- Waa maxay qodista dhabarka?
Qodista qodista waa nooc gaar ah oo qodista god dheer. Soo-saaridda looxyada lakabka badan, sida 12-lakab lakab, waxaan u baahan nahay inaan ku xirno lakabka koowaad ee lakabka sagaalaad. Caadi ahaan, waxaan ku qodnaa god (hal daloolo) ka dibna ka dib ku maydhaa naxaasta.in sidan, dabaqa koowaad ayaa si toos ah ugu xiran dabaqa 12-aad. In fact, we only need the first floor to connect to the 9th floor, and the 10th floor to the 12th floor because there is no line connection, like a pillar.This pillar affects the path of the signal and can cause signal integrity problems in communication signals.So drill the redundant column (STUB in the industry) from the reverse side (secondary drill).So called back drill, but generally not drill so clean, because the subsequent process will electrolysis off a little copper, and Tilmaamaha 'Till laftiisu waa la tilmaamay Dhererka xarkaha ee xalkan waxaa loo yaqaan qiimaha B, oo guud ahaan ku jira tirada 50-150um.
2. Faa'iidooyinka dib-u-qodista
1) Yaree faragalinta buuqa
2) Hagaajinta sharafta calaamadaha
3) dhumucda saxanka maxalliga ah wuu yaraanayaa
4) Yaree isticmaalka godadka la aasey oo yaree dhibaatada wax soo saarka PCB.
3. Isticmaalka qoditaanka dib
Ku laabashada qodashada wax xidhiidh ah ama saamaynta qaybta godka, iskaga ilaali in la muujiyo qaabeynta xawaaraha xawaaraha, ka sokow, daloolka chip, godyada hagida, godka hagida ayaa saameyn weyn ku leh sharafta calaamadda.
4. Mabda'a shaqadu ee qoditaanka dambe ee qodista
Marka cirbadda ladiodo ay qoditaan, micro-ga micro ee la soo saaray marka cirbadaha la soo xiriiro fashilka naxaas ah ee dusha sare ee saxanka, ka dibna taarikhda ayaa la joojin doonaa marka qodobka qorta la gaaro.
5.Booxashada geedi socodka wax soo saarka
1) Sii PCB PCB oo leh god qalab. U adeegso daloolka qalabka si aad u meelayso PCB-ga oo aad qodato god;
2) Electroplating PCB-ga ka dib markii qodida god, oo uu ku xirxiro godka filimka qallalan ka hor intaanad koronto laheyn;
3) Samee garaafyada lakabka sare ee dusha sare ee kumbuyuutarka kombuyutarka elektaroonigga ah;
4) Anshax ku samee qaabka loo yaqaan 'Elect' ah oo ku saabsan PCB-ga ka dib markii la sameeyo qaabka dibedda, oo uu sameeyo filim qalalan oo ku saabsan daloolka godka booska ka hor inta aan qaabab la adeegsanayo.
5) U adeegso godka booska ee uu u isticmaalo hal daloolin si aad u dhigto dhabarka dambe ee dhabarka, oo aad u isticmaasho goynta qaddarka si aad ugu laabato godka elektaroonigga ah ee u baahan in dib loo soo noqdo;
6) Dhaq qodista dib u soo noqoshada ka dib markii dib loo bilaabo qodista si meesha looga saaro gooyn haraaga ah ee qoditaanka dambe ee qodista.
6. Astaamaha farsamada ee saxanka dambe ee qoditaanka
1) Guddiga adag (inta badan)
2) Badanaa waa 8 - 50 lakab
3) Furfurnaanta Golaha: in ka badan 2.5mm
4) dhexroor dhumucda waa mid aad u ballaaran
5) Cabbirka guddiga waa mid aad u ballaaran
6) Dhex-dhexaadinta ugu yar ee daloolka ugu horreeya waa> = 0.3mm
7) Sarreeyaha wareegga banaanka ah, naqshad badan oo laba jibbaaran oo loogu talagalay daloolka isku-dhafka ah
8) Daloolka dambe ee dhabarka ayaa badanaa ah 0.2mm ka weyn godka u baahan in la qodo
9) U dulqaadashada qoto dheer waa +/- 0.05mm
10) Haddii qolofka dambe uu u baahan yahay qodista lakabka m, dhumucda dhexdhexaadka ah ee u dhexeeya lakabka m iyo m-1 (lakabka xiga ee lakabka m) waa ugu yaraan 0.17mm
7. Codsiga ugu weyn ee saxan qoditaanka dambe
Qalabka isgaarsiinta, server weyn, koronto caafimaad, militariga, hawada, hawada iyo meelaha kale. Markii ay millatariga yihiin iyo hayaanku waa warshado xasaasi ah, gadaasha guriga waxaa badanaa lagu bixiyaa machadka cilmi-baarista, xarunta cilmi-baarista ee militariga iyo soosaarayaasha PCB-da, iyo hadda ka soo baxa qalabka isgaadhsiinta, iyo hadda soosaarka qalabka isgaadhsiinta ayaa si tartiib tartiib ah u koraya.
