Ultathin PCB 4-Layer Thin PCB 0.4mm Multilayer FR-4 PCB With Immersion Gold for GPS Module
1.1 General description
This is a type of 4 layer printed circuit board built on FR-4 substrate with Tg 135°C for the application of GPS Module. It's only 0.4 mm thick with white silkscreen(Kuangshun) on green solder mask (Kuangshun) and immersion gold on pads. The base material is from Taiwan ITEQ supplying single PCB per panel. They're fabricated per IPC 6012 Class 2 using supplied Gerber data. Each 50 boards are packed for shipment.
1.2 Features and benifits
It's suitable for handheld and consumer applications.
Long storage time ( It can be stored for more than 1 year in vacuum bag)
PCB manufacturing on required specifications.
Products and Manufacturing are certified by authorized organizations.
UL recognized and RoHS Directive-compliant
Quick turn-around samples
1.3 Applications
Satellite Broadband
Tracking Devices For Vehicles
Industrial controls
1.4 Parameter and data sheet
Item | Requirement | Result |
Basic information | Board type | Multilayer PCB | Multilayer PCB |
Layer count | 4 layers | 4 layers |
Board size | 117 x 121mm=1UP | 117 x 121mm=1UP |
Laminate | Type | FR-4 | FR-4 |
Supplier | ITEQ | ITEQ |
Board thickness | 0.4+/-10%mm | 0.45mm |
Outer copper foil | >=35 um | 36.1 |
Inner copper foil | 17um | 17um |
Warp-twist | <= 0.75% | 0.06% |
Legend | Type | KUANG SHUN | KUANG SHUN |
Color | White | White |
Location | CS | CS |
Marking | Co.logo | As requirement | OK |
UL.logo | As requirement | OK |
Date code | As requirement | OK |
Marking form | As requirement | OK |
Location | NA | |
Min line width (mil) | 7.8 | 7.6 |
Min line spacing (mil) | 5.5 | 5.7 |
Min ring width (mil) | NA | NA |
Solder Mask | Type | KUANG SHUN | KUANG SHUN |
Color | Green | Green |
Thickness | >=10 um | 13 um |
Pencil Test | 6H OR ABOVE | OK |
SOLVENT TEST | NO ATTACK | OK |
TAPE TEST | NO PEEL OFF | OK |
Surface Treament | ENIG | OK |
Special Treament | Silk screen | / | / |
Location | / | / |
Forming | V-cut | OK |
Normal Testing | Electrical test | 100% PCB passed | OK |
Visual inspection | IPC-A-600H&IPC-6012C | OK |
Solderability Test | 245℃ 5S 1 Cycle | OK |
Drill table (mm) | 1 | Y | 0.300 |
2 | N | 1.000 |
3 | N | 3.100 |

