Kwizixhobo ze-elektroniki, inani elithile lobushushu liveliswa ngexesha lokusebenza, ukuze amaqondo obushushu angaphakathi okuphumelela anyuka ngokukhawuleza. Ukuba ubushushu abukhali ngexesha, izixhobo ziya kuqhubeka nokuphakama, kwaye ifowuni iyasilela ngenxa yokugxeka. Ukuthembeka kwesixhobo se-elektroniki se-elektroniki kuya kuncipha.
Ke ngoko, kubaluleke kakhulu ukuqhuba unyango oluhle lobushushu ubushushu kwibhodi yesekethe. Ukuhlanjwa kobushushu beBhodi yeSekethe yePCB yeyona nto ibaluleke kakhulu, yintoni ubuchule bokwenza ubushushu beBhodi yeSekethe yePCB ye-PCB, masixoxe kunye ngezantsi.
Ukuchithwa kobushushu ngebhodi ye-PCB ngokwakho Iibhodi zePCB ze-PCB ziyi-Copper Clop / i-Epoxy Glass Claut okanye i-Epoxy Glass Reations okanye iibhodi ezincinci zephepha le-phedis zisetyenziswa.
Nangona la matyala aneepropathi ezigqwesileyo kunye neepropathi zokusebenza, anezinto ezimbi zobushushu. Njengendlela yokuphumelela kobushushu kwiindawo ezinobushushu, phantse kungenakwenzeka ukuba kulindelwe ubushushu kwi-PCB ukwenza ubushushu, kodwa kukwenza ubushushu bubusiseko umoya ojikelezileyo.
Nangona kunjalo, njengoko iimveliso ze-elektroniki zingene kwixesha lokulinganisa amacandelo, indawo yokuphakama okungathandekiyo, kunye nendibano yokufudumeza, akwanelanga ukuxhomekeka kumphezulu wendawo encinci yokufumana ubushushu.
Kwangelo xesha, ngenxa yokusetyenziswa okukhulu kweNtaba yeNtaba yeNqanaba enjenge-QFP kunye ne-BGA, ubushushu obuveliswe ngamacandelo budluliselwe kwibhodi ye-PCB ngenani elikhulu. Ke, eyona ndlela ilungileyo yokusombulula ukungasebenzi kobushushu kukuphucula amandla okwenza ubushushu kwe-PCB ngokwalo eyokuqhagamshelana ngqo ne
Ubushushu obuqhelekileyo bokungena. Iqhutywa okanye i-bid.
Ubushushu Viablow bubushushu nge
Ukuvezwa kobhedu ngasemva kwe-IC kunciphisa ukungaxhathisi be-shirmal phakathi kobhedu nomoya
Ubume be-PCB
Izixhobo ezibuthathaka ze-shirmal zibekwe kwindawo yomoya ebandayo.
Isixhobo sokufumana amaqondo okuchonga sibekwe kwindawo eshushu kakhulu.
Izixhobo kwiBhodi enye eprintiweyo kufuneka zilungiselelwe kangangoko kunokwenzeka ngokwexabiso labo lololoritic kunye nenqanaba lokuchithwa kobushushu. Izixhobo ezinexabiso eliphantsi le-caloritific okanye ukumelana nobushushu obungalunganga (ezinje ngohambo oluncinci, iisekethe ezihlanganisiweyo ezincinci, amachaphaza amachaphaza amancinci, njl. Njl.) Kufuneka ibekwe kwindawo yokupholisa umoya. Ukuhamba okungaphezulu (emnyango), izixhobo ezinobushushu obukhulu okanye ukumelana nobushushu (iisekethe ezihlanganisiweyo, iisekethe ezihlanganisiweyo ezinkulu, njl.).
Kwindlela ethe tyaba, izixhobo zombane eziphezulu zibekwe kufutshane nomda weBhodi eprintiweyo kangangoko kunokwenzeka ukufutshane nendlela yokutshintshwa kobushushu; Kwindlela ethe nkqo, izixhobo zombane eziphezulu zibekwe kufutshane neBhodi eprintiweyo kangangoko ukunciphisa ifuthe lezi zixhobo kwiqondo lobushushu bezinye izixhobo.
Ukuhlanjwa kobushushu kwiBhodi ePriple kwizixhobo ikakhulu kuxhomekeke ekuhambeni komoya, ke indlela yokuhamba komoya kufuneka ifundwe ngoyilo, kwaye iBhodi yeSekethe iprintiweyo kufuneka ilungiswe ngokufanelekileyo.
Xa umoya uyahamba, ihlala idla ngokuhamba kwiindawo ezinenkcaso, ke xa kusenziwa izixhobo kwiBhodi yeSiphako eprintiweyo, kuphephe ukushiya i-airpace enkulu kwindawo ethile. Uqwalaselo lweebhodi zesekethe ezininzi eziprintiweyo kulo matshini uphela kufuneka unikele ingqalelo kwingxaki enye.
Isixhobo esinobuthathaka seqondo lobushushu sibekwe kakuhle kwindawo esezantsi yobushushu (njengezantsi kwesixhobo). Ungaze uyibeke ngqo ngaphezulu kwesixhobo sokufudumeza. Kungcono kakhulu ukuba uxhase izixhobo ezininzi kwindiza ethe tyaba.
Izixhobo ezinelona xabiso liphezulu kunye nokunikezelwa kwe-tshiswe zicwangciswe kufutshane nesona sikhundla sibalaseleyo sokuhlaselwa kobushushu. Sukubeka izixhobo zokufudumeza eziphezulu kwiimbombo kunye nemiphetho yedijithali yeBhodi eprintiweyo, ngaphandle kokuba i-suft senk icwangciswe kufutshane nayo.
Xa uyila umkhuseli wombane, khetha isixhobo esikhulu kangangoko unakho, kwaye wenze indawo eyaneleyo yokutya ubushushu xa uhlengahlengisa ubume beBhodi eprintiweyo.
Icandelo elicetyiswayo
