page_banner

labarai

1, PCB Kwafin Injiniya ta amfani da ɗakunan keɓaɓɓen ɗakunan bugawa

Ana iya samun wannan daga tsarin kyakkyawan tasirin kariya: matsakaiciyar layin don layin wuta ko ƙasa, samarda wutar da aka kulle a cikin jirgi, ɓangarorin biyu na maganin ruwansu, na iya gudana ta cikin ƙananan damuwa da ƙananan baya shafar kowane wasu; Launin cikin da aka yi da babban yanki na yankin gudanarwa, wayoyi suna da babban ƙarfin lantarki tsakanin haɓakar ƙarancin katako mai ba da wutar lantarki, wanda zai iya hana fitilun kwamitin kewaye da karɓar amo.

SMT-SMD-printed-circuit-board-assembly

2, PCB Kwafin Injiniyan da aka zaba a hankali

Zaɓi ya kamata ya mai da hankali ga tsufan abubuwan da aka gyara, kuma zaɓi ƙimar zafin zafin zafin karamin sandar kwafin na'urar. Don da'irori masu ɗimbin yawa, ya kamata ya dace don amfani da fim ɗin don rage siginar kewaye. A cikin zaɓin na'urori masu ma'ana, don yin la'akari da alamun alamun hayaniyar sa, ya fi kyau a yi amfani da HTL, idan duk ƙarfin amfani, amfani da VDD ≥ 15V CMOS ya dace.

news pic16
news pic17

3, PCB Kwafin Injiniya buga kwandon kewaye "cikakken ƙasa"

Yayin zana allon zagayawa masu yawa, banda kauri kamar waya da aka buga, bai kamata mahaɗan kewaya su mamaye ko'ina kamar waya ta ƙasa ba, don na'urar ta kasance kusa da ƙasa. Wannan na iya rage tasirin cutar parasitic, yayin da babban yanki na ƙasa na iya rage tasirin sautin. 4, a cikin kwalin kewaye da aka buga tare da ɗaya ko duka bangarorin farantin ƙasa

 Wato, tare da wani yanki na aluminium ko ƙarfe da aka makala a jikin allon kewayawa a bayan (walda), ko kuma allon da aka buga a allon aluminum biyu ko na ƙarfe. An shigar da farantin ƙasa kusa da yadda zai yiwu ga kwamitin kewaye da aka buga kuma dole ne a haɗa shi da (SG) mafi ƙasan ƙasa na siginar tsarin. Wannan tsarin yana da sauki kuma mai sauki ne a yi kwatankwacin allon rubutu da yawa. Idan kana son biyewa mafi tasirin danniya, za a iya shigar da kwamitin kewaye a cikin akwatin ƙarfe mai kariya gaba ɗaya, don kada ya samar, kar ka amsa amo.

news pic18

PCB kwafin allon matakai

Mataki na farko shine samun PCB, na farko a cikin takarda don yin rikodin duk abubuwan samfurin, sigogi, da kuma wurin, musamman diode, alkiblar bututu uku, alkiblar tazarar IC. Zai fi kyau kyamarar dijital hotuna biyu daga wuri. Yanzu PCB sunfi cigaba da diode triode, wasu basa kula don kar su gani a sama.

Mataki na biyu, rushe duk kwafin kwafen da aka lalata, tin a cikin ramuka na PAD sai a cire. . Yarn takarda zai hau saman da ƙasa tare da ruwa ɗan niƙa, mai gogewa zuwa fim na jan ƙarfe, a cikin sikanin, fara PHOTOSHOP, ya buga layuka biyu bi da bi cikin yanayin launi. Lura cewa PCB dole ne ya kasance a kwance ko a tsaye, sanya shi a cikin sikanna ko hoton hoto ba zai yiwu ba.

Mataki na uku, daidaita bambancin zane, bambancin, ɓangaren fim na jan ƙarfe kuma ba ɓangare na bambancin fim ɗin tagulla ba, to adadi na farko zuwa baƙi da fari, bincika ko layin ya bayyana, idan bai bayyana ba, maimaita wannan matakin .Idan ya bayyana, zai wanzu don blackan fari da fari TOP. Tsarin fayil na BMP na BMP da BOT. BMP, idan aka sami matsaloli masu zane-zane shima zai iya gyarawa da gyara a cikin PHOTOSHOP.

SCH1
SCH3

Mataki na huɗu, tsarin BMP guda biyu zuwa fayil ɗin PROTEL, bi da bi a cikin PROTEL an canza shi zuwa layuka biyu, kamar su Layer biyu na PAD da wurin da VIA ta sami daidaituwa, cewa matakai da yawa kafin yin kyau sosai, idan akwai karkata , sannan maimaita mataki na 3.Saboda haka kwafin kwafin PCB yana matukar bukatar aikin haƙuri, saboda karamar matsala zata shafi inganci da kwafe allon bayan wasan.

Na biyar, ana iya jujjuya TOP na BMP zuwa PCB, yi hankali ka shiga Layer SILK, Layer din rawaya ce, to kana cikin layin TOP ne ana bin sawun, kuma ana zana na'urar bisa ga mataki na biyu. Bayan zane zai share SILK layer. Maimaita san zana dukkan yadudduka.

Mataki na 6, TOP a cikin PROTEL PCB da BOT. PCB yayi kama, cikin hoto game da OK.

Mataki na 7, TOPLAYER tare da na'urar buga laser, BOTTOMLAYER bi da bi ana bugawa akan fim mai haske (rabon 1: 1), saka fim ɗin akan PCB, kwatanta kurakurai, idan haka ne, kun gama.

A da asalin farantin daidai kwafin kwafi aka haifa, amma anyi rabi ne kawai. Gwaji, kwafin farantin farantin fasahar lantarki yayi daidai da asalin farantin. Idan an kammala. Lura: idan yana da yawa da kuma goge abubuwa sosai a cikin layin ciki, a lokaci guda, maimaita matakai, na uku zuwa na biyar na kwafin suna mai banbanci daban ne, ba shakka, ana so a yanke shawara gwargwadon yawan layin , babban kwamiti mai sau biyu yafi sauki fiye da allon kwafi na multilayer, takaddar kwafin multilayer mai saukin daidaitawa, saboda haka kwafin kwafin profess-sional yayi duba da kyau (gami da ramin jagorar ciki da ramin jagora ba sauki ya bayyana matsala).

 


Post lokaci: Dec-08-2020