Ibhodi yesekethe ye-PCB inokudibanisa izinto ezininzi ze-elektroniki kunye, ezinokugcina indawo kakuhle kwaye aziyi kuthintela ukusebenza kwesekethe. Kukho iinkqubo ezininzi kuyilo lwebhodi yesekethe PCB. Okokuqala, kufuneka sibeke Khangela iiparamitha zebhodi yesekethe yePCB. Okwesibini, kufuneka silungelelanise amalungu ahlukeneyo kwindawo yawo efanelekileyo.
1. Ngenisa inkqubo yoyilo lwePCB kwaye usete iiparamitha ezifanelekileyo
Misela imilinganiselo yokusingqongileyo yenkqubo yoyilo ngokwemikhwa yomntu, njengobungakanani kunye nodidi lwenqaku legridi, ubungakanani kunye nodidi lwekhesa, njl njl. Ngokuqhelekileyo, ixabiso elingagqibekanga lenkqubo lingasetyenziswa. Ukongezelela, iiparamitha ezifana nobukhulu kunye nenani leengqimba zebhodi yesekethe kufuneka zibekwe.
2. Veza itafile yenethiwekhi evela kumazwe angaphandle
Itheyibhile yothungelwano yibhulorho kunye nekhonkco phakathi koyilo lwenkqubo yesekethe kunye noyilo lwebhodi yesekethe eprintiweyo, ebaluleke kakhulu. Uluhlu lwenethi lunokuveliswa kumzobo wesikimu sesekethe, okanye lunokukhutshwa kwifayile yebhodi yesekethe ekhoyo eprintiweyo. Xa itheyibhile yenethiwekhi iqaliswa, kuyimfuneko ukujonga kunye nokulungisa iimpazamo kuyilo lwesikimu sesekethe.
3. Lungiselela indawo yephakheji nganye yenxalenye
Umsebenzi we-othomathikhi wenkqubo unokusetyenziswa, kodwa umsebenzi wokucwangcisa ngokuzenzekelayo awufezekanga, kwaye kuyimfuneko ukulungelelanisa ngesandla indawo yephakheji nganye yecandelo.
4. Ukuqhuba iintambo zebhodi yesekethe
Isiseko sokuhamba kwebhodi yesekethe ngokuzenzekelayo kukuseta umgama wokhuseleko, ifom yocingo kunye neminye imixholo. Okwangoku, umsebenzi we-wiring ngokuzenzekelayo wesixhobo uphelele, kwaye umzobo wesiphaluka jikelele unokuhamba; kodwa ukucwangciswa kweminye imigca akwanelisi, kwaye i-wiring inokwenziwa ngesandla.
5. Gcina ngemveliso yeprinta okanye ikopi eprintiweyo
Emva kokugqiba i-wiring yebhodi yesekethe, gcina ifayile yediagram yesekethe egqityiweyo, kwaye emva koko usebenzise izixhobo ezahlukeneyo zegraphic, ezifana nabashicileli okanye iiplani, ukukhupha umzobo wocingo webhodi yesekethe.
Ukuhambelana kwe-electromagnetic kubhekisa kubuchule besixhobo sombane sokusebenza ngokufanelekileyo nangokufanelekileyo kwiindawo ezahlukeneyo ze-electromagnetic. Injongo kukwenza ukuba izixhobo zombane zicinezele iziphazamiso ezahlukeneyo zangaphandle, zenza ukuba izixhobo zombane zisebenze ngokwesiqhelo kwindawo ethile ye-electromagnetic, kwaye kwangaxeshanye kuncitshiswe ukuphazamiseka kombane wezixhobo zombane ngokwazo kwezinye izixhobo zombane. Njengomboneleli woqhagamshelo lombane kumacandelo e-elektroniki, yintoni uyilo oluhambelanayo lwebhodi yesekethe yePCB?
1. Khetha ububanzi bocingo olufanelekileyo. Ekubeni ukuphazamiseka kwempembelelo eyenziwa ngumbane wexeshana kwimigca eprintiweyo yebhodi yesekethe ye-PCB ibangelwa kakhulu yi-inductance component yocingo oluprintiweyo, ukunyanzeliswa kocingo oluprintiweyo kufuneka kuncitshiswe.
2. Ngokobunzima besekethe, ukhetho olufanelekileyo lwenombolo ye-PCB yomaleko lunokunciphisa ngokufanelekileyo ukuphazamiseka kwe-electromagnetic, ukunciphisa kakhulu umthamo wePCB kunye nobude be-loop yangoku kunye ne-wiring yesebe, kunye nokunciphisa kakhulu ukuphazamiseka phakathi kweempawu.
3. Ukwamkela isicwangciso esichanekileyo socingo kunye nokusebenzisa i-wiring elinganayo kunokunciphisa i-inductance yeingcingo, kodwa i-inductance yokubambisana kunye nokusabalalisa i-capacitance phakathi kweengcingo kuya kwanda. Ukuba i-layout ivumela, kungcono ukusebenzisa i-mesh ye-wiring ye-wiring. Indlela ethile kukwenza elinye icala lebhodi eprintiweyo Wiring ethe tye, iingcingo kwelinye icala ngokuthe nkqo, uze uqhagamshelwe imingxuma metallized kwi imingxunya cross.
4. Ukuze ucinezele i-crosstalk phakathi kweengcingo zebhodi yesekethe ye-PCB, zama ukunqanda i-wiring elinganayo xa uyila i-wiring, kwaye ugcine umgama phakathi kweengcingo kangangoko kunokwenzeka. umnqamlezo. Ukuseta umgca oshicilelweyo osezantsi phakathi kwemigca yemiqondiso enovakalelo kakhulu kuphazamiseko inokucinezela ngempumelelo i-crosstalk.
