Sekhahla sa PCB sa lebelo le phahameng | Mathata a Tlhahiso le Litharollo tsa Moralo

Pokello e phahameng ea PCB e fetohile lejoe la sekhutlo la lisebelisoa tsa elektronike tsa morao-rao, moo phetiso ea data ka lebelo la li-gigabit tse ngata e siea sebaka sa phoso. Ho tloha meahong ea 5G ho ea ho AI ea likhomphutha le likoloi tse ikemetseng, lits'ebetso tsena li hloka meralo ea PCB e leka-lekaneng botšepehi ba matšoao, taolo ea impedance, phano ea matla, le tlhahiso.

Moralo oa li-stackup ha e sa le qeto ea moralo feela - ke phephetso ea tlhahiso e khethollang ka kotloloho ts'ebetso, ts'epahalo le ts'ebetso ea litšenyehelo. Sengoliloeng sena se hlahloba liqholotso tsa mantlha tsa tlhahiso e potlakileng ea PCB mme se fana ka maano a sebetsang a moralo ho fihlela liphetho tse tsitsitseng, tse tšepahalang.

Hobaneng ha PCB ea lebelo le phahameng e le taba ho PCB Manufacturing

Phephetso ea mantlha ea ho etsa li-stackup tsa PCB tse lebelo le holimo ke ho boloka litšoaneleho tse tsitsitseng tsa motlakase litseleng tsohle tsa mats'oao ha o ntse o laola litšebelisano tse rarahaneng lipakeng tsa tlhophiso ea lera, thepa ea thepa le lits'ebetso tsa tlhahiso.

Letšoao la Botšepehi le Taolo ea Impedans

Ho bapisa ho ts'oana ho nepahetseng hoa bohlokoa ha linako tsa ho phahama ha lets'oao li theoha ka tlase ho 1 nanosecond, joalo ka ha e fumanoa ho DDR4/DDR5 memorial interface le liprothokholo tsa serial tse lebelo le holimo. Mamello ea tlhahiso ea ± 5% ea taolo ea impedance e hloka tšebelisano e hlokolosi lipakeng tsa trace geometry, botenya ba dielectric, le lintlha tsa boima ba koporo.

Moqapi oa Marang-rang oa Phatlalatso ea Matla

Litlhophiso tse sebetsang hantle tsa lifofane tsa motlakase ka har'a li-stackups tse lebelo le phahameng li tlameha ho fana ka phepelo ea motlakase e sa sebetseng hantle ha ho ntse ho bolokoa matla a sefofane a lekaneng. Maemo a impedans a reriloeng a atisa ho tloha ho 0.5Ω ho isa ho 2Ω ho pholletsa le spectrum ea maqhubu, e hlokang ho behoa ha maqheka a ho fokotsa matla le ho ntlafatsoa ka liphallelo.

Phokotso ea EMI ka Tokiso ea Lera

Moralo o nepahetseng oa li-stackup o fokotsa haholo tlhahiso ea motlakase ka ho fana ka lifofane tsa litšupiso tse tsoelang pele le ho fokotsa libaka tsa loop. Litokiso tse entsoeng hantle tsa lera li ka fokotsa EMI ka 15-20 dB ha li bapisoa le li-stackups tse sa ntlafatsoang hantle, hangata li felisa tlhoko ea litharollo tse ling tsa tšireletso.

Tšebelisano ea Tsamaiso ea Mocheso

Meralo ea lebelo le holimo e hlahisa mocheso o mongata ka lebaka la ho eketseha ha matla a motlakase le ho fetoha ha maqhubu ka potlako. Kabo ea koporo ea maano le mocheso ka ho beoa ka har'a stackup li thusa ho theola mocheso ha o ntse o boloka litlhoko tsa ts'ebetso ea motlakase.

Mathata a ho Hlahisa ho Phethahatso ea Pokello ea PCB e Phahameng ka ho Fetisisa

Phetoho ho tloha morerong oa moralo ho ea ho 'nete e hlahisitsoeng ka har'a PCB e potlakileng e hlahisa liphephetso tse ngata tsa tekheniki tse hlokang bokhoni bo khethehileng ba tlhahiso le mehato e tiileng ea taolo ea ts'ebetso.

Boteng ba Lintho le Phapang ea Ts'ebetso

Lisebelisoa tsa PCB tse lebelo le phahameng tse kang letoto la laminate le nang le tahlehelo e tlase, Isola I-Speed, le Panasonic Megtron 6 li fana ka thepa e phahameng ea motlakase empa li hlahisa liphephetso tsa tlhahiso. Likarolo tse fapaneng tsa thepa li ka bontša liphetoho tse sa fetoheng tsa dielectric tsa ±0.05, tse amang ka kotloloho lipalo tsa impedance le ho hloka liphetoho tse tsoelang pele tsa ts'ebetso.

Botenya ba Lera le Taolo ea Mamello

Ho finyella litekanyetso tsa ho thibela sepheo ho hloka taolo e nepahetseng ea botenya ba dielectric, hangata ka har'a ± 10% ea boleng ba lebitso. Phallo ea prepreg nakong ea lamination e ka baka mefuta e fapaneng ea botenya ea 15-25%, e hlokang mohlala oa botenya oa khatiso o thehiloeng ho boleng ba koporo le lipalo tsa dikahare tsa resin.

HDI Technology Integration

Likarolo tsa High-Density Interconnect li hlahisa ho rarahana ho eketsehileng ho moralo oa stackup, ka li-vias tse foufetseng le tse patiloeng tse hlokang taolo ea karolo ea 0.75: 1 bakeng sa plating e tšepahalang. Ka optimization ea li-stub le mekhoa ea ho phunya ka morao e ba ea bohlokoa bakeng sa ho boloka botšepehi ba matšoao meahong e mengata.

Warpage le Dimensional Stability

Li-stackups tse rarahaneng tse nang le lisebelisoa tse tsoakiloeng le kabo ea koporo ea asymmetric li ka ba le warpage e fetang 0.75mm liphanele tse kholo. Mekhoa e tsoetseng pele ea khatiso le mekhoa ea ho imolla khatello ea kelello ka mor'a ho phekoloa e thusa ho boloka botsitso ba sebopeho ha o ntse o boloka litšobotsi tsa motlakase.

Litharollo tse tsoetseng pele tsa Tlhahiso bakeng sa Stackup ea PCB e Phahameng ka ho Fetisisa

Baetsi ba sejoale-joale ba PCB ba sebelisa taolo e tsoetseng pele ea ts'ebetso le mehato ea netefatso ea boleng ho fana ka ts'ebetso e tsitsitseng ea lebelo le phahameng la pcb ho pholletsa le mefuta ea tlhahiso.

Boenjineri ba Thepa le Tšoaneleho

Tlhahiso e atlehileng ea PCB e potlakileng e hloka tlhaloso e batsi ea thepa ho kenyeletsoa 'mapa o sa fetoheng oa dielectric, netefatso ea tahlehelo ea tangent, le tlhahlobo ea coefficient ea mocheso. Mekhoa ea ho tšoaneleha ea thepa e netefatsa botsitso ba lot-to-lot 'me e nolofalletsa ho etsa mohlala oa ho bolela esale pele bakeng sa taolo ea impedance.

Taolo ea Ts'ebetso le Tlhokomelo

Tlhokomelo ea nako ea 'nete ea mocheso oa khatiso, khatello le maemo a vacuum e netefatsa sebopeho se sa fetoheng sa botenya ba dielectric. Taolo ea ts'ebetso ea lipalo-palo e latela likarolo tsa bohlokoa tse nang le boleng ba Cpk bo fetang 1.33 bakeng sa likarolo tsa bohlokoa tsa impedance.

Tekanyo e tsoetseng pele le netefatso

Teko ea Time Domain Reflectometry e netefatsa taolo ea impedance ho li-PCB tse lebelo le phahameng ka ho nepahala ha tekanyo ea ±1Ω. Li-coupon tsa liteko tse iketsang li fana ka netefatso ea lipalo-palo ho pholletsa le liphanele tsa tlhahiso, ho netefatsa phano e tsitsitseng ea ts'ebetso.

Ntlafatso ea Moralo o Kopanetsoeng

Tšebelisano ea pele lipakeng tsa lihlopha tsa meralo le lienjineri tsa tlhahiso li etsa hore ho be bonolo ho ntlafatsa ts'ebetso ea motlakase le tlhahiso ea tlhahiso. Moralo oa Melao-motheo ea Tlhahiso o fokotsa ho rarahana ha tlhahiso ha o ntse o boloka litlhoko tsa botšepehi ba matšoao.

Litaelo tse Sebetsang bakeng sa Moralo oa Stackup oa lebelo le phahameng

Tšebelisano e sebetsang lipakeng tsa baqapi le bahlahisi e hloka lintlha tse hlakileng tsa litlhoko le kutloisiso ea litšitiso tsa tlhahiso tse amang bokhoni ba ho bokella PCB ka lebelo le holimo.

Leano la ho Khetha Lintho

Netefatsa ho fumaneha ha thepa le linako tsa ho etella pele qalong ea mohato oa moralo, kaha thepa e ikhethang ea lebelo le phahameng e ka hloka linako tse telele tsa ho reka. Thepa e tloaelehileng joalo ka FR-4 e ka fihlella ts'ebetso e lekaneng bakeng sa lits'ebetso tse ka tlase ho 5 GHz ka mekhoa e nepahetseng ea moralo oa PCB ea lebelo le phahameng.

Tlhaloso ea Impedans le netefatso

Hlalosa ka ho hlaka litekanyetso tsa ho itšireletsa tse nang le mamello e nepahetseng, hangata ± 10% bakeng sa lits'ebetso tse tloaelehileng le ± 5% bakeng sa li-interfaces tsa lebelo le phahameng. Fana ka baqapi ba litšupiso bakeng sa lits'oants'o tsa bohlokoa tse hlokang taolo ea ho thibela le ho hlakisa litlhoko tsa setlankana sa tlhahlobo bakeng sa netefatso ea tlhahiso.

Litokomane tsa Stackup le Tumello

Kopa litokomane tse felletseng tsa li-stackup tse kenyelletsang lintlha, botenya ba lera, le boima ba koporo pele u phethela moralo. Phapang ea tlhahiso e kanna ea hloka litokiso tsa bophara ba morao-rao ho fihlela lipehelo tsa impedance, e leng se hlokang linako tsa tumello ea moralo.

Netefatso ea Molao oa Moqapi

Theha bonyane ba bophara ba ho latella le litlhoko tsa sebaka ho ipapisitsoe le bokhoni ba tlhahiso, hangata limilimithara tse 3-4 bakeng sa lits'ebetso tse tloaelehileng le limilimithara tse 2-3 bakeng sa tlhahiso e tsoetseng pele ea HDI. Ka melao ea moralo e tlameha ho nahana ka likarolo tsa likarolo le bokhoni ba ho cheka bakeng sa tlhahiso e tšepahalang.

Mohlala: Meaho e ntlafalitsoeng ea 8-Layer High-Speed ​​Stackup

Tlhahlobo e felletseng ea ts'ebetso e sebetsang ea lebelo le holimo ea PCB e bonts'a ho kopanngoa ha litlhoko tsa motlakase le litšitiso tsa tlhahiso lits'ebetsong tsa sejoale-joale tsa lebelo le holimo.

Tlhophiso ea Lera bakeng sa Likopo tsa 10 Gbps

Sekhahla sena sa 8-layer se ts'ehetsa likhokahano tsa dijithale tsa lebelo le holimo tse hlokang hore 50Ω e qetelle e le 'ngoe le 100Ω ho bonts'a phapang. Tlhophiso e fana ka ponts'o e ntle ea matšoao ha e ntse e boloka bokhoni ba tlhahiso.

Mabaka a ho Khetha Lintho

The stackup e sebelisa Isola I-Speed ​​material for layers hloka controlled impedance, ho fana ka dielectric constant tsa 3.45 le low loss tangent of 0.0031 at 10 GHz. Standard FR-4 prepreg e sebeletsa mekhahlelo e seng ea bohlokoa, e ntlafatsa litšenyehelo ha e ntse e boloka ts'ebetso.

Phethahatso ea Taolo ea Impedans

Litšitiso tsa sepheo li fihlella 50Ω ± 5% bakeng sa mesaletsa e phethiloeng e le 'ngoe le 100Ω ± 5% bakeng sa lipara tse fapaneng. Netefatso ea tlhahiso ka tlhahlobo ea TDR e netefatsa ts'ebetso e tsitsitseng ea motlakase ho pholletsa le lihlahisoa.

Hobaneng U sebelisane le Highleap bakeng sa Tlhahiso ea PCB e Phahameng ka ho Fetisisa

Highleap Electronics e kopanya phihlelo e batsi ea ho etsa PCB e tsoetseng pele e nang le bokhoni bo khethehileng bakeng sa lisebelisoa tsa elektroniki tsa lebelo le phahameng. Mokhoa oa rona o felletseng oa tlhahiso o sebetsana le liphephetso tse rarahaneng tsa ts'ebetso ea sejoale-joale ea li-stackup ha re ntse re fana ka litharollo tse bolokang chelete e ngata bakeng sa lits'ebetso tse batloang.

Matla a Tsoetseng Pele a Tlhahiso

Setsi sa rona sa morao-rao se ts'ehetsa tlhahiso ea HDI e nang le bokhoni ba ho cheka ka laser ho theosa ho fihla ho 2-mil ka boholo le likarolo tse ntlafalitsoeng bakeng sa ts'ebetso ea lebelo le holimo. Sistimi ea taolo ea impedance e boloka mamello ea ± 5% ka ho lekola nako ea nnete le taolo ea ts'ebetso ea lipalo.

Tsebo ea Boitsebiso le Tsamaiso ea Ketane ea Thepa

Re boloka likamano tsa maano le bafani ba thepa ba ka sehloohong ho kenyeletsoa le laminate e ikhethang e nang le tahlehelo e tlase, Isola, le Panasonic, ho netefatsa hore ho na le li-laminate tse sebetsang hantle le li-prepreg tse fumanehang khafetsa. Mekhoa ea rona ea ho tšoaneleha bakeng sa thepa e tiisa botsitso ba lotho ho lotho le netefatso ea ts'ebetso ea motlakase.

Netefatso ea Boleng le Teko

Liteko tse felletseng tsa liteko li kenyelletsa netefatso ea impedance, tlhahlobo ea microsection, le tlhahlobo ea khatello ea tikoloho. Litsamaiso tsa rona tsa tsamaiso ea boleng li lumellana le litekanyetso tsa ISO9001, ISO13485, IATF16949, le ISO14001, tse fanang ka kholiseho bakeng sa likopo tsa bohlokoa.

Boiphihlelo ba Kopo ea Indasteri

Bohlale ba rona ba ho etsa thepa bo akaretsa lisebelisoa tsa bongaka, lisebelisoa tsa elektroniki tsa likoloi, li-platform tsa likhomphutha tsa AI, le lisebelisoa tsa mehala ea likhokahano. Boiphihlelo bona bo fapaneng bo fana ka tharollo e ntlafalitsoeng bakeng sa litlhoko tse ikhethang tsa ts'ebeliso le lipehelo tsa ts'ebetso.

Ho fana ka Litharollo tse Tšepahalang tse Phahameng tsa PCB

Highleap Electronics e fana ka lits'ebeletso tse felletseng tsa tlhahiso le kopano ea PCB, e nolofalletsang boikarabello ba mohloli o le mong bakeng sa litsamaiso tse rarahaneng tsa elektroniki tsa lebelo le holimo. Mokhoa oa rona o kopaneng o kopanya bokhoni bo tsoetseng pele ba ho qapa le ho fumana likarolo le lits'ebeletso tsa kopano.

Accelerated Development Cycles

Bokgoni ba rona ba ho etsa diprototype ka potlako bo tshehetsa phetoho ya matsatsi a 3-5 bakeng sa disampole tsa PCB tse potlakileng haholo , bo nolofalletsang ho pheta-pheta moralo ka potlako le ho potlakisa nako ya ho ya mmarakeng. Ho katolosa tlhahiso ho netefatsa phetoho e boreleli ho tloha tlhahisong ya diprototype ho ya ho ya bophahamo.

Tšehetso ea Theknoloji le Tšebelisano

Sehlopha sa rona sa boenjiniere se fana ka tšehetso ea Design for Production, tataiso ea ho ntlafatsa stackup, le tlhahlobo ea bokhoni ba tlhahiso. Tšebelisano-'moho ea pele e tiisa tekano e nepahetseng pakeng tsa ts'ebetso ea motlakase, tlhahiso ea tlhahiso, le lipakane tsa litšenyehelo.

Haeba u batla molekane ea tšepahalang oa tlhahiso bakeng sa ts'ebetso e potlakileng ea PCB, Highleap Electronics e fana ka boiphihlelo ba tekheniki le bokhoni ba tlhahiso bo hlokahalang ho fana ka liphetho tse tsitsitseng, tsa boleng bo holimo bakeng sa lits'ebetso tsa elektroniki tse batloang.