PCB Printed Circuit Boards 2 Layers With Black Mask no silkscreen required
Commodity Introduction
This is a type of 2 layer Double sided PCB board at 1.6mm thick for the application of Isolation
Transformer. The base laminate is from ITEQ Tg135 FR-4, Black solder mask from KUANGSHUN
and no silkscreen on board. It's fabricated per IPC 6012 Class 2 using supplied Gerber data. Each
20 panel boards are packed separately.
Parameter & Data Sheet
| Number of Layers |
2 |
| Board Type |
Double Sided PCB |
| Board Thickness |
1.60 mm +/-0.1 |
| Board Material |
FR-4 |
| Board Material Supplier |
ITEQ |
| Tg Value of Board Material |
135ºC |
| |
| PTH Cu thickness |
≥20 um (See hole wall details) |
| Inner Iayer Cu thicknes |
N/A |
| Surface Cu thickness |
35 um (1oz) |
| |
| Solder Mask Type and Model No. |
LPSM, KSM-6189BK31 |
| Solder Mask Supplier |
KUANG SHUN |
| Solder Mask Colour |
Black |
| Number of Solder Masks |
2 |
| Thickness of Solder Mask |
14um |
| |
| Type of Silkscreen Ink |
NA |
| Supplier of Silkscreen |
NA |
| Color of Silkscreen |
NA |
| Number of Silkscreen |
NA |
| |
| Mininum Trace (mil) |
7.7 mil |
| Minimum Gap(mil) |
6.2 mil |
| |
| Surface Finish |
Immersion Gold |
| RoHS Required |
Yes |
| Warpage |
0.25% |
| |
| Thermal Shock Test |
Pass, 288±5ºC,10 seconds, 3 cycles.
No delamination, no blistering. |
| Solderablity Test |
Pass, 255±5ºC,5 seconds Wetting Area Least 95% |
| Function |
100% Pass electrical test |
| Workmanship |
Compliance with IPC-A-600H & IPC-6012C Class 2 |
Microsection Hole Wall (um)
| Hole Wall Cu Thickness |
≥20 um |
Hole Wall Cu Roughness |
≤25.4 um |
| NO. |
A |
B |
C |
D |
E |
F |
AVE |
| 1 |
26.946 |
25.746 |
25.806 |
27.446 |
26.726 |
26.356 |
26.504 |
| 2 |
25.555 |
24.355 |
24.415 |
26.055 |
25.335 |
24.965 |
25.113 |
| 3 |
26.367 |
25.167 |
25.227 |
26.867 |
26.147 |
25.777 |
25.925 |
Outline dimension Unit: mm
| NO. |
Required Dimension (toerance) |
Actual dimension |
| 1 |
269.70 |
±0.15 |
269.62 |
269.67 |
269.70 |
269.78 |
| 2 |
227.33 |
±0.15 |
227.43 |
227.43 |
227.24 |
227.42 |
Hole Size and Slot Dimension (mm)
| NO. |
Requerment Dimension (tolerance) |
PTH/NPT |
Actual dimension |
| 1 |
1.000 |
±0.076 |
Y |
1.000 |
0.975 |
1.025 |
1.000 |
| 2 |
0.800 |
±0.076 |
Y |
0.800 |
0.775 |
0.825 |
0.800 |
Mass production capability
The manufacturing facilities are independent industrial plant. There're 16000 square meters
workshop area. And the brand new automatic equipment was introduced from Israel, Germany,
Japan and Taiwan area. As of now the manufacturing capability for 2-12 layer PCBs covers 300
thousand square feet per month. 7000-8000 types of different PCBs are shipped to worldwide
each month.
PRODUCTS & SERVICES
a) FR-4 TG>135, High TG>170, High CTI>600V
b) RO4350B, RO4003C, F4B microwave material
c) Aluminum based PCB, 1W/MK-3W/MK material
d) Layer Count up to 32 layers
e) Heavy Copper
f) Hybrid Material Multilayer PCB
g) Impedance Controlled PCB
h) HASL Lead free, Electroless Nickle Immersion Gold (ENIG), Immersion Silver, Immersion Tin,
OSP
i) Colour of Solder mask: Green, Blue, Yellow, Black, Red and it's relative Matt color
j) Special holes: blind via, countersink hole, castellation hole, press-fit hole
k) Quick turn-around (QTA) Delivery
l) Minimum Order Quantity (MOQ) 1 pcs
m) Door to Door shipment service
SERVICE AREA
North America, Oceania, Southeast Asia, Eastern Europe, Africa, Latin America, Western &
Southern Europe, Northern Europe, Central & South Asian, Middle East.
Audited Supplier 
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