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This is the command druc that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


druc - Design Rule Checker

SYNOPSIS


druc input_name [ -v ] [ -h ]

DESCRIPTION


DRuC is a general parametrized VLSI design rule checker.
This tool replace the VERSATIL tool that is not anymore supported.
This manual presents the layout rules for tle ALLIANCE symbolic layout approach. The
rules are described in a technology file defined by the environment variable
RDS_TECHNO_NAME (see bellow).
The root cell and all the instanciated cells (except the intanciated libraries cells) must
be in the current directory.
The default mode of DRuC is (currently) full flat: it first flatten all the hierarchy in
order to obtain a flat, rectangle level description.

OPTIONS


-v Verbose mode on. Each step of the DRC is output on the standard output

-h Hierarchical design rule checking. Generates lots of files locally, to be used by
future invocation of druc. Don't ask me if and how this works, but since you also
fetched the sources, ...

DESIGN RULES DESCRIPTION


0: LAYER NAME.
This section explicits the layer name used in the following rules.
- NWELL : N well
- NTIE : N well polarisation
- PTIE : P substrat polarisation
- NDIF : N diffusion
- PDIF : P diffusion
- GATE : transistor gate
- POLY : polysilicon wire
- ALU1 : first level of metal
- ALU2 : second level of metal
- CONT : contact between ALU1 and POLY or DIFF
- VIA : contact between ALU1 and ALU2
I: LAYER WIDTH.
This class of rules deals with the width limits of a layer. and the conditions for
equipotentiality between two overlapping or abutting segments.

rule 1 :
the minimum width for a segment of NWELL is 4
corresponding error codes are : 100 101
rule 2 :
the minimum width for a segment of NTIE is 2
corresponding error code is : 119
rule 3 :
the minimum width for a segment of PTIE is 2
corresponding error codes are : 122 123
rule 4 :
the minimum width for a segment of NDIF is 2
corresponding error codes are : 140 141
rule 5 :
the minimum width for a segment of PDIF is 2
corresponding error codes are : 165 166
rule 6 :
the minimum width for a segment of GATE is 1
corresponding error codes are : 234 235
rule 7 :
the minimum width for a segment of POLY is 1
corresponding error codes are : 234 235
rule 8 :
the minimum width for a segment of ALU1 is 1
corresponding error codes are : 238 239
rule 9 :
the minimum width for a segment of ALU2 is 2
corresponding error codes are : 242 243
rule 10 :
the width of a CONT must be equal to 1
corresponding error codes are : 246 247
rule 11 :
the width of a VIA must be equal to 1
corresponding error codes are : 261 262
II: FORBIDDEN OVERLAP

This class of rules specifies the forbidden overlaps between two layers. (The distance
between them must be strictly positive)
rule 12 :
contact between PTIE and NWELL is forbidden.
corresponding error codes are : 126 127 128 129 130 131
rule 13 :
contact between PTIE and NTIE is forbidden.
corresponding error codes are : 133 134 135 136 137 138
rule 14 :
contact between NDIF and NWELL is forbidden.
corresponding error codes are : 144 145 146 147 148 149
rule 15 :
contact between NDIF and NTIE is forbidden.
corresponding error codes are : 151 152 153 154 155 156
rule 16 :
contact between NDIF and PTIE is forbidden.
corresponding error codes are : 158 159 160 161 162 163
rule 17 :
contact between PDIF and NTIE is forbidden.
corresponding error codes are : 169 170 171 172 173 174
rule 18 :
contact between PDIF and PTIE is forbidden.
corresponding error codes are : 176 177 178 179 180 181
rule 19 :
contact between PDIF and NDIF is forbidden.
corresponding error codes are : 183 184 185 186 187 188
rule 20 :
contact between GATE and NTIE is forbidden.
corresponding error codes are : 191 192 193 194 195 196
rule 21 :
contact between GATE and PTIE is forbidden.
corresponding error codes are : 198 199 200 201 202 203
rule 22 :
contact between POLY and NTIE is forbidden.
corresponding error codes are : 207 208 209 210 211 212
rule 23 :
contact between POLY and PTIE is forbidden.
corresponding error codes are : 214 215 216 217 218 219
rule 24 :
contact between POLY and NDIF is forbidden.
corresponding error codes are : 221 222 223 224 225 226
rule 25 :
contact between POLY and PDIF is forbidden.
corresponding error codes are : 228 229 230 231 232 233
rule 26 :
contact between CONT and GATE or POLY is forbidden.
corresponding error codes are : 249 250 251 252 253
rule 27 :
contact between VIA and GATE is forbidden.
corresponding error codes are : 264 265 266 267 268 269
rule 28 :
contact between VIA and POLY is forbidden.
corresponding error codes are : 271 272 273 274 275 276
rule 29 :
contact between VIA and CONT is forbidden.
corresponding error codes are : 278 279 280 281 282 283
rule 30 :
contact between NTIE and NWELL is forbidden.
corresponding error code is : 109
rule 31 :
contact between PDIF and NWELL is forbidden.
corresponding error code is : 117
III: LAYER NOTCH.
This class of rules deals with the notch limits of a layer.
rule 32 :
the minimum notch for a segment of NWELL is 4
corresponding error code is : 102
rule 33 :
the minimum notch for a segment of NTIE is 2
corresponding error code is : 120
rule 34 :
the minimum notch for a segment of PTIE is 2
corresponding error code is : 124
rule 35 :
the minimum notch for a segment of NDIF is 2
corresponding error code is : 142
rule 36 :
the minimum notch for a segment of PDIF is 2
corresponding error code is : 167
rule 37 :
the minimum notch for a segment of POLY is 1
corresponding error code is : 236
rule 38 :
the minimum notch for a segment of ALU1 is 2.5
corresponding error code is : 240
rule 39 :
the minimum notch for a segment of ALU2 is 2
corresponding error code is : 244
IV: MINIMUM SPACING
This class of rules specifies the minimum edge-to-edge distance allowed between two
layers.
rule 40 :
the minimum distance between NWELL and NWELL is 12
corresponding error code is : 118
rule 42 :
the minimum distance between NTIE and NTIE is 3
corresponding error code is : 121
rule 43 :
the minimum distance between PTIE and NWELL is 7.5
corresponding error code is : 125
rule 44 :
the minimum distance between PTIE and NTIE is 8
corresponding error code is : 132
rule 45 :
the minimum distance between PTIE and PTIE is 3
corresponding error code is : 139
rule 46 :
the minimum distance between NDIF and NWELL is 7.5
corresponding error code is : 143
rule 47 :
the minimum distance between NDIF and NTIE is 8
corresponding error code is : 150
rule 48 :
the minimum distance between NDIF and PTIE is 3
corresponding error code is : 157
rule 49 :
the minimum distance between NDIF and NDIF is 3
corresponding error code is : 164
rule 51 :
the minimum distance between PDIF and NTIE is 3
corresponding error code is : 168
rule 52 :
the minimum distance between PDIF and PTIE is 8
corresponding error code is : 175
rule 53 :
the minimum distance between PDIF and NDIF is 8
corresponding error code is : 182
rule 54 :
the minimum distance between PDIF and PDIF is 3
corresponding error code is : 189
rule 55 :
the minimum distance between GATE and NTIE is 1
corresponding error code is : 190
rule 56 :
the minimum distance between GATE and PTIE is 1
corresponding error code is : 197
rule 57 :
the minimum distance between GATE and NDIF is 1
corresponding error code is : 204
rule 58 :
the minimum distance between GATE and PDIF is 1
corresponding error code is : 205
rule 59 :
the minimum distance between GATE and GATE is 2
corresponding error code is : 237
rule 60 :
the minimum distance between POLY and NTIE is 1
corresponding error code is : 206
rule 61 :
the minimum distance between POLY and PTIE is 1
corresponding error code is : 213
rule 62 :
the minimum distance between POLY and NDIF is 1
corresponding error code is : 220
rule 63 :
the minimum distance between POLY and PDIF is 1
corresponding error code is : 227
rule 64 :
the minimum distance between POLY and GATE is 2
corresponding error code is : 237
rule 65 :
the minimum distance between POLY and POLY is 2
corresponding error code is : 237
rule 66 :
the minimum distance between ALU1 and ALU1 is 2.5
corresponding error code is : 241
rule 67 :
the minimum distance between ALU2 and ALU2 is 2
corresponding error code is : 245
rule 68 :
the minimum distance between CONT and CONT is 3
corresponding error code is : 254
rule 69 :
the minimum distance between VIA and GATE is 2
corresponding error code is : 263
rule 70 :
the minimum distance between VIA and POLY is 2
corresponding error code is : 270
rule 71 :
the minimum distance between VIA and CONT is 2
corresponding error code is : 277
rule 72 :
the minimum distance between VIA and VIA is 3
corresponding error code is : 284
rule 73 :
the minimum distance between CONT and GATE or POLY is 1.5
corresponding error code is : 248
V: TOTAL INCLUSION.
The last class of rules deals with the inclusion of a layer in another one.
rule 74 :
NTIE must be included in NWELL with a minimun margin of 0.5
corresponding error code is : 103
rule 75 :
PDIF must be included in NWELL with a minimun margin of 0.5
corresponding error code is : 110

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