Mene ne PCB taga

Wayoyin da ke kan PCB an rufe su da mai, wanda zai iya hana gajeriyar kewaye da lalacewar na’urar. Abin da ake kira taga shine cire fentin fenti akan waya, ta yadda za a iya fallasa waya da tin.

Yadda ake ƙera taga PCB buɗe PCB ƙira yadda ake saita buɗe taga taga

Kamar yadda kuke gani a hoton da ke sama, ta taga ne. Bude taga PCB ba sabon abu bane, kuma mafi na kowa shine mai yiwuwa ƙwaƙwalwar ƙwaƙwalwa. Wadanda daga cikinku suka tarwatsa kwamfuta sun sani cewa module memory yana da yatsa na zinare guda ɗaya, kamar yadda aka nuna a hoton da ke ƙasa:

Yadda ake ƙera taga PCB buɗe PCB ƙira yadda ake saita buɗe taga taga

Yatsa na zinare anan yana nufin buɗe taga, toshe da wasa.

Budewar taga shima aikin gama gari ne, wato, yin baƙin ƙarfe yana ƙara kaurin murfin jan ƙarfe a matakin baya, wanda ya dace da wuce kima na yanzu, wanda ya zama ruwan dare a cikin hukumar wutar lantarki da hukumar sarrafa motoci.

Bude Windows da tagulla mai haske a cikin ƙirar PCB

A cikin ƙira, galibi muna biyan buƙatun abokan ciniki don buɗe Windows da tagulla mai haske, amma yana da wahalar sadarwa tare da su saboda abokan ciniki ba su da ƙaramin sani ko ba mu da cikakken bayani game da wannan tsari. A cikin ƙirar mu, galibi abokan cinikin suna buƙatar ƙara murfin garkuwa, farantin gefen jan ƙarfe mai haske na gida, ta hanyar ramin buɗe waldi mai ƙarfi, IC zafi nutse baya fallasa jan ƙarfe, satar kwanon rufi da sauransu. Dangane da ainihin yanayin, bari mu kalli wasu hotuna don bayyanawa.

1. Murfin garkuwa

Idan abokin ciniki yana buƙatar ƙara murfin garkuwa, abin da muke buƙatar yi shine don ƙara soldmask tare da faɗin aƙalla 1mm. Muna buƙatar tabbatarwa tare da abokin ciniki ko muna buƙatar ƙara raga ƙarfe. Lokacin ƙara Soldmask, muna buƙatar sanya fatar jan ƙarfe na cibiyar sadarwar ƙasa a yankin ƙara Soldmask. Dole ne a rufe jirgin Soldmask, in ba haka ba za a fallasa substrate (FR4, da sauransu). Sauran hanyoyin sadarwar da ba na ƙasa ba ya kamata su ƙetare Soldmask. Ƙara yankin Soldmask zuwa tasirin PCB don bayyana jan ƙarfe mai rawaya. Za a rufe wuraren da ba a haɗa su ba ta hanyar toshewa.

Yadda ake ƙera taga PCB buɗe _PCB ƙirar yadda ake saita buɗe window taga

2, ramin taga walda

A cikin ƙira, sau da yawa muna jin duk ramin jirgi na katako ko ramin toshe na gida, lokacin ƙara ramuka, muna mai da hankali ga sunan kamfanin toshe rami gabaɗaya yana ƙona BGA, akasin haka, babu BGA suna rami taga taga (kamfanin mu takamaiman bayani). Bayanai dalla -dalla na kamfanin sun wuce ramukan mil 12 dole ne a haɗa ramukan taga.

Yadda ake ƙera taga PCB buɗe _PCB ƙirar yadda ake saita buɗe window taga

3, kushin watsawar zafi na IC

Gabaɗaya, a bayan IC ƙwanƙwasa zafi yana ƙara taga walda (ƙara ƙaramar siyarwa mafi girma ko daidai da kushin farfajiya) da rami, kuma a bayan murfin murfin tagulla, don mafi kyawun sanya zafin zafin ƙasa. rami zuwa bayan fata na jan ƙarfe ya fi kyau fita.

Yadda ake ƙera taga PCB buɗe _PCB ƙirar yadda ake saita buɗe window taga

4. Satar gammaye

A cikin siyar da igiyar ruwa, don magance matsalar haɗa tin da ke haifar da tazara ta kusa, za mu yi amfani da sifar tadpole na fakitin tin. Yi la’akari da fatar jan ƙarfe mai girman daidai da mai siyarwa.

Yadda ake ƙera taga PCB buɗe _PCB ƙirar yadda ake saita buɗe window taga

Yadda ake gane tin a kan taga wayoyin PCB

Da’irar tana buƙatar fitar da gudunmawar tashar tashar 8, lokacin da aka rufe tashar rediyo da yawa lokacin da halin yanzu ke ƙaruwa, don tabbatar da ainihin tasirin, a faɗaɗa layin na yanzu a lokaci guda, ana fatan cire juriya na walda Layer na layin yanzu – kore mai mai, bayan an yi katako, zaku iya ƙara tin zuwa saman, mai kauri layin, zai iya wuce ƙarin halin yanzu.

Ainihin sakamakon shine kamar haka:

Yadda ake ƙera taga PCB buɗe _PCB ƙirar yadda ake saita buɗe window taga

Hanyar aiwatarwa kamar haka:

Kawai zana layin a cikin ToPlayer (ko kasaLayer dangane da wane layin layin saiti yake a ciki), sannan zana layin da yayi daidai da shi a cikin Topsolder (ko mai siyarwa ƙasa).

PCB ya tsara yadda ake saita taga wayoyi

Zane na CB na iya saita haɗin waya a cikin TOP/BOTTOM SOLDER Layer.

TOP/BOTTOM SOLDER koren mai mai rufi: Rufe saman TOP/BOTTOM tare da SOLDER koren mai don hana tin daga rufe murfin jan ƙarfe da kula da rufi.

Ana iya saita toshe taga mai mai kore akan kushin, ta cikin rami da wayoyin lantarki marasa amfani na wannan Layer.

1. Ta hanyar tsoho, kushin zai buɗe taga a cikin ƙirar PCB (KYAUTA: 0.1016mm), wato, kushin yana fallasa bango na jan ƙarfe, yana faɗaɗa 0.1016mm, kuma za a ƙara tin a lokacin siyarwa. Babu shawarar canje -canje da aka ba da shawarar don tabbatar da walda;

2. Ta hanyar tsoho, ramin zai buɗe taga a cikin ƙirar PCB (OVERRIDE: 0.1016mm), wato, ramin zai fallasa bango na jan ƙarfe, faɗaɗa 0.1016mm, kuma za a ƙara tin a lokacin siyarwa. Idan ƙirar za ta hana tin daga zuwa ramin da jan ƙarfe ya fito, dole ne ku duba zaɓin PENTING a cikin ƙarin sifar ramin a SOLDER MASK don rufe ramin.

3, Bugu da kari, wannan Layer kuma yana iya zama mai zaman kansa ba tare da wutan lantarki ba, walda juriya kore mai dacewa daidai buɗe taga. Idan yana kan waya na jan ƙarfe, ana amfani da shi don haɓaka ƙarfin waya na yanzu, kuma ana ƙara sarrafa tin lokacin walda; Idan yana kan waya mara waya na jan ƙarfe, gabaɗaya an tsara shi don tambari da bugun allo na hali na musamman, kuma za a iya tsallake fakitin allon halin.