Yepamusoro Yekumhanyisa Circuit Board Dhizaini, Kugadzira, uye Gungano

Mumamiriro ezvinhu ari kuramba achichinja-chinja emagetsi epamusoro, pfungwa yebhodhi redunhu rinomhanya zvakanyanya—rinowanzonzi PCB ine frequency yakakura, gungano rePCB rinomhanya zvakanyanya , kana kuti substrate yedunhu rine bandwidth yakawanda—yave hwaro hwakakosha hwezvinhu zvitsva zvakawanda zvemazuva ano. Sezvo mwero wedata uchikwira, zvinodiwa zvekuchengetedza masaini zvichiwedzera, uye zvishandiso zvemazuva ano zvinoda kushanda kwakavimbika zvakanyanya, kukosha kwekuziva matekinoroji ari kumashure kwemabhodhi edunhu aya ane hunyanzvi hwepamusoro hakuna kumbopfuura.

Iri gwara rakazara rinotarisa pane yakadzama tekinoroji ruzivo, musimboti nzira, uye akanakisa maitiro anodiwa kuita mainjiniya, kugadzira, uye kushandisa yakakwirira-kumhanya akadhindwa edunhu mabhodhi (PCBs). Nekuita izvi, isu hatingobatsire mainjiniya, vagadziri, uye nyanzvi dzekutenga zvinhu kuti vanzwisise zviri nani kuomesesa kweaya epamusoro mapuratifomu emagetsi, asi zvakare kuvakurudzira kuti vasvike kune waanovimba naye wekugadzira waanovimba naye-senge Highleap Electronic-yepamusoro-tier ekugadzira uye masevhisi egungano. .

1. Kusarudzwa kwezvinhu zveHigh Speed ​​Circuit Boards

Hwaro hwechero high-speed PCB huri muzvinhu zvayo zvenyama. Kusarudza iyo chaiyo PCB substrate kwakakosha pakuona kutendeseka kwechiratidzo uye kuderedza kurasikirwa kwechiratidzo sezvo kuwanda kwekushanda kunowedzera. High-speed circuit boards inoda zvinhu zvinogona kubata yakakwirira frequencies uye kuchengetedza yakagadzikana maitiro emagetsi, kusanganisira yakaderera dielectric kurasikirwa uye high thermal conductivity.

a. High-Performance Laminates

Sarudzo dzepuratifomu dzakadai sePCIe 6.0 PCB material selection dzinofanira kuongororwa zvichienderana nehurefu hwechiteshi, connector model, BGA escape, via transitions, uye released stackup.

Sarudzo yemidziyo yelaminate inokanganisa zvakananga kuita kwePCB. Zvishandiso zvakajairika zvinoshandiswa mumabhodhi ekumhanya-mhanya zvinosanganisira:

• • PTFE (Polytetrafluoroethylene): Inozivikanwa nekugona kwayo kufambiswa kwemasaini uye yakaderera dielectric kurasikirwa, PTFE yakanakira yakakwirira-frequency application, kusanganisira RF uye microwave magadzirirwo.
  • mhuri dzemhando yepamusoro dze laminate dzine kurasikirwa kwakaderera: Zvigadzirwa zvakaita se laminate ine hunyanzvi hwakaderera uye laminate ine hunyanzvi hwakaderera zvakagadzirirwa mabhodhi ecircuit ane speed speed. Zvinhu izvi zvinopa hunhu hwemagetsi hwakanaka, kusanganisira tangent ine down loss uye stable dielectric constant (Dk).
  • Ceramic-Yakazara Laminates: Izvi zvinopa kuenzana kwekurasikirwa kwakaderera uye kugadzikana kwepamusoro-soro, zvichiita kuti ive yakakodzera kune yakakwirira-speed designs inoda high thermal conductivity.

b. Kuderedza Dielectric Kurasikirwa

Kune maPAM4 links marefu, 112G PCB zvinhu zvinoshandiswa zvinonyanya kubatsira kana dielectric, copper profile, trace geometry, uye nzira yekuyedza zvichionekwa sechirongwa chimwe chete chekudzora chiteshi.

Dielectric kurasikirwa kunoreva kupera kwesimba kunoitika kana chiratidzo chichifamba nePCB zvinhu. Kuderedza kurasikirwa uku kwakakosha kune yakakwirira-kumhanya mabhodhi edunhu. Zvishandiso zvepamberi zvine yakaderera kurasikirwa tangent kukosha, senge yakaderera-kurasikirwa FR4 uye yakakwira-frequency resins, inoshandiswa kukwidziridza kutapurirana kwechiratidzo, kuve nechokwadi chekuti masaini ekumhanya anoramba akasimba pamadaro marefu.

2. Signal Kutendeseka uye PCB Layout Design

Kune vanovaka vanomhanya zvakanyanya vanoda kuenzana kwekuvimbika kwekupisa uye mashandiro echiteshi, kugadzirwa kweNelco N7000-2 HT PCB kunofanirwa kuongororwa kubva pamatanho akatenderwa, copper profile, impedance targets, kuburikidza nedhizaini, uye zvinodiwa pakuedza kugadzira.

Kutendeseka kwechiratidzo nderimwe rematambudziko makuru mukugadzirisa kwepamusoro-speed circuit board. Yepamusoro-kumhanya masaini anotarirwa nekudzikira kunokonzerwa nezvinhu zvakaita se crosstalk, reflection, uye electromagnetic interference (EMI). Yakakodzera PCB dhizaini dhizaini yakakosha pakuchengetedza chiratidzo chemhando uye kuve nechokwadi chekufambisa data kwakavimbika.

a. Impedans Control

Chimwe chezvinhu zvakakosha zveyakakwira-kumhanya PCB dhizaini ndeye impedance control. Kunyatsodzorwa impedance inova nechokwadi chekuti masaini emagetsi anofamba nePCB pasina kuratidzwa kana kuderedzwa kwechiratidzo. Izvi zvinonyanya kukosha kune akakwira-kumhanya edunhu mabhodhi anobata data pagigabit kumhanya kana pamusoro.

• • Microstrip Transmission Lines: Izvi zvinowanzo shandiswa kana chiratidzo chechiratidzo chiri pachikamu chekunze chePCB, padyo nendege yepasi.
  • Stripline Transmission Lines: Aya anoshandiswa kune emukati akaturikidzana uye anopa kumwe kudzivirira kubva kune kunze ruzha, kuve nechokwadi chechiratidzo chekutendeka.

b. Kuderedza Crosstalk uye Noise

Crosstalk, inova kubatanidza kusingatarisirwe kwemasaini pakati pematanho, chinhu chakakosha kunetseka mumabhodhi ekumhanya edunhu. Kuti uderedze crosstalk, vagadziri vanoshandisa nzira dzakasiyana-siyana, izvo zvinova nechokwadi chekuti mapeya emateki anotakura zviratidzo zvinopindirana. Pamusoro pezvo, kushandisa ndege dzepasi uye nzira dzekudzivirira dzakatenderedza nzira dzechiratidzo dzinogona kuderedza ruzha uye kudzivirira kukanganiswa kwemagetsi (EMI).

3. Magadzirirwo Ekugadzirwa Kwepamusoro-soro eMabhodhi Edunhu Epamusoro.

Hardware ye optical ine density yakakura ingada kuvakwa kwe1.6T optical module PCB iyo inobatanidza kuungana kwe fine-pitch, inodzora impedance, dhizaini yekupisa, uye kuongororwa kwekugadzira.

Maitiro ekugadzira epamusoro-anomhanya edunhu mabhodhi ane hunyanzvi, zvinoda hunyanzvi hwepamberi kuti uwane iwo chaiwo geometri uye maitiro ekuita anodiwa pakushanda kwepamusoro-frequency. Aya matekiniki anovimbisa kuti PCB inogona kutsigira yakakwirira-kumhanya masaini nekurasikirwa kushoma kana kukanganisa.

a. Yakanaka-Mutsara Lithography

Fine-line lithography inobvumira kugadzirwa kwemaitiro akamanikana uye madiki madiki akakosha kune akakwira-speed circuit board. Nekushandisa advanced photolithography matekiniki, vagadziri vanogona kuwana kushivirira kwakasimba, vachigonesa kugadzirwa kwemicrovias uye mapofu vias ari akakosha ekufambisa masaini ekumhanya-mhanya pamabhodhi e-multi-layer board.

b. HDI (High-Density Interconnect) Technology

High-Density Interconnect (HDI) tekinoroji inoshandiswa zvakanyanya kune yakakwirira-kumhanya mabhodhi edunhu. HDI mabhodhi anoratidza diki vias, yakakwirira layer kuverenga, uye denser interconnects, zvichiita kuti ive yakanakira compact dhizaini uye yakakwirira-inoshanda maapplication. NeHDI, unogona kuderedza kureba kwenzira yechiratidzo, zvichitungamira kukurumidza kuendesa data uye kuderedzwa kwechiratidzo kurasikirwa.

c. Via Kuzadza uye Microvia Plating

Nokuti mukuru-nokukurumidza redunhu mapuranga, nechokwadi kuti vias zvizere akazadzwa uye plated kwakakosha kuchengetedza chiratidzo unhu. Microvia plating tekinoroji inobvumira kuti vias izadzwe nezvinhu zvinoitisa izvo zvinoderedza inductance uye inopa yakaderera-inodzivirira nzira yeakakwira-kumhanya masaini. Izvi zvinoderedza kunonoka kwechiratidzo uye inovandudza kuita kwese, kunyanya mumagadzirirwo emhando dzakawanda.

4. Thermal Management muHigh-Speed ​​Circuit Boards

Kugadzira kupisa kunonyanya kunetsa pakugadzira mabhodhi edunhu anomhanya-mhanya, kunyanya kune maapplication anosanganisira epamusoro-simba zvikamu kana masekete akarongedzerwa zvakasimba. Thermal manejimendi yakakosha kudzivirira kupisa, kuchengetedza zvikamu, uye kuchengetedza yakakwana chiratidzo chekuvimbika.

a. Thermal Via Design

Thermal vias anobatsira kubvisa kupisa kunogadzirwa nepamusoro-simba zvinoriumba, zvichiriendesa kure nenzvimbo dzakaoma dzePCB. Nokushandisa thermal vias inobatanidza kupisa-sensitive components kune yepasi ndege kana zvimwe kupisa-dissipating layers, vagadziri vanogona kuve nechokwadi chekuti kupisa kwakanyanya kunopararira zvakaenzana uye kubviswa zvinobudirira.

b. Integrated Heat Sinks

Mune zvimwe zviitiko, mamwe mabheji ekupisa anogona kubatanidzwa mukugadzirwa kwekuvandudza kupisa kupisa. Izvi zvinonyanya kukosha mu-high-speed circuit mabhodhi ayo anoshandiswa mu-high-performance computing uye kushandiswa kwemotokari, uko kuchengetedza kutonhora kunoenderana kwakakosha pakushanda uye hupenyu hurefu.

5. Gungano reHigh-Speed ​​Circuit Boards

Kune hardware inobhurwa nekukurumidza, 800G optical module PCB assembly inobatsira kubva mukugadzirwa kwebhodhi rakarongeka, kudzora zvikamu, kubata connector, kudzoreredza mashandiro, uye zvinodiwa pakuedza kushanda.

Kana dhizaini uye kugadzirwa kwepamusoro-kumhanya mabhodhi edunhu (PCBs) kwapera, chikamu chinotevera chakakosha igadziriro yegungano. High-speed PCBs, kunyanya idzo dzinoshandiswa mukuda kunyorera senharembozha, nzvimbo dzedata, uye komputa yepamberi, inoda chirongwa chegungano chinochengetedza kutendeseka kwezviratidzo uku uchivimbisa kuita kwebhodhi rose. Chero kutsauka mukuiswa kwechikamu, kunaka kwekutengesa, kana kutsvaga nzira kunogona kukanganisa kushanda kwePCB, zvichikonzera kuderedzwa kwechiratidzo, kurasikirwa kwemagetsi, kana kutotadza zvachose kwehurongwa. Nokudaro, maitiro chaiwo ekuunganidza akakosha kuchengetedza kushanda kwepamusoro uye kuvimbika.

a. Yakanaka-Pitch SMD (Surface-Mounted Device) Gungano

Rimwe rematambudziko akanyanya mukuunganidza mabhodhi edunhu akakwira kubata zvakanaka-pitch SMDs (Surface-Mounted Devices) uye diki fomu factor zvikamu. Sezvo zvemazuva ano zvemagetsi zvichiramba zvichidzikira muhukuru, izvo zvinoiswa paPCB zvinova zvidiki uye zvakanyanya kuzara. Fine-pitch SMDs-zvikamu zvine ma lead zvakaparadzana zvisingasviki 1mm zvakaparadzana-zvinoda kunyatsotariswa panguva yekuiswa kudzivirira kusarongeka, mapfupi maseketi, kana kukanganiswa kwechiratidzo.

Precision pick-and-place machines inoshandiswa kuisa zvinhu zvidiki izvi zvine huronyo hwakanyanya. Michina iyi inoshandisa yakakwirira-resolution yekuona masisitimu kuenzanisa zvikamu pabhodhi pasi kune micron-level kushivirira. Kuiswa kwacho kunofanirwa kunge kuri kwese-kwekuti kunyangwe kurongeka kushoma kunogona kukonzera kusabatana, zvichikonzera kutadza kwedunhu kana nyaya dzekuvimbika.

Kana izvo zvikamu zvaiswa, laser soldering matekiniki anoshandiswa kubatanidza zvikamu zvakachengeteka kuPCB. Nzira dzechinyakare dzekutengesa, dzakaita sewave soldering, hadzina kukodzera kune-high-density, yakanaka-pitch zvikamu nekuti zvinogona kukonzera kupisa kwakanyanya kuratidzwa uye kukuvadza zvikamu zvinonetsa. Laser soldering, kune rumwe rutivi, inobvumira kushandiswa kwekushisa kwakanyanya munzvimbo, kuve nechokwadi kuti nzvimbo dzakanyatsojeka dzePCB uye zvikamu zvinopisa, izvo zvinoderedza ngozi yekukuvadza kwekushisa uye kuderedza kuderedzwa kwechiratidzo kunokonzerwa nekupisa kwakanyanya.

Laser solder zvakare inogonesa reflow solder kune zvidiki zvikamu. Iyi nzira inonyungudutsa solder paste yakaiswa paPCB, kuve nechokwadi yakasimba, yakavimbika solder majoini. Aya majoini ekutengesa akakosha kuchengetedza yakaderera-resistance kubatanidza, izvo zvinonyanya kukosha mu-high-speed PCBs inotakura masaini epamusoro-frequency.

b. Automated Optical Inspection (AOI)

Mushure mekuita kwegungano, Automated Optical Inspection (AOI) inhanho yakakosha yekuona kunaka uye kuvimbika kwemabhodhi edunhu anomhanya. Masisitimu eAOI anoshandisa makamera ane magadzirirwo epamusoro-soro uye maalgorithms esoftware kuongorora PCB kuti haina kukanganisa here inogona kukanganisa kushanda kwayo. AOI inokwanisa kuona zvakawanda zvakasiyana-siyana zvingangoitika, zvakadai se:

• • Soldering Defects: Kusakwana kana kuwedzeredza solder, kana kutonhora solder majoini, zvinogona kutungamirira kushayikwa kwemagetsi kubata kana kunyange mapfupi maseketi.
  • Component Misplacement: Kuiswa kwechikamu kusiri iko, senge kusarongeka kana kukanganisa kutenderera, zvinogona kuita kuti kubatanidza kutadze kana masaini kuti asafambe nenzira isiriyo.
  • Bridge Connections: Solder mabhiriji, apo solder inobatanidza mapedhi maviri ari pedyo, inogona kukonzera mafupi mafupi, zvichiita kuti kukundikana kwehurongwa.
  • Chikamu Kukuvadza: Panguva yegungano, zvikamu zvinogona kukuvadzwa nekuda kwekupisa kwakanyanya kana mechanical stress, izvo zvinogona kukanganisa kushanda kwavo, kunyanya munzvimbo dzinomhanya-mhanya.

Mune yakakwirira-kumhanya PCB dhizaini, uko kutendeseka kwechiratidzo kwakakosha, chikanganiso chidiki chinogona kutungamira mukuderera kwakanyanya kwekuita. Naizvozvo, masisitimu eAOI anokwenenzverwa kuti aone kunyangwe kutsauka kudiki kubva pajoini yaunoda solder kana kuisa chikamu, zvichideredza zvakanyanya njodzi yekutadza. Aya masisitimu haangonatsiridza kunaka kwemabhodhi asiwo anowedzera hunyanzvi kuburikidza ne automating yakawanda yekuongorora maitiro, kuderedza nguva uye mutengo unobatanidzwa mukuongorora nemaoko.

Zvakare, masisitimu eAOI epamberi akashongedzerwa nehunyanzvi hwekufungidzira hwe 3D hunokwanisa kuongorora majoini anotengeswa kubva kumakona akawanda, kuve nechokwadi chekuongorora kwakadzama kupfuura nzira dzechinyakare dze2D. Izvi zvinonyanya kukosha kune yakanaka-pitch SMDs apo mhando yemasolder joints inogona kunetsa kuongorora nekuona pasina advanced inspection technology.

Panyaya dzesarudzo dzekugadzira dzine chekuita neizvi, Highleap inonyorawo ongororo yeDFM uye turnkey PCB assembly , izvo zvinogona kubatsira kudzivirira zvinyorwa zvisina kujeka mupakeji yekotesheni.

Sei Kururamisa muGungano Zvine Basa kune Yepamusoro-Speed ​​Circuit Boards

Iyo nzira yegungano yemabhodhi edunhu akakwira zvakanyanya kupfuura kungoisa zvikamu uye kuzvitengesa munzvimbo. Iwo epamusoro-frequency masiginecha anofamba nePCB anonyanya kutarisisa kune chero kukanganisa kwemuviri, kungave kuri nekuda kwekushata kwemasoja majoini, isiriyo chikamu chekuisa, kana kunyange misiyano diki mubhodhi pachayo. Semuenzaniso, majoini asina kunaka ekutengesa anogona kuunza kuramba, izvo zvinozokonzera kudzikisira kwechiratidzo kana kutariswa kusingadiwe, zvichikonzera kurasikirwa nedata kana huori.

Uyezve, kutendeseka kwechiratidzo kunovimba zvakanyanya nekumisikidzwa kwezvikamu uye kuchengetedzwa kwekushivirira kwakasimba. Chero shanduko mukuiswa kwechikamu inogona kushandura iyo impedance yenzira yechiratidzo, zvichitungamira kukuratidzira kana kuderedzwa kwechiratidzo pamhepo huru. Nyaya dzakadai dzinonyanya kunetsa kune zvikumbiro mu5G, high-performance computing, kana high-speed data transfer, apo kunyange kutsauka kuduku kunogona kuva nemigumisiro inokosha pakuita.

Saka, kuve nechokwadi chekuti zvikamu zvese zvakaiswa nemazvo uye kuti soldering haina kukanganisa hakusi kungobatanidza bhodhi - ndezvekuvimbisa kushanda kwepamusoro kwechigadzirwa chekupedzisira. Zvingave zvekufambiswa kwepamusoro-soro, kugadzirwa kwemasaini, kana kutumira data, kunaka kwekuunganidza kunokanganisa zvakananga kuita kwebhodhi nekumhanya kwakanyanya.

mhedziso

Iyo dhizaini, kugadzira, uye kuungana kwepamusoro-kumhanya mabhodhi edunhu inzira yakaoma inoda musanganiswa wezvigadzirwa zvepamberi, maitiro chaiwo ekugadzirisa, uye matekinoroji ekugadzira. PaHighleap Electronic, isu tine hunyanzvi mukugadzira maPCB anomhanya-mhanya anoburitsa mashandiro uye kuvimbika kunodiwa neanhasi anonyanyoda maapplication.

Kubva pakuvandudza kusimba kwechiratidzo kusvika pakuona kuti kupisa kwakanaka, zvese zviri mumhinduro dzedu dzemabhodhi edunhu anomhanya kwazvo zvakagadzirwa nemazvo. Kana uchitsvaga mubatsiri akavimbika wekugadzira nekusanganisa maPCB anomhanya zvakanyanya , taura nesu nhasi kuti udzidze zvakawanda nezvekuti hunyanzvi hwedu hunogona sei kubatsira kuita kuti mapurojekiti ako ave echokwadi.

FAQs

1. Ndeapi matambudziko makuru pakugadzira mapuranga epamusoro-soro?

Kugadzira yakakwirira-kumhanya mabhodhi edunhu kunopa akati wandei matambudziko, ane chekuita nekuchengetedza chiratidzo chekuvimbika uye kudzivirira kuderedzwa kwechiratidzo. Nyaya dzakakosha dzinosanganisira crosstalk pakati pemateki, electromagnetic interference (EMI), uye kuve nechokwadi chekudzora kudzora munzira dzese dzechiratidzo. Sezvo kuwanda kwemasaini kunowedzera, kunyangwe kusakwana kudiki muPCB marongero kana zvinhu zvinogona kutungamirira mukurasikirwa nedata kana kutadza kwedunhu. Vagadziri vanofanirwawo kugadzirisa thermal manejimendi, kuve nechokwadi chekuti bhodhi haiwedzere kupisa pasi pekushanda kwepamusoro-frequency.

2. Ndingaita sei kuti ndideredze kurasikirwa kwechiratidzo mumabhodhi epamusoro-soro?

Kurasikirwa kwezviratidzo mumabhodhi ecircuit ekumhanya kwepamusoro kunogona kuderedzwa kuburikidza nekunyatsosarudza zvinhu zvine kurasikirwa kwakaderera kwe dielectric (senge PTFE kana mhuri dze laminate dzakanyanya kurasikirwa), kufananidza kwakakodzera kwe impedance, uye kudzora kurongeka kwezviratidzo. Kushandisa microvias kana blind vias mumagadzirirwo e multi-layer kunogonawo kuderedza kureba kwenzira yezviratidzo uye resistivity. Pamusoro pezvo, kudzivirira zvikamu uye kubatanidza mapuraneti epasi muPCB yese kunogona kubatsira kuderedza kupindira kwekunze uye kuchengetedza kusimba kwezviratidzo.

3. Sei kutonga kwekushisa kuchikosha zvakanyanya mumaPCB anomhanya?

Kutonga kwemafuta kwakakosha nekuti masaini akakwira-frequency anoburitsa kupisa, uye kupisa kwakanyanya kunogona kukanganisa kushanda uye hupenyu hurefu hwePCB inomhanya. High-simba zvikamu, kunyanya mumadhizaini akasimba, anogona kukonzera kuwandisa kwenzvimbo. Thermal vias uye akasanganiswa kupisa sinks ndiwo akajairika mhinduro dzinoshandiswa kuburitsa kupisa zvakanaka. Pasina kutonga kwakakodzera kwekupisa, kuderedzwa kwechiratidzo, kutadza kwechikamu, uye kunyange kusashanda kwedunhu kunogona kuitika.

4. Nderipi basa reAutomated Optical Inspection (AOI) mukuungana kwePCB?

Automated Optical Inspection (AOI) inoita basa rakakosha mukuona zvinokanganisika muPCB gungano zvinogona kukanganisa kuita kwemaseketi ekumhanya kwazvo. Masisitimu eAOI anoshandisa kufungidzira kwepamusoro-soro kuongorora nyaya dzakaita sezvirema zvekutengesa, zvinhu zvakarasika, uye mabhiriji ekutengesa anogona kukonzera mapfupi. Mune yakakwirira-kumhanya maapplication, kunyangwe maminetsi kuremara anogona kukonzera akakosha kuita nyaya. Masisitimu eAOI anobatsira kuona kuti gungano rinosangana nezviyero zvemhando yepamusoro, kuvandudza kuvimbika uye kuderedza njodzi yekutadza.

5. Ndezvipi zvakanakira kushandisa HDI (High-Density Interconnect) tekinoroji mune yakakwirira-kumhanya PCB magadzirirwo?

HDI (High-Density Interconnect) tekinoroji inopa akati wandei mabhenefiti epamusoro-kumhanya PCB dhizaini, kunyanya maererano neminiaturization uye kuita. Nekushandisa diki vias, nhete inoteedzera, uye akawanda layer yekubatanidza, HDI PCBs inogonesa denser chikamu kuiswa uku ichichengetedza chiratidzo chekuvimbika. Izvi zvakakosha kune zvikumbiro zvinoda kumhanyisa data data, sezvo HDI ichidzikisa kureba kwenzira yechiratidzo uye kuramba, kuve nechokwadi chekukurumidza kutumira data nekurasikirwa kwakaderera. HDI tekinoroji yakanakira zvikumbiro mu5G, yakakwira-performance computing, uye mota dzemagetsi, uko compact, yakakwirira-kuita madhizaini inodiwa.