Via Plugging, Tenting, Filling – what does WEdirekt offer?
PCB Expert tip #5
There are different possibilities to seal vias, but the terminology is not always clear.
At WEdirekt we offer plugged vias according to IPC 4761 type III-a. You may know this term as “tented”.
This type is a via sealed with a non-conductive material on one side only.
Please note: plugging as per type III-a is not possible if the vias are in solderable areas. Please find more information in our specification.
If you want to know more about other possibilities such as tenting, filling or microvia filling, we recommend the design guide of Würth Elektronik. Here you can find the full spectrum of knowledge of a PCB manufacturer.