The-OpenROAD-Project_OpenROAD/src/dbSta/test/check_ip_test.lef

VERSION 5.8 ;
BUSBITCHARS "[]" ;
DIVIDERCHAR "/" ;

UNITS
  DATABASE MICRONS 1000 ;
END UNITS

MANUFACTURINGGRID 0.005 ;

LAYER M1
  TYPE ROUTING ;
  DIRECTION HORIZONTAL ;
  PITCH 0.200 ;
  WIDTH 0.100 ;
  AREA 0.020 ;
END M1

LAYER M2
  TYPE ROUTING ;
  DIRECTION VERTICAL ;
  PITCH 0.200 ;
  WIDTH 0.100 ;
END M2

# FinFET layer for LEF-CHK-008 test
LAYER fin_drawing
  TYPE MASTERSLICE ;
END fin_drawing

SITE unit
  CLASS CORE ;
  SIZE 0.200 BY 2.000 ;
  SYMMETRY Y ;
END unit

# =============================================================================
# LEF-CHK-000: Macro with good alignment, all checks should pass
# =============================================================================
MACRO pass_all_checks
  CLASS BLOCK ;
  ORIGIN 0 0 ;
  SIZE 10.000 BY 10.000 ;
  PIN A
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M1 ;
      RECT 0.000 1.000 0.200 1.200 ;
    END
  END A
  PIN VDD
    DIRECTION INOUT ;
    USE POWER ;
    PORT
      LAYER M1 ;
      RECT 0.000 0.000 10.000 0.200 ;
    END
  END VDD
END pass_all_checks

# =============================================================================
# LEF-CHK-001: Macro dimensions NOT aligned to manufacturing grid (0.005 um)
# Width 10.001 is not divisible by 0.005
# =============================================================================
MACRO lef001_grid_width
  CLASS BLOCK ;
  ORIGIN 0 0 ;
  SIZE 10.001 BY 10.000 ;
  PIN A
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M1 ;
      RECT 0.000 1.000 0.200 1.200 ;
    END
  END A
END lef001_grid_width

# =============================================================================
# LEF-CHK-002: Pin coordinates NOT aligned to manufacturing grid
# Pin rect uses 0.001 which is not on 0.005 grid
# =============================================================================
MACRO lef002_pin_grid
  CLASS BLOCK ;
  ORIGIN 0 0 ;
  SIZE 10.000 BY 10.000 ;
  PIN A
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M1 ;
      RECT 0.001 1.000 0.200 1.200 ;
    END
  END A
END lef002_pin_grid

# =============================================================================
# LEF-CHK-003a: Pin distances compatible with single-pattern track grid (PASS)
# Two minimum-width pins on M1 (horizontal, pitch 0.200 = 200 DBU)
# Pin A center_y = (1000+1100)/2 = 1050
# Pin B center_y = (1400+1500)/2 = 1450
# Distance = 400, GCD = 400. 400 % 200 == 0 -> PASS
# =============================================================================
MACRO lef003a_single_pass
  CLASS BLOCK ;
  ORIGIN 0 0 ;
  SIZE 10.000 BY 10.000 ;
  PIN A
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M1 ;
      RECT 0.000 1.000 0.200 1.100 ;
    END
  END A
  PIN B
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M1 ;
      RECT 0.000 1.400 0.200 1.500 ;
    END
  END B
END lef003a_single_pass

# =============================================================================
# LEF-CHK-003b: Pin distances NOT compatible with single-pattern grid (FAIL)
# Three minimum-width pins on M2 (vertical, pitch 0.200 = 200 DBU)
# Pin A center_x = (100+200)/2 = 150
# Pin B center_x = (250+350)/2 = 300
# Pin C center_x = (380+480)/2 = 430
# Distances: 150, 130. GCD = 10. 10 % 200 != 0 -> FAIL
# =============================================================================
MACRO lef003b_single_fail
  CLASS BLOCK ;
  ORIGIN 0 0 ;
  SIZE 10.000 BY 10.000 ;
  PIN A
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M2 ;
      RECT 0.100 1.000 0.200 1.200 ;
    END
  END A
  PIN B
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M2 ;
      RECT 0.250 1.000 0.350 1.200 ;
    END
  END B
  PIN C
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M2 ;
      RECT 0.380 1.000 0.480 1.200 ;
    END
  END C
END lef003b_single_fail

# =============================================================================
# LEF-CHK-003c: Multi-pattern effective pitch allows alignment (PASS)
# M2 has two track patterns: pitch=200 at offsets 0 and 100
# Effective pitch = GCD(200, 200, |100-0|) = 100
# Two minimum-width pins on M2:
# Pin A center_x = (100+200)/2 = 150
# Pin B center_x = (400+500)/2 = 450
# Distance = 300. GCD = 300. 300 % 100 == 0 -> PASS
# Note: 300 % 200 != 0, so this would FAIL with single pattern.
# This demonstrates that the effective pitch matters.
# =============================================================================
MACRO lef003c_multi_pass
  CLASS BLOCK ;
  ORIGIN 0 0 ;
  SIZE 10.000 BY 10.000 ;
  PIN A
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M2 ;
      RECT 0.100 1.000 0.200 1.200 ;
    END
  END A
  PIN B
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M2 ;
      RECT 0.400 1.000 0.500 1.200 ;
    END
  END B
END lef003c_multi_pass

# =============================================================================
# LEF-CHK-003d: Multi-pattern effective pitch still can't align (FAIL)
# M2 effective pitch = 100 (from two patterns above)
# Three minimum-width pins on M2:
# Pin A center_x = (100+200)/2 = 150
# Pin B center_x = (230+330)/2 = 280
# Pin C center_x = (390+490)/2 = 440
# Distances: 130, 160. GCD(130, 160) = 10. 10 % 100 != 0 -> FAIL
# =============================================================================
MACRO lef003d_multi_fail
  CLASS BLOCK ;
  ORIGIN 0 0 ;
  SIZE 10.000 BY 10.000 ;
  PIN A
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M2 ;
      RECT 0.100 1.000 0.200 1.200 ;
    END
  END A
  PIN B
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M2 ;
      RECT 0.230 1.000 0.330 1.200 ;
    END
  END B
  PIN C
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M2 ;
      RECT 0.390 1.000 0.490 1.200 ;
    END
  END C
END lef003d_multi_fail

# =============================================================================
# LEF-CHK-004-005a: Pin fully blocked on same layer AND above layer
# M1 obstruction completely overlaps the pin, preventing same-layer routing access.
# M2 obstruction prevents access from the layer above.
# M1 is routing level 1, so there's nothing below to access from either.
# =============================================================================
MACRO lef004_005a_fully_blocked
  CLASS BLOCK ;
  ORIGIN 0 0 ;
  SIZE 10.000 BY 10.000 ;
  PIN SIG
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M1 ;
      RECT 1.000 1.000 1.200 1.200 ;
    END
  END SIG
  OBS
    LAYER M1 ;
    RECT 0.900 0.900 1.300 1.300 ;
    LAYER M2 ;
    RECT 0.900 0.900 1.300 1.300 ;
  END
END lef004_005a_fully_blocked

# =============================================================================
# LEF-CHK-004-005b: Pin blocked on same layer, but accessible from above (PASS)
# M1 obstruction blocks all edges, but NO M2 obstruction, so from M2 works.
# =============================================================================
MACRO lef004_005b_multi_shape_pass
  CLASS BLOCK ;
  ORIGIN 0 0 ;
  SIZE 10.000 BY 10.000 ;
  PIN SIG
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M1 ;
      RECT 1.000 1.000 1.200 1.200 ;
    END
  END SIG
  OBS
    LAYER M1 ;
    RECT 0.900 0.900 1.300 1.300 ;
  END
END lef004_005b_multi_shape_pass

# =============================================================================
# LEF-CHK-004-005c: Power pin blocked on same layer AND above (FAIL)
# =============================================================================
MACRO lef004_005c_power_blocked
  CLASS BLOCK ;
  ORIGIN 0 0 ;
  SIZE 10.000 BY 10.000 ;
  PIN VDD
    DIRECTION INOUT ;
    USE POWER ;
    PORT
      LAYER M1 ;
      RECT 1.000 1.000 1.200 1.200 ;
    END
  END VDD
  OBS
    LAYER M1 ;
    RECT 0.900 0.900 1.300 1.300 ;
    LAYER M2 ;
    RECT 0.900 0.900 1.300 1.300 ;
  END
END lef004_005c_power_blocked

# =============================================================================
# LEF-CHK-004-005d: Pin on macro boundary, covered by same-layer OBS (PASS)
# The pin is located at x=0 (west macro edge) and is geometrically overlapped
# by M1 and M2 obstructions inside the macro.
# However, because the pin touches the macro boundary, routing access is still
# possible from outside the macro (west side).
# =============================================================================
MACRO lef004_005d_edge_pin
  CLASS BLOCK ;
  ORIGIN 0 0 ;
  SIZE 10.000 BY 10.000 ;
  PIN SIG
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M1 ;
      RECT 0.000 1.000 0.200 1.200 ;
    END
  END SIG
  OBS
    LAYER M1 ;
    RECT 0.000 0.900 0.300 1.300 ;
    LAYER M2 ;
    RECT 0.000 0.900 0.300 1.300 ;
  END
END lef004_005d_edge_pin

# =============================================================================
# LEF-CHK-006: Excessive polygon count (test with -max_polygons 5)
# This macro has many obstructions to trigger polygon count warning
# =============================================================================
MACRO lef006_polygon_count
  CLASS BLOCK ;
  ORIGIN 0 0 ;
  SIZE 10.000 BY 10.000 ;
  PIN A
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M1 ;
      RECT 0.000 1.000 0.200 1.200 ;
    END
  END A
  OBS
    LAYER M1 ;
    RECT 2.000 2.000 2.100 2.100 ;
    RECT 3.000 3.000 3.100 3.100 ;
    RECT 4.000 4.000 4.100 4.100 ;
    RECT 5.000 5.000 5.100 5.100 ;
    RECT 6.000 6.000 6.100 6.100 ;
  END
END lef006_polygon_count

# =============================================================================
# LEF-CHK-007: Signal pin missing antenna model
# =============================================================================
MACRO lef007_no_antenna
  CLASS BLOCK ;
  ORIGIN 0 0 ;
  SIZE 10.000 BY 10.000 ;
  PIN A
    DIRECTION INPUT ;
    USE SIGNAL ;
    PORT
      LAYER M1 ;
      RECT 0.000 1.000 0.200 1.200 ;
    END
  END A
END lef007_no_antenna

# =============================================================================
# LEF-CHK-008: FinFET technology detection (info only, use -verbose)
# Detects if any layer name contains "fin" 
# =============================================================================
MACRO lef008_finfet
  CLASS BLOCK ;
  ORIGIN 0 0 ;
  SIZE 10.000 BY 10.000 ;
  PIN A
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M1 ;
      RECT 0.000 1.000 0.200 1.200 ;
    END
  END A
END lef008_finfet

# =============================================================================
# LEF-CHK-009: Signal pin has NO geometry defined
# =============================================================================
MACRO lef009_no_geometry
  CLASS BLOCK ;
  ORIGIN 0 0 ;
  SIZE 10.000 BY 10.000 ;
  PIN A
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
  END A
END lef009_no_geometry

# =============================================================================
# LEF-CHK-010a: Pin width perpendicular to routing direction < layer min width
# M1 is HORIZONTAL, so "width" = dy (height of the rect).
# Pin has dy = 0.050 (50 DBU) which is less than M1 min width 0.100 (100 DBU).
# Note: dx = 0.200 (200 DBU) which is FINE - we only check perpendicular.
# =============================================================================
MACRO lef010a_small_width
  CLASS BLOCK ;
  ORIGIN 0 0 ;
  SIZE 10.000 BY 10.000 ;
  PIN A
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M1 ;
      RECT 0.000 1.000 0.200 1.050 ;
    END
  END A
END lef010a_small_width

# =============================================================================
# LEF-CHK-010b: Pin width OK in perpendicular, small in parallel (PASS)
# M1 is HORIZONTAL, so "width" = dy = 0.200 >= 0.100
# Even though dx = 0.050 (small), that's the "length" direction, not checked.
# Area = 50*400 = 20000 >= 20000 (M1 AREA rule)
# =============================================================================
MACRO lef010b_length_ok
  CLASS BLOCK ;
  ORIGIN 0 0 ;
  SIZE 10.000 BY 10.000 ;
  PIN A
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M1 ;
      RECT 0.000 1.000 0.050 1.400 ;
    END
  END A
END lef010b_length_ok

# =============================================================================
# LEF-CHK-010b: Pin area less than layer minimum area (FAIL)
# M1 AREA = 0.020 um^2 = 20000 DBU^2
# Pin: RECT 0.000 1.000 0.100 1.100 -> dx=100, dy=100 -> area=10000 < 20000
# =============================================================================
MACRO lef010b_small_area
  CLASS BLOCK ;
  ORIGIN 0 0 ;
  SIZE 10.000 BY 10.000 ;
  PIN A
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M1 ;
      RECT 0.000 1.000 0.100 1.100 ;
    END
  END A
END lef010b_small_area

# =============================================================================
# LEF-CHK-010b: Pin area meets minimum area (PASS)
# Pin: RECT 0.000 1.000 0.200 1.200 -> dx=200, dy=200 -> area=40000 >= 20000
# =============================================================================
MACRO lef010b_area_ok
  CLASS BLOCK ;
  ORIGIN 0 0 ;
  SIZE 10.000 BY 10.000 ;
  PIN A
    DIRECTION INPUT ;
    USE SIGNAL ;
    ANTENNAMODEL OXIDE1 ;
    PORT
      LAYER M1 ;
      RECT 0.000 1.000 0.200 1.200 ;
    END
  END A
END lef010b_area_ok

END LIBRARY