Kodi PCB kumalizitsa

Mawaya omwe ali pa PCB amaphimbidwa ndi mafuta, omwe amatha kuteteza kufupika kwakanthawi ndikuwononga chipangizocho. Zomwe zimatchedwa kuti zenera ndikuchotsa zosanjikiza za utoto pa waya, kuti waya iwoneke ndi malata.

Momwe mungapangire zenera la PCB lotsegulira PCB kapangidwe kake momwe mungakhalire zotsegulira zenera

Monga mukuwonera pachithunzipa pamwambapa, ndi pazenera. Kutsegula kwazenera kwa PCB sikwachilendo, ndipo chofala kwambiri mwina ndi gawo lokumbukira. Omwe mudasokoneza makompyuta mukudziwa kuti gawo lokumbukira limakhala ndi chala chimodzi chagolide, monga chithunzi pansipa:

Momwe mungapangire zenera la PCB lotsegulira PCB kapangidwe kake momwe mungakhalire zotsegulira zenera

Chala chagolide apa chikutanthauza kutsegula zenera, pulagi ndikusewera.

Kutsegula kwazenera ndichinthu chofala kwambiri, kutanthauza kuti, kusita malata kumawonjezera makulidwe azithunzi zamkuwa mtsogolo, zomwe ndizotheka pakadali pano, zomwe ndizofala mu bolodi yamagetsi ndi bolodi yamagalimoto.

Tsegulani Windows ndi mkuwa wowala pakupanga kwa PCB

Pakapangidwe kake, nthawi zambiri timakumana ndi zofunikira za makasitomala potsegula Mawindo ndi kuwalitsa mkuwa, koma ndizovuta kulumikizana nawo chifukwa makasitomala sadziwa zambiri kapena sitikudziwa bwino za njirayi. Mumapangidwe athu, nthawi zambiri amakumana ndi makasitomala amafunika kuwonjezera chivundikiro cha chishango, mbale m’mphepete mwa mkuwa wowala, kudzera pabowo lotseguka lotseguka, kutentha kwa IC kumabwerera mkuwa wowonekera, pini yamatini yabedwa ndi zina zambiri. Malinga ndi momwe zinthu zilili, tiyeni tiwone zithunzi zina kuti tifotokoze.

1. Chophimba chophimba

Ngati kasitomala akuyenera kuwonjezera chivundikiro chotetezera, zomwe tiyenera kuchita ndikuwonjezera soldmask ndi mulifupi osachepera 1mm. Tiyenera kutsimikizira ndi kasitomala ngati tikufunika kuwonjezera mauna achitsulo. Powonjezera Soldmask, tifunika kuyala khungu lamkuwa la netiweki m’dera lowonjezera Soldmask. Ndege ya Soldmask iyenera kuphimbidwa, apo ayi gawo lapansi lidzawululidwa (FR4, ndi zina zambiri). Ma neti ena omwe siapadziko lapansi sayenera kuwoloka Soldmask. Onjezani malo a Soldmask ku zotsatira za PCB kuti muwulule mkuwa wachikaso. Madera osadulidwa adzakutidwa ndi kutsekereza kwa solder.

Kodi kupanga PCB zenera kutsegula _PCB kapangidwe mmene kukhazikitsa Kulumikizana zenera kutsegula

2, dzenje kuwotcherera zenera

Pakapangidwe kake, nthawi zambiri timamva dzenje lonse la bolodi kapena pulagi yakomweko, tikamawonjezera mabowo, timamvetsera dzina la kampaniyo lomwe limadzazidwa ndi BGA, m’malo mwake, palibe BGA yomwe ili ndi mawindo otsekemera (kampani yathu mfundo). Zolemba zamakampani onse zimapitilira mabowo a 12mil ziyenera kukhala ndi mawindo otsekedwa pazenera.

Kodi kupanga PCB zenera kutsegula _PCB kapangidwe mmene kukhazikitsa Kulumikizana zenera kutsegula

3, IC kutentha kutentha kwadothi

Mwambiri, kumbuyo kwa pad kutentha kwanyumba kotentha kumawonjezera kuwotcherera kwazenera (onjezani kumbuyo soldmask wokulirapo kapena wofanana ndi pedi pamwamba) ndi dzenje, ndi kumbuyo kwa zotsekera zamkuwa, kuti muthe kutentha pamwamba dzenje kumbuyo kwa khungu lamkuwa limatuluka bwino.

Kodi kupanga PCB zenera kutsegula _PCB kapangidwe mmene kukhazikitsa Kulumikizana zenera kutsegula

4. Kuba mapadi a malata

Powotcherera mawonekedwe, pofuna kuthana ndi vuto lolumikiza malata omwe amabwera chifukwa chotseka mapepala, tidzagwiritsa ntchito tadpole mawonekedwe amata. Notice the copper skin with the same size as the solder should be added.

Kodi kupanga PCB zenera kutsegula _PCB kapangidwe mmene kukhazikitsa Kulumikizana zenera kutsegula

Momwe mungazindikire malata pa zenera la PCB wiring

Dera liyenera kuyendetsa kulandirana kwa njira 8, pomwe kulandirana kwamayendedwe ambiri kutsekedwa pomwe kuwonjezeka kwapano, kuti zitsimikizire zotsatira zake, pakukulitsa mzere wanthawi yomweyo, zikuyembekezeka kuchotsa kukana kuwotcherera Mzere wa mzere wapano – wosanjikiza wamafuta obiriwira, bolodi litapangidwa, mutha kuwonjezera malata pamwamba, kukulitsa mzere, kumatha kupitilira pano.

Zotsatira zake ndi izi:

Kodi kupanga PCB zenera kutsegula _PCB kapangidwe mmene kukhazikitsa Kulumikizana zenera kutsegula

Njira yakukhazikitsa ili motere:

Ingojambulani mzere mu ToPlayer (kapena bottomLayer kutengera mtundu wa mzere wokonzedweratu) wosanjikiza, kenako jambulani mzere womwe ukugwirizana nawo mu Topsolder (kapena pansi solder) wosanjikiza.

Kupanga kwa PCB momwe mungakhazikitsire zenera loyanjanitsa

Kupanga kwa CB kumatha kukhazikitsa zingwe zamtambo mu TOP / BOTTOM SOLDER wosanjikiza.

TOP / BOTTOM SOLDER wobiriwira mafuta wosanjikiza: Valani TOP / BOTTOM wosanjikiza ndi SOLDER mafuta obiriwira kuti muteteze malata kuti asavala zojambulazo zamkuwa ndikusungunuka.

Zotseka zenera lamafuta obiriwira zimatha kukhazikitsidwa padi, kupyola bowo komanso kulumikizana kosagwiritsa ntchito magetsi.

1. Mwachikhazikitso, pediyo idzatsegula zenera mu kapangidwe ka PCB (OVERRIDE: 0.1016mm), ndiye kuti, padyo imavumbula zojambulazo zamkuwa, imakulitsa 0.1016mm, ndipo malata adzawonjezedwa panthawi yamagetsi. Palibe zosintha pamapangidwe zomwe tikulimbikitsidwa kuti zitsimikizike kuti zikuyenda bwino;

2. Mwachikhazikitso, dzenje lidzatsegula zenera mu kapangidwe ka PCB (OVERRIDE: 0.1016mm), ndiye kuti, dzenje lidzawonetsa zojambulazo zamkuwa, kukulitsa 0.1016mm, ndipo malata adzawonjezedwa panthawi yamagetsi. Ngati kapangidwe kake ndikuteteza malata kuti asabwere padzenje ndi mkuwa kuti usatuluke, muyenera kuwona njira ya PENTING muzowonjezera zina za dzenje mu SOLDER MASK kuti mutseke.

3, kuphatikiza apo, wosanjikizawu amathanso kukhala wopanda waya wopanda magetsi, kuwotcherera kukana mafuta obiriwira ofanana ndi kutsegula kwazenera. Ngati ili pa waya wojambula wa mkuwa, imagwiritsidwa ntchito kupititsa patsogolo wayawo, ndipo kukonza malata kumawonjezeredwa mukamawotcherera; Ngati ili pama waya osakhala amkuwa, nthawi zambiri amapangidwira logo ndi makina osindikizira apadera, ndipo mawonekedwe osindikizira amatha kusiyanitsidwa.