Question "breakout"

[STOIKOV]

have a doubt, when refering to "breakout", its meaning is the routing from the pins of an IC to a distance over the package limits. Or it's about dimensions change in the width of a line?

 

[kender]

have a doubt, when refering to "breakout", its meaning is the routing from the pins of an IC to a distance over the package limits. Or it's about dimensions change in the width of a line?

Hard to say. Could you give more context? If you could post the sentence or the paragraph, where the word "breakout" is used in your case, that would help us answer.

 

[touringmike]

have a doubt, when refering to "breakout", its meaning is the routing from the pins of an IC to a distance over the package limits. Or it's about dimensions change in the width of a line?

Generally speaking, PCB design terms:

"breakout" = to pre-route the pads of a BGA to vias outside the perimeter of the device, before routing the remainder of the design.

Break-out and Fan-out are similar. Break-outs are what is usually required for a BGA device where no vias are allowed or won't fit under the device, while Fan-outs where used to provide a means to make surface mount pads accessible to testing pins, such as a bed-of-nails test fixture.

Break-out can also mean rails added to the perimeter of the board outline that can be snapped off after the assembly procedure.

dimensions change in the width of a line? = "Neck-down".

 

[chinta]

do u mean fan-out? if so there are few, you can check on the web

 

[tdt]

if you say break-out , this is the only required length from the BGA to neck-down a trace.