I am trying to make a CMOS inverter using glayout....I have placed and moved the transistors successfully both in the X and Y directions. But for some reason when I try to connect gate of both the devices, it doesn't connect either with a c-route or a straight-route. But when I try to connect the sources they do connect. Here are the scripts I tried :

def cmosInverter(pdk: MappedPDK) :

cmosInverter = Component()

pfet= pmos(pdk,2.5,with_dummy=(True, True),with_substrate_tap=False)

nfet= nmos(pdk,1,with_dummy=(True, True),with_substrate_tap=False)

pfet_ref = cmosInverter << pfet

nfet_ref = cmosInverter << nfet

nfet_ref.movex(evaluate_bbox(pfet)[0] + 3*pdk.util_max_metal_seperation())

cmosInverter << c_route(pdk, pfet_ref.ports["multiplier_0_gate_E"], pfet_ref.ports["multiplier_0_gate_E"])

cmosInverter << c_route(pdk, pfet_ref.ports["multiplier_0_source_E"], nfet_ref.ports["multiplier_0_source_E"])

return cmosInverter

and when I try positioning them vertically :

def cmosInverter(pdk: MappedPDK) :

cmosInverter = Component()

pfet= pmos(pdk,2.5,with_dummy=(True, True),with_substrate_tap=False)

nfet= nmos(pdk,1,with_dummy=(True, True),with_substrate_tap=False)

pfet_ref = cmosInverter << pfet

nfet_ref = cmosInverter << nfet

nfet_ref.movey(evaluate_bbox(pfet)[1] + 3*pdk.util_max_metal_seperation())

cmosInverter << straight_route(pdk, pfet_ref.ports["multiplier_0_gate_N"], pfet_ref.ports["multiplier_0_gate_S"])

cmosInverter << straight_route(pdk, pfet_ref.ports["multiplier_0_source_N"], nfet_ref.ports["multiplier_0_source_S"])

return cmosInverter

@Koustubh you are connecting the gate of pfet to itself this code should work check it once !!

def cmosInverter(pdk: MappedPDK) :
    cmosInverter = Component()
    pfet= pmos(pdk,2.5,with_dummy=(True, True),with_substrate_tap=False)
    nfet= nmos(pdk,1,with_dummy=(True, True),with_substrate_tap=False)

pfet_ref = cmosInverter << pfet
    nfet_ref = cmosInverter << nfet

nfet_ref.movex(evaluate_bbox(pfet)[0] + 3*pdk.util_max_metal_seperation())

cmosInverter << c_route(pdk, pfet_ref.ports["multiplier_0_gate_E"], nfet_ref.ports["multiplier_0_gate_E"])
    cmosInverter << c_route(pdk, pfet_ref.ports["multiplier_0_source_E"], nfet_ref.ports["multiplier_0_source_E"])

return cmosInverter