GPU Server PCB Manufacturing

Hobaneng u Khetha Highleap Electronics bakeng sa Seva PCB Manufacturing

Highleap Electronics e ikhethile ka ho etsa li-PCB bakeng sa li-server tsa GPU le lisebelisoa tsa AI. Re fektheri ea li-PCB e fanang ka litšebeletso tse felletseng e sebetsanang le ntho e 'ngoe le e 'ngoe ho tloha ho li-prototype ho isa tlhahisong e kholo, ka boiphihlelo bo khethehileng libotong tse rarahaneng tse hlokahalang bakeng sa lits'ebetso tsa setsi sa data. Setsi sa rona se hlahisa li-motherboard, likarete tsa riser, liboto tsa motlakase, le litsamaiso tse fapaneng tsa khokahano tseo li-server tsa GPU li li hlokang ho sebetsa. Hore na u hloka tlhahiso e tloaelehileng ea li-PCB tsa seva kapa tlhahiso e khethehileng ea GPU PCB , re na le bokhoni ba ho fana ka eona.

• Matla a Tlhahiso ea PCB e Phahameng ka ho Fetisisa: Re etsa liboto tse tšehetsang lebelo la PCIe Gen5 (32 GT/s) le Gen6 (64 GT/s) tse nang le taolo ea impedance ka har'a ± 7%. Mehala ea rona ea tlhahiso e sebetsana le ntho e 'ngoe le e' ngoe ho tloha ho liboto tsa 4-layer ho ea ho meralo e rarahaneng ea 28-layer, ho sebelisa mokhoa o ikemetseng oa ho hlahloba ka mekhahlelo e mengata ho tšoara liphoso qalong ea ts'ebetso. Boitseanape bona bo fetela ho PCB ea komporo ea moeli lits'ebetso moo latency le ts'epahalo li leng bohlokoa.
• Complex Multilayer Board Manufacturing: Liboto tsa li-server tsa GPU hangata li hloka likarolo tse 16-24 ho tsamaisa matšoao ohle a hlokahalang. Re sebelisa HDI PCB thekenoloji e nang le microvias ho theosa ho 75μm bophara le ho boloka ngoliso ea lera-to-layer ka hare ho ± 50μm. Ho nepahala hona hoa hlokahala ha ho tsamaisoa lipara tse makholo tse fapaneng tse lokelang ho boloka bolelele bo lekanang.
• Kopano ea SMT bakeng sa Likarolo tse Tenneng: Mechini ea rona ea ho khetha le ho beha sebaka e fihlella ho nepahala ha ±30μm bakeng sa likarolo tsa molumo o motle, e sebetsana le ntho e 'ngoe le e' ngoe ho tloha ho likarolo tsa chip tse 01005 ho ea ho liphutheloana tse kholo tsa BGA tse nang le libolo tse fetang 3,000. Re sebelisa li-oveni tsa nitrogen reflow ho netefatsa sebopeho se nepahetseng sa solder, haholo-holo ho bohlokoa bakeng sa li-BGA tse kholo tse sebelisoang server motherboard PCB kopano.
• Bokhoni ba ho Hlahisa Bolumo: Re hola ho tloha ho liboto tsa 5-10 ho isa ho palo ea tlhahiso e fetang li-unit tse 10,000 ka khoeli. Likamano tsa rona tsa phepelo ea phepelo li netefatsa ho ba teng ha likarolo le nakong ea likhaello, 'me re boloka litekanyetso tsa boleng tse bolokang sekhahla sa bofokoli se ka tlase ho 100 DPPM esita le ka bongata bo phahameng.

Motsoako ona oa bokhoni o re etsa molekane ea ka tšeptjoang bakeng sa lik'hamphani tse ntlafatsang lisebelisoa tsa li-server tsa moloko o latelang. Re fana ka tlhahiso le kopano ea seva sa GPU sa PCB, ho fana ka litharollo tse potlakileng, tse tšepahalang bakeng sa lits'ebetso tsa AI le setsi sa data.

Litlhoko tsa Bohlokoa tsa Moralo bakeng sa liboto tsa bo-'mè tsa GPU Server

Li-PCB tsa seva sa GPU ke tse ling tsa liboto tse rarahaneng ka ho fetisisa tse hlahisoang kajeno. Boto e tloaelehileng e tlameha ho tšehetsa li-GPU tse 4-8, e 'ngoe le e 'ngoe e hloka litsela tse 16 tsa khokahano ea PCIe hammoho le phepelo ea motlakase e khonang ho sebetsana le li-watts tse 300-700 ka karete. Litlhoko tsena li khanna liqeto tsa moralo tse amang karolo e 'ngoe le e 'ngoe ea ts'ebetso ea tlhahiso, haholo-holo bakeng sa meralo e khethehileng ea bo-motherboard ea AI.

• Litlhoko tsa Palo ea Lera le Litlhoko tsa Stackup: Boholo ba liboto tsa seva sa GPU li sebelisa likarolo tse 16-24, leha meralo e meng e sutumelletsa ho mekhahlelo e 28 kapa ho feta. The stackup e tlameha ho leka-lekanya likarolo tsa matšoao a lebelo le phahameng (hangata holim'a likarolo tse ka ntle), lifofane tsa matla (tse sebelisang koporo ea 2-4oz), le litšupiso tsa fatše. Khokahano e 'ngoe le e' ngoe ea GPU e le 'ngoe e ka hloka likarolo tsa 4-6 ho boloka botsitso bo nepahetseng ba matšoao. Ea rona Litaelo tsa HDI PCB bakeng sa liboto tsa li-server fana ka lintlha tse qaqileng tsa meralo ena e rarahaneng.
• Mathata a ho Tsamaisa Tsela a Phahameng: Ho tsamaisa ho ba thata haholo ka GPU e 'ngoe le e 'ngoe e eketsehileng. GPU e le 'ngoe e hloka lipara tse ka bang 100 tse fapaneng bakeng sa PCIe, taolo ea matla, le matšoao a thusang. Ho boloka bolelele bo lekanang ka har'a 5 mils ha o ntse o qoba crosstalk ho hloka moralo o hlokolosi 'me hangata ho pheta-pheta litsela tse ngata.
• Litlhoko tse nepahetseng bakeng sa BGA le Lihokelo: Likarolo tsa seva li sebelisa li-BGA tse kholo tse hlokang ho beoa hantle le ho bata ka ho phethahetseng. Li-slots tsa GPU li tlameha ho sebetsana le likarete tse boima ba 3kg ha li ntse li boloka likhokahano tsa motlakase ka likete-kete tsa lipotoloho tsa ho kenya. Lihokelo tsa motlakase li hloka ho nka 600W ha li ntse li le ka har'a meeli ea mocheso.

Lisebelisoa le Tsamaiso ea Lipontšo tsa Lebelo le Phahameng

Lebelo la PCIe Gen5 le Gen6 le hloka khetho e hlokolosi ea thepa ho pholletsa le tsela ea lets'oao. Lisebelisoa tse tloaelehileng tsa FR-4 li ke ke tsa boloka botšepehi ba lets'oao maqhubung ana, e leng se etsang hore khetho ea thepa ea PCB laminate e be e 'ngoe ea liqeto tsa bohlokoa ka ho fetisisa ts'ebetsong ea moralo.

• Ho khetha Lisebelisoa tsa PCB tse nepahetseng: Mealo e lebelo le phahameng e hloka thepa e nang le tahlehelo e tlase joalo ka Megtron 6, Megtron 7, kapa laminate e khethehileng e nang le tahlehelo e tlase. Lisebelisoa tsena li boloka li-constant tsa dielectric tse ka bang 3.3-3.5 le li-tangent tsa tahlehelo tse ka tlase ho 0.002 ho 10 GHz. Litšenyehelo tsa thepa li ka fihla ho $500-1000 ka phanele bakeng sa li-substrate tsa premium, kahoo hangata re sebelisa li-stackup tse kopantsoeng tse nang le thepa e nang le lebelo le phahameng feela moo ho hlokahalang.
• Ho Laola Botšepehi ba Letšoao ho 32+ GT/s: Ka lebelo la PCIe Gen5 le Gen6, ka lebelo le leng le le leng, millimeter e 'ngoe le e' ngoe ea trace, 'me sehokelo se seng le se seng se ama boleng ba matšoao. Re sebelisa ho phunya ka morao ho tlosa ka li-stubs, ho kenya ts'ebetsong ka tsela e nepahetseng ka sebaka ho fokotsa crosstalk, le ho netefatsa taolo ea impedance nakong eohle ea liphetoho. Ketsiso ea pele ho moralo e thusa ho tseba libaka tsa mathata pele o itlama ho Hardware.
• Liteko le Mekhoa ea ho netefatsa: Re netefatsa ts'ebetso ea lebelo le phahameng re sebelisa time-domain reflectometry (TDR) bakeng sa netefatso ea impedance le li-analyzer tsa marang-rang a vector bakeng sa litekanyo tsa S-parameter ho fihla ho 67 GHz. Teko ea setšoantšo sa mahlo e tiisa hore matšoao a boloka moeli o lekaneng ka mor'a ho ikarabella bakeng sa mefuta e sa tšoaneng ea tlhahiso.

Phano ea Matla le Tharollo ea Tsamaiso ea Mocheso

Li-GPU tsa sejoale-joale li sebelisa matla a mangata haholo - GPU e le 'ngoe ea H100 e ka hula 700W, 'me li-server tse nang le li-GPU tse 8 li hloka ho fana ka matla a fetang 5kW ho li-GPU feela. Matla ana a tlameha ho fanoa ka katleho ha ho ntse ho laoloa mocheso o hlahisoang ke phetoho ea matla le li-GPU ka botsona. Liphephetso tsena li matla haholo lits'ebetsong tsa tlhahiso ea li-PCB tsa k'homphieutha tse sebetsang hantle.

• Moqapi oa Koporo e Boima bakeng sa Hona Joale e Phahameng: Lifofane tsa matla li sebelisa koporo ea 4-10oz ho sebetsana le maqhubu a fetang 100A ka GPU. Re kenya ts'ebetsong litsela tse tsamaellanang 'me re sebelisa li-arrays tse pharaletseng (hangata 200+ vias) bakeng sa liphetoho tsa lera. Boithuto ba hajoale bo netefatsa hore ha ho libaka tse fetang 30A ka lisekoere-inch, ho thibela ho futhumala ho feteletseng.
• Tharollo e Kopantsoeng ea Thermal: Re etsa li-heatsink tse tloaelehileng, lipoleiti tse batang, le likamore tsa mouoane tse etselitsoeng ka ho khetheha bakeng sa tlhophiso ka 'ngoe ea seva. Thermal vias tlas'a likarolo tse phahameng-matla sebelisa 0.3mm bophara masoba tlatsitsoe ka thermally conductive epoxy. Bakeng sa maemo a feteletseng, re kenya lichelete tsa tšepe tsa koporo ka kotloloho ho PCB ho fihlela khanyetso ea mocheso ka tlase ho 1 ° C/W.
• Ho sebetsa le Cooling Systems: Li-server tsa sejoale-joale li sebelisa mekhoa e fapaneng ea ho pholisa - ho pholisa moea o tloaelehileng, ho pholisa metsi ka kotloloho, kapa ho qoelisoa ka botlalo. Meralo ea PCB e tlameha ho amohela lintlha tse ntseng li phahama bakeng sa lipoleiti tse batang, libaka tsa ho fafatsa liphaephe tsa mocheso, 'me maemong a mang, liphaephe tse khethehileng bakeng sa ho lumellana le pholileng ea ho qoelisoa.

Matla a sebetsang hantle le moralo oa mocheso ke oa bohlokoa bakeng sa ho netefatsa ts'ebetso e ts'epahalang ea lits'ebetso tse phahameng tsa ts'ebetso ea likhomphutha, haholo-holo libakeng tsa setsi sa data. Ka ho kopanya litharollo tse tsoetseng pele tsa ho fana ka matla le mekhoa ea tsamaiso ea mocheso, re thibela ho futhumala ho feteletseng, ho fokotsa tahlehelo ea matla, le ho netefatsa nako e telele ea likarolo tsa bohlokoa, kahoo re boloka ts'ebetso e nepahetseng ea tsamaiso esita le tlas'a mesebetsi e boima ka ho fetisisa.

Ho tloha ho Prototype ho isa Tlhahisong ea Boima ho GPU Server PCB Manufacturing

Ho fetela ho tloha ho li-prototype tsa pele ho ea ho tlhahiso e felletseng bakeng sa li-PCB tsa li-server tsa GPU ho hloka moralo o hlokolosi le ho nepahala. Meralo e mengata e sebetsang ka mokhoa oa prototype e ka tobana le mathata ha e nyolloa bakeng sa tlhahiso ea bongata. Ke ka lebaka leo ho ba le boiphihlelo ba tlhahiso ho bohlokoa ho netefatsa botsitso le boleng boemong bo bong le bo bong.

• Tlhahlobo ea Moralo oa Tlhahiso (DFM).: Pele tlhahiso e qala, re etsa litlhahlobo tsa DFM ho tseba mathata a ka bang teng, joalo ka mehele e sa lekaneng ea selemo kapa ho beha mohlala o sa lokelang. Ho lemoha pele ho nako ho thusa ho qoba lintlafatso tse bitsang chelete e ngata le ho netefatsa hore moralo o se o loketse ho hlahisa li-PCB tsa li-server tsa GPU.
• Mokhoa oa ho netefatsa Prototype: Li-prototypes tsa rona li etsa liteko tse felletseng, ho kenyeletsoa ka li-pass-section, tlhahlobo ea X-ray ea li-solder tsa BGA, le ho lekola mesaletsa ea bohlokoa. Ka tloaelo re haha ​​​​litšoantšo tse 'maloa ho netefatsa hore moralo le ts'ebetso ea tlhahiso li kopana le maemo a holimo a hlokahalang bakeng sa li-PCB tsa seva tsa GPU.
• Ho Ekelletsa ho Meqolo ea Tlhahiso: Mekhoa ea rona ea tlhahiso e netefatsa ho tsitsisa hore na ho etsa li-unit tse 10 kapa tse 10,000. Re sebelisa taolo ea ts'ebetso ea lipalo-palo, tlhahlobo ea othomathiki ea optical, le liteko tse thehiloeng ho sampole, re boloka boleng le ts'epahalo ho tsoa lits'ebetsong tsohle tsa tlhahiso ea li-PCB tsa li-GPU.

Mokhoa oa rona o netefatsa phetoho e se nang moeli ho tloha ho prototype ho ea ho tlhahiso ea bongata, ho fana ka li-PCB tsa boleng bo holimo, tse tšepahalang tsa GPU bakeng sa lisebelisoa tsa hau tse latelang tsa seva.