diff --git a/src/lvs/unit_tests/lvsSimpleTests.cc b/src/lvs/unit_tests/lvsSimpleTests.cc index fe7f97127..f5eb6e9f8 100644 --- a/src/lvs/unit_tests/lvsSimpleTests.cc +++ b/src/lvs/unit_tests/lvsSimpleTests.cc @@ -307,3 +307,9 @@ TEST(50_SoftConnection) run_test (_this, "soft_connect1", "soft_connect1.gds", true, false /*no LVS*/); } +// No errors +TEST(51_SoftConnection) +{ + run_test (_this, "soft_connect2", "soft_connect2.gds", true, false /*no LVS*/); +} + diff --git a/testdata/lvs/soft_connect2.cir b/testdata/lvs/soft_connect2.cir new file mode 100644 index 000000000..61ac75956 --- /dev/null +++ b/testdata/lvs/soft_connect2.cir @@ -0,0 +1,13 @@ +* Extracted by KLayout + +.SUBCKT TOP A Q VDD SUBSTRATE|VSS +X$1 SUBSTRATE|VSS VDD VDD \$1 Q SUBSTRATE|VSS INV +X$2 SUBSTRATE|VSS VDD VDD A \$1 SUBSTRATE|VSS INV +.ENDS TOP + +.SUBCKT INV \$1 \$2 \$3 \$4 \$5 SUBSTRATE +M$1 \$2 \$4 \$5 \$3 PMOS L=0.25U W=0.95U AS=0.73625P AD=0.73625P PS=3.45U ++ PD=3.45U +M$2 \$1 \$4 \$5 SUBSTRATE NMOS L=0.25U W=0.95U AS=0.73625P AD=0.73625P PS=3.45U ++ PD=3.45U +.ENDS INV diff --git a/testdata/lvs/soft_connect2.gds b/testdata/lvs/soft_connect2.gds new file mode 100644 index 000000000..a223df098 Binary files /dev/null and b/testdata/lvs/soft_connect2.gds differ diff --git a/testdata/lvs/soft_connect2.l2n b/testdata/lvs/soft_connect2.l2n new file mode 100644 index 000000000..d75ed206d --- /dev/null +++ b/testdata/lvs/soft_connect2.l2n @@ -0,0 +1,213 @@ +#%l2n-klayout +W(TOP) +U(0.001) +L(l3 '1/0') +L(l4 '3/0') +L(l15 '3/1') +L(l8 '4/0') +L(l11 '5/0') +L(l12 '6/0') +L(l16 '6/1') +L(l13 '7/0') +L(l14 '8/0') +L(l17 '8/1') +L(l7) +L(l10) +L(l2) +L(l9) +L(l6) +C(l3 l3 l10) +C(l4 l4 l15 l11) +C(l15 l4 l15) +C(l8 l8 l12 l10 l2 l9 l6) +CS(l8 l10 l2 l9 l6) +C(l11 l4 l11 l12) +CS(l11 l4) +C(l12 l8 l11 l12 l16 l13) +C(l16 l12 l16) +C(l13 l12 l13 l14) +C(l14 l13 l14 l17) +C(l17 l14 l17) +C(l7 l7) +C(l10 l3 l8 l10) +CS(l10 l3) +C(l2 l8 l2) +C(l9 l8 l9) +C(l6 l8 l6) +G(l7 SUBSTRATE) +G(l9 SUBSTRATE) +GS(l9 SUBSTRATE) +K(PMOS MOS4) +K(NMOS MOS4) +D(D$PMOS PMOS + T(S + R(l2 (-900 -475) (775 950)) + ) + T(G + R(l4 (-125 -475) (250 950)) + ) + T(D + R(l2 (125 -475) (775 950)) + ) + T(B + R(l3 (-125 -475) (250 950)) + ) +) +D(D$NMOS NMOS + T(S + R(l6 (-900 -475) (775 950)) + ) + T(G + R(l4 (-125 -475) (250 950)) + ) + T(D + R(l6 (125 -475) (775 950)) + ) + T(B + R(l7 (-125 -475) (250 950)) + ) +) +X(INV + R((-1500 -800) (3000 4600)) + N(1 + R(l8 (290 -310) (220 220)) + R(l8 (-220 180) (220 220)) + R(l12 (-290 -690) (360 760)) + R(l13 (-305 -705) (250 250)) + R(l13 (-250 150) (250 250)) + R(l14 (-2025 -775) (3000 900)) + R(l6 (-1375 -925) (775 950)) + ) + N(2 + R(l8 (290 2490) (220 220)) + R(l8 (-220 180) (220 220)) + R(l12 (-290 -690) (360 760)) + R(l13 (-305 -705) (250 250)) + R(l13 (-250 150) (250 250)) + R(l14 (-2025 -775) (3000 900)) + R(l2 (-1375 -925) (775 950)) + ) + N(3 + R(l3 (-1500 1800) (3000 2000)) + ) + N(4 + R(l4 (-125 -250) (250 2500)) + R(l4 (-250 -3050) (250 1600)) + R(l4 (-250 1200) (250 1600)) + ) + N(5 + R(l8 (-510 -310) (220 220)) + R(l8 (-220 180) (220 220)) + R(l8 (-220 2180) (220 220)) + R(l8 (-220 180) (220 220)) + R(l12 (-290 -3530) (360 2840)) + R(l12 (-360 -2800) (360 760)) + R(l12 (-360 2040) (360 760)) + R(l2 (-680 -855) (775 950)) + R(l6 (-775 -3750) (775 950)) + ) + N(6 I(SUBSTRATE)) + P(1) + P(2) + P(3) + P(4) + P(5) + P(6 I(SUBSTRATE)) + D(1 D$PMOS + Y(0 2800) + E(L 0.25) + E(W 0.95) + E(AS 0.73625) + E(AD 0.73625) + E(PS 3.45) + E(PD 3.45) + T(S 5) + T(G 4) + T(D 2) + T(B 3) + ) + D(2 D$NMOS + Y(0 0) + E(L 0.25) + E(W 0.95) + E(AS 0.73625) + E(AD 0.73625) + E(PS 3.45) + E(PD 3.45) + T(S 5) + T(G 4) + T(D 1) + T(B 6) + ) +) +X(TOP + R((600 800) (8880 4600)) + N(1 + R(l4 (2920 2600) (2880 400)) + R(l11 (-300 -300) (200 200)) + R(l12 (-300 -300) (690 400)) + ) + N(2 I(A) + R(l4 (6600 2600) (2880 400)) + R(l15 (-2380 -200) (0 0)) + ) + N(3 I(Q) + R(l12 (1810 2600) (690 400)) + R(l16 (-400 -200) (0 0)) + ) + N(4 I(VDD) + R(l3 (4000 3400) (1600 2000)) + R(l3 (-5000 -2000) (1000 2000)) + R(l3 (6400 -2000) (1000 2000)) + R(l8 (-8000 -900) (200 200)) + R(l8 (-200 -600) (200 200)) + R(l8 (7200 200) (200 200)) + R(l8 (-200 -600) (200 200)) + R(l12 (-7900 -350) (800 900)) + R(l12 (6600 -900) (800 900)) + R(l13 (-7900 -350) (200 200)) + R(l13 (-200 -600) (200 200)) + R(l13 (7200 200) (200 200)) + R(l13 (-200 -600) (200 200)) + R(l14 (-4400 -350) (1200 900)) + R(l14 (-4800 -900) (1000 900)) + R(l14 (6400 -900) (1000 900)) + R(l17 (-4800 -450) (0 0)) + ) + N(5 I('SUBSTRATE,VSS') + R(l8 (1000 1700) (200 200)) + R(l8 (-200 -600) (200 200)) + R(l8 (7200 200) (200 200)) + R(l8 (-200 -600) (200 200)) + R(l12 (-7900 -350) (800 900)) + R(l12 (6600 -900) (800 900)) + R(l13 (-7900 -350) (200 200)) + R(l13 (-200 -600) (200 200)) + R(l13 (7200 200) (200 200)) + R(l13 (-200 -600) (200 200)) + R(l14 (-4400 -350) (1200 900)) + R(l14 (-4800 -900) (1000 900)) + R(l14 (6400 -900) (1000 900)) + R(l17 (-4800 -550) (0 0)) + ) + P(2 I(A)) + P(3 I(Q)) + P(4 I(VDD)) + P(5 I('SUBSTRATE,VSS')) + X(1 INV Y(3000 1600) + P(0 5) + P(1 4) + P(2 4) + P(3 1) + P(4 3) + P(5 5) + ) + X(2 INV Y(6600 1600) + P(0 5) + P(1 4) + P(2 4) + P(3 2) + P(4 1) + P(5 5) + ) +) diff --git a/testdata/lvs/soft_connect2.lvs b/testdata/lvs/soft_connect2.lvs new file mode 100644 index 000000000..a4ed6551d --- /dev/null +++ b/testdata/lvs/soft_connect2.lvs @@ -0,0 +1,92 @@ + +$lvs_test_source && source($lvs_test_source) + +if $lvs_test_target_l2n + report_netlist($lvs_test_target_l2n) +else + report_netlist +end + +writer = write_spice(true, false) +$lvs_test_target_cir && target_netlist($lvs_test_target_cir, writer, "Extracted by KLayout") + +deep + +# Drawing layers + +nwell = input(1, 0) +active = input(2, 0) +nplus = input(2, 1) +pplus = input(2, 2) +poly = input(3, 0) +poly_lbl = input(3, 1) +diff_cont = input(4, 0) +poly_cont = input(5, 0) +metal1 = input(6, 0) +metal1_lbl = input(6, 1) +via1 = input(7, 0) +metal2 = input(8, 0) +metal2_lbl = input(8, 1) + +# Bulk layer for terminal provisioning + +bulk = polygon_layer + +psd = nil +nsd = nil + +# Computed layers + +active_in_nwell = active & nwell +pactive = active_in_nwell & pplus +ntie = active_in_nwell & nplus +pgate = pactive & poly +psd = pactive - pgate + +active_outside_nwell = active - nwell +nactive = active_outside_nwell & nplus +ptie = active_outside_nwell & pplus +ngate = nactive & poly +nsd = nactive - ngate + +# Device extraction + +# PMOS transistor device extraction +extract_devices(mos4("PMOS"), { "SD" => psd, "G" => pgate, "W" => nwell, + "tS" => psd, "tD" => psd, "tG" => poly }) + +# NMOS transistor device extraction +extract_devices(mos4("NMOS"), { "SD" => nsd, "G" => ngate, "W" => bulk, + "tS" => nsd, "tD" => nsd, "tG" => poly }) + +# Define connectivity for netlist extraction + +# Inter-layer + +soft_connect(diff_cont, psd) +soft_connect(diff_cont, nsd) +soft_connect(diff_cont, ptie) +soft_connect(diff_cont, ntie) +soft_connect(ntie, nwell) +soft_connect(poly_cont, poly) + +connect(diff_cont, metal1) +connect(poly_cont, metal1) +connect(metal1, via1) +connect(via1, metal2) + +# attach labels +connect(poly, poly_lbl) +connect(metal1, metal1_lbl) +connect(metal2, metal2_lbl) + +# Global +connect_global(bulk, "SUBSTRATE") +soft_connect_global(ptie, "SUBSTRATE") + +# Netlist section (NOTE: we only check log here) +netlist + +netlist.simplify + +