Olunye, uvavanyo lombane

PCB kwinkqubo yemveliso, kunzima ukunqanda isekethe emfutshane, isekethe evulekileyo kunye nokuvuza okubangelwa zizinto zangaphandle, ezinje ngeziphene zombane, ezidityaniswa nokuqhubeka kokuya kubuninzi bePCB, isithuba esihle kunye nokudaleka kwamanqanaba amaninzi, kunye nokusilela ngexesha elifanelekileyo ukucoca ipleyiti embi, kwaye mayiyeke ingene kwinkqubo, kunyanzelekile ukuba ibangele inkcitho eninzi, ke ukongeza ekuphuculeni inkqubo yolawulo, Ukuphuculwa kweendlela zokuvavanya kunokubonelela abavelisi bePCB ngezisombululo zokunciphisa amaxabiso ezinto kunye nokuphucula imveliso.

Kwinkqubo yokuveliswa kweemveliso ze-elektroniki, ilahleko yendleko ebangelwe ziziphene ineedigri ezahlukeneyo kwinqanaba ngalinye, kwaye kwangaphambi kokufunyanwa, zehlisa iindleko zokulungisa. Umgaqo we-10 “s uqhele ukusetyenziswa ekuqikeleleni indleko zokulungisa xa i-PCB ifunyenwe inesiphene kumanqanaba ahlukeneyo enkqubo. Umzekelo, emva kokugqitywa kwemveliso yeplate engenanto, ukuba ibhodi kwisekethe inokufunyanwa ngexesha lokwenyani, ihlala ifuna ukulungiswa kuphela, okanye ilahleko yesitya esingenanto; Nangona kunjalo, ukuba isekethe ayifumaneki, ibhodi ithunyelwa kwindawo esezantsi ukugcwalisa ukufakwa kwamalungu, kunye neziko lesithando somlilo kunye nokulungiswa kwe-IR, kodwa isekethe ifunyenwe ngeli xesha, isihlanganisi esezantsi esiza kubuza inkampani engenanto yebhodi ukuhlawulela iindleko zezahlulo, umrhumo onzima womzi mveliso, umrhumo wokuhlola, njl. Ukuba lilishwa ngakumbi, ibhodi enesiphene ayikafumaneki kuvavanyo lweshishini lendibano, kodwa kwinkqubo iyonke yeemveliso ezigqityiweyo, ezinje ngeekhompyuter, iifowuni eziphathwayo, iinxalenye zemoto, njalo njalo, kuvavanyo lokufumana ilahleko, ungabinanto kwibhodi engenanto kwangexesha izihlandlo ezilikhulu, izihlandlo eziliwaka, okanye nangaphezulu. Ke, ukuvavanywa kombane kubavelisi be-PCB konke malunga nokufunyanwa kwangoko kweebhodi ezineziphene.

Umsebenzisi osezantsi uhlala efuna ukuba umenzi wePCB enze iipesenti ezili-100 zovavanyo lombane kwaye ke uyavumelana nomenzi wePCB kwiinkcukacha zovavanyo kunye neendlela, ke omabini la maqela aya kuqala achaze ngokucacileyo oku kulandelayo:

1. Uvavanyo lwedatha kunye nefomathi

2, iimeko zovavanyo, ezinje ngevolthi, ngoku, ubushushu kunye nokunxibelelana

3. Indlela yokuvelisa kunye nokukhethwa kwezixhobo

4. Isahluko sovavanyo

5, ukulungisa iinkcukacha

Kukho amanqanaba amathathu kwimveliso ye-PCB ekufuneka ivavanyiwe:

1. Emva kokutsala umaleko wangaphakathi

2. Emva kokufaka isekethe yangaphandle

3, imveliso egqityiweyo

Inqanaba ngalinye liya kuhlala linamaxesha ama-2 ~ 3 ka-100% kuvavanyo, cofa ipleyiti embi yokuqhubekeka okunzima. Ke ngoko, isikhululo sovavanyo ikwangoyena mthombo uqokelelweyo wedatha yokuhlalutya amanqaku engxaki yenkqubo. Ngokweziphumo zeenkcukacha-manani, unokufumana ipesenti yesekethe evulekileyo, isekethe emfutshane kunye nezinye iingxaki zokugquma, emva koko kuvavanye emva kokuphinda kwenziwe. Emva kokuhlengahlengisa idatha, sebenzisa indlela yolawulo lomgangatho ukufumana ingcambu yengxaki kwaye uyisombulule.

Zimbini, iindlela zokulinganisa zombane kunye nezixhobo

Iindlela zovavanyo zombane zibandakanya: I-Grid ezinikezelweyo, i-Universal Grid, i-Flying Probe, i-e-beam, ilaphu lokuqhuba, amandla kunye ne-ATG-scan MAN zizixhobo ezintathu ezisetyenziswa ngokuxhaphakileyo. Bangumatshini wovavanyo okhethekileyo, umatshini wovavanyo ngokubanzi kunye nomatshini wovavanyo lwenaliti endizayo. Ukuze uyiqonde ngcono imisebenzi yesixhobo ngasinye, amanqaku ezi zixhobo zintathu ziphambili athelekiswa apha ngezantsi.

1. Uvavanyo olunikezelweyo

Izinto ezilungisiweyo (ezinje ngezikhonkwane kunye neefowuni ezisetyenziselwa ukuvavanya iibhodi zesekethe) zisebenza kuphela ngenombolo yezinto eziphathekayo. Iibhodi ezinamanani ezinto ezahlukileyo azinakuvavanywa ziphinde zisetyenziswe. Ngokwamanqaku ovavanyo, iphaneli enye inokuvavanywa ngaphakathi kwamanqaku ayi-10,240, kwaye omabini amacala ngaphakathi kwamanqaku ayi-8,192. Ngokokuxinana kovavanyo, ngenxa yobunzima bentloko yesiphumo, kufaneleke ngakumbi kwiibhodi ezingaphezulu kwenqaku.

2. Uvavanyo lweGridi yeHlabathi

Umgaqo osisiseko wovavanyo lokusetyenziswa ngokubanzi kukuba ubeko lweesekethe ze-PCB ziyilelwe ngokweGrid. Ngokubanzi, oko kubizwa ngokuba kukuxinana komgca kubhekisa kumgama weGridi, ebonakaliswa yiPitch (ngamanye amaxesha inokuboniswa ngoxinano lomngxunya), kunye novavanyo lokusetyenziswa ngokubanzi lusekwe kulo mgaqo. Ngokwesikhundla somngxunya, i-substrate ye-G10 isetyenziswa njengeMask. Kuphela kwindawo ekuyo umngxuma, iprojekti inokugqitha kuMaski ngomlinganiso wombane, ke ukwenziwa kwemidlalo kulula kwaye kuyakhawuleza, kwaye iprojekhthi inokusetyenziswa kwakhona. I-Grid esemgangathweni esisigxina itreyi enkulu yenaliti enamanqaku amaninzi okulinganisa inokusetyenziselwa ukuvelisa itreyi yenaliti yokuvavanywa enokushenxiswa ngokwamanani eempahla ezahlukeneyo. Ngethuba nje ukuba itreyi yenaliti eshukumayo itshintshiwe ngexesha lokuveliswa kobunzima, inokusetyenziselwa uvavanyo lwemveliso yobuninzi bamanani ahlukeneyo ezinto. Ukongeza, ukuze kuqinisekiswe ukuba inkqubo yeesekethe yebhodi ye-PCB egqityiweyo ayiphazanyiswanga, kuyafuneka ukuba kwenziwe uvavanyo oluVulekileyo / olufutshane lombane ebhodini kunye nepleyiti yenqaku lendawo ethile yoqhakamshelwano kumatshini wokulinganisa umbane ojolise kwinjongo enevolthi ephezulu ( ezinje nge250V) iindawo zokulinganisa ezininzi. Olu hlobo lomatshini we-TesTIng lubizwa ngokuba yi “AutomaTIc TesTIng Equipment” (ATE).

Amanqaku ovavanyo okusetyenziswa ngokubanzi ahlala ngaphezulu kwamanqaku ayi-10,000, kwaye uxinano lovavanyo lubizwa ngokuba luvavanyo lwegridi. Ukuba isetyenziswa kwiibhodi ezixineneyo, isithuba sisondele kakhulu, kwaye sahlulwe kuyilo lwegridi, ke lolokuvavanywa ngaphandle kwegridi, kwaye isixhobo kufuneka siyilwe ngokukodwa. Ukuxinana kovavanyo lohlobo oluqhelekileyo kunokufikelela kwiQFP.

3. Uvavanyo lwe-Flying Probe

Umgaqo wovavanyo lwenaliti yokubhabha ulula kakhulu. Kuphela zimbini iinkqubo ezifunekayo zokuhambisa u-x, y no-Z ukuvavanya iziphelo ezibini zomgca ngamnye nganye nganye, ke akukho sidingo sokwenza enye into ebizayo. Nangona kunjalo, ngenxa yovavanyo lokugqibela, isantya sokulinganisa sicotha kakhulu, malunga ne-10 ~ 40 yamanqaku / we-SEC, ke kufanelekile ukuba iisampulu kunye nemveliso yevolumu encinci; Ngokumalunga nokuxinana kovavanyo, uvavanyo lwenaliti ebhabha lunokusetyenziswa kwiipleyiti ezixineneyo kakhulu (), ezinje ngeMCM.