Si loo gaaro wanaagNaqshadeynta PCB, marka lagu daro in guud ahaan qaabeynta marinnada socodka, qawaaniinta safka ballaadhka ah iyo kala-dheereynta ayaa sidoo kale muhiim ah. Taasi waa sababta oo ah ballaca safka iyo kala dheereynta go'aaminta waxqabadka iyo xasilloonida guddiga wareega. Sidaa darteed, qodobkaani wuxuu ku siin doonaa hordhac faahfaahsan oo ku saabsan xeerarka naqshadeynta guud ee ballanta PCB ee PCB-ga iyo kala dheereynta.
Waxaa muhiim ah in la ogaado in dejinta softiweerka tooska ah in si sax ah loo habeeyo oo jeegga xeerka loo yaqaan 'DRC' waa in la xoojiyaa ka hor intaan la marin. Waxaa lagula talinayaa in la isticmaalo 5mil grid si loo jaro, iyo dhererka isku midka ah 1mil Grid waxaa lagu dejin karaa iyadoo lagu saleynayo xaalada.
Xeerarka PCB ee ballaadhka PCB:
1.Baarku waa inuu marka hore la kulmaaWaxsoosaarka Awooddawarshadda. Xaqiiji soo-saareha wax soo saarka ee macaamilka oo go'aamiya awooddooda wax soo saarka. Haddii aan loo baahnayn baahiyo gaar ah oo uu macaamiisha bixiyo, tixraac shaashadda naqshadeynta naqshadeynta ee khilaafaadka ballaca.
2.Camal jirtoQaab-dhismeedka: Iyada oo ku saleysan dhumucda guddiga ee lasiiyay iyo shuruudaha lakabka ee macaamiisha, xulo nooca ku habboon ee ku habboon. Deji xargaha ballaadhka sida ku xusan ballaca loo xisaabiyey gudaha moodalka eedda. Qiyamka caqabadaha guud ee guud waxaa ka mid ah 50ω-ga, kala duwanaanshaha 90ω, 100ω, iwm Loogu talagalay lakabka lakabka PCB ee caanka ah sida tixraaca hoose.
3.As oo lagu muujiyey jaantuska hoose, sadarka xariiqda waa inuu buuxiyaa shuruudaha awoodda-qaadista ee hadda jira. Guud ahaan, iyadoo lagu saleynayo waayo-aragnimada iyo tixgelinta marinnada socodka, qaabeynta sadaqada korantada waxaa lagu go'aamin karaa Tilmaamaha soo socda: Sare 10 ° C, dhumucdii 20mil ee safka ah ayaa wax ka qaban kara culeyska guud ee 1A; For 0.55 dhumuc weyn oo naxaas ah, ballac 40 milyan oo sadar ah ayaa wax ka qaban kara xad-dhaafka guud ee 1a.
4. Ujeeddooyinka naqshada guud, ballaca xariiqda waa in laga doorbidayaa in lagu xakameeyo 4mil, oo buuxin kara awooda wax soo saarka ee ugu badanSoosaarayaasha PCB. Naqshadaynta xaaskeena xakamaynta carqaladeysan (inta badan 2-lakab lakab ah), naqshadeynta ballanta ballaca ee ka sarreysa 8mil ayaa gacan ka geysan kara yareynta wax soo saarka PCB.
5. Tixgelidhumucyaha naxaas ahdejinta lakabka u dhigma ee marinnada. Qaado 25. Isku day inaad u qorto naqshadeynta ballaadhka dulsaarka ee ka sarreeya 6MIL. Kaaqa dheer naxaasta, ballaca ballaaran ee khadka tooska ah. Weydiiso shuruudaha wax soo saarka ee warshadda loogu talagalay naqshadaha qafiifka ee naxaasta ah.
6. Loogu talagalay naqshadaha BGA iyo 0.65mm-yada iyo 0.65mm, ballaca khadka 3.5mil ah ayaa loo isticmaali karaa qaybaha qaarkood (waxaa lagu xakamayn karaa xeerarka naqshadeynta).
7. Gudiga HDINaqshadeeyayaashu waxay isticmaali karaan ballac 3Mil ah. Naqshado leh ballacyada khadka tooska ah ee ka hooseeya 3Mil, waxaa lagama maarmaan ah in la xaqiijiyo awoodda wax soo saarka ee warshadda ee macaamilka, maadaama qaar ka mid ah soo-saareyaasha ay awood u yeelan karaan oo keliya ballacyada 2MIL-ah ee ballanta ah (waxaa lagu xakamayn karaa xeerarka naqshadeynta). Baaxadda khafiifka ah ee khadadka khafiifka ah waxay kordhiyaan qiimaha wax soo saarka waxayna kordhiyaan wareegga wax soo saarka.
8. Haddii boosku xadidan yahay, ballaca xariiqda waa in lagu xakameeyaa boqolkiiba 8mil.
9. Calaamadaha RF waa in lagu maareeyaa khadadka dhumucduhu, iyadoo la tixraacayo lakabyo ku dhow iyo carqalad lagu xakameeyo 50ω. Calaamadaha RF waa in laga baaraandegayaa lakabyada kore, iyadoo laga fogaado lakabyada gudaha iyo yareynta adeegsiga vias ama isbedelka lakabka. Calaamadaha RF waa in lagu hareereeyaa diyaarad dhulka, iyadoo lakabka tixraaca loo doorto inuu yahay naxaasta GND.
Xeerarka kala-soocidda PCB
1. Fiirinadu waa inay marka hore la kulanto awoodda ka shaqeynta warshadda, iyo kala-goynta khadka waa in ay la kulmaan awoodda wax soo saarka ee warshadda, guud ahaan lagu xakameeyo 4 mil ama wixii ka sareeya. Loogu talagalay Naqshadeynta BGA 0.5mm ama 0.65mm oo kala dheereyn ah, xadka kala-sooca ah ee 3.5 mil ayaa loo isticmaali karaa meelaha qaarkood. Naqshadeynta HDI waxay dooran karaan xariiq dherer ah 3 mil. Naqshadeeyayaasha ka hooseeya 3 mil waa inay xaqiijisaa awoodda wax soo saarka ee warshadda waxsoosaarka ee macaamilka. Qaar ka mid ah soosaarayaasha ayaa leh awood wax soo saar ah oo ah 2 mil (lagu xakameeyay aagagga naqshadeynta gaarka ah).
2. Kahor qaabeynta qaanuunka kala-goynta khadka, ka fiirso shuruudaha qamiirka naxaasta ah ee naqshadda. Wixii 1 ounce naxaas isku day inaad joogtid fogaan 4 mil ama wixii ka sareeya, iyo 2 ounce naxaas ah, iskuday inaad joogteeyso fogaan 6 milyan ama wixii ka sareeya.
3. Naqshadaynta masaafada ee lammaanaha calaamadaha kaladuwan waa in loo dejiyaa iyadoo la raacayo shuruudaha xayiraadda si loo hubiyo kala dheereynta saxda ah.
4. Wired-ka waa in laga fogaadaa guddiga oo isku day inaad hubiso in qaabka guddiga uu yeelan karo dhul (GND) Vias. Hayso masaafada u dhaxaysa calaamadaha iyo geesaha gudiga oo ka sarreysa 40 mil.
5. Sint-ka lakabka korantada waa inuu lahaadaa masaafo ugu yaraan 10 mil oo ka socda lakabka GND. Masaafada u dhaxaysa awoodda iyo awooda awooda korantada waa inay ahaadaan ugu yaraan 10 mil. Qaar ka mid ah ICS (sida Bgas) oo leh kala dheereyn yar, masaafada ayaa si ku habboon loogu hagaajin karaa ugu yaraan 6 mil (oo lagu xakameeyay aagagga naqshadeynta gaarka ah).
6. Waxaa la sameeyaa calaamadaha abtirsiinta, kala duwanaanshaha, iyo calaamadaha analogga waa inay lahaadaan masaafo dhan 3 jeer ballac (3w) ama ku hareereysan diyaaradaha (GND). Masaafada u dhaxaysa khadadka waa in lagu hayaa 3 jeer ballac ballaadhka si loo yareeyo crosstalk. Haddii masaafada u dhaxaysa xarumaha laba sadarka aysan ka yarayn 3 jeer ballaadhka sadaqada, waxay ilaalin kartaa 70% garoonka korantada ee u dhexeeya khadadka iyada oo aan wax faragelin ah lahayn, kaas oo loo yaqaan Mabda '3-ta
7. Associals lakabka lakabka ah waa inuu ka fogaado fiilooyinka isbarbar socda. Jihada wadooyinka waa inay sameysaa qaab-dhismeedka orthogonal si loo yareeyo croslaral-ka aan loo baahnayn.
8. Marka aad ku dul saarto lakabka dusha sare, ha fogaan ugu yaraan 1mm oo ka soo baxa godadka kor u kaca si looga hortago wareegga gaagaaban ama xadka jiifka oo ka soo baxa walaaca. Aagga agagaarka godadka daboolka waa in la nadiifiyaa.
9. Marka loo qaybiyo lakabyada korantada, iska ilaali qaybo aad u kala qaybsan oo aad u kala qaybsan. Hal diyaaradood oo awood ah, iskuday inaadan haysan wax ka badan 5 Awoodda Awoodda, oo ay ka doorbidaan 3 calaamadaha awoodda, si loo hubiyo in sikasta oo aad u sii wado oo ka tanaasulka calaamadaha kala-goysyada lakabyada ku xiga.
Qeybaha diyaaradda waa in loo hayaa sida ugu macquulsan ee suuragalka ah, iyada oo aan laheyn qeybo yar ama gabadh qaabeeya, si looga fogaado xaaladaha ay ku badan yihiin oo dhexda ay yar tahay. Awoodda hadda jirta ee hadda waa in lagu xisaabiyaa iyadoo lagu saleynayo ballaca ciriiriga ah ee ah ee loo yaqaan 'Perper'.
Shenzhen canke pcb co., ltd
2023-9-16
Waqtiga Post: Sep-19-2023
