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What is the scribe line and how to measure it?

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scribe line--------its the boundary line of the die.....each scrieb line has guard rings connections.....correct me

also i wanna know how to measure scribe line?? wat i sthe unit ?? can anyoen give rough figure......

thanks in advance
 

seal ring scribe line

i think the guard rings around it are called seal ring.
 

wiki, scribe line

Usually the units are "Microns" [ 1/1000 mm ] or "Mils" [ 1/1000 inch ]

- where:

1 Micron = 0.0394 Mils
1 Mil = 25.4 Microns
 

wat in scribe line

The seal ring is placed outside the pad area but before the scribe line.
 

scribeline sealring

Seal ring is to give strength to the die, and scribe line is margin for wafer cutting. Rough figures are abt 15u from pad, all sides (combining sealreing & scribline)


Rahul
 

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    vreddy

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scribe line design

How are scribe lines and seal rings implemented ? Is it implemented using the P&R tool ? I don't see a way to do it in Magma's Blast Fusion.
 

scribe line profile

this term is used with respect to the wafer and not a single die ... so u might not get much info on this in blast fusion etc., apart from the die size decided for a chip, a clearance figure of few microns are added around the die size so that the various adjacent dies can be cut from the wafer.. this is however a very crude explanation of the same... might not be very technical!!
 

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