1. Isisekelo sokusebenza kabusha: Ukuphinda kusetshenzwe kabusha akunayo imibhalo nemithethonqubo yokuklama, okungagunyaziwe ngokuhambisana nezinhlinzeko ezifanele, azikho izivumelwano ezizinikele zenqubo yokuphinda kusebenze kabusha.
2. Isibalo sokusebenza kabusha esivunyelwe kujoyinti ngalinye le-solder: ukusebenza kabusha kuvunyelwe amajoyinti e-solder angalungile, futhi inani lokuphinda lisebenze kabusha kwejoyinti ngalinye le-solder akufanele lidlule izikhathi ezintathu, ngaphandle kwalokho ingxenye ye-solder ilimele.
3. Ukusetshenziswa kwezingxenye ezisusiwe: izingxenye ezisusiwe ngokomthetho akufanele zisetshenziswe futhi, uma udinga ukusebenzisa, kufanele zihambisane nezakhiwo zikagesi zangempela zezingxenye kanye nokuhlolwa kokuhlolwa kokusebenza kokucubungula, ukuhlangabezana nezidingo ngaphambi kokuvumela ukufakwa.
4. Inombolo yokuchithwa kwephedi ngayinye: iphedi ngayinye ephrintiwe kufanele ibe umsebenzi wokudiliza kuphela (okungukuthi, ukuvumela kuphela ukushintshwa okukodwa kwezingxenye), inhlanganisela ye-solder efanelekile yenhlanganisela ye-intermetallic (IMC) ukujiya ka-1.5 ukuya ku-3.5µm, ukujiya kuzokhula ngemva kokuncibilika, kuze kufike ku-50µm, ilunga le-solder liba brittle, amandla okushisela ayancipha, kuba nezingozi ezingathi sína zokwethembeka ngaphansi kwezimo zokudlidliza;futhi ukuncibilikisa i-IMC kudinga izinga lokushisa eliphakeme, ngaphandle kwalokho akwenzeki ukususa i-IMC.Isendlalelo sethusi ekuphumeni kwe- through-hole yiyona thinnest, futhi i-pad ijwayele ukuphuka ukusuka lapha ngemva kokuncibilika;ngokunwebeka okushisayo kwe-axis ye-Z, ungqimba lwethusi luyawohloka, kanye nephedi iyahlukana ngenxa yokuvinjwa kwejoyinti le-lead-tin solder.Ikesi elingenamthofu lizodonsa lonke iphedi: I-PCB ngenxa ye-fiber yengilazi ne-epoxy resin enomusi wamanzi, ngemva kokushisa kokushisa: ukushisela okuningi, iphedi kulula ukuyibopha, kanye nokuhlukaniswa kwe-substrate.
5. I-Surface mount kanye nokuhlanganiswa okuxubile kwe-PCBA ngemuva kwezidingo zokukhotha nokuhlanekezela kokushisela: ukukhweza okungaphezulu nokuhlanganiswa kokufakwa kwe-PCBA okuxubile ngemuva kokukhothama kokushisela nokuhlanekezela okungaphansi kuka-0.75% wezidingo
6. Isamba senani lokulungiswa komhlangano we-PCB: inani eliphelele lokulungiswa komhlangano we-PCB lilinganiselwe kwabayisithupha, ukusebenzela kabusha okuningi kakhulu nokuguqulwa kuthinta ukwethembeka.
Isikhathi sokuthumela: Sep-23-2022