Via Filled PCB Via in Pad Circuit Board 0.6mm Multilayer PCB Built On 6 Layer With Blind Via for GPS Tracking
(Printed circuits boards are custom-made products, the picture and parameters shown are just for reference)

1.1 General description
This is a type of 6 layer ultrathin printed circuit board built on FR-4 substrate with Tg 135°C for the application of GPS Tracking. It's only 0.6 mm thick without silkscreen on green solder mask (Taiyo) and immersion gold on pads. The base material is from Taiwan ITEQ supplying 1 up PCB per panel. Vias with 0.25mm are resin filled and capped (via in pad). They're fabricated per IPC 6012 Class 2 using supplied Gerber data. Each 50 panels are packed for shipment.

1.2 Features and benefits
1. Via in pad design reduced the inductive reactance and capacitive reactance of the transmission line;
2. Immersion gold finish has high solderability, no stressing of circuit boards and less contamination of PCB surface;
3. Products and manufacturing are certified by authorized organizations;
4. Eligible products rate of first production: >95%;
5. Prototype PCB capability to volume production capability;
6. Delivery on time: >98%;
7. More than 18+ years of PCB experience;
8. IPC Class 2 / IPC Class 3;



1.3 Applications
Led Lighting
Intercom System
Portable WiFi Router
GSM Tracker
Commercial Led Lighting
Modem WiFi 4G
Honeywell Access Control
Electronic Access Control
Audio Frequency Amplifier
File servers

1.4 PCB Specifications

1.5 via in pad (VIP)
At present, the circuit board is becoming more and more dense and interconnected, and there is no more room for these wires and pads connecting the holes. Therefore, so in this context, the process of punching the holes on the pads arises at the historic moment. In brief, the via holes which have been plated through are plugged or filled by insulating resin through the method of screen leakage, and then drying, grinding, and then electroplating, so that the whole surface of the PCB is coated with copper, and no longer via holes can be seen.

The effect of via in pad is also very obvious: such as improved the electrical performance and reliability of electronic products, shorten the signal transmission wire, reduced the inductive reactance and capacitive reactance of the transmission line, and reduced internal and external electromagnetic interference.

Let’s see the basic process of via in pad.