Pepa Jena rePCB Rinodzorwa Nemhando Yepamusoro

Ruzivo Rwepamberi: Basa Rakakosha Rekudzora Hunhu Munguva YemaPCB Akanyanya Kuwanda

Mabhodhi emagetsi anodhindwa ane mafrequency akawanda (PCBs) anhasi anoshanda sehwaro hwetekinoroji hwemasystem emagetsi akawanda epamusoro. Kubva pakunonoka kwakanyanya mukutaurirana kwe5G uye nzvimbo chaiyo mukufamba kwesatellite, kusvika pakugadzirisa masaini eradar munzvimbo dzakaoma dzemagetsi uye komputa inoshanda zvakanyanya, kuvimbika uye kurongeka kwemaPCB ane mafrequency akawanda kwakakosha.
Kune nyanzvi dzemhando yepamusoro nemainjiniya, kuziva ruzivo rwakaoma rwekudzora mhando dzePCB kwakakosha. Pepa jena iri rinopa ruzivo rwakadzama muchikamu chimwe nechimwe chekuvimbisa mhando—kubva pakugadzira kusvika pakugadzira—uye rinotsanangura nzira dzekusangana nezvinodiwa zvakanyanya zvekushanda kwezvishandiso zvechizvarwa chinotevera.

Dhizaini: Hwaro hweHunhu
Kurongeka kweDunhu: Kunyatsorongeka ndiko Kunokosha
Mumacircuits ane mafrequency akakwira, kusimba kwechiratidzo kunoenderana nekudzora kwe impedance kwakanyatsonaka. Semuenzaniso, kuchengetedza hunhu hwe impedance mukati me ±5% (kazhinji 50Ω kana 75Ω) kwakakosha, kunyanya mu MaPCB echiteshi che5GKutsauka kudiki, kwakadai sekusawirirana kwe0.1Ω pama frequency e millimeter-wave (24–52GHz), kunogona kutungamira kuratidzwa kwakanyanya, kudzikira kwechiratidzo, uye kuwedzera kwemazinga ekukanganisa kwe bit.
Kuti vaderedze izvi, mainjiniya ekugadzira vanovimba nesoftware yepamusoro yekufananidzira kwemagetsi kuti ivandudze upamhi hwemutsara, nzvimbo, ukobvu hwe dielectric, uye dielectric constant (Dk). Munzvimbo dzakadai dzine mafrequency akawanda, kunyangwe kusawirirana kwemaumbirwo ema microscopic kunogona kukanganisa mashandiro.
Uyezve, topology yekufambisa nzira inofanira kutarisirwa nokungwarira:
● Kureba kwakanyanya kwetrace kunowedzera kunonoka uye kurasikirwa kwechiratidzo.
● Madonhwe matete anowedzera simba rekudzivirira.
● Marongerwo akawandisa anokonzera kutaurirana, izvo zvinofanira kuramba zviri pasi pe:
● Kutaurirana Kwepedyo (NEXT): -30dB
● Kutaurirana Kwemashoko Akareba (FEXT): -40dB
Kune ma interfaces anomhanya zvakanyanya se USB 3.0 kana HDMI, differential pair routing inofanira kuchengetedza kureba kwakaringana kwe ±5mil kuti ive nechokwadi chekuti masaini akavimbika.

Dhizaini yeStackup: Kuenzanisa Fizikisi uye Kugona Kugadzira
MaPCB emazuva ano ane mafrequency akakwira, kunyanya mumafoni nemundege, anowanzo pfuura zvidimbu gumi. Magadzirirwo aya anoda zvinhu zvine dhiki shoma uye dhiki shoma, zvakaita seRogers RO4350B, kuderedza kurasikirwa kwechiratidzo uye kuchengetedza kumhanya kwedata. Zvisinei, zvinhu izvi zvinounza mitengo yakakwira uye kuoma kwekugadzirisa.
Zvikamu zvakakosha zvinosanganisira:
● Kurongeka kwekunyoresa pakati pezvikamu: inofanira kunge iri mukati me ±50μm kudzivirira kusarongeka kana kupfeka zvipfupi.
● Mamiriro ekuputira:
● Tembiricha: 180–220°C
● Kumanikidzwa: 5–10MPa
● Nguva: Maminetsi 30–60
Mapoka einjiniya neanogadzira zvinhu anofanira kushanda pamwe chete kuti ave nechokwadi chekuti magadzirirwo emapuranga anoenderana nehunyanzvi hwemugadziri hwekugadzira.

Kugadzira: Kubva Pazvinhu Zvinokosha Kusvika Pabasa Reunyanzvi
Kudzora Zvinhu Zvisina Kugadzirwa: Hunhu Hwakanaka Kubva Kunobva
Sisitimu yakasimba yekuongorora mhando yechinhu ichi yakakosha. Semuenzaniso:
● Kutsauka kweDk: ≤ ± 0.1
● Df (kurasikirwa kwetafura): ● Kushivirira ukobvu: kudzorwa zvakasimba
● Zvirwere zvinoonekwa: zvakaita semapundu, kupatsanurwa, uye kukwenya zvinofanira kudzivirirwa
Kuchena kwefoil yemhangura uye huwandu hwe prepreg resin zvinokanganisawo mashandiro azvo. Mhangura yakachena kwazvo inoita kuti pave nekusagadzikana kwakaderera, nepo kuyerera kwakakodzera kweresin kuchivimbisa kubatana kwakasimba pakati pezvikamu. Kutora sampuli nguva nenguva uye kuyedzwa kunobatsira kuchengetedza kutevedzera mitemo yeRF-grade.

Kudzora Hunhu hweMaitiro: Kunyatsojeka mune Zvese Zvakadzama
Kucheka:
● Kushivirira upamhi hwemutsetse: ± 0.05mm
● Kufanana kwemavara: Kusadzora zvakanaka kunogona kukonzera kusachekwa kana kuchekwa zvakanyanya, zvichiita kuti dunhu rive rakakanganisika.
Kuboorera:
● Kururama kwenzvimbo yegomba: ± 0.1mm
● Kushivirira dhayamita yegomba: ± 0.02mm
Kuchenesa mushure mekuboorwa kunobvisa marara kudzivirira mapfupi. Kuputira mhangura ye vias kunoita kuti ienderane nemhepo uye ive yakavimbika.
Kuisa machira emagetsi:
● Ukobvu hwepamusoro hwekuputira: 1–3μm
● Kuburikidza nemadziro: 0.5–1.5μm
Kudzora kwakarurama kemikari yemhinduro uye kuwanda kwezvino kunodzivirira matambudziko akaita sema voids, mabubbles, kana delamination, zvichiita kuti ishande kwenguva refu.

Kuongorora Kukundikana uye Matanho Ekudzivirira
Kukundikana Kwemagetsi: Zvinouraya Chinyararire Kusavimbika Kwechiratidzo
Zviratidzo: kuderera kwesimba remusoro, kukanganiswa kwesimba, kutaura kwakanyanyisa, uye kuora kwechimiro chemafungu
Zvinokonzera:
● Kusawirirana kweImpedance
● Kusawirirana kwezvinhu
● Kucheka kana kuputira zvisina kururama
Mhinduro:
● Kugadzirisa magadzirirwo uchishandisa nzira yekufananidzira
● Kuvimbiswa kwemhando yepamusoro yezvinhu
● Kudzora nekugadzirisa maitiro kwakawedzerwa

Zvikanganiso zveMuumbi: Njodzi Dzakavanzika dzeMuviri
Matambudziko akajairika:
● Kubviswa kwechiedza
● Kutyoka kwezvisaririra
● Matunhu mapfupi
● Mavhairasi akavharika
Zvikonzero zvemidzi zvinotangira pakukanganisika kwelamination uye kusarongeka kwekuboorwa kusvika pakutsvina kwepurasitiki. Kugadzirisa izvi kunoda:
● Kugadzirisa maitiro
● Kuongorora otomatiki
● Nzvimbo dzakachena dzekugadzira

Kuvimbika Kwenguva Refu: Muedzo Wechokwadi

Zvinonetsa zvikuru:
● Mapfundo esolder akatsemuka
● PCB warpage
● Kukundikana kwekudzivirira kupisa
Nzira dzekudzivirira dzinosanganisira:
● Kugadzirisa mapurofayiri ekusonesa uye kusarudzwa kwezvinhu
● Kufananidza zvinhu zveCTE mu stackup
● Kudzora kwakasimba kwezvakatipoteredza panguva yekugadzira

Kuenzanisa Maindasitiri: Hunhu seMusiyano

Vagadziri vepamusoro vanoshandisa zvinotevera:
● Zvishandiso zvekugadzira PCB zvakagadzirwa neAI
● Maitiro epamusoro ekugadzirisa otomatiki
● Masisitimu ekuongorora akazara
Zvigadzirwa zvavo zvinosangana nezvinodiwa zvakasimba zve5G, zvemuchadenga, uye zvekutaurirana nesatellite, zvichiratidza mwero wekubudirira kwepamusoro uye kuvimbika kusingaenzaniswi. Kusiyana neizvi, vagadziri vasina kukura vanowanzoshaya dhizaini yepamusoro, kudzora zvinhu, uye kugona kuongorora, zvichikonzera mwero wekukuvara kwakanyanya uye kukwikwidzana kushoma.

Nei Tichifanira Kufara Zvakazara?

Rich Full Joy yakavaka mukurumbira wakasimba muindasitiri yeRF PCB uye indasitiri yebhodhi redunhu repamusoro-soro ne:
● Ruzivo rwakadzama rwekutendeseka kwechiratidzo
● Kugona kudzora mhando padanho rega rega
● Rutsigiro rwakazara kubva pakugadzira kusvika kuchinhu chapera
● Kubudirira kwakaratidzwa muhurongwa hwendege, nharembozha, radar, uye satellite
Tinogamuchira kushanda pamwe chete nenyanzvi dzemhando yepamusoro nemainjiniya vari kutsvaga hunyanzvi mukugadzira maRF PCB. Titeverei kuti muwane rumwe ruzivo sezvatinoramba tichikurudzira hunyanzvi mumunda wePCB une mafrequency akawanda.