From e8ed7b1d1b5bef31e9874f679a5797c2e00d06f1 Mon Sep 17 00:00:00 2001 From: Nilay Vaish Date: Sat, 11 Oct 2014 15:02:23 -0500 Subject: ext: add the source code for DSENT This patch adds a tool called DSENT to the ext/ directory. DSENT is a tool that models power and area for on-chip networks. The next patch adds a script for using the tool. --- ext/dsent/tech/tech_models/Bulk32LVT.model | 168 +++++++++++++++++++++++++++++ 1 file changed, 168 insertions(+) create mode 100644 ext/dsent/tech/tech_models/Bulk32LVT.model (limited to 'ext/dsent/tech/tech_models/Bulk32LVT.model') diff --git a/ext/dsent/tech/tech_models/Bulk32LVT.model b/ext/dsent/tech/tech_models/Bulk32LVT.model new file mode 100644 index 000000000..9a90bdaf9 --- /dev/null +++ b/ext/dsent/tech/tech_models/Bulk32LVT.model @@ -0,0 +1,168 @@ +# WARNING: Most commercial fabs will not be happy if you release their exact +# process information! If you derive these numbers through SPICE models, +# the process design kit, or any other confidential material, please round-off +# the values and leave the process name unidentifiable by fab (i.e. call it +# Bulk90LVT instead of TSMC90LVT) if you release parameters publicly. This +# rule may not apply for open processes, but you may want to check. + +# All units are in SI, (volts, meters, kelvin, farads, ohms, amps, etc.) + +# This file contains the model for a bulk 32nm LVT process +Name = Bulk32LVT + +# Supply voltage used in the circuit and for characterizations (V) +Vdd = 0.9 +# Temperature (K) +Temperature = 340 + +# ============================================================================= +# Parameters for transistors +# ============================================================================= + +# Contacted gate pitch (m) +Gate->PitchContacted = 0.160e-6 + +# Min gate width (m) +Gate->MinWidth = 0.120e-6 + +# Gate cap per unit width (F/m) +Gate->CapPerWidth = 0.950e-9 +# Source/Drain cap per unit width (F/m) +Drain->CapPerWidth = 0.640e-9 + +# Parameters characterization temperature (K) +Nmos->CharacterizedTemperature = 300.0 +Pmos->CharacterizedTemperature = 300.0 + +#------------------------------------------------------------------------------ +# I_Eff definition in Na, IEDM 2002 +# I_EFF = (I(VG = 0.5, VD = 1.0) + I(VG = 1.0, VD = 0.5))/2 +# R_EFF = VDD / I_EFF * 1 / (2 ln(2)) +# This is generally accurate for when input and output transition times +# are similar, which is a reasonable case after timing optimization +#------------------------------------------------------------------------------ +# Effective resistance (Ohm-m) +Nmos->EffResWidth = 0.890e-3 +Pmos->EffResWidth = 1.270e-3 + +#------------------------------------------------------------------------------ +# The ratio of extra effective resistance with each additional stacked +# transistor +# EffResStackRatio = (R_EFF_NAND2 - R_EFF_INV) / R_EFF_INV) +# For example, inverter has an normalized effective drive resistance of 1.0. +# A NAND2 (2-stack) will have an effective drive of 1.0 + 0.7, a NAND3 (3-stack) +# will have an effective drive of 1.0 + 2 * 0.7. Use NORs for Pmos. This fit +# works relatively well up to 4 stacks. This value will change depending on the +# VDD used. +#------------------------------------------------------------------------------ +# Effective resistance stack ratio +Nmos->EffResStackRatio = 0.78 +Pmos->EffResStackRatio = 0.66 + +#------------------------------------------------------------------------------ +# I_OFF defined as |I_DS| for |V_DS| = V_DD and |V_GS| = 0.0 +# Minimum off current is used as a second fit point, since I_OFF often +# stops scaling with transistor width below some threshold +#------------------------------------------------------------------------------ +# Off current per width (A/m) +Nmos->OffCurrent = 100e-3 +Pmos->OffCurrent = 100e-3 + +# Minimum off current (A) +Nmos->MinOffCurrent = 100e-9 +Pmos->MinOffCurrent = 20e-9 + +# Subthreshold swing (V/dec) +Nmos->SubthresholdSwing = 0.100 +Pmos->SubthresholdSwing = 0.100 + +# DIBL factor (V/V) +Nmos->DIBL = 0.150 +Pmos->DIBL = 0.150 + +# Subthreshold leakage temperature swing (K/dec) +Nmos->SubthresholdTempSwing = 100 +Pmos->SubthresholdTempSwing = 100 +#------------------------------------------------------------------------------ + +# ============================================================================= +# Parameters for interconnect +# ============================================================================= + +Wire->AvailableLayers = [Metal1,Local,Intermediate,Global] + +# Metal 1 Wire (used for std cell routing only) +# Min width (m) +Wire->Metal1->MinWidth = 55e-9 +# Min spacing (m) +Wire->Metal1->MinSpacing = 55e-9 +# Resistivity (Ohm-m) +Wire->Metal1->Resistivity = 4.00e-8 +# Metal thickness (m) +Wire->Metal1->MetalThickness = 100.0e-9 +# Dielectric thickness (m) +Wire->Metal1->DielectricThickness = 100.0e-9 +# Dielectric constant +Wire->Metal1->DielectricConstant = 3.2 + +# Local wire, 1.0X of the M1 pitch +# Min width (m) +Wire->Local->MinWidth = 55e-9 +# Min spacing (m) +Wire->Local->MinSpacing = 55e-9 +# Resistivity (Ohm-m) +Wire->Local->Resistivity = 4.00e-8 +# Metal thickness (m) +Wire->Local->MetalThickness = 100.0e-9 +# Dielectric thickness (m) +Wire->Local->DielectricThickness = 100.0e-9 +# Dielectric constant +Wire->Local->DielectricConstant = 3.2 + +# Intermediate wire, 2.0X the M1 pitch +# Min width (m) +Wire->Intermediate->MinWidth = 110e-9 +# Min spacing (m) +Wire->Intermediate->MinSpacing = 110e-9 +# Resistivity (Ohm-m) +Wire->Intermediate->Resistivity = 2.60e-8 +# Metal thickness (m) +Wire->Intermediate->MetalThickness = 200e-9 +# Dielectric thickness (m) +Wire->Intermediate->DielectricThickness = 170e-9 +# Dielectric constant +Wire->Intermediate->DielectricConstant = 3.00 + +# Global wire, 3.0X the M1 pitch +# Min width (m) +Wire->Global->MinWidth = 160e-9 +# Min spacing (m) +Wire->Global->MinSpacing = 160e-9 +# Resistivity (Ohm-m) +Wire->Global->Resistivity = 2.30e-8 +# Metal thickness (m) +Wire->Global->MetalThickness = 280e-9 +# Dielectric thickness (m) +Wire->Global->DielectricThickness = 250e-9 +# Dielectric constant +Wire->Global->DielectricConstant = 2.80 + +# ============================================================================= +# Parameters for Standard Cells +# ============================================================================= + +# The height of the standard cell is usually a multiple of the vertical +# M1 pitch (tracks). By definition, an X1 size cell has transistors +# that fit exactly in the given cell height without folding, or leaving +# any wasted vertical area + +# Reasonable values for the number of M1 tracks that we have seen are 8-14 +StdCell->Tracks = 11 +# Height overhead due to supply rails, well spacing, etc. Note that this will grow +# if the height of the standard cell decreases! +StdCell->HeightOverheadFactor = 1.400 + +# Sets the available sizes of each standard cell. Keep in mind that +# 1.0 is the biggest cell without any transistor folding +StdCell->AvailableSizes = [1.0, 1.4, 2.0, 3.0, 4.0, 6.0, 8.0, 10.0, 12.0, 16.0] + -- cgit v1.2.3