Gwaro rekugadzira stencil aperture rePCBA inoshanda zvakanaka
Zviri Mukati
- Nheyo dzekugadzira stencil aperture
- Mitemo yeArea Ratio uye Aspect ratio
- Kugadziriswa kweAperture kwezvikamu uye ma thermal pads
- Zvinokonzera mutengo westencil uye zvekutumira muunganidzi wako
KuHighleap Electronics, tinogadzira maPCB uye tinoshandisa SMT assembly builds zuva rega rega. Dhizaini yemastencil haisi nyaya yemhando yepamusoro chete, asi inyaya yemutengo. Nzira chaiyo yekuvhura mapete inodzivirira kugadziriswa patsva uye kunonoka kwemitsara, nepo stencil chaiyo ichidzivirira kubhadhara sarudzo dzausingade. Gwaro iri rinotsanangura mitemo inoshanda yekuvhura mapete estencil uye zvinokonzeresa mutengo izvo vatengi vanofarira.
Nheyo dzekugadzira stencil aperture
Stencil inosungirirwa paste inoendesa namatidza pamaPCB pads panguva yekudhinda. Aperture yestencil ndiyo gomba rinotsanangura kuti paste inoiswa kupi uye kuti paste yakawanda sei inoburitswa. Kunyangwe kana marongerwo ePCB yako ari akarurama, nzira isina kunaka yekuvhura inogona kukonzera paste isina kukwana, paste yakawandisa, bridge, solder balling, kana component float panguva yekudzokorora.
Kushanda sei kwekutamisa paste
- Squeegee inomonera paste yesolder pamusoro pestencil
- Namata inozadza buri rega rega remuboo
- Stencil inoparadzaniswa nePCB
- Kuburitswa kwepaste kubva pamadziro akazaruka uye zvakasara pamapedhi
Zvishandiso zvakakosha zvinotungamira mhedzisiro yekudhinda
- Aperture size saizi yekuvhura inogona kuderedzwa kana kugadziriswa zvichienzaniswa nehukuru hwepedhi
- Ukobvu hwestencil vhoriyamu inotyaira zvakananga inowanzova 0.10mm kusvika 0.15mm zvichienderana nepitch uye musanganiswa wechikamu
- Aperture shape mapatani emahwindo emakona akatenderera erectangle
- Hunhu hwemadziro Madziro akapfava anovandudza kusunungurwa uye anoderedza kuwanda kwekuchenesa
Kuverenga vhoriyamu yekuisa pasi
Vhoriyamu yeNamatidza = Nzvimbo yeAperture × Ukobvu hweStencil
Muenzaniso: 0.5mm × 1.0mm aperture, 0.12mm stencil
Vhoriyamu = 0.5 × 1.0 × 0.12 = 0.06mm³ = 60 nanoliters
Kana uri kugadzirira pasuru yakazara yekugadzika PCB, sarudzo dzestencil dzinofanira kuenderana nedata rako rese rekugadzira. Iyi rondedzero inobatsira kudzivirira kushaikwa kana kusaenderana kwemafaira:
Zvinodiwa zvefaira reAssembly.
Mitemo yeArea Ratio uye Aspect ratio
Zviyero zviviri zvinofanotaura kana paste ichabuda zvakanaka kubva muburi. Kana zviyero zvadzikira zvakanyanya, paste inonamira pamadziro eburi uye zvinhu zvinoiswa paburi zvinova zvisingawirirane. Ndipo apo vatengi vanobhadhara kaviri, kutanga nestencil isingadhindwe zvakanaka, uye vozobhadhara patsva, nguva yekuchenesa, uye kunonoka kwekugadzirwa.
Chiyero chenzvimbo
Chiyero cheNzvimbo = Nzvimbo yeAperture / Nzvimbo yeMasvingo
Yekuvhura kwerectangular
Chiyero cheNzvimbo = (L × W) / [2 × T × (L + W)]
L = kureba W = upamhi T = ukobvu hwestencil
| Chiyero chenzvimbo | Tarisiro yekuburitsa namatidza | Zvinoreva kugadzirwa |
|---|---|---|
| > 0.66 | Muganho wakasimba | Kudhinda kwakajairika kwestencil uye kwakasimba |
| 0.50 kuna 0.66 | Inoshanda nekugadzirisa | Ungangoda stencil yakatetepa kana kugadzirisa chimiro |
| High risk | Kazhinji inoda stencil kana kuvandudzwa kwemaitiro |
Kuonekwa reshiyo
- > 1.5 mukana wekusunungurwa wakanaka kwazvo
- 1.0 kuna 1.5 inoshanda zvakanaka nestencil yepamusoro uye kudzora maitiro
- kazhinji kusunungurwa kusina kugadzikana funga nezve stencil yakatetepa kana kusiya basa
Kugadziriswa kweAperture kwezvikamu uye ma thermal pads
Mukubatanidza PCB, kushandisa aperture 1 kusvika 1 to pad rule kwese kwese hazviwanzo shandiswa zvakanaka. Chinangwa ndechekuisa paste vhoriyamu yakakodzera pamapads akakodzera uku uchideredza bridge, voiding, uye component float.
Kuderedza mukana wekuvhurika
- Thermal pads kuderedza kufukidzwa kwese kudzivirira kuyangarara uye kubatsira kubvisa magasi
- Via in pad kuderedza kuvhurika kuti udzivise kunama mumavias
- Kudzora matombo eguva kuenzana kwema "chip pads" kana rumwe rutivi rwuchinyanya kupisa
Kuwedzera kwevhudzi
- Bapiro reGull nemutungamiri weJ zvingada kuwedzera kwakarongwa kuti fillet iumbwe
- Mativi makuru ekubatanidza zvingada vhoriyamu yakawanda zvichienderana nehuremu hwemutobvu
- Pini muchina wekunamira kuyererazve kwemvura kuburikidza nemaburi kunoda kunamirwa kwakagadzirwa mumaburi
Kugadzirisa chimiro che aperture
- Makona akapoteredzwa inovandudza kuburitswa kwemaburi madiki uye inoderedza kunamira kwepaste
- Ndiro yekumba kushandiswa kazhinji pamutsetse wakanaka kunoita kuti pave nenjodzi yekubatanidza tambo.
Maitiro ekuisa mahwindo ekupisa
- Kufukidzwa kwese kazhinji 50 kusvika 80 muzana yenzvimbo yepad
- muenzaniso mahwindo madiki akawanda pachinzvimbo peburi rimwe chete rakasimba
- Maburi emahwindo kupa nzira dzekubuda nemhepo uye kuderedza njodzi yekubuda kwemhepo
- Edge clearance chengeta paste kumashure kubva pamucheto wepedhi kuti uderedze kusvinwa
Tora Ongororo yeDhizaini yeStencil
Zvinokonzera mutengo westencil uye zvekutumira muunganidzi wako
Vatengi vazhinji vanobvunza mubvunzo uri nyore, kuti stencil inogadzirwa ne solder paste inodhura marii. Mhinduro chaiyo inoenderana nePCB yako uye stencil specification. Pakuumbwa kwePCB, mutengo wakaderera westencil hausi nguva dzose mutengo wakaderera kana zvichikonzera kusagadzikana kwekudhinda, kucheneswa zvakanyanya, kana kugadziriswazve. Heano madhiraivha emari anonyanya kukosha mukugadzirwa chaiko.
Zvinotungamira mitengo yestencil
- Rudzi rwestencil mastencil ane furemu anodhura kupfuura mastencil asina furemu asi anokurumidza kugadzirwa
- Ukobvu hwestencil ukobvu husingawanzoitiki hunogona kuwedzera mutengo uye nguva yekuitora kunyanya kana mutengesi asina kuichengeta
- Stencil yedanho kudzika kana kuwedzera mitengo kunowedzera nekuda kwekuwedzera kwekugadzira michina uye kudzora maitiro kwakasimba
- Kugona kupinza zvakanaka maburi madiki kwazvo angada kupedzisa kwemhando yepamusoro kana maitiro ekugadzira stencil ane hunyanzvi.
- Nano coating inowedzera mari asi inogona kuderedza kunamira kwepaste nenguva yekuchenesa pamipata midiki
- Raira vhoriyamu mastencil emuenzaniso mumwe chete anodhura zvakanyanya pachidimbu chimwe nechimwe kupfuura akavakwa kakawanda
Maitiro ekuderedza mutengo westencil pasina kuwedzera njodzi yekuungana
- Shandisa ukobvu hwakajairika kana chidimbu chako chidiki chichibvumira pane kumanikidza stencil yekukwira
- Chengetedza mastencil ematanho ekugadzira mabhodhi epitch akasanganiswa chaiwo apo pitch yakanaka nezvikamu zvikuru zvemagetsi zviripo pamwe chete
- Shandisa nzira yekugadzirisa chimiro che aperture usati wabhadhara sarudzo dze stencil dzakakosha
- Goverana zvidimbu zvako zvemapedhi nemasaizi madiki epedhi neassembler kuitira kuti vasarudze ukobvu husingadhuri zvakanyanya.
Ruzivo rwekutumira kuti mitengo yestencil ive chaiyo uye kuti uongorore
- Gerber paste zvikamu pamusoro nepazasi
- Rondedzero yebhodhi neruzivo rwekugadzirisa magungano kana zvichibvira
- Rondedzero yezvinhu zvakakosha inotarisa padanho repasi QFN QFP BGA uye mapasipi madiki
- Chero matambudziko anozivikanwa akadai sekuvakwa kwematombo kana kuvakwa kwezvivakwa zvekare
Njodzi dzemastencil nekudhinda dzinofanira kuongororwa sechikamu chemaitiro ekugadzira. Mainjiniya edu anosanganisira kuongororwa kwakabatana nestencil muongororo yese yekugadzirira kuvaka:
ongororo yeDFM yemahara.
Sarudzo dzemastencil dzinoenderanawo nemitemo yePCB yekugadzira zvinhu zvakaita sekuti mafiducials anodzivirira zvinhu uye nzira dzepaneru. Kuti uwane runyorwa rwezvinhu zvinoshanda zvinotarisa pakugadzira zvinhu, ona:
Mitemo yekugadzira PCB assembly.
Bata Highleap Electronics kuti uwane nzira yekugadzirisa stencil aperture uye mazano anotarisa pamutengo. Kugovana Gerbers yako paste layer pamwe nekukwira kwepasi kwePCB yako kunotibatsira kupa zano rekugadzira stencil thickness uye aperture strategy inoenzanisa mutengo negoho.
paHighleap Electronics
Helen anotsigira zvikwata zvemainjiniya zvepasi rose nekugadzira nekugadzira maPCB kubva pakugadzira kusvika pakugadzira, zvichibatsira mapurojekiti kubva pakugadzira maPCB nekukurumidza kusvika pakugadzirwa kwakasimba. Ruzivo rwake rwunosanganisira mabhodhi eRF ane mafrequency akawanda, ma "stackups" akaomarara, matekinoroji ePCB ane rigid-flex, uye flex muindasitiri dzakasiyana siyana.
Nekushandura zvinodiwa zvehunyanzvi kuita zvirongwa zvekugadzira zvinoshanda, anobatsira vatengi kuvandudza kugona kwekugadzira, kuderedza njodzi, uye kugadzirisa mutengo nenguva yekuunza zvigadzirwa—uku achichengetedza mhando yakafanana pahukuru.
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Nzira yekuwana sei quote yePCBs
Rega timhanyire DFM/DFA ongororo yako uye tidzokere kwauri neshumo.
Unogona kurodha mafaera ako zvakachengeteka kuburikidza newebhusaiti yedu.
Isu tinoda ruzivo rwunotevera kuti tikupe iwe quote:
-
- Gerber, ODB++, kana .pcb, spec.
- BOM rondedzero kana iwe uchida kusangana
- uwandu
- Kuchinja nguva
Pamusoro pekugadzira PCB, isu tinopa huwandu hwakakwana hwemagetsi masevhisi, anosanganisira PCB dhizaini, PCBA (Yakadhindwa Circuit Board Assembly), uye turnkey mhinduro. Kunyangwe iwe uchida rubatsiro neprototyping, dhizaini yekusimbisa, kutsvagisa chikamu, kana kugadzirwa kwakawanda, isu tinopa yekupedzisira-kusvika-kumagumo rutsigiro kuti uve nechokwadi chekubudirira kweprojekiti yako. Kune masevhisi ePCBA, ndapota ipa BOM yako (Bhiri reZvinhu) uye chero mirairo yegungano. Isu tinopawo DFM/DFA ongororo yekukwidziridza zvigadziriso zvako zvekugadzira uye kusangana, kuve nechokwadi chekuita kwakatsetseka kwekugadzira.