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add fixme note for unit conversion

This commit is contained in:
Sam Crow 2023-06-28 14:05:42 -07:00
parent 28ea93bd0a
commit 91694fdae3
1 changed files with 1 additions and 0 deletions
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compiler/base/wire_spice_model.py
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@ -18,6 +18,7 @@ class wire_spice_model():
def cal_wire_c(self, wire_length, wire_width): def cal_wire_c(self, wire_length, wire_width):
from openram.tech import spice from openram.tech import spice
# Convert the F/um^2 to fF/um^2 then multiple by width and length # Convert the F/um^2 to fF/um^2 then multiple by width and length
# FIXME: shouldn't it be 1e15?
total_c = (spice["wire_unit_c"]*1e12) * wire_length * wire_width total_c = (spice["wire_unit_c"]*1e12) * wire_length * wire_width
wire_c = total_c / self.lump_num wire_c = total_c / self.lump_num
return wire_c return wire_c