IZixhobo zeBhodi yeSekethe eShicileleyo kunye noLwakhiwo

Kule post yebhlog, siza kuphonononga izixhobo ezisetyenziswa kwiiPCBs eziguquguqukayo kwaye singene kwinkqubo yokwakha, sityhila itekhnoloji engakholelekiyo emva kwezi bhodi zesekethe eziguquguqukayo.

Iibhodi zesekethe eziguquguqukayo eziprintiweyo (PCBs) ziye zaguqula ishishini le-elektroniki ngokubonelela ngenye indlela eguquguqukayo kwiiPCB zemveli ezingqongqo.Ukwakhiwa kwayo okuyingqayizivele kunye nezixhobo ziphucula ukuguquguquka koyilo, ukuthembeka kunye nokusebenza.

Izinto ezisetyenziswa kwiibhodi zeesekethe eziguquguqukayo eziprintiweyo

Ii-PCB eziguquguqukayo zenziwe ngokudityaniswa kwezinto ezahlukeneyo ukwandisa ukuguquguquka kunye nokuqina.Makhe sijonge ngakumbi kwezinye zezinto eziphambili ezisetyenzisiweyo kulwakhiwo lwayo:

1. Izinto ezisisiseko:
Isiseko sayo nayiphi na i-PCB eguquguqukayo yimathiriyeli ye-substrate.Izinto ezisetyenziswa ngokuqhelekileyo ziquka i-polyimide (PI), i-polymer eguquguqukayo kakhulu kunye neqondo lokushisa.I-PI inamandla amakhulu omatshini, ukuxhathisa imichiza kunye neempawu zokugquma.Enye into ethandwayo ye-substrate i-polyester (PET), enika ukuguquguquka kwixabiso eliphantsi.Ezi zixhobo zivumela iibhodi zeesekethe ukuba zigobe, zijike kwaye zilungelelanise iimilo ezahlukeneyo kunye nobukhulu.

2. Izinto zokuqhuba:
Ukuze kusungulwe uxhulumaniso lombane phakathi kwezinto ezijikelezayo ezahlukeneyo, izinto eziqhubayo ezifana nobhedu zisetyenziswa.I-Copper yi-conductor yombane ebalaseleyo kunye nokuguquguquka okulungileyo kwaye ifanelekile ukusetyenziswa kwiibhodi zesekethe eziguquguqukayo eziprintiweyo.I-foil yobhedu encinci i-laminated kwi-substrate ukuze yenze iisekethe kunye nemikhondo efunekayo yokudibanisa umbane.

3. Izinto zokugubungela:
Izinto zokwaleka zisebenza njengomaleko okhuselayo kwi-PCB eguquguqukayo.Babonelela ngokugquma, ukukhuselwa koomatshini, kunye nokuchasana nezinto ezisingqongileyo ezifana nokufuma, uthuli, kunye neekhemikhali.Ukwaleka kwePolyimide kusetyenziswa kakhulu ngenxa yokuzinza kobushushu obubalaseleyo, ukuguquguquka kunye nokuqina.

Itekhnoloji yokwakha yeebhodi zeesekethe eziguquguqukayo eziprintiweyo

Inkqubo yokwakha yePCB ebhetyebhetye ibandakanya amanyathelo ahlukeneyo.Masiphonononge inqanaba ngalinye ngokweenkcukacha:

1. Ukulungiswa kweSubstrate:
Inyathelo lokuqala ekwakheni PCB bhetyebhetye kukulungisa imathiriyeli substrate.Izinto ezikhethiweyo ze-substrate, nokuba i-polyimide okanye i-polyester, iphathwa ukuze ikhulise uburhabaxa bayo kunye neempawu zokubambelela.Olu nyango luququzelela ukudibanisa kwezinto eziphathekayo kwi-substrate.

2. Uyilo lwesekethe kunye noyilo:
Emva koko, sebenzisa isoftware yoyilo oluncediswa yikhompyuter (CAD) ukwenza uyilo lwesekethe kunye noyilo.Uyilo lumisela ukubekwa kwamacandelo e-elektroniki kwibhodi yesekethe kunye nendlela yokudibanisa umbane.Eli nyathelo lifuna uqwalaselo olucokisekileyo lwemiba efana nokuthembeka komqondiso, ukuhanjiswa kwamandla, kunye nolawulo lwe-thermal.

3. Ukurhweba kunye nokucwenga:
Emva kokuba uyilo lwesekethe lugqityiwe, inkqubo ye-etching yenziwa kwi-substrate.Sebenzisa isisombululo sekhemikhali ngokukhetha ukususa ubhedu obuninzi, ushiye imikhondo yesekethe efunwayo kunye neepads.Emva kwe-etching, ibhodi yesekethe ifakwe ngomgca omncinci wobhedu, ophucula indlela yokuqhubela phambili kunye nokuqinisekisa ukuxhamla kombane ozinzileyo.

4. Imaski yesolder kunye noshicilelo lwesikrini:
Imaski ye-Solder ngumaleko okhuselayo osetyenziswa kumphezulu webhodi yesekethe.Ikhusela umkhondo wobhedu kwi-oxidation, i-solder bridging, kunye nezinye iimpembelelo zangaphandle.Ithi ke iprintwe isikrini ukongeza amanqaku, njengeeleyibhile zecandelo okanye izikhombisi zepolarity, ukulungiselela ukudibanisa kunye nokusombulula ingxaki.

5. Ufakelo lwamacandelo kunye nokudibanisa:
Izinto ze-elektroniki zixhonywe kwii-PCB eziguquguqukayo kusetyenziswa oomatshini bokunyuswa kobuchwephesha obuzisebenzelayo (i-SMT) okanye ubuchule bokuhlanganisa ngesandla.Solder amacandelo kwiipads usebenzisa ubuchule be-soldering njenge-reflow okanye i-wave soldering.Nika ingqalelo ngononophelo ukuqinisekisa ukuba amacandelo alungelelaniswe ngokufanelekileyo kwaye aqhagamshelwe ngokukhuselekileyo.

6. Uvavanyo kunye nokuhlolwa:
Nje ukuba ibhodi yesekethe idityaniswe, ihamba ngovavanyo olungqongqo kunye nenkqubo yokuhlola ukuqinisekisa ukusebenza kwayo kunye nomgangatho.Yenza iimvavanyo ezizenzekelayo ezifana noVavanyo lweSekethe (ICT) okanye uHlolo oluSebenzayo lwe-Optical Inspection (AOI) ukuze kubonwe naziphi na iziphene ezinokuthi zibe kho okanye uqhagamshelwano olungachanekanga.Olu vavanyo lunceda ukuchonga kunye nokulungisa iingxaki ngaphambi kokuba imveliso yokugqibela ithunyelwe.

IiPCB eziguquguqukayo zibe lukhetho lokuqala lwezicelo apho izithintelo zendawo, ukunciphisa ubunzima kunye nokuguquguquka kubaluleke kakhulu.Izixhobo zayo ezizodwa kunye nobuchule bokwakha buvumela ukulungelelanisa, ukunciphisa ubungakanani kunye nokusebenza okuphuculweyo.Ukusuka kwishishini le-aerospace ukuya kwizixhobo zonyango kunye ne-elektroniki yabathengi, ii-PCB eziguquguqukayo zishiye uphawu lwazo kwiinkalo ezahlukeneyo.

Isishwankathelo

IiPCB eziguquguqukayo zibonelela ngoluhlu lweenzuzo ngenxa yolwakhiwo kunye nemathiriyeli.Ukudibaniswa kwezinto ezisisiseko, izinto eziphathekayo kunye nesigqubuthelo sokukhusela siqinisekisa ukuguquguquka, ukuqina kunye nokuthembeka.Ukuqonda inkqubo yokwakhiwa kweebhodi zesekethe eziguquguqukayo eziprintiweyo kusinika ukuqonda kwithekhnoloji engakholelekiyo emva kwezi bhodi zesekethe eziguquguqukayo.Njengoko itekhnoloji iqhubela phambili, iiPCB eziguquguqukayo ziya kuqhubeka ukudlala indima ephambili ekubumbeni ikamva loshishino lombane.