
| inner Cu weight | 0.5-3 oz | |
| 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) | |
| Plating | Min hole size | 0.0008''（0.02mm） |
| Aspect ratio | 20(5 :1) | |
| Solder mask | Color | Green,white,black,red,yellow,blue |
| Min solder mask clearance | 0.003''(0.07mm) | |
| Thickness | 0.0005-0.0007''(0.012-0.017mm) | |
| Silkscreen | Color | Green,white,black,red,blue.... |
| Min size | 0.006''(0.15mm) | |
| E-test | Flying probe tester | Y |
| Controlled Impedance | Tolerance | ±10% |
| Impedance tester | Tektronix TDS8200 | |
| Surface finish | HASL,ENIG,immersion silver，immersion tin, OSP.... | |
Description:
Fr-4, also known as FR-4 or FR4, represents a flame retardant, and four represent a class of materials used. Fr-4 is both a name and a rating. It is used as a name when manufacturing PCB and fiberglass reinforced epoxy laminates. As a rating, Fr-4 is used for the classification of epoxy laminates as an indicator of its quality.
If you work with FR4 2 Layer PCB For Power Bank often, you are probably familiar with Fr-4 materials. It is a popular PCB base material because it is the main component used to make rigid boards.
The Fr-4 material is a structure mainly composed of glass fibers woven into a thin sheet of cloth. Glass fiber makes Fr-4 a solid foundation for the manufacture of rigid boards. It is enclosed in refractory epoxy and is a source of rigidity.
Features:
One of the other reasons why Fr-4 is popular is due to the low cost and versatility of its materials. The FR-4 board has a large dielectric strength as an electrical insulator. In addition, they are lightweight, water and heat resistant, and in short, it is a material suitable for various environmental conditions.