Item	RIGID	FLEX	RIGID-FLEX
Max Layer	60L	8L	36L
Inner Layer Min Trace/Space	3/3mil	3/3mil	3/3mil
Out Layer Min Trace/Space	3/3mil	3.5/4mil	3.5/4mil
Inner Layer Max Copper	6oz	2oz	6oz
Out Layer Max Copper	6oz	2oz	3oz
Min Mechanical Drilling	0.15mm	0.1mm	0.15mm
Min Laser Drilling	0.1mm	0.1mm	0.1mm
Aspect Ratio(Mechanical Drilling)	20:1	10:1	12:1
Aspect Ratio(Laser Drilling)	1:1	/	1:1
Press Fit Hole Ttolerance	±0.05mm	±0.05mm	±0.05mm
PTH Tolerance	±0.075mm	±0.075mm	±0.075mm
NPTH Tolerance	±0.05mm	±0.05mm	±0.05mm
Countersink Tolerance	±0.15mm	±0.15mm	±0.15mm
Board Thickness	0.4-8mm	0.1-0.5mm	0.4-3mm
Board Thickness Tolerance(<1.0mm)	±0.1mm	±0.05mm	±0.1mm
Board Thickness Tolerance(≥1.0mm)	±10%	/	±10%
Impedance Tolerance	Single-Ended:±5Ω(≤50Ω),±7%(>50Ω)	Single-Ended:±5Ω(≤50Ω),±10%(>50Ω)	Single-Ended:±5Ω(≤50Ω),±10%(>50Ω)
	Differential:±5Ω(≤50Ω),±7%(>50Ω)	Differential:±5Ω(≤50Ω),±10%(>50Ω)	Differential:±5Ω(≤50Ω),±10%(>50Ω)
Min Board Size	10*10mm	5*10mm	10*10mm
Max Board Size	22.5*30inch	9*14inch	22.5*30inch
Contour Tolerance	±0.1mm	±0.05mm	±0.1mm
Min BGA	7mil	7mil	7mil
Min SMT	7*10mil	7*10mil	7*10mil
Surface Treatment	ENIG,Gold Finger,Immersion Silver,Immersion Tin,HASL(LF),OSP,ENEPIG,Flash Gold;Hard gold plating	ENIG,Gold Finger,Immersion Silver,Immersion Tin,HASL(LF),OSP,ENEPIG,Flash Gold;Hard gold plating	ENIG,Gold Finger,Immersion Silver,Immersion Tin,HASL(LF),OSP,ENEPIG,Flash Gold;Hard gold plating
Solder Mask	Green,Black,Blue,Red,Matt Green	Green Solder Mask/Black PI/Yellow PI	Green,Black,Blue,Red,Matt Green
Min Solder Mask Clearance	1.5mil	3mil	1.5mil
Min Solder Mask Dam	3mil	8mil	3mil
Legend	White,Black,Red,Yellow	White,Black,Red,Yellow	White,Black,Red,Yellow
Min Legend Width/Height	4/23mil	4/23mil	4/23mil
Strain Fillet Width	/	1.5±0.5mm	1.5±0.5mm
Bow & Twist	0.3%	/	0.05%

                      TOPFAST(Unice Group) is a professional and reliable one-stop PCB solutions provider for customers specialized in manufacturing quick turn prototypes and small volumes.Topfast is responsible for overseas business development.With high quality and on-time delivery products we won the market's wide acclaim. We will continue to focus on customer satisfaction, along with "high quality "and "fast delivery", we will  become a PCB service provider worthy of customer trust. 

                       Our products include HDI board, Fast PCB  board, RF PCB board, PCBA, high frequency board ,high speed board and rigid-flex board, etc., to meet customers' various demand. Our products are widely used in communication, medical equipment, industrial control, power supply, consumer electronics and aerospace, automobile industry,etc.All our products follow IPC class and are approved by UL, ROHS and ISO9001. Also our executives and technicians are experienced people who have been engaged in PCB industry for more than twenty years so we have rich production management experience and professional PCB skills. We ensure the quality of PCB products by continuously introducing new equipment's and new technologies and using high quality materials .With professional technicians we can provide early design consultation and technical support, so that customers can be more worry-free. With qualified and reliable products, advanced technology and value-added service, we won the trusts and supports of customers and established a good reputation in the industry.

                       Our goal is to be the leading PCB solutions provider in the electronics industry with first-class products and services. We are devoted to be a trusted partner of our customers.                                                                     

Q1:What kind of PCB file format can you accept for production?
Gerber, PROTEL 99SE, PROTEL DXP, CAM350, ODB+(.TGZ)

Q2:Is my PCB files safe when I submit them to you for manufacturing?
We respect customer's copyright and will never manufacture PCB for someone else with your files unless we receive written permission from you,      nor we'll share these files with any other 3rd parties.

Q3:What payments do you accept ?
-Wire Transfer(T/T),Western Union,Letter of Credit(L/C)
-Paypal,AliPay,Credit Card

Q4:How to get the PCBs?
A:For small packages, we will ship the boards to you by DHL,UPS,FedEx,EMS. Door to door service! You will get your PCBs at your home.
B:For heavy goods more than 300kg, we may ship your boards by ship or by air to save freight cost. Of course, if you have your own forwarder,        we may contact them for dealing with your shipment.

Q5:What is your minimum order quantity?
Our MOQ is 1 PCS.

Q6: Can we visit your company?
No problem. You are welcome to visit us in Shenzhen. Or the other factory is in GuangDong province.

Q7: How can you ensure the quality of the PCBs?
Our PCBs are 100% test including Flying Probe Test, E-test and AOI.