Njengomyili wezixhobo zeHardware, umsebenzi kukuphuhlisa i-PCBS ngexesha kunye nohlahlo-lwabiwo mali, kwaye kufuneka bakwazi ukusebenza ngesiqhelo! Kweli nqaku, ndiza kucacisa indlela yokuthatha ingqalelo ekuthengweni kwebhodi yebhodi yebhodi, ukuze iindleko zeBhodi yeSekethe iphantsi ngaphandle kokuchaphazela intsebenzo. Nceda uqiniseke ukuba uninzi lwezi ndlela zilandelayo zinokungafikeleli iimfuno zakho zokwenyani, kodwa ukuba iimeko zivumela, ziyindlela elungileyo yokunciphisa iindleko.
Gcina zonke iintaba zomhlaba (SMT) zelinye icala lebhodi yesekethe
Ukuba kukho indawo eyaneleyo, zonke izinto zeSMT zinokubekwa kwelinye icala leBhodi yeSiphaluka. Ngale ndlela, iBhodi yeSekephethi kufuneka ihambe kuphela kwinkqubo yemveliso ye-SMT kube kanye. Ukuba kukho izinto kumacala omabini eBhodi yeSiphaluka, kufuneka ihambe kabini. Ngokuphelisa i-SMT yesibini ye-SMT, ixesha lokwenza iindleko lingasindiswa.
Khetha iinxalenye ekulula ukuyibuyisela
Xa ukhetha izinto, khetha izinto ekulula ukuzibuyisela. Nangona oku akuyi kugcina naziphi na iindleko zokwenza izinto, nokuba iindawo ezityetyisiweyo ziphuma kwisitokhwe, akukho sitokhwe sokuhlengahlengisa nokuhlengahlengisa ibhodi yesekethe. Njengoko uninzi lweenjineli ziyazi, kuxhomekeke kubo bonke abanomdla wokuphepha ukulungiswa!
Nazi ezinye iingcebiso zokukhetha indawo ezilula zokutshintsha:
Khetha iinxalenye ezinemilinganiselo emiselweyo ukuthintela isidingo sokutshintsha uyilo ngalo lonke ixesha icandelo lingasasebenzi. Ukuba imveliso yokutshintshwa ineenyawo ezifanayo, kufuneka uphinde uyithathe inxenye entsha ukuze ugcwalise!
Ngaphambi kokuba ukhethe izinto, nceda undwendwele ezinye iiwebhusayithi zoMvelisi ukuze ubone ukuba naziphi na izinto ziphawulwe njenge "ObSsolete" okanye "azikhuthazwanga kuyilo olutsha."
Khetha icandelo elinobungakanani be-0402 okanye enkulu
Ukukhetha izinto ezincinci kugcina indawo exabisekileyo yebhodi, kodwa olu khetho loyilo luyinto entsha. Bafuna ixesha elingakumbi kunye nomzamo ukuba ubekwe kwaye ubekwe ngokuchanekileyo. Oku kukhokelela kwiindleko eziphezulu zemveliso.
Injengomtoli odubula utolo kwithagethi olwenziwe ziikubhite ezili-10 ububanzi kwaye ungayibetha ngaphandle kokugxila kakhulu. Abatoli banokudubula ngokuqhubekayo ngaphandle kokuchitha ixesha elininzi kunye namandla. Nangona kunjalo, ukuba ithagethi yakho incitshisiwe ibe zii-intshi ezi-6 kuphela, emva koko umtoli kufuneka ugxile kwaye uchithe ixesha elithile ukuze ubethe ithagethi ngokuchanekileyo. Ke ngoko, iinxalenye ezincinci ze-0402 zifuna ixesha elingakumbi kunye nomzamo wokugqibezela ukufakelwa, okuthetha ukuba iindleko ziya kuba ngaphezulu.
Qonda kwaye ulandele imigangatho yemveliso yomenzi
Landela imigangatho enikezwe ngumenzi. Uya kugcina indleko iphantsi. Iiprojekthi ezintsonkothileyo zihlala zibiza ngaphezulu ukwenza.
Xa uyila iprojekthi, kufuneka uyazi oku kulandelayo:
Sebenzisa i-stack esemgangathweni ngezinto ezisemgangathweni.
Zama ukusebenzisa i-2-4 yePCB.
Gcina ezona zinto zincinci ze-trace / i-Gap kwiSithuba esiPhakathi.
Kulumkele ukongeza iimfuno ezizodwa kangangoko kunokwenzeka.