Calibre经典教程和看LVS的错误报告的方法(3)

Example19（参见：lvs_test8.rep）：

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INFORMATION AND WARNINGS

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Matched Matched Unmatched Unmatched Component

Layout Source Layout Source Type

------- ------- --------- --------- ---------

Ports: 8 8 0 1

Nets: 19 19 1 3

Instances: 14 14 1 1 MN(nmos4)

6 6 0 0 MN(nmosi)

13 13 0 1 MP(pmos4)

------- ------- --------- --------- Total Inst: 33 33 1 2

o Statistics:

65 isolated layout nets were deleted.

19 layout mos transistors were reduced to 5.

14 mos transistors were deleted by parallel reduction. 14 source mos transistors were reduced to 3.

11 mos transistors were deleted by parallel reduction.

Example19中，前面的列表是对整个layout和netlist中匹配情况的一个统计；后面的描述表示有多少device被合并或者剔除。

Example20（参见：lvs_test7.rep）：

o Isolated Layout Nets:

(Layout nets which are not connected to any instances or ports).

18(169.800,39.400) 19(169.800,151.900) 23(15.400,42.050) 24(15.400,120.850) 25(31.400,38.450) 26(31.400,114.250) 27(45.000,72.050) 28(45.000,120.850) 29(51.150,36.750) 30(51.150,163.900) 31(51.450,58.050) 32(51.450,150.850) 33(69.400,54.150) 34(69.400,111.850) 35(106.200,43.050) 36(106.200,120.850) 37(117.300,38.450) 38(117.300,114.250) 39(144.300,42.050) 40(144.300,120.850) 41(155.400,38.450) 42(155.400,114.250) 43(169.800,39.400) 44(169.800,151.900) 45(171.200,84.350) 46(171.200,118.550) 47(176.600,49.200) 48(176.600,161.700) 49(183.550,46.200) 50(183.550,161.700) 51(183.600,73.600) 52(183.600,119.250) 53(210.550,46.900) 54(210.550,61.700) 55(218.950,46.900)

56(223.750,46.900) 57(0.400,27.050) 58(12.800,39.450) 59(12.800,115.250) 60(42.400,69.450) 61(42.400,115.250) 62(48.650,52.350) 63(48.650,148.250) 64(53.750,42.450) 65(53.750,166.500) 66(72.000,56.750) 67(72.000,116.150) 68(91.200,27.050) 69(103.600,39.450) 70(103.600,115.250)

Example20中，列出在layout找到的孤立的net，这些net没有连接到任何的device上，是一些悬空的net，可能是由于floating的dummy metal引起，可以忽略。

Example21（参见：lvs_test7.rep）：

o Passthrough Layout Nets And Their Ports:

(Layout nets which are connected only to ports).

zener_array[1](943.800,997.400) (port: zener_array[1]), zener_array[0](943.800,1055.000) (port: zener_array[0]),

Example21中，表示layout中有两个net没有连接到任何device，只接到了两个port上