PCB uhlobo lokuvikela

Ngamagama alula, ukugcinwa kwe-PCB kungachazwa kanjena:

Uhlaka lwentambo ye-PCB lwakhiwe ngumklami wezinto ezingaphandle ezindaweni ezingasetshenziswanga ebhodini lesifunda, lapho imikhondo yethusi noma ezinye izingxenye zebhodi lesifunda zizongena noma ziwele. Indawo ingaba noma yethusi futhi ingaba nanoma yisiphi isimo.

Ezimweni eziningi, izindawo zokugcina zisetshenziselwa ukugcina izindawo ezithile zebhodi zikude ngokwanele nezinye izinto ukuvimbela noma ukunciphisa i-EMI. Kodwa-ke, zisetshenziselwa ukuhlinzekela isikhala sokuthungathwa kwe-fan-out kwezingxenye eziphakanyiswe ngaphezulu. Izibonelo zingamaprosesa noma ama-FPGas, okuvamise ukuba amabhodi wokuhlola ne-PCB wokuthuthukisa. Ezinye izinhlobo zokubhuka ezivamile zibhalwe ngezansi.

Uhlobo lokuvikelwa kwe-PCB

I-antenna

Mhlawumbe, uhlobo oluvame kakhulu lokubhuka ukugcina indawo yentambo yethusi ezungeze i-onboard noma i-antenna exhunyiwe ukuvimbela i-EMI ekuthikamezeni ukwethembeka kwesiginali esidlulisiwe noma esamukelwe. Ukubhuka kungahle kuqukathe nezintambo ze-antenna kwamanye amasekethe.

izingxenye

Kujwayelekile futhi nokwenza indawo yokuphuma kwabalandeli ezungeze izinto (ikakhulukazi ama-radiator e-EM). Lokhu kuyiqiniso kuma-microprocessors, i-FPgas, i-AFE nezinye izinto eziphakathi nendawo eziphakeme zokubala amaphini (okuvame ukusetshenziselwa amaphakheji we-patch).

Plate edge clearance area

Ukususwa kwe-Edge kubaluleke kakhulu ekukhiqizeni. Ngokuqondile, amapaneli ahlukaniswa ngamabhodi ngamanye ngesikhathi somhlangano we-PCB. Ukuze wenze lokhu, imvume eyanele kufanele ishiyelwe izintambo noma ukushaya amagoli.

ukulandelela

Kwesinye isikhathi kungaba lusizo ukuchaza izindawo zokubhuka eziseduze nemikhondo. Kwesinye isikhathi kusetshenziselwa imigqa yokudlulisa eyakhiwe nge-coplanar ukufeza i-impedance elawulwayo.

ukubhola

Amapuleti amaningi afakwa ngezikulufo noma amabhawodi. Kulezi zimo, kuyasiza ukuchaza isikhala esizungeze izimbobo. Isikhala esanele singathinta ukuhlangana, ukuphazamisa ukusebenza kwesekethe, futhi kubangele nomonakalo webhodi lesifunda. Ngemigodi evulekile, imvamisa ulandela nje imithetho ye-CM’s DFM.

Isixhumi

Ngokuya ngohlobo lwesixhumi ngokwendlela ebekiwe nangokubekwa ngayo, ukwakheka kwebhodi yakho kungadinga ukubhekisisa izinto ezimbili: isisekelo sendawo yebhodi lokuxhuma kanye nephaneli. Imvamisa, ukuhlelwa kwesixhumi noma ipulagi akubandakanyi isikhala sokuxhuma izintambo zangaphandle noma ikhebula. Kulezi zimo, ukugcina isimo kubalulekile ukuqinisekisa ukuthi isekethe lenza njengoba kulindelekile.

switch

Okunye ukusetshenziswa okuhle kwesibekeli ukuhlinzeka indawo yokupheqa noma yokuhambisa amaswishi abekwe phezulu.

Uhlu olungenhla lunikeza izinhlobo ezithile ezivamile nokusetshenziswa kokugcinwa kwe-PCB. Kwezinye izimo, noma kunjalo, kungadingeka ukuthi uchaze izindawo ezibekiwe. Isibonelo, uma idizayini yakho isebenzisa izinto; Isibonelo, kuma-amplifiers asebenzayo, lapho kunokungqubuzana okukhulu kwe-impedance phakathi kokufaka nokukhiphayo, isekethe lingahle lithonywe ukuvuza kokuphuma kwamanje, ngakho-ke kungadingeka ukunikela ngale ndlela elandelayo yokuvikela: iringi yokuvikela i-PCB. Yize ingahlukaniswa njengendawo evikelekile, iringi yokuvikela isebenza njengesithiyo ngokomzimba ezintweni zangaphandle nasekuxhumeni izintambo, futhi ivimbela amandla angaphakathi ekuphumeni endaweni. Manje sesikulungele ukubheka ukuthi singaqinisekisa kanjani ukuthi ukubhuka kuyawenza umsebenzi wawo.

Hlala kude nezinkinga

Izinyathelo zokugcina i-PCB zisebenza kuphela uma empeleni zifeza izinhloso zazo. Lokhu ukuhlinzeka ngokuhlukaniswa ezindaweni ezithile zebhodi kusuka kunoma iziphi izinto zangaphandle. Ukufeza lokhu, udinga ukulandela le mihlahlandlela emihle ye-Keepout.

Inqubo yokugcinwa kwe-PCB

Thola ukuthi kungani ukugcinwa kudingekile

Nquma ukuthi singakanani isikhala esidingekayo ngokuya ngokusetshenziswa

Sebenzisa omaka bokuphrinta besikrini ukukhomba izindawo zokubhuka

Qinisekisa ukuthi idokhumenti yakho yokuklama iqukethe imininingwane yokugcina

Ukubanjwa kwe-PCB kuyimpahla ebalulekile ekwakhiweni kwebhodi yakho, kuqinisekiswa ukuthi isebenza njengokulindelekile. Ngokulandela le mihlahlandlela futhi uyisebenzise ngokugcwele, ungagwema izingxabano zesakhiwo futhi uthuthukise ukuthembeka kwe-PCBA ngemuva kokuthunyelwa.