4 layer FR4 with immersion tin finish
Chinese PCB manufacturer with better quality,lower price,quick delivery and good logistic service,welcome to send us RFQ!
Q1:What's your Aluminum board Thermal Conductivity?
A: Normally 0.8-3W/m.K. If you have special demands(such as COB) please feel free contact us
Q2:Is my PCB file safe if I send it to you for manufacturing?
A: We respect customer's design authority and will never manufacture PCB for someone else without your permission. NDA is acceptable.
Q3:What is your testing policy and how you control the quality?
A: For sample, usually tested by flying probe; for PCB Volume over 3 square meters, usually tested by fixture, this will be more faster. Due to there's many steps to PCB production, we usually do inspection after every step.
Q4: What's your shipping way ?
A: 1. We have our own forwarder to ship goods by DHL, UPS, FEDEX, TNT,EMS.
2. If you have your own forwarder, we can cooperate with them.
Q5: What is your certificate?
A: ISO9001:2015, ISO14001: 2015, UL, SGS,RoHS report.
Q6: What files should we offer?
A: If only need PCB, please provide Gerber File and manufacturing specifications; If need PCBA,Please provide Gerber File, Manufacturing specification, BOM list and Pick & Place/XY file.
Q7: Can I get a sample?
A: Yes, It's reasonable to get a sample to test our quality at first.
Q8: Does ABIS CIRCUITS bevel gold fingers?
A: Yes. A standard 45-degree bevel, also bevel at 15 or 30 degrees upon request. For multi-layer board, please ensure there is adequate back set for the bevels.
|Number of Layers||From 4-layer to 22- Layer|
|HAL Lead Free|
|Hot Air Solder Leveling(HASL)|
|Entek Coating (OSP)|
|Other printing||Gold Finger|
|Carbon Print, Peelable Mask|
|Solder Mask Plugged Hole|
|Copper thickness||1/ 2 oz (18 μm) - 4 oz (140 μm)|
|Min. Finished Hole Size||0.2mm(8mil)|
|Hole Size Tolerance (PTH)||+/ -0.076mm (3 mil)|
|Hole Size Tolerance (NPTH)||+/-0.05mm (2 mil)|
|Min. Line Width and Spacing||0.1mm (4 mil)|
|Min. Solder Mask Clearance||0.05mm (2 mil)|
|Min. Annular Ring||0.076mm (3mil)|
|Profile and V-Cut||CNC-Routing, Stamping and Beveling,V-CUT,CNC|
|Special Process||Micro-section, Chamfer for Gold Finger|
|File format||Gerber file , CAM350 ,Protel,PowerPCB|
|E-TEST||Flying Prob , E-test ,Fixture|
|Other Test||Impedance , Slice up|
|Warp & Twist||≤0.7%|