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

DESIGN check_ip_test ;

UNITS DISTANCE MICRONS 1000 ;

DIEAREA ( 0 0 ) ( 100000 100000 ) ;

# Single-pattern tracks on M1 (horizontal layer)
# Pitch = 200 DBU (0.200 um), origin at 100
TRACKS Y 100 DO 500 STEP 200 LAYER M1 ;

# Two-pattern tracks on M2 (vertical layer)
# Pattern 1: pitch=200, origin=0  -> tracks at 0, 200, 400, ...
# Pattern 2: pitch=200, origin=100 -> tracks at 100, 300, 500, ...
# Effective pitch = GCD(200, 200, |100-0|) = GCD(200, 100) = 100
TRACKS X 0 DO 500 STEP 200 LAYER M2 ;
TRACKS X 100 DO 500 STEP 200 LAYER M2 ;

END DESIGN