Shanghai Yunbao Trading Co. Ltd.
Shanghai Yunbao Trading Co. Ltd.
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Custom design pcb clone small electronics printed circuit boards
Our One-Stop Service for PCB & PCB Assembly manufacturing:
1. Quick Quotation - Competitive factory direct price is always offered
2. Free Sample - Sample for free before mass production
3. Quality Control - Complete test procedure is necessary
4. On Time Delivery - Customize the logistics plan according to customer's requirement
5. After-sale Service - Reply to the claim within 24 hours to make sure our customer's manufacturing
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Factory & Equipments
How to get quick quotation?
Step 1. Please send us Gerber file with these format: .CAD/ .Gerber/ .PCB / .DXP/ .P-CAD, etc;
Step 2. Also please provide us the below details for quick quotation:
a) Board material: Fr-4/ CEM-1/ CEM-3/ SY/ KB/ Rogers/High Tg/ copper based/ aluminum based, etc;
b) Board thickness: 0.1-6.0mm;
c) Copper thickness: 0.05 Oz-8Oz (17um-288um)
d) Surface Treatment: OSP/ ENIG/ HASL/ Lead Free HASL/ Immersion Tin/ Immersion Sin
e) Color of solder mask and silk print: Green/ red/ blue/ black/ white/ yellow
f) Board size and quantity
g) BOM(Bill of Materials) list if PCB Assembly
P.S. If you don't have Gerber file, please provide us the imfomation as step 2 or send your PCB Board to us for clone.
FAQ (Frequently Asked Questions):
Q: Why we can trust your products?
A: What LEFANG's vision is to Make Our Customer's Products Better, so we try our best to fulfill the quality control system andenvironmental management system. Our approved certification including ISO9001:2008, ISO14001:2004, ISO/TS16949:2009, OHSAS18000, UL, RoHS, QC080000, CQC.
Q: What's your Lead Time?
A: The below lead time for your reference:
|
Layer count |
Sample lead time/workday |
Batch lead time/workday |
|
1-2L |
2 |
6 |
|
4L |
5 |
8 |
|
6L |
5 |
9 |
|
8L |
6 |
10 |
|
10L |
8 |
10 |
|
12L |
8 |
12 |
|
14L |
10 |
15 |
|
16L |
10 |
18 |
|
18-40L |
Up to difficulty, at least 18 for sample, 24 for batch |
|
|
HDI, Blind/Buried Hole PCB |
Regular Lead Time + 3 workdays |
|
Q: What's your Technical Capabilities?
A: To pursue the zero technical issue, we have employed 70 professional engineers to ensure our high quality products. And our technical capacities are as below:
|
Item |
Details |
|
Max layer count |
20L |
|
Max board thickness |
6.0mm |
|
Max aspect ratio |
10:1 |
|
Max copper thickness |
6OZ |
|
Max dimension |
600x700mm |
|
Min thickness of 4 layers PCB |
0.4mm |
|
Min hole/ pad |
0.15/0.35mm |
|
Hole location accuracy |
+/-0.05mm |
|
PTH hole tolerance |
+/-0.05mm |
|
Min line width and line space |
0.065/0.065mm |
|
Surface treatment |
HASL/HASL lead free, OSP, Immersion gold/silver/tin, gold plating (hard gold and soft gold), silver plating, tin plating, platinum plating, carbon ink, and ENEPIG(electroless nickel - electroless palladium - immersion gold) |
Q: What kinds of test function will be offered?
A: To make sure the production quality, we offer the below testing procedure to guarantee every piece of product:
1) AOI (Automated Optical Inspection)
2) Automatic short-circuit testing
3) RoHS detector
4) Dielectric tester
5) Impedance control
6) Metallographic microscope
7) Fly probe/ fixture mold
8) Visual inspection
Q: What kinds of quality Raw Materials will be used?
A: We use top raw materials as below, ensuring product quality from the source.
Board Brand: ITEQ, SY,KB, Isola, Rogers, Arlon, Nelco, Taconic, Hitachi, etc
Potion: Rohm&Haas, Atotech, Umicore
Printing Ink: Taiyo, Rongda
Dry Film: Asahi, Dupont, Etertec
Q: Can we have a factory tour?
A: Welcome to visit our factory in Guangdong! Please inform us at least a week in advance, so that we could arrange the schedule for you.
Q: How to get the free sample?
A: Please send us the Gerber file and the necessary data information for PCB prototype. Once you make an mass order, the sample fee will be deducted from the total balance.
Q: Could we choose the shipment way we prefect?
A: Sure you can. We have long-term cooperation with DHL, FEDEX, TNT and UPS. If some specific request, please let us know.