What is mean by blind and burried vias

[Raju_epigon]

burried vias

What is mean by blind and burried vias

 

[IanP]

Check out these websites:

**broken link removed**
http://speedypcb.com/pcb-knowledgeBase/BuriedVia.htm

Regards,
IanP

 

[davidgrm]

Blind via example:

You have a 4 layer board. The via goes from the outer layer to an inner layer but does not go though to the opposite outside layer.

Buried Via:

You have a 6 layer board. The via goes from inside layer 1 to inside layer 4. It cannot be seen from either outside layer. Unless you designed the board you would have know way of knowing that it exists

 

[Anusuya]

For ease of rememberence

Blind via --blind in one eye--via from one outer layer to any of the inner layers.

Buried Via-- Buried in the earth---we cant able to see---via between the inner layers.

Anu