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Aspect Ratio Calculator for VIAS

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Y

YHB)

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Can someone help me out with the formula I can use to make a simple calculator script or guide me with the formula I should use or maybe knows a utility I can use to do the job ? This are my conditions for the calculator.

CONDITIONS:
- Pad Over Via = .007 mil
- Aspect Ratio = 6:1
- Maximum Via = .010 mil
- Minimum Via = .003 mil

INPUT:
- Capture Pad Size.....: _______<---will fill information
- O/L Pad Size...........:________<---will fill information
- Dielectric Thickness.:________<---will fill information
- Via Size..................:________<---will fill information
..............................................................................
................................ANSWER = Aspect Ratio.........


Thanks in advance.

YHB)
 

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