Tixgelinta Naqshadeynta Layout PCB

Si loo fududeeyo wax-soo-saarka, tolidda PCB guud ahaan waxay u baahan tahay inay naqshadayso barta Mark, V-slot, cidhifka habka.

I. Qaabka saxanka higgaada

1. Qaabka dibadda ee looxa kabidda PCB (cidhifka isku dhufashada) waa in uu ahaadaa naqshad xiran si loo hubiyo in guddiga kabxinta PCB-ga aan la habayn ka dib marka lagu hagaajiyo qalabka.

2. PCB balac balladhka ≤ 260mm (line SIEMENS) ama ≤ 300mm (line FUJI);Haddii si toos ah loo baahdo, PCB ballac x dhererkiisu ≤ 125 mm x 180 mm.

3. PCB qaabka looxa kabida sida ugu dhow afar geesaha intii suurtogal ah, lagu taliyay 2 × 2, 3 × 3, …… looxa kabidda;laakiin ha ku higgaadin sabuuradda yin iyo yang.

II.V-slot

1. ka dib marka la furo V-slot, dhumucda soo hadhay X waa in ay ahaataa (1/4 ~ 1/3) dhumucda looxa L, laakiin dhumucda ugu yar X waa in ≥ 0.4mm.Xadka sare ee guddiga culeyska culus ayaa la qaadi karaa, xadka hoose ee guddiga fudud ee culeyska.

2. V-slot ee labada dhinac ee darajo sare iyo hoose ee si khaldan S waa in ay ahaataa in ka yar 0.1mm;sababtoo ah dhumucda ugu yar ee wax ku oolka ah ee xayiraadaha, dhumucda wax ka yar 1.2mm board, waa inaysan isticmaalin habka looxa higgaadda V-slot.

III.Calaamadee barta

1. Deji barta meelaynta tixraaca, sida caadiga ah barta meelaynta ee agagaarka bidixda 1.5 mm ka weyn aagga alxanka ee aan adkaysiga u lahayn.

2. Loo isticmaalo in lagu caawiyo meelaynta indhaha ee mishiinka meelayntu waxa uu leeyahay gunta qalabka PCB garaaf ahaan ugu yaraan laba dhibcood tixraaceed asymmetric, meelaynta PCB oo dhan oo leh barta tixraaca guud ahaan waa guud ahaan booska PCB u dhigma;Qayb ka mid ah meelaynta indhaha ee PCB oo leh barta tixraaca guud ahaan waxay ku taal gabal PCB booska u dhigma.

3. kala dheeraynta rasaasta ≤ 0.5mm QFP (xirmo guri laba jibaaran) iyo kala dheeraynta kubbadda ≤ 0.8mm BGA (xirmada grid array pack) aaladaha, si loo hagaajiyo saxnaanta meelaynta, shuruudaha IC laba geesoodka ah ee dhibcaha tixraaca.

IV.Cidhifka geedi socodka

1. Qaabka dibadda ee looxa balaastikada ah iyo looxa yar ee gudaha, looxa yar iyo looxa yar ee u dhexeeya barta xidhiidhka ee u dhow qalabku ma noqon karaan qalab weyn ama soo baxay, iyo qaybaha iyo cidhifka guddiga PCB waa in looga tago in ka badan. 0.5mm meel bannaan si loo hubiyo hawlgalka caadiga ah ee qalabka goynta.

V. godadka meelaynta looxa

1. meelaynta PCB ee looxa oo dhan iyo meelaynta qalabyada fican ee calaamadaha calamadaha, mabda'a ahaan, garoon ka yar 0.65mm QFP waa in lagu dhejiyaa booskeeda geesoodka;PCB-hoosaadka calaamadaynta jaangooyooyinka waa in loo istcimaalaa labo-labo, oo lagu habeeyey xagal ee walxaha meelaynta.

2. Qaybaha waaweyn waa in lagu daayaa meelaynta tiirarka ama godadka meelaynta, iyada oo diiradda la saarayo sida is-dhexgalka I/O, makarafoonnada, isku-xidhka baytariyada, mikroswitches-ka, isku-xidhka telefoonnada gacanta, matoorada, iwm.

Naqshadeeye PCB wanaagsan, oo ku jira naqshadaynta isku-dhafka, si loo tixgeliyo arrimaha wax-soo-saarka, si loo fududeeyo hab-socodka, loo hagaajiyo waxtarka wax-soo-saarka iyo dhimista kharashka wax-soo-saarka.