ICT

ICT file interconnect technology (ICT) process file

How to write ICT file.

@ilmView 600> Techgen -process_out [get_db flow_tech_path]/ruledecks/LPE/qrcTechFile
Techgen(tm) Tech file Generator.
INFO (EXTNXC-95) : Extracting procfile from
/usr/eda_tooling-a/pdk/epc/ohc15l_1v5/fdk_ohc15l_2v2/ruledecks/LPE/qrcTechFile
file.
INFO (EXTNXC-95) : Extracting p2lvsfile from
/usr/eda_tooling-a/pdk/epc/ohc15l_1v5/fdk_ohc15l_2v2/ruledecks/LPE/qrcTechFile
file.
INFO (EXTNXC-95) : Extracting RCGEN from
/usr/eda_tooling-a/pdk/epc/ohc15l_1v5/fdk_ohc15l_2v2/ruledecks/LPE/qrcTechFile
file.
Please see ictfile.log in this directory for the status of your request.
RCGEN.ict has been written out!

Take the below resistor as an example:

@ilmView 578> get_db resistor:R370998 .*
Object: resistor:epc909_pr_top/R370998
  capacitance:           0.0 0.0
  current:               2.35e-05
  current_direction:     right
  em_jmax_dc_avg_ratio:  0.0336
  em_jmax_dc_rms_ratio:  no_value
  failure_in_time:       no_value
  layer:                 MET1
  length:                6.82
  location:              {6219.12 890.68} {6225.94 890.68}
  name:                  R370998
  net:                   net:epc909_pr_top/vdd_d
  node_names:            {N80581 N80456}
  node_reff:             no_value
  node_voltage_drop:     13.3 13.3
  node_voltages:         1.97 1.97
  obj_type:              resistor
  resistance:            0.877
  switch_net:            net:epc909_pr_top/vdd_d
  what_if_capacitance:   0.0 0.0
  what_if_resistance:    0.877
  width:                 0.7

# ICT file about MET1
# Thickness-independent resistivity
conductor "MET1" {
        min_spacing             0.24
        min_width               0.24
        wire_top_enlargement    0
        wire_bottom_enlargement 0
        delta_height            0.350
        delta_layer             POLY
        thickness               0.530
        resistivity             0.090
        gate_forming_layer      FALSE
        temp_tc1                0.003430000
        temp_tc2               -0.000001080
}
R=resistivity*length/width
 =0.09*6.82/0.7=0.87685

Full ICT.

Reference from Cadence:

resistance_calculation.PNG

validating1.PNG

validating2.PNG

validating3.PNG