SPF,DSPF,RDPF,SPEF and SBPF.

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SPF--Standard Parasitic Format
DSPF--Detailed Standard Parasitic Format
RSPF--Reduced Standard Parasitic Format
SPEF--Standard Parasitic Exchange Format
SBPF -- Synopsys Binary Parasitic Format

總結: SPF,DSPF,RSPF均為Candence格式,均不包含crosstalk C的資訊,不可用於PT si.

DSPF 有詳盡的RC資訊,size比較大,比較接近SPICE netlist.

RSPF是reduced SPF.It represents each net as an RC "pi" model.RSPF causes the PrimeTime tool to calculate an Elmore delay for every pin-to-pin interconnect delay.

SPEF是OVI出的標準格式,被IEEE採用,同樣可以劃分為DSPEF和RSPEF. SPEF包含了net 之間的cap,可以用來計算crosstalk.用於PT Si.

SBPF是二進位格式,由Synopsy所出.size較小,讀的比較快,可以用使用Synopsis的軟體寫出此格式.

PrimeTime can read DSPF, RSPF, and SPEF and can automatically detect the format
from the file header. PrimeTime can read SPEF versions IEEE 1481-1997, IEEE
1481-1998, and IEEE 1481-1999.