Case 2. These are all assymetric stripline formulas. Use the
same calculator as above. When calculating the impedance for
any trace, ignore the others.
Doug Brooks
At 01:59 PM 9/17/97 +0800, you wrote:
>Hi,
>Does anybody have idea about how to calculate the impedance of
>stackup with following structures.
>
>S-S-G-P-S-S ( 6 layers).
>
>and
>
>G-S-S-S-S-P (6 layers).
>
>I checked books and tried to find equations to calculate impedance.
>However, I cannot find any.
>
>
>Best Regards,
>
>JOHNLIN
>CAE Engineer of EDA Department
>Digital Equipment Corp. Taiwan Branch
>Email: [email protected]
>TEL: 1-886-3-3900000 ext. 2565
>
>
>
>