No of pins x metal pitch
Distance between the macros = -------------------------------
(no of metal layers used /2)
Consider one horizontal and vertical metal layer as one resource.
For 4 ML process, the denominator comes out to 2 and for 6 ML process it comes out to 3.
Finally calculate the value for two adjacent macros by doubling the above value
5 comments:
how to calculate blockage space around macro. Any fromula is there,help me
hi kanth,
can u be more clear about the metal layers count in denominator of the given formula. .whether they are horizantal or vertical or both . .pls if possible can u provide one figure related to this this context.
thanks,
balu .
Irrelevant of V or H zones . For simplicity just consider the total M layers and divide it by 2. For example if you are having M9 as your design specific 9/2.
No. of pins ex :- 500
Pitch :- 0.2
(500*0.2)/(9/2)= 22 micron .
This is an rough estimation , more practical approach will be according to your company std or get in touch with your designer or TL.
how to take metal pitch which one is considered for pitch (metal width + spacing)....?? which metal u prefered (M1 to M6) ?
Hi @Bala Krishna, if you have got the answer to your question, could you please post it here?
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