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Every ISO5, ISO20, ISO40, ISO60, ISO80, ISO100 and ISO120 block region must have a BNP N+AA pick up ring,
and this ISO mark layer every edge must interact with 1st P-substrate P+AA guard ring(from internal to outside) and mustn’t be a ring
器件是smic下的nde60_hs_iso_ckt,本人对pick up ring了解不深,不清楚BNP N+AA pick up ring具体怎么画,只是打了两层guardring,先p再n,但没有解决问题,向各位大佬求助一下,感谢指导
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