calibre經(jīng)典教程和看lvs的錯(cuò)誤報(bào)告方法

1、Calibre經(jīng)和看LVS的錯(cuò)的方calibrelvs的方1Report頭部分的WarningError（WarningErrorErrorreportError ErrorlvsnetlistCalibre經(jīng)和看LVS的錯(cuò)的方calibrelvs的方1Report頭部分的WarningError（WarningErrorErrorreportError ErrorlvsnetlistErrorle1 (參見(jiàn)文件“l(fā)vs_test1.rep”) ： 在”cell.cir”2191LVS Netlist Compiler - Errors and Warnings for Error: No m

2、atching .SUBCKT ement for ine 191 in file Error: No matching .SUBCKT ement for 2192 in file warningnetlistl vsle2_1le3, le4_1, le2_1lvstest2.reping是因?yàn)閏alibre不認(rèn)netlist中的參數(shù)”*.MEGA” ，這時(shí)需要netlist（”*.MEGA”dracula2_2；warningshortsoft -2192 行調(diào)用到了兩個(gè)標(biāo)準(zhǔn)單元”INLX1”和”LOGICOL”，但是 netli st 中找不到對(duì)這兩個(gè)標(biāo)準(zhǔn)單元的描述。這個(gè)錯(cuò)誤需要檢查

3、netlist，添加上對(duì)這些標(biāo)準(zhǔn)單元的描述部分。通常標(biāo)準(zhǔn)單元的 netlist 由 foun drycdlspiceWarning: ine 86 in file 06m3/core/xc06a2dl.cdl not d to r global-scope PARAM Warning: ine 148 in file c06m3/core/xc06a2dl.cdl not d to r global- .PARAM le2_2lvstest2.repWarning: Duplicate subckt definition Warning: ine 86 in file 06m3/core/xc

4、06a2dl.cdl not d to r global-scope PARAM Warning: ine 148 in file c06m3/core/xc06a2dl.cdl not d to r global- .PARAM le2_2lvstest2.repWarning: Duplicate subckt definition ine 1642 Warning: Duplicate subckt definition ine 1671 le3 (參見(jiàn)文件“l(fā)vs test3.rep Directconnection n different Port 中兩條標(biāo)記了 label 的 ne

5、t 短路時(shí)，或者不同的 label 標(biāo)記到了同一 net 上時(shí)，出現(xiàn)這種 warning，lvs 中會(huì)忽略掉其中一個(gè) label，將這個(gè) net 定義為另一個(gè) label 的名字，例如這個(gè)例子中這個(gè) net 被定義為”osc32k”，忽略掉了”tclk_control”。這兩個(gè) warning 一般會(huì)同時(shí)出現(xiàn)解決辦法是通過(guò)坐標(biāo)和labellayout中查找short方，或者是label移位的地方。這個(gè)warning會(huì)引起layoutnetli stnet，一定要改掉；file file ing 是由于在 netlist 中重復(fù)定義了”NAND4”和”NOR2”這兩個(gè)標(biāo)準(zhǔn)單元引起，可以修改 ne

6、tlist 解決；如果能確定重復(fù)定義的部分是完warningnetlistmM，mShort circuit - Different names on one Net on layer39 metal3on layer39 metal3Thenameosc32kwasassignedtothele4_1 (參見(jiàn)文件“l(fā)vs_test4_1.repShort circuit - Different names on one Net on layer39 metal3on layer39 metal3Thenameosc32kwasassignedtothele4_1 (參見(jiàn)文件“l(fā)vs_test

7、4_1.repPsubstratetiesoftconnectwarning，這個(gè)例子中 net “chg_out_pP substrate tiegndP net “chg_out_p”P(pán) substrateinSCONNECT-Multiplesourcen ets stNet gnd! iected for stRejected nets: chg_out_ple4_2 (參見(jiàn)文件“l(fā)vs test4 2.rep子和上一個(gè)例子基本一樣，不同的是和 gnd! sconnect 的這個(gè) net 在 layout 上沒(méi)有標(biāo)記 label。”2089”是calibre從lay out 中提取并隨

8、機(jī)命名的 net。解決辦法是在 report 的具體信息中找到net 2089的坐標(biāo)，再在layout中查找該點(diǎn)的net是如何通過(guò)P su bstrate短路到gnd!；inSCONNECT-Multiplesourcen ets stNet gnd! iected for stRejected nets: 2089Net 2LvsInputOutput的信息CIR RULE XC06 Calibre DRC/LVS FileThu May 18 15:44:02 RULEFILE LVSMODE: RULENet 2LvsInputOutput的信息CIR RULE XC06 Calibre

9、 DRC/LVS FileThu May 18 15:44:02 RULEFILE LVSMODE: RULECREATION TIME: CURRENTDIRECTORY: USER NAME:CALIBRE :Wed Jul 13 7:45 PDT 3 Lvs是否匹配最明顯的標(biāo)志：NOT COMPARED, CORRECT 和 NOT COMPARE（vs test1.rep: lvsErrorreport filelvslvsinput # REPORT FILE LAYOUT SOURCE report file，calibre#NOT #CORRECT：layoutnetlist #

10、_#*#*#|# #error#NOT #CORRECT：layoutnetlist #_#*#*#|# #error# # #numbers of nets (see Connectivity 4OBJECTS 信息INITIALNUMBERSOFOBJECTSlayout netlistnetedle9（參見(jiàn)：lvs INITIAL OF e-*:*9*MP (4 66R (3 66D (2 Total INITIALNUMBERSOFOBJECTSlayout netlistnetedle9（參見(jiàn)：lvs INITIAL OF e-*:*9*MP (4 66R (3 66D (2 Tot

11、al OFOBJECTSlayoutnetlist中的net數(shù)目，器件類型和數(shù)目。某些器件被合并或者剔除，從例子中可以看到，netlist(Source)比 Layoutnet，器件數(shù)目則保持一致；le10（參見(jiàn)：lvs NUMBERS OBJECTS AFTER Component Typee-*:(4 29(4 66R (3 66D (2 Report中最重要的部分INCORRECT NETS部分Report 中，該部分分為左右兩列，左邊部分表示 layout 中關(guān)于net*:(4 29(4 66R (3 66D (2 Report中最重要的部分INCORRECT NETS部分Report

12、 中，該部分分為左右兩列，左邊部分表示 layout 中關(guān)于netnetlistnet Open（斷路）：layout 中出現(xiàn)兩個(gè) net 的信息，而 st 中只出現(xiàn)一個(gè) net 的信息。這是典型的斷路錯(cuò)誤。解決辦法netlayoutnetle11（參見(jiàn)：lvs INCORRECT LAYOUTNAM CE 1Net - on net 2089(62.400,35.250) -u_clock_divider/u37/RR0 19074(307.950,38.300)R(RDIFFP3) :neg: :sub:le11，layoutvdd!net 2089net，etdevicelayoutne

13、gsubnet 2089，netlistVDD?。籰e12（INCORRECT LAYOUT SOURCE 1Net le11，layoutvdd!net 2089net，etdevicelayoutnegsubnet 2089，netlistVDD！；le12（INCORRECT LAYOUT SOURCE 1Net net 1543netlist Layoutnetlist不對(duì)應(yīng)的net：layout中某些 devicelayout，schematicle13（參見(jiàn)：lvs 1Netmilarnet*no- on net 510(876.200,1138.300) -osc32k 1907

14、0(908.200,1199.300) g: osc32k s: b: *noarnetnosimilarnetd:2k et；layoutpmos4Drainnet510，ne tlistpmos4Drainosc32k L1_N0layoutg: osc32k s: b: *noarnetnosimilarnetd:2k et；layoutpmos4Drainnet510，ne tlistpmos4Drainosc32k L1_N0layout510 (876.200,1138.300)再對(duì)照schematic找連接錯(cuò)誤的地方le14（參見(jiàn)：lvs *nosimilarnet* - Dev

15、i NTER_11_-on source net 18798(887.100,1203.300)MP(pmos4) S:vdd!(32.800,839.700) D: 5639(887.700,1203.300)B : G:net*nosimilarnet* s: d: b: *nog:DC_COUNTER_11_在 layout 中找不到對(duì)應(yīng)的 net，但是 netlist 中與該 net有關(guān)聯(lián)的devicelayout中有對(duì)應(yīng)，從中找到layout中該dev iceGateINCORRECTPORTSlayoutnetlistinputoutputPORTle15（參見(jiàn)：lvs INCOR

16、RECT LAYOUT SOURCE *missingport6*COMPonnet:le15netlist中出現(xiàn)了COMP這個(gè)INCORRECT LAYOUT SOURCE *missingport6*COMPonnet:le15netlist中出現(xiàn)了COMP這個(gè)端口，但是在layout中7.INCORRECT部分描述layout中和netlist中不對(duì)應(yīng)的devicele16（參見(jiàn)：lvs ECT LAYOUT SOURCE missinginstance7*no similar net *g: VD33(53.750,42.450) 5(212.650,56.500) *d: * VD3

17、3(53.750,42.450) le16netlist中出現(xiàn)在block MPD2中的pmos4M1icedevice* VD33(53.750,42.450) le16netlist中出現(xiàn)在block MPD2中的pmos4M1icedevicePROPERTYERRORS分layoutnetlistdevicelength、rea等le17（參見(jiàn)le17pmos4layoutwidth8um，9LVSPARAMETERS分 d fileLVS o LVS netlist4umPROPERTY 8 w: uw: 4 COMPONENT TYPE COMPONENTSUBTYPE PIN N

18、AME Y_PIN EVDD vdd! VDD3 LVS GROUND ESS VSSA GND! GNDA RECOGNIZE IGNORE SCHECK PORT NOBUILTIN N ALLCAPACITORPINSCOMPONENT TYPE COMPONENTSUBTYPE PIN NAME Y_PIN EVDD vdd! VDD3 LVS GROUND ESS VSSA GND! GNDA RECOGNIZE IGNORE SCHECK PORT NOBUILTIN N ALLCAPACITORPINSSWAPPABLE DISCARD PINS BY DEVICE10.INFO

19、RMATIONANDWARNINGS分：layoutnetlistle19（參見(jiàn)：lvs ION AND e88011913:141160160103Total 3312olayout were layout mos transistors were 14mostransistorsweredeletedby source mos transistors were 11 mos transistors were deleted to parallel88011913:141160160103Total 3312olayout were layout mos transistors were 1

20、4mostransistorsweredeletedby source mos transistors were 11 mos transistors were deleted to parallelreduction. to 3.parallel devicele20（參見(jiàn)：lvs oIsolatedLayout(Layoutnetswhicharenotconnectedtoanyor18(169.800,39.400)19(169.800,151.900)23(15.400,42.050)24(15.400,120.850)26(31.400,114.250)27(45.000,72.050)28(45.000,120.850)29(51.150,36.750)31(51.450,5