China Wholesale Circuit Board Makers Manufacturers - 4 Layer Rogers ENIG PCB 25770 – Huihe
China Wholesale Circuit Board Makers Manufacturers - 4 Layer Rogers ENIG PCB 25770 – Huihe Detail:
Transmission line form in high frequency PCB design
Both transmission lines and waveguides can be used as carriers for high frequency signal transmission, while microstrip lines and strip lines in TEM transmission lines and Substrate Integrated Waveguide in Waveguide structures are applied in the design of high frequency PCBs.
High frequency PCB wiring skills
The radiation intensity of the signal is proportional to the wiring length of the signal line. The longer the high-frequency signal lead is, the easier it is to be coupled to the components close to it. Therefore, the high-frequency signal lines such as the signal clock, crystal oscillator, DDR data, LVDS line, USB line, HDMI cable and so on are required to be as short as possible.
Blind Vias
Blind Vias is to connect an outer layer to at least one inner layer
|
Min. Hole Diameter/mm |
Minimum ring/mm |
via-in-pad Diameter/mm |
Maximum Diameter/mm |
Aspect Ratio |
Blind Vias(mechanical drilling) |
0.1 |
0.1 |
0.3 |
0.4 |
1:10 |
Blind Vias (Laser drilling) |
0.075 |
0.075 |
0.225 |
0.4 |
1:12 |
Advantages of Rogers PCB
Good impedance control
With low dielectric loss, low signal loss
Suitable for harsh environmental conditions.
It is very cost effective in circuit manufacturin
Rogers PCB showed significantly less water absorption and improved thermal management.
The coefficient of thermal expansion of the RO4000 material is similar to that of copper, which provides dimensional stability
Equipment display
Automatic Plating Line
PTH line
LDI
CCD Exposure Machine
Application
Communications
Security electronics
Railtransit
Our factory
Product detail pictures:
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By Marian from Karachi - 2017.06.19 13:51
The factory workers have rich industry knowledge and operational experience, we learned a lot in working with them,we are extremely grateful that we can encount a good company has excellent wokers.
By Jessie from Manila - 2018.02.12 14:52