Menene ka'idoji shida na wayar PCB?

Zhejiang NeoDen Technology Co., LTD., An kafa shi a cikin 2010, ƙwararrun masana'anta ne ƙwararrun masana'antaNa'ura mai hawa SMT, Maimaita tanda,stencil printer, SMT samar line da sauran SMT Products.Muna da ƙungiyar R & D da masana'antar mallaka, suna amfani da fa'idodin abubuwan da muka samu R & D, da kyau sosai daga abokan cinikin duniya.
A cikin wannan shekaru goma, mun ci gaba da kanmuNeoDen4, NeoDen IN6,NeoDen K1830, NeoDen FP2636 da sauran samfuran SMT, waɗanda suka sayar da kyau a duk faɗin duniya.Ya zuwa yanzu, mun sayar da injuna sama da 10,000pcs kuma mun fitar da su zuwa kasashe sama da 130 na duniya, wanda hakan ya sa a yi suna a kasuwa.A cikin tsarin mu na duniya, muna haɗin gwiwa tare da mafi kyawun abokin aikinmu don isar da ƙarin sabis na tallace-tallace, babban ƙwararru da ingantaccen tallafin fasaha.
Menene ka'idoji shida na wayar PCB?
1. Samar da wutar lantarki, sarrafa ƙasa
Dukkanin wayoyi a cikin dukkan allon PCB an kammala su da kyau, amma tsangwama da rashin la'akari da wutar lantarki da layin ƙasa zai lalata aikin samfur, kuma wani lokacin ma yana shafar nasarar samfurin.Don haka ya kamata a yi la’akari da wayar da layukan lantarki da na kasa da muhimmanci don rage katsalandan amo da layukan lantarki da na kasa ke haifarwa don tabbatar da ingancin kayayyaki.Ga kowane injiniyoyin da ke aikin kera samfuran lantarki sun fahimci dalilan hayaniya da ke haifarwa tsakanin layin ƙasa da wutar lantarki.Yanzu kawai don rage nau'in haɓakar amo don bayyanawa: sanannen yana cikin samar da wutar lantarki, tsakanin layin ƙasa da decoupling capacitors.Yi ƙoƙarin faɗaɗa wutar lantarki, faɗin layin ƙasa, wanda zai fi dacewa fiye da layin wutar lantarki, alaƙar su ita ce: layin ƙasa> layin wutar lantarki> layin sigina, yawanci faɗin layin sigina: 0.2 ~ 0.3mm, mafi girman nisa mai kyau har zuwa 0.05 ~ 0.07mm, layin wutar lantarki na 1.2 ~ 2.5 mm akan PCB na dijital da ke akwai waya mai faɗin ƙasa don samar da da'ira, wato, zama cibiyar sadarwa ta ƙasa don amfani (analog circuit of (analog circuit ground ba za a iya amfani da ita ta wannan hanyar ba) tare da babban yanki na tagulla Layer na ƙasa, a cikin bugu da aka buga ba a yi amfani da shi a cikin wurin da aka haɗa da ƙasa kamar yadda ƙasa.
2. da'irori na dijital da na'urorin analog don sarrafa ƙasa gama gari
A zamanin yau, yawancin PCBs ba su zama da'ira mai aiki ɗaya ba, amma cakuda da'irori na dijital da na analog.Saboda haka, a cikin wayoyi za su buƙaci yin la'akari da matsalar tsoma bakin juna a tsakanin su, musamman kutsawar amo a ƙasa.Da'irori na dijital suna da tsayin mita, da'irori na analog suna da hankali, don layin sigina, layukan sigina masu tsayi kamar nisa kamar yadda zai yiwu daga na'urorin da'irar analog mai mahimmanci, don ƙasa, duk PCB zuwa duniyar waje kawai junction, don haka PCB dole ne ya kasance. ana sarrafa su a cikin na'ura na dijital da na analog na gama gari, kuma a zahiri an raba allon daga ƙasan dijital da analog ɗin ba a haɗa su da juna ba, kawai a cikin haɗin PCB da haɗin gwiwar duniyar waje da ke tsakanin PCB da duniyar waje.Ƙasar dijital da ƙasan analog suna da gajeriyar haɗi, da fatan za a lura cewa wurin haɗi ɗaya ne kawai.Har ila yau, babu wani wuri na gama gari akan PCB, wanda tsarin tsarin ya ƙaddara.
3. Layukan sigina da aka shimfiɗa akan layin lantarki (ƙasa).
A cikin multilayer buga kewaye hukumar wayoyi, saboda siginar Layer Layer ba a gama zane line bar ba shi da yawa, sa'an nan kuma ƙara ƙarin yadudduka zai haifar da sharar gida zai kuma ƙara wani adadin aiki ga samar, da kudin ya karu daidai da. Domin warware wannan sabani, zaku iya la'akari da wiring akan Layer na lantarki (ƙasa).La'akari na farko ya kamata a yi amfani da wutar lantarki, sannan kuma ƙasa ta biyo baya.Domin yana da kyau a riƙe mutuncin Layer na ƙasa.
4. Gudanar da ƙafafu masu haɗawa a cikin manyan masu jagorancin yanki
A cikin ƙasa mai girma (lantarki), abubuwan da aka saba amfani da su na kafa da haɗin gwiwa, sarrafa ƙafar haɗin gwiwa yana buƙatar cikakken la'akari, dangane da aikin lantarki, kushin ɓangaren ƙafar ƙafa da tagulla cikakken haɗin gwiwa yana da kyau, amma taron walda na abubuwan da aka gyara akwai wasu ramukan da ba a so kamar: ① walda yana buƙatar dumama mai ƙarfi.② mai sauƙin haifar da maki solder karya.Don haka la'akari da aikin wutar lantarki da buƙatun tsari, waɗanda aka yi da ginshiƙan furen fure, wanda ake kira keɓewar thermal wanda aka fi sani da pads masu zafi, ta yadda yuwuwar wuraren siyar da ƙirƙira ta ƙima a cikin ɓangaren giciye yayin waldawa yana raguwa sosai.Multi-Layer jirgin na grounding (ƙasa) Layer kafa na wannan magani.
5. Matsayin tsarin sadarwa a cikin wayoyi
A yawancin tsarin CAD, wiring yana dogara ne akan shawarar tsarin cibiyar sadarwa.Grid yana da yawa sosai, hanyar yana ƙaruwa, amma matakin ya yi ƙanƙara, kuma adadin bayanan da ke cikin filin adadi ya yi yawa, wanda babu makawa yana da buƙatu masu girma don ajiyar kayan aiki, kuma yana da tasiri mai yawa. akan saurin sarrafa kayan lantarki irin na kwamfuta.Kuma wasu daga cikin hanyar ba su da inganci, kamar kushin da aka shagaltar da sashin kafa ko ta rami na shigarwa, gyara ramukan su da ke cikin.Grid ɗin ba ya da yawa, samun damar shiga rigar kaɗan kaɗan ta ƙimar babban tasiri.Don haka yakamata a sami tsarin grid mai ma'ana don tallafawa aikin wayoyi.Nisa tsakanin ƙafafu biyu na daidaitattun abubuwan haɗin kai shine 0.1 inch (2.54 mm), don haka tushen tsarin grid gabaɗaya ana saita shi a 0.1 inch (2.54 mm) ko mahara lamba na ƙasa da 0.1 inch, kamar: 0.05 inch. , 0.025 inch, 0.02 inch, da dai sauransu.
6. Duba Dokokin Zane (DRC)
Bayan an gama zayyana wayoyi, wajibi ne a bincika a hankali ko ƙirar wayar ta dace da ƙa'idodin da mai zanen ya gindaya, sannan kuma a tabbatar da ko ƙa'idodin da aka gindaya sun cika buƙatun aikin samar da na'urar da'ira, gabaɗaya ana bincikar abubuwan da suka biyo baya: layi da layi, layi da sassan sassa, layi da ta-rami, pad pad da ta-rami, ko nisa tsakanin ramin da rami yana da ma'ana kuma ko ya dace da bukatun samarwa.Shin fadin wutar lantarki da layin ƙasa ya dace, kuma akwai madaidaicin haɗakarwa (ƙananan igiyar igiyar ruwa) tsakanin layin wutar lantarki da ƙasa?Akwai har yanzu wurare a cikin PCB inda za a iya faɗaɗa layin ƙasa.Shin mafi kyawun matakan da aka ɗauka don mahimman layukan sigina, kamar mafi ƙarancin tsayi, ƙara layukan kariya, da shigar da layukan fitarwa sun rabu a fili.Ko sassan da'irar analog da dijital suna da nasu layin ƙasa daban.Ko zane-zane (misali gumaka, alamun rubutu) da aka ƙara daga baya zuwa PCB na iya haifar da guntun sigina.Gyaran wasu sifofin layin da ba a so.Shin akwai layin tsari da aka ƙara zuwa PCB?Shin mai siyarwar ya cika buƙatun tsarin samarwa, girman mai siyar ya dace, kuma ana matse alamomin halayen akan fatun na'urar don kada su shafi ingancin shigarwar lantarki.Shin an rage gefen firam ɗin ƙasan wutar lantarki a cikin allon multilayer, kamar layin ƙasa mai ƙarfi na foil ɗin jan ƙarfe da aka fallasa a wajen allon yana da saurin kewayawa.Maƙasudin wannan daftarin aiki shine don bayyana amfani da software na ƙirar allon da'irar bugu na PADS PowerPCB don ƙirar ƙirar allon da'ira da wasu la'akari don ƙungiyar aiki na masu zanen kaya don samar da ƙayyadaddun ƙira don sauƙaƙe sadarwa tsakanin masu zanen kaya da duba juna.