Bubuphi ubomi beebhodi zeesekethe eziguquguqukayo?

Intshayelelo:

Kule bhlog yebhlog, siza kujonga ngakumbi kubomi bePCB ebhetyebhetye, izinto zayo, kunye neendlela zokuqinisekisa ukusebenza kakuhle kumjikelo wayo wonke wobomi.

Ii-Flex PCBs, ezikwabizwa ngokuba ziibhodi zesekethe eziguquguqukayo eziprintiweyo, zifumene ukuthandwa kumashishini ahlukeneyo ngenxa yokuguquguquka kwazo kunye nokukwazi ukumelana nokugoba kunye nokujija. Ezi zijikelezo zisetyenziswa ngokubanzi kwizixhobo zombane ezinje ngee-smartphones, itekhnoloji enxitywayo, izixhobo zonyango, kunye nezicelo zeemoto. Nangona kunjalo, ngaphandle kokuthandwa okunyukayo kwee-PCB eziguquguqukayo, abantu abaninzi abakaqondi ngobomi beshelufu yee-PCB eziguquguqukayo kunye nefuthe labo ekuthembekeni kwemveliso.

Ubomi beshelufu ye-PCB eguquguqukayo lixesha apho isekethe igcina umbane kunye noomatshini abalindelekileyo

iipropati xa zigcinwe ngokufanelekileyo. Ichaphazeleka kwizinto ezahlukeneyo, kubandakanywa ukubunjwa kwezinto eziphathekayo, ukuvelisa

iinkqubo, iimeko zokugcina, izinto zokusingqongileyo, ukudibanisa kunye nexesha lokuhlanganisa.

Enye yezinto eziphambili ezichaphazela ubomi beshelufu yeePCB eziguquguqukayo kukukhethwa kwezinto eziphathekayo.IiPCB eziguquguqukayo ziqhele ukwenziwa ngefilimu yepolyimide okanye ipolyester kwaye zibonelela ngokuguquguquka kunye nokuqina. Ezi zixhobo zinika ukuxhathisa okulungileyo kubushushu, ukufuma, kunye neekhemikhali, ezivumela iisekethe ukuba zisebenze kwiindawo ezinzima. Nangona kunjalo, ngokuhamba kwexesha, ezi zixhobo zinokuthoba okanye zifunxe umswakama, zibangele ukuthotywa kokusebenza okanye ukusilela kwesekethe. Ke ngoko, kubalulekile ukukhetha izixhobo ezikumgangatho ophezulu ezichanekileyo zokuqinisekisa ubomi obude beshelufu.

Inkqubo yokwenziwa kwemveliso ikwadlala indima ebalulekileyo ekumiseleni ixesha leshelufu yeePCB ezibhetyebhetye.Ukuphatha ngendlela eyiyo, ugcino kunye neendlela zokuhlanganisa kufuneka zilandelwe ukuthintela ukungcoliseka, ukufunxa ukufuma okanye umonakalo ngexesha lemveliso. Nakuphi na ukutenxa kwizikhokelo zokuvelisa ezicetyiswayo kuya kuphazamisa ukuthembeka kwesekethe kunye nokunciphisa ubomi bayo beshelufu. Abavelisi kufuneka babambelele kwimigangatho yoshishino kwaye bagcine amanyathelo angqongqo olawulo lomgangatho ukuze kuqinisekiswe ubomi obude beePCB eziguquguqukayo.

Iimeko zokugcina zichaphazela kakhulu ubomi beshelufu yeePCB eziguquguqukayo.Ezi sekethe kufuneka zigcinwe kwindawo elawulwayo ngaphandle kokufuma okugqithisileyo, ukuguquguquka kobushushu, kunye nokukhanya kwelanga. Ukufuma kunokungena kwisekethe ngemiphetho kunye ne-vias, kubangele i-delamination okanye i-corrosion ye-conductive traces. Ukushisa okuphezulu kukhawulezisa inkqubo yokuguga kunye nokunciphisa izinto eziphathekayo. Ke ngoko, kucetyiswa ukuba kugcinwe ii-PCB eziguquguqukayo kwiingxowa ze-polyethylene ezitywiniweyo ezineepakethe ze-desiccant okanye kwizikhongozeli ezitywinwe nge-vacuum ukunciphisa ukufunxa komswakama.

Imiba yokusingqongileyo efana nokungcangcazela, ukugoba kunye nokuvezwa kweekhemikhali nako kunokuchaphazela ubomi beshelufu beePCB eziguquguqukayo.Iisekethe eziguquguqukayo zenzelwe ukujamelana nokugoba ngokuphindaphindiweyo okanye ukujija, kodwa uxinzelelo olugqithisileyo lomatshini lunokubangela ukuqhekeka okanye ukuphuka kwimizila okanye ukugquma. Ukongeza, ukuvezwa kweekhemikhali ezitshabalalisayo okanye iigesi kungonakalisa izixhobo zesekethe kwaye kuphazamise ukusebenza kwazo. Ngoko ke, iimeko zokusebenza ezilindelekileyo kufuneka ziqwalaselwe kwaye amanyathelo afanelekileyo okukhusela, afana ne-conformal coating okanye i-encapsulation, kufuneka ithathwe ukunyusa ukuqina kwesekethe kunye nokwandisa ubomi bayo beshelufu.

Ukuqinisekisa ukuba ii-PCB ezibhetyebhetye zisebenza ngokugqibeleleyo kubomi bazo bonke beshelufa, uhlolo oluthe gqolo novavanyo luyafuneka.Ukuhlolwa rhoqo kunokuchonga naziphi na iimpawu zokuthotywa, ezifana nokuguqulwa kombala, ukuchithwa, okanye utshintsho ekusebenzeni kombane. Ukongeza, uvavanyo olusebenzayo lunokuvavanya ukusebenza kwesekethe phantsi kweemeko zokusebenza ezifaniswayo, ukuvumela ukuba iingxaki ezinokuthi zifunyanwe kwaye zilungiswe ngaphambi kokuba zikhokelele ekungaphumeleli ngokupheleleyo. Ukwenza olu mvavanyo ngezithuba ezichaziweyo kunceda ukwandisa ubomi beshelufu ye-PCB ebhetyebhetye kwaye ithintele ukusilela okungalindelekanga.

Ukwandisa ubomi beshelufu yeePCB eziguquguqukayo, indibano yePCB idlala indima ebalulekileyo.Indibano yePCB ibhekisa kwinkqubo yokunyuswa kwamalungu e-elektroniki kwiPCB. Ubuchule bokudibanisa obufanelekileyo buqinisekisa ukuba amacandelo aqhotyoshelwe ngokukhuselekileyo kwi-PCB kwaye i-solder joints ithembekile.

Xa kufikwa ekwandiseni ubomi beshelufu yeePCB, ixesha lendibano emva kokupakishwa yinto ebalulekileyo.I-PCB kufuneka idityaniswe ngexesha elifanelekileyo emva kokupakishwa. Ukugcinwa kwexesha elide kweePCB ezipakishiweyo kunokubangela ukuthotywa kwezinto kunye namacandelo, oko kuchaphazela ubomi beshelufu.

Ukubaluleka kobomi beshelufu ye-PCB :

PCB ubomi kwishelufu kubalulekile ngenxa yezizathu ezininzi. Okokuqala, ukusebenzisa ii-PCB ezidlulileyo kubomi bazo beshelufa kunokubangela imiba yokusebenza okanye iintsilelo.Iipropati zombane ezifana ne-conductivity kunye ne-impedance inokuchaphazeleka, ibangele ukusilela kwesiphaluka. Iimpawu zomatshini, ezifana nokuguquguquka okanye ukuqina, nazo ziyancipha ngokuhamba kwexesha.

Okwesibini, izinto zokulawula kunye namacandelo ukwandisa ubomi beshelufu ye-PCB kubalulekile ekusebenzeni kweendleko.Ngokulawula kakuhle ubomi beshelufu, abavelisi banokuphepha inkcitho kunye neendleko ezingeyomfuneko ezinxulumene nokusebenzisa ii-PCB eziphelelwe lixesha. Oku kubaluleke kakhulu kumashishini aneemfuno eziphezulu ze-PCB, njengoko la mashishini ehlala enezixa ezikhulu zeePCB.

Ukuze kwandiswe ubomi bogcino beePCB eziguquguqukayo, kufuneka kuthathwe amanyathelo okhuseleko.

Okokuqala, iiPCB kufuneka zigcinwe kwindawo elawulwayo enobushushu obufanelekileyo kunye nokufuma.Amaqondo obushushu aphezulu kunye nokufuma kunokukhawulezisa ukuthotywa kwezinto kunye namacandelo.

Okwesibini, ukupakishwa okufanelekileyo kubalulekile ekukhuseleni i-PCB ngexesha lokugcina.Zifanele zipakishwe kwi-package-proof kunye ne-anti-static ukukhusela nawuphi na umonakalo okanye ukungcola. Ukongeza, ukumakishwa okuchanekileyo kwemihla yemveliso kunye nemihla yokuphelelwa yisikhathi kuyimfuneko kulawulo olusebenzayo lwe-inventri.

Izinto ezininzi zinokuchaphazela ubomi beshelufu beePCB.

Ukuvezwa kukufuma, ukufuma kunye neegesi ezidliwayo kunokubangela ukuwohloka okukhawulezileyo.Ukushisa okuphezulu kunokugxininisa izinto kunye nokuchaphazela iimpawu zabo. Ngoko ke, kubalulekile ukuphatha nokugcina iiPCB ngononophelo ukunciphisa ezi zinto.

Ukusebenzisa ii-PCB eziphelelwe lixesha kunokubeka iingozi ezinkulu kunye nemingcipheko.Uqhagamshelwano lwesekethe olungathembekanga lunokubangela ukuba izixhobo ze-elektroniki zingasebenzi kakuhle, ezichaphazela ukhuseleko kunye nokusebenza. Kwizicelo ezibalulekileyo ezifana nezixhobo zonyango okanye iinkqubo zeemoto, iziphumo zokusebenzisa ii-PCB eziphelelwe lixesha zinokuba nzima.

Ukushwankathela

Ubomi be-PCB eguquguqukayo buchatshazelwa zizinto ezininzi, kubandakanywa ukubunjwa kwezinto eziphathekayo, inkqubo yokuvelisa, iimeko zokugcina, izinto zokusingqongileyo kunye nendibano.Ngokukhetha izinto ezisemgangathweni, ngokulandela iindlela ezifanelekileyo zokuvelisa, ukugcina iisekethe kwindawo elawulwayo kunye nokuqwalasela iimeko zokusebenza ezilindelekileyo, unokwandisa ixesha leshelufu leePCB eziguquguqukayo kunye nokuqinisekisa ukusebenza okuthembekileyo kwexesha elide. Ukuhlolwa rhoqo kunye nokuvavanya kwakhona kudlala indima ebalulekileyo ekugcineni ingqibelelo yesiphaluka kunye nokuchonga naziphi na iingxaki ezinokubakho. Ukuqonda ubomi beshelufu yee-PCB eziguquguqukayo kubalulekile kubavelisi, abayili kunye nabasebenzisi bokugqibela ukukhulisa ukuthembeka kwemveliso kunye nokuphila ixesha elide.
Ubomi beshelufa yeePCB eziguquguqukayo yingqwalasela ebalulekileyo kubavelisi kunye nabasebenzisi. Ukuqonda izinto ezichaphazela ubomi beshelufu kunye nokuphumeza ukugcinwa okuchanekileyo kunye nezenzo zokuhlanganisa kunganceda ukwandisa ubomi be-PCB yakho. Ngokulawula ngokufanelekileyo izixhobo kunye namacandelo, abavelisi banokuqinisekisa ukusebenza kakuhle, ukuphumelela kweendleko kunye nokhuseleko. Qiniseka ukuba ukhangela kumvelisi okanye umboneleli ngolwazi oluthile malunga bhetyebhetye ubomi kwishelufu PCB.