Muindasitiri yemagetsi, akawanda-layer PCB edunhu mabhodhi ave chinhu chikuru chezvizhinji zvekupedzisira zvemagetsi zvigadzirwa zvine zvakabatanidzwa zvakanyanya uye zvakaomarara zvimiro. Nekudaro, iyo yakawanda-layer chimiro inounzawo nhevedzano yekuyedza uye yekuongorora matambudziko.
1. Hunhu hweakawanda-layer PCB redunhu bhodhi chimiro
Multilayer PCB redunhu mabhodhi anowanzo kuumbwa akawanda alternating conductive uye insulating layer, uye zvimiro zvawo zvakaoma uye zvakakora. Iyi yakawanda-layer chimiro ine zvinotevera zvinoyemurika maficha:
Kubatanidzwa kwepamusoro: Kukwanisa kubatanidza nhamba huru yezvigadzirwa zvemagetsi uye matunhu munzvimbo shoma kuti asangane nezvinodiwa zvemazuva ano zvigadzirwa zvemagetsi zve miniaturization uye kushanda kwepamusoro.
Yakagadzika chiratidzo chekufambisa: Kuburikidza neyakajeka wiring dhizaini, kupindira kwechiratidzo uye ruzha zvinogona kudzikiswa, uye kunaka uye kugadzikana kwekufambiswa kwechiratidzo kunogona kuvandudzwa.
Kuita kwakanaka kwekupisa kupisa: Iyo yakawanda-layer chimiro inogona kudzima kupisa zvirinani, kuderedza tembiricha yekushanda yezvikamu zvemagetsi, uye kugadzirisa kuvimbika uye hupenyu hwemidziyo.
2. Kukosha kwekuongororwa kwemaitiro akawanda-layer e-multi-layer PCB circuit board
Iva nechokwadi chemhando yechigadzirwa: Nekuyedza iyo yakawanda-layer chimiro cheakawanda-layer PCB edunhu mabhodhi, anogona kuitika emhando matambudziko, senge mapfupi maseketi, akavhurika maseketi, asina kunaka epakati-layer kubatana, nezvimwewo, anogona kuwanikwa nekufamba kwenguva, nekudaro kuve nechokwadi chemhando yechigadzirwa. uye kuvimbika.
Yakagadziridzwa dhizaini mhinduro: Migumisiro yekuedzwa inogona kupa mhinduro yedhizaini bhodhi dhizaini, kubatsira vagadziri kukwenenzvera wiring marongerwo, kusarudza zvinhu zvakakodzera uye maitiro, uye kugadzirisa redunhu bhodhi mashandiro uye manufacturability.
Deredza mutengo wekugadzira: Kuedza kunoshanda panguva yekugadzira kunogona kuderedza chiyero chezvikara uye huwandu hwezvekugadzirisa, kuderedza mutengo wekugadzira, uye kunatsiridza kugadzirwa kwakanaka.
3. Multi-layer PCB circuit board multi-layer structure test method
Kuedza kushanda kwemagetsi
Kuenderera mberi bvunzo: Tarisa kuenderera mberi pakati pemitsara yakasiyana-siyana pabhodhi redunhu kuti uone kuti hapana mapfupi maseketi kana akavhurika maseketi. Iwe unogona kushandisa multimeters, kuenderera mberi testers uye mimwe michina yekuyedza.
Insulation kuramba bvunzo: Edza kudzivirira kwekudzivirira pakati pezvikamu zvakasiyana pabhodhi redunhu uye pakati pemutsara nepasi kuti uone kana kuita kwekudzivirira kwakanaka. Kazhinji inoedzwa uchishandisa insulation resistance tester.
Chiratidzo chekuvimbika bvunzo: Nekuyedza masaini ekumhanya-mhanya pabhodhi redunhu, kuongorora mhando yekufambisa, kuratidzira, crosstalk uye mamwe ma paramita echiratidzo kuti ave nechokwadi chekuvimbika kwechiratidzo. Zvishandiso zvakaita seoscilloscopes uye masaini analyzer zvinogona kushandiswa pakuyedza.
Kuongororwa kwechimiro chemuviri
Interlayer ukobvu kuyerwa: Shandisa midziyo yakaita sechiyereso chekuyera ukobvu kuyera ukobvu pakati pega ega dhizaini yeakawanda-layer PCB redunhu bhodhi kuona kuti inosangana nezvinodiwa zvekugadzira.
Hole dhayamita kuyerwa: Tarisa dhayamita yekuchera uye kurongeka kwenzvimbo pabhodhi redunhu kuti ive nechokwadi chekumisikidzwa nekubatanidza kwemagetsi zvikamu. Izvi zvinogona kuongororwa uchishandisa boremeter.
Surface flatness bvunzo: Shandisa flatness yekuyeresa chiridzwa uye zvimwe midziyo kuti uone kupfava kwepamusoro kwebhodhi redunhu kudzivirira iyo isina kuenzana pamusoro kuti isakanganise welding uye kuisirwa kunaka kwezvinhu zvemagetsi.
Kuvimbika bvunzo
Thermal shock test: Iyo yedunhu bhodhi inoiswa munzvimbo dzakakwirira uye dzakaderera tembiricha uye inotenderedzwa bhasikoro, uye maitiro ayo anochinja panguva yekuchinja kwekushisa inocherechedzwa kuti iongorore kuvimbika kwayo uye kuramba kupisa.
Vibration bvunzo: Ita bvunzo yevibration pabhodhi redunhu kutevedzera mamiriro ekudengenyeka munzvimbo chaiyo yekushandisa uye tarisa kuvimbika kwayo kwekubatana uye kugadzikana kwekuita pasi pemamiriro ekudengenyeka.
Kupisa flash bvunzo: Isa bhodhi redunhu munzvimbo ine hunyoro uye yakakwira tembiricha kuti uedze kushanda kwayo kwekudzivirira uye kuramba kwecorrosion munzvimbo inopisa.
4. Multilayer PCB circuit board multilayer structure analysis
Chiratidzo chekuvimbika kuongororwa
Nekuongorora mhedzisiro yekuyedzwa kwechiratidzo chechiratidzo, tinogona kunzwisisa kufambiswa kwechiratidzo pabhodhi redunhu, kutsvaga zvikonzero zvekuratidza chiratidzo, crosstalk uye mamwe matambudziko, uye kutora matanho anoenderana ekugadzirisa. Semuenzaniso, iwe unogona kugadzirisa kurongeka kwe wiring, kuwedzera kupikisa kwekugumisa, kushandisa zvidziviriro zvekudzivirira, nezvimwewo kuti uvandudze hutano uye kugadzikana kwechiratidzo.
thermal analysis
Uchishandisa thermal analysis software kuti uongorore kupisa kwekushisa kweakawanda-layer PCB edunhu mabhodhi, unogona kuona kugoverwa kwenzvimbo dzinopisa pabhodhi redunhu, kukwidziridza dhizaini yekubvisa kupisa, uye kugadzirisa kuvimbika uye hupenyu hwedunhu redunhu. Semuenzaniso, iwe unogona kuwedzera kupisa kunyura, gadzirisa marongerwo emagetsi emagetsi, sarudza zvinhu zvine zvirinani kupisa zvivakwa, nezvimwe.
kuvimbika kuongorora
Zvichienderana nemhedzisiro yekuvimbika kwekuyedzwa, kuvimbika kweakawanda-layer PCB redunhu bhodhi kunoongororwa, zvingangoita kutadza modes uye isina kusimba malink anoonekwa, uye anowirirana ekuvandudza matanho anotorwa. Semuenzaniso, dhizaini yedhizaini yemabhodhi edunhu inogona kusimbiswa, kunaka uye kushorwa kwezvinhu zvinogona kuvandudzwa, uye maitiro ekugadzira anogona kugadziridzwa.
Multi-layer chimiro kuyedza uye kuongororwa kweakawanda-layer PCB edunhu mabhodhi inhanho yakakosha mukuona kunaka uye kuvimbika kwemidziyo yemagetsi. Nekushandisa nzira dzekuyedza dzinoshanda uye nzira dzekuongorora, matambudziko anomuka panguva yekugadzira, kugadzirwa uye kushandiswa kwemabhodhi edunhu anogona kuwanikwa uye kugadziriswa nenguva, kuvandudza mashandiro uye kugadzirwa kwemabhodhi edunhu, kuderedza mutengo wekugadzira, uye kupa rutsigiro rwakasimba kune. kuvandudzwa kweindasitiri yemagetsi. rutsigiro.