Njengomklami wezingxenyekazi zekhompuyutha, umsebenzi uwukuthuthukisa ama-PCB ngesikhathi nangaphakathi kwesabelomali, futhi kudingeka akwazi ukusebenza ngendlela evamile! Kulesi sihloko, ngizochaza indlela yokucabangela izinkinga zokukhiqiza zebhodi lesifunda ekwakhiweni, ukuze izindleko zebhodi lesifunda ziphansi ngaphandle kokuthinta ukusebenza. Sicela ukhumbule ukuthi eziningi zalezi zindlela ezilandelayo zingase zingahlangabezani nezidingo zakho zangempela, kodwa uma izimo zivuma, ziyindlela enhle yokunciphisa izindleko.
Gcina zonke izingxenye ze-surface mount (SMT) ohlangothini olulodwa lwebhodi lesekethe
Uma kunesikhala esanele esitholakalayo, zonke izingxenye ze-SMT zingabekwa ohlangothini olulodwa lwebhodi lesekethe. Ngale ndlela, ibhodi lesekethe lidinga kuphela ukudlula inqubo yokukhiqiza ye-SMT kanye. Uma kukhona izingxenye ezinhlangothini zombili zebhodi lesifunda, kufanele lidlule kabili. Ngokususa ukugijima kwesibili kwe-SMT, isikhathi sokukhiqiza nezindleko kungalondolozwa.
Khetha izingxenye okulula ukuzishintsha
Lapho ukhetha izingxenye, khetha izingxenye okulula ukuzishintsha. Nakuba lokhu kungeke kusindise noma yiziphi izindleko zangempela zokukhiqiza, ngisho noma izingxenye ezishintshwayo zingasekho, asikho isidingo sokuklama kabusha nokuklama kabusha ibhodi lesifunda. Njengoba onjiniyela abaningi bazi, kuyintshisekelo yawo wonke umuntu ukugwema ukuklama kabusha!
Nawa amathiphu wokukhetha izingxenye ezishintshayo ezilula:
Khetha izingxenye ezinobukhulu obujwayelekile ukuze ugweme isidingo sokushintsha umklamo ngaso sonke isikhathi lapho ingxenye iphelelwa yisikhathi. Uma umkhiqizo oshintshwayo unomkhondo ofanayo, udinga kuphela ukufaka ingxenye entsha ukuze uqedele!
Ngaphambi kokukhetha izingxenye, sicela uvakashele amawebhusayithi athile womkhiqizi ukuze ubone ukuthi ingabe zikhona yini izingxenye ezimakwe “njengeziphelelwe yisikhathi” noma “azinconyelwe imiklamo emisha.”
Khetha ingxenye enosayizi ongu-0402 noma ngaphezulu
Ukukhetha izingxenye ezincane kusindisa isikhala sebhodi esibalulekile, kodwa lokhu kukhethwa kokuklama kune-drawback. Zidinga isikhathi esiningi nomzamo ukuze zibekwe futhi zibekwe ngendlela efanele. Lokhu kuholela ezindlekweni zokukhiqiza eziphakeme.
Kufana nomcibisholo ociba umcibisholo ocibishelayo ongamamitha angu-10 ububanzi futhi akwazi ukuwushaya ngaphandle kokugxilisa ingqondo kakhulu. Abacibisheli bangadubula ngokuqhubekayo ngaphandle kokumosha isikhathi esiningi namandla. Kodwa-ke, uma umgomo wakho wehliswa waba amayintshi angu-6 kuphela, umcibisholo kufanele agxilise ingqondo futhi achithe isikhathi esithile ukuze ashaye impoqo ngendlela efanele. Ngakho-ke, izingxenye ezincane kune-0402 zidinga isikhathi esiningi nomzamo wokuqedela ukufakwa, okusho ukuthi izindleko zizoba phezulu.
Qonda futhi ulandele izindinganiso zokukhiqiza zomkhiqizi
Landela izindinganiso ezinikezwe umenzi. Izogcina izindleko ziphansi. Amaphrojekthi ayinkimbinkimbi ngokuvamile abiza ngaphezulu ukuwakha.
Lapho uklama iphrojekthi, udinga ukwazi okulandelayo:
Sebenzisa isitaki esijwayelekile esinezinto ezijwayelekile.
Zama ukusebenzisa i-PCB yesendlalelo esingu-2-4.
Gcina isikhala esincane sokulandela umkhondo/igebe phakathi kwesikhala esijwayelekile.
Gwema ukwengeza izidingo ezikhethekile ngangokunokwenzeka.