Waligaa ha dhayalsanin PCB Guddiyada Half-Hole
Waa maxay godka nuska PCB? Fiisooyin badhkood waa godadka godadka laga qoday ee ku teedsan xuduudaha PCB ee ujeedooyinka wax soo saarka. Marka godadka lagu dhejiyo naxaas, cidhifyada waa la gooyaa si godadka soohdinta ku yaal ay kala badh u noqdaan. Cidhifyada PCB-gu waxay u egyihiin dusha dahaadhsan oo naxaas ku dhex leh godadka.
Maxay tahay ujeedada godadka nuska ah? PCB-yada modul-ka ah waxaa asal ahaan loogu nashqadeeyay iyada oo kala badh ah, badiyaa loogu talagalay fududaynta alxanka, cabbirka moduleka yar iyo shuruudaha shaqada. Caadi ahaan, god nus ah ayaa loogu talagalay PCB cidhifka godka ah, ee gong qaab gong badhkii, oo ka tagaya nus ka mid ah godka PCB-ga, oo loo yaqaanno god nus ah.
Naqshadeynta wax soo saarka ee taarikada godka nuska ah
1. Dalool nuskii ugu yar
Awoodda wax soo saarka ugu yar ee nuska godka waa 0.5mm, dhismuhu waa in daloolku uu ku yaal bartamaha khadka profile, taas oo macnaheedu yahay in ay jiraan godadka 0.25mm ee saxanka. Haddii kale, naxaasta derbiga daloolka ayaa dhici doona inta lagu jiro habka wax soo saarka, taasoo keentay in aan dalool naxaas ah, alaabta la dhammeeyey lama isticmaali karo.
2. Fogaanshaha nus-dalool
Daloollada ugu yar ee la dhammeeyey ee guddiga godka nuska ah waa 0.5mm, daloolkuna wuxuu u baahan yahay in lagu magdhabo habka wax soo saarka ka dib magdhowga nuska daloolka iyo nuska nuska ah wuxuu u baahan yahay in la hubiyo ≥ 0.35mm, sidaas darteed naqshadeynta farqiga godka nuska wuxuu u baahan yahay inuu noqdo ≥ 0.45mm. Dalool nus ah oo u dhiganta suufka xariiqda magdhowga ka dib si loo hubiyo in ≥ 0.25mm, dalool nus ah oo u dhiganta suufka daaqadaha iyo suufka waa in la sameeyaa inta u dhaxaysa buundada maaskarada.
3.Ka ilaali isku-ururinta daasadda gaaban wareegga gaaban
Naqshadeynta biinanka leydiga ah, dalool nus-dalool ah iyo ballac suuf ah, iwm, waqtigan injineerada qaar ayaa laga yaabaa inay kordhiyaan ballaca suufka si ay u hubiyaan in giraanta daloolka, iska indha tiranaanta suufka ee habka alxanka golaha taasoo horseedaysa xitaa daasad gaaban wareeg ah. Dhab ahaantii, nus-dalool kaliya u baahan tahay in la sameeyo godka si giraanta alxanka noqon kartaa, iyada oo aan la kordhiyo width ee pin oo dhan, sababtoo ah kala bar godadka ka baxsan guddiga waa la shiiday doonaa off marka qaabaynta.
4. Collage nus-dalool
Nashqada looxa-daloolka nuska ah waa inuu lahaadaa meel dalool nus ah oo leh kala fogaansho bidix, taasoo sahlaysa in la qaabeeyo oo la shiilo godka nuska ah. Isku-xidhka qaabaynta PCB-ga way iska indho-tiri doontaa qodobkan, sababtoo ah tiro yar oo injineero ah ayaa tagay warshadda PCB si ay u fahmaan sida godka nuska loo sameeyay. Wixii alaabta gaarka ah nus-dalool, inta badan sida ay looxyada caadiga ah oo aan kala dheerayn collage V-CUT, taasoo keentay in naxaas nus-dalool by mindida V-CUT jeexjeexay godka ay sababeen naxaas lahayn, alaabta lama isticmaali karo.
Wax-soo-saarka saxan-daloola-yar
1. Qeexida saxan nus dalool ah
Dalool nus waxa loola jeedaa naqshadeynta godka metallization nus guddiga, kala bar ee guddiga ka baxsan, wax soo saarka u baahan yahay derbiga godka maqaarka naxaasta in la hayo godad qalab. Qulqulka geeddi-socod: Qodista → Immersion naxaas → dahaadhida sabuuradda → lakabka sare ee xariiqda → dajinta garaafka
2.processing Afyare dhererka nus
Marka godka nusku yahay dalool dalool ah, waxaa lagama maarmaan ah in lagu daro ∮0.8-1.1mm dalool hage ah oo ku yaal cidhif kasta oo dalool ah. Daloollada hagaha waxay u baahan yihiin in si gooni ah loo geliyo lakabka godad nuska ah si looga hortago diiqada aan sinnayn, maqaarka naxaasta ah, iyo xagga hore ee daloolka nuska la shiiday si loogu daro habka laba-qodista.
3. Gong cajalad badh-dalool ah
Saxanka daloolka nuska ah wuxuu u baahan yahay in laga sameeyo jir xiran oo ballaciisu yahay 1.6mm, laguna magacaabo GKO2 (dalool nus shiidan ka hor intaan la xoqin). Samee isku-dhafka, waxay u baahan yihiin in la sameeyo GKO2 (dalool badhkii la shiiday ka hor etching) gudaha SET, iyo aagga xiran ma geli karo saxanka, bartani waa mid aad u muhiim ah, si loo fududeeyo qaabka sawirka ee cajaladda gong-gong-gong si loo fududeeyo sawirka cajalad gong ah si loo aqoonsado aagga nuska godka.
4. Isku xirka godka nuska ah
Haddii godka nuska ah loo keeno sidii daahyo oo ay ku wareegsan yihiin godad nus ah, mid kasta oo ka mid ah afarta gees ee buundada waa inuu ka weynaadaa 2mm si looga hortago in looxa uu carqaladeeyo habka wax soo saarka. Dhammaan agagaarka SET-godka nuska ah, si loogu daro godadka shaambada ee geesaha guddiga si ay isugu xiraan, marka geesaha gong gong nus godadka xiriirka ka yar 1.6mm, looma baahna in lagu daro godadka shaambada. Looxyada kala qaybsan si toos ah ayaa loo jebin karaa.
5. Half-dalool, wax soo saarka khadka qodida
Qulqulka guddiga nuska ah iyo qodista guddiga caadiga ah waxay noqon kartaa magdhow caadi ah. Daloollada ugu yar ee nuska ah ee la dhammeeyey waa 0.5mm, qaabka guddiga nuska ah waa mid caadi ah goynta naxaasta, ka dibna xargaha xarriiqda caadiga ah, kala dheereynta suufka ≥ 0.25mm, si looga hortago alaabta la dhammeeyey alxanka xitaa wareegga gaaban.
6. Alxanka daloolka nusku wuxuu caabiyaa wax soo saarka
Looxa badh-daloolka xiran meel u baahan in la furo daaqada, (haddii looxa-god badhkii meesha xiran ma furo daaqadu waxay u horseedi doontaa in derbi god nus god leh khad galay).
Dalool nus ah oo u dhiganta khadka u dhexeeya suufka ma furi karo daaqada, haddii aadan haysan karin buundada waxay u baahan tahay in la xaqiijiyo macaamiisha. Waxaa lagu talinayaa in la beddelo masaafada u dhaxaysa godka nuska ah, haddii aadan hubin karin in fogaanta suufku ay fududahay in la alxan karo xitaa daasadaha.
Habka wax soo saarka ee saxanka nuska ah waa ka dhib badan yahay saxanka caadiga ah, qiimaha qaraabada ayaa sidoo kale ka sarreeya. Haddii aadan isticmaalin Huaqiu DFM si aad horayba u hubiso, waxay u horseedi kartaa xisaabinta khaldan ee kharashka wax soo saarka ee alaabta, ka dibna ogaanaya jiritaanka nuska daloolka alaabta marka la soo saaro, taas oo dib u dhigi doonta wareegga wax soo saarka ee alaabta R & D.
