Ultra HDI PCB: Tlhahiso e tsoetseng pele bakeng sa lits'ebetso tse phahameng haholo

Selelekela

Indasteri ea lisebelisoa tsa elektroniki e ntse e sutumelletsa ho ea ho lisebelisoa tse nyenyane le tse sebetsang hantle. Li-smartphone, lintho tse aparoang, le lihlahisoa tsa IoT li hloka lintlha tse nyane tsa sebopeho ha li ntse li tšehetsa ts'ebetso e tsoetseng pele, li phephetsa meeli ea li-PCB tsa HDI tse tloaelehileng . Li-PCB tsa Ultra HDI (UHDI) li sebetsana le litlhoko tsena, li nolofalletsa likhokahano tsa ultra-high-density ha li ntse li boloka botšepehi ba lets'oao le ts'epahalo.

E tsamaisoa ke lisebelisoa tse kang 5G modules, high-I/O processors, le lisebelisoa tse nyenyane tsa bongaka, UHDI PCBs li na le microvias tse ka tlase ho 50 μm, ho tsamaisana ha litsela ho feta 300 I/O ka mm², le li-stackups tse rarahaneng tsa multilayer tse ke keng tsa fumanoa ka theknoloji e tloaelehileng ea HDI.

Ultra HDI PCB: Tlhaloso le Litšobotsi tsa Tekheniki

Baphapang ba Ka sehloohong ho HDI ea Setso

Li-PCB tsa Ultra HDI li sutumelletsa ka nģ'ane ho matla a tloaelehileng a HDI ka li-microvias tse nyenyane, tse phahameng ka ho teteana, le li-stacking tse tsoetseng pele. Li-diameter tsa Microvia li fokotsehile ho ba ka tlase ho 50 μm, e leng ho nolofalletsang ho kopana ho hoholo le ho lokolla sebaka sa ho tsamaisa. Li-vias tse foufetseng le tse patiloeng hangata li ikarabella ho feta 80% ea kakaretso ea li-vias, ho fokotsa liphetoho le ho ntlafatsa litsela tsa matšoao. Meralo ea UHDI e na le likarolo tse 12 ho isa ho tse 20 kapa ho feta, tse tšehetsang li-stackups tsa HDI tsa lera lefe kapa lefe, tse bophara ba mela le sebaka se theohelang ho 25 μm, tse amohelang liphutheloana tse matla tse kang li-flip-chip BGA le WLCSPs.

Likarolo tsa Botekgeniki tsa UHDI PCB

Li-PCB tsa Ultra HDI li thusa meralo e sebetsang hantle haholo le e sebetsang hantle haholo ka ho kopanya likarolo tse ntle haholo, tse tsoetseng pele ka theknoloji, le mats'oao a ntlafalitsoeng le ho tsamaisa motlakase. Lintlha tsa bohlokoa tsa tekheniki li kenyelletsa:

• Tekano e Phahameng ea Tsela e Phahameng - E ts'ehetsa lits'oants'o tsa litsela tse fetang 300 I/O ka mm², ka mokhoa oa ho beha li-pad-on-via o holisang likanale tse fumanehang tsa litsela.
• Microvia le Via Filling - Li-microvias tse entsoeng ka laser tse tlatsitsoeng ka koporo kapa li-pastes tse tsamaisang li netefatsa botsitso ba mochini le litlhophiso tse ka tšeptjoang tse pakiloeng.
• Pontšo le Botšepehi ba Matla - Litsela tse laoloang tsa ho itšireletsa, ho bapisa lipara tse fapaneng, lifofane tsa leano tsa fatše, le PDN e ntlafalitsoeng e fokotsa ho fetella le ho boloka phepelo ea motlakase e hloekile.
• Li-Stackups tsa Multilayer tse tsoetseng pele - Meaho ea HDI-on-HDI kapa e se nang motheo e etsa hore ho be le li-asymmetric layer, tse kopanyang likarolo tse ntle tsa kantle tse nang le li-cores tse matla tsa kahare.

Likarolo tsena ka kopanelo li lumella li-PCB tsa UHDI ho ts'ehetsa likarolo tse phahameng, tse lebelo haholo ha li ntse li boloka ts'ebetso le ts'epahalo.

Mathata a Moralo oa Ultra HDI PCB

Maikutlo a Moralo oa Microvia

Ho rala di-microvia bakeng sa di-PCB tsa Ultra HDI ho hloka tlhokomelo e hlokolosi ho jiometri, sebaka, le ka mekgwa ya ho tlatsa.

1. Aspect Ratio Limits - Li-microvia tse entsoeng ka laser hangata li boloka karolo ea ≤1: 1. Mohlala, 50 μm ka tsela e ka tšeptjoang e ka kenella ho feta 50 μm ea dielectric, ea hloka hore ho be le sequential buildup le ho hlophisoa kapa ho thekesela ka litlhophiso.
2. Via Spacing - Sebaka sa bohareng ho isa bohareng se lokela ho ikarabella bakeng sa mamello ea ho cheka le ho lelera ho ka bang teng, hangata ≥100 μm.
3. Ka Likhetho tsa ho Tlatsa - Likhetho li kenyelletsa li-vias tse tlatsitsoeng ka koporo, tse tlatsitsoeng ka peista kapa tse nang le litente:
   • E tlatsitsoeng ka koporo: Ts'ebetso e phahameng ea motlakase le ea mocheso empa litšenyehelo tse phahameng tsa ts'ebetso.
   • E tlatsitsoeng kapa e entsoe ka litente: Theko e tlase, ts'ebetso e bonolo, empa e ka fokotsa ts'ebetso kapa ts'ebetso ea mocheso.
4. Likhoebo tsa moralo - Nahana ka matla a hona joale a motlakase, ho qhalana ha mocheso, le ho tšepahala ha mochine ha u khetha ka mofuta le sebopeho.

Moralo o sebetsang oa microvia o leka-lekanya tlhahiso, ts'ebetso, le litšenyehelo, ho netefatsa likhokahano tse tšepahalang ka har'a meralo e phahameng ea UHDI PCB.

Tsela e Phahameng ea Boipheliso le Taolo ea Tšitiso

Ho boloka botšepehi ba mats'oao ho li-PCB tsa Ultra HDI ho ntse ho e-na le phephetso e ntseng e eketseha ka lebaka la li-geometries tsa trace tse ntle haholo le sesupo se phahameng sa litsela. Lintlha tsa bohlokoa li kenyelletsa:

1. Taolo ea Impedans - Bophahamo ba mela e moqotetsane (25-40 μm) e matlafatsa litlamorao tsa mamello ea etching, phapang ea boima ba koporo, le ho se lumellane ho sa feleng ha dielectric. Thepa ea dielectric e itšetlehileng ka makhetlo a mangata le ho ba mahoashe holimo ho tlameha ho nahanoa ka mokhoa oa impedance.
2. Crosstalk Mitigation - Sebelisa perpendicular routing holim'a mekhahlelo e haufi, mesaletsa ea balebeli, kapa meaho ea fatše ea coplanar bakeng sa matšoao a lebelo le phahameng.
3. Moqapi oa Boiketsetso - Litlhahlobo tse ikemetseng tsa moralo (DRC) li thusa ho netefatsa hore ho tsamaellana le litlhokahalo tse thata tsa motlakase le sebaka ka har'a meralo e teteaneng.

Thero e hlokolosi ea trace geometry, topology ea layer, le netefatso e ikemetseng e netefatsa ts'ebetso e tšepahalang ea lebelo le holimo ho meralo ea UHDI PCB.

Layer Stackup le HDI-on-HDI Architecture

Ho etsa li-stackups tsa layer bakeng sa li-PCB tsa Ultra HDI ho hloka ho leka-lekanya ka hloko ts'ebetso ea motlakase, ts'epahalo ea mochini, le ts'ebetso. Lintlha tsa bohlokoa li kenyelletsa:

1. Thin-Core HDI-on-HDI Sebopeho - Li-cores tse tloaelehileng li botenya ba 100-200 μm tse nang le likarolo tse ngata tsa ho haha ​​​​ka lehlakoreng le leng le le leng, tse nolofalletsang ho tsamaisa likarolo tse ntle haholo.
2. Copper Balance le Warpage Control - Li-stackups tsa asymmetric li hloka lipalo tse nepahetseng tsa kabo ea koporo ho thibela ntoa nakong ea ho phalla le ho kopanya.
3. Khetho ea Lihlahisoa - Li-dielectric tse tšesaane li tlameha ho fana ka ts'ebetso ea motlakase e tsitsitseng le botsitso ho pholletsa le mocheso o sebetsang.
4. Sequential Lamination & Tolerance Management - Potoloho e 'ngoe le e' ngoe ea lamination e hlahisa stack-up ea mamello; ka li-pads tsa ho lulisa li tlameha ho etsoa ka moeli o lekaneng ha ho ntse ho fokotsa sebaka se senyehileng sa tsela.
5. Mohlala o Nepahetseng oa Li-Microvias tse Stacked - Lisebelisoa tsa moralo li lokela ho etsa mohlala oa mamello e bokelletsoeng ho netefatsa likhokahano tse tšepahalang ka har'a mekhahlelo e mengata.

Moralo o sebetsang hantle oa UHDI o kopanya khetho e nepahetseng ea thepa, moralo oa lamination, le ho leka-lekanya koporo ho fihlela litseleng tse phahameng haholo le botsitso ba mochini.

Tsamaiso ea Thermal ho UHDI PCB

Boima ba likarolo tse phahameng ho li-PCB tsa Ultra HDI bo theha libaka tse tebileng tsa mocheso, e leng se etsang hore taolo ea mocheso e be mohopolo oa bohlokoa oa moralo. Maano a bohlokoa a kenyelletsa:

1. Optimized Thermal Via Placement – Thermal vias lokela ho leka-lekana mocheso dissipation le routing mathata a sebaka.
2. Khetho ea Lihlahisoa – Li-laminate tse sebetsang hantle tse kang laminate e khethehileng e nang le tahlehelo e tlase, Megtron, kapa FR-4 e tletseng ceramic li ntlafatsa ho tsamaisoa ha mocheso.
3. Ketsiso ea Mocheso - Lipapiso tse tlamang li tsebahatsa libaka tse hotspots le ho netefatsa ts'epahalo e kopaneng ea solder tlas'a libaesekele tse futhumetseng.

Tsamaiso e sebetsang hantle ea mocheso e netefatsa hore UHDI PCBs e boloka ts'ebetso le ts'epahalo ho sa tsotellehe litlhophiso tse phahameng haholo.

Ultra HDI PCB Manufacturing le Litlhoko tsa Ts'ebetso

Laser Drilling le Microvia Formation

Ho cheka ka laser ke motheo oa tlhahiso ea Ultra HDI PCB, e sebelisang li-lasers tsa CO2 kapa UV ho etsa li-microvia tsa sub-50 μm ka nepo e phahameng. Taolo e tebileng e netefatsa ho tlosoa ha dielectric ka ho feletseng ntle le ho senya sepheo sa sepheo. Li-vias tse tlatsitsoeng, ebang ke ka koporo e entsoeng ka electroplated kapa sekontiri sa conductive se koahetsoeng ka koporo, tlosa li-voids le ho nolofalletsa li-microvias tse pakiloeng, tse amang ka kotloloho ts'epahalo ea mochini le mocheso.

Mekhoa ea ho roala le ho kopanya tšepe

Ho foufala le ho patoa ka ho plating ho hloka taolo e nepahetseng ka lebaka la li-via tse tšesaane, tse nang le karolelano e phahameng. Lik'hemistri tse khethehileng le maqhubu a plating li netefatsa hore ho koaheloa mahlakore ka tsela e ts'oanang, ha botenya ba koporo ea phanele bo laoloa ka hloko. Mealo ea plating e latellanang e hloka liteko tse matla tsa boleng ho li boloka ka botšepehi le ho qoba liphoso tse ka behang ts'ebetso kotsing.

Ngoliso ea Lera le Ho tsamaisana

Ngoliso e nepahetseng ea lera-to-layer e bohlokoa bakeng sa li-PCB tsa UHDI, tseo ka tloaelo li bolokiloeng ka har'a ± 25 μm ho sebelisoa lisebelisoa tsa optical alignment system. Ho se tsamaisane hantle ho ka baka ho hloleha ho sebelisana-to-pad ho li-microvias tse pakiloeng kapa likarolo tsa molumo o hlakileng. Litšoantšo tse tsoetseng pele le litlhahlobo tsa X-ray tsa mahareng li tšoara liphoso esale pele, li fokotsa sekhechana le ho ntlafatsa chai meahong e rarahaneng ea li-multilayer.

Khetho ea Surface Finish bakeng sa UHDI PCB

Bokaholimo bo ama ts'epahalo ea kopano le ts'ebetso ea nako e telele. ENIG e fana ka sebaka se bataletseng, se lumellanang hantle le molumo, ha OSP e fana ka khetho e theko e tlaase bakeng sa lits'ebetso tse tloaelehileng. Litšenyehelo tsa ho qoelisoa tsa silevera le thini le ts'ebetso. Bakeng sa meralo ea boleng bo holimo ka tlase ho 0.4 mm, ENIG hangata e ratoa ka lebaka la polane e phahameng.

Taolo ea Boleng le Teko ea ho Tšepahala

Comprehensive QC e kenyelletsa AOI bakeng sa likarolo tsa bokaholimo, X-ray bakeng sa li-vias tse patiloeng, le liteko tsa lipatlisiso tse fofang bakeng sa ho tsoela pele ha motlakase. Tlhahlobo ea ts'epo e kenyelletsa ho palama libaesekele tse futhumetseng (lipotoloho tse 500-1000) mme, ha ho hlokahala, ho sisinyeha, ho ts'oha, le tlhahlobo ea khatello ea tikoloho ho netefatsa ts'ebetso e ts'oanang tlasa maemo a ts'ebetso.

Lisebelisoa tsa Ultra HDI PCB tsa Kopo

Mobile Devices

Li-smartphones tsa li-Flagship li sebelisa li-PCB tsa UHDI ho kopanya li-processor tse tsoetseng pele, memori, lik'hamera tse ngata, le li-module tsa RF ka mokhoa o mosesaane. Liboto hangata li na le lilae tse 8-12 tse nang le libopeho tsa HDI tsa lera, tse lumellang hore ho be le sekhahla se phahameng sa likarolo tse hlokahalang bakeng sa ts'ebetso ea sejoale-joale ea li-smartphone. Lintho tse roaloang, joalo ka li-smartwatches, li sutumelletsa ho etsa hore miniaturization e tsoele pele, e kenya lisebelisoa tse felletseng tsa komporo libotong tse nyane ho feta 500 mm².

5G Infrastructure

Li-PCB tsa UHDI li tšehetsa liteishene tsa motheo le li-module tsa lisele tse nyenyane, tse sebetsanang le matšoao a phahameng-frequency ka tahlehelo e fokolang. Meralo e kopaneng e kopanya liamplifiers tsa motlakase, lifilthara le manakana ha li ntse li boloka botsitso ba matšoao ho maqhubu a millimeter-wave. Taolo e nepahetseng ea impedance le ho fokotsoa ka li-stubs li bohlokoa bakeng sa ts'ebetso e tšepahalang ea 5G.

Lisebelisoa tsa bongaka

Lisebelisoa tse kentsoeng le lisebelisoa tsa tlhahlobo tse nkehang habonolo li ntse li amohela li-PCB tsa UHDI bakeng sa miniaturization, biocompatibility, le ts'epahalo ea nako e telele. Li-monitor tsa pelo, li-neurostimulator, le li-monitor tse tsoelang pele tsa tsoekere li rua molemo ho tsoa ho meralo e kopaneng ha li ntse li kopana le litekanyetso tse thata tsa boleng le ts'ebetso.

Aerospace le Defense

Avionics, litsamaiso tsa radar, le likhokahano tsa sathelaete li phahamisa UHDI PCBs bakeng sa ts'epo e phahameng le ts'ebetso. Miniaturization e fokotsa boima ba 'mele lits'ebetsong tsa sefofane, ha mekhoa ea ts'ireletso e fumana bokhoni ba ho kopanya mesebetsi e rarahaneng ka har'a liphutheloana tse ruggedized tse khonang ho mamella maemo a feteletseng.

Ultra HDI PCB: Melemo le Mefokolo ea Sebetsang

Melemo ea Bohlokoa ea Theknoloji ea UHDI

Li-PCB tsa Ultra HDI li fana ka melemo ea bohlokoa bakeng sa lisebelisoa tsa elektroniki tse sebetsang hantle haholo le tse sebetsang ka thata ka ho nolofalletsa litsela tse ngata haholo, ts'ebetso e ntlafalitsoeng ea motlakase, le ho etsa lihlahisoa tse nyane. Melemo ea bohlokoa e kenyelletsa:

• Boima ba Tsela bo sa Mathoeng - Li-microvia, li-trace line, le li-stackups tse ngata li tšehetsa li-I/O tse phahameng haholo, tse lumellang li-BGA tsa palo e phahameng (sub-0.4 mm pitch) ntle le fanout e rarahaneng kapa likarolo tse ling.
• Ts'ebetso e Phahameng ea Motlakase - Litsela tse khutšoane tsa likhokahano le tse fokolang ka li-stubs li fokotsa ho lieha ha lets'oao le ho bonahatsa, ho ntlafatsa ts'ebetso ea lebelo le holimo la dijithale le RF ha li ntse li theola tšebeliso ea matla.
• Miniaturization le ho fokotsa boima ba 'mele - Ts'ebetso e phahameng ea ho tsamaisa e fokotsa palo, botenya ba boto le boima ba 'mele, e nolofalletsa lihlahisoa tse nyane, tse bobebe bakeng sa lits'ebetso tsa mehala le tse nkehang habonolo.

Melemo ena e etsa hore theknoloji ea UHDI e be e loketseng bakeng sa lisebelisoa tsa moloko o latelang tse hlokang lintlha tsa sebopeho sa compact, ts'ebetso e potlakileng haholo, le ponts'o e tšepahalang ea matšoao.

Mefokolo e Sebetsang le Litlhaloso

Le ha li-PCB tsa Ultra HDI li fana ka ts'ebetso e ke keng ea bapisoa le miniaturization, mefokolo e 'maloa e sebetsang e tlameha ho nahanoa:

• Litšenyehelo tse Phahameng - Lisebelisoa tse ikhethileng, lits'ebetso tse latellanang tsa ho haha, le li-laminate tsa boleng bo holimo li eketsa litšenyehelo tsa tlhahiso, li fokotsa ho amoheloa ha UHDI lits'ebetsong moo ts'ebetso kapa miniaturization e lokafatsang litšenyehelo.

• Ho rarahana ha Tlhahiso - Methati e mengata ea lamination, likarolo tse ntle, le mamello e tiileng li baka liphephetso tsa chai, linako tse telele tsa ho etella pele, 'me li hloka taolo le tlhahlobo e tsoetseng pele ea ts'ebetso.

• Ho Rarahana ha Moralo – Melao ea moralo e potlakileng haholo, maano a tsoetseng pele a ho bokellana, le tlhoko e nepahetseng ea ho etsa mohlala oa EDA, e leng se lebisang lipotolohong tse telele tsa ho pheta-pheta ha moralo ha li bapisoa le HDI e tloaelehileng.

Ho utloisisa litšitiso tsena ho thusa baenjiniere ho lekanya melemo ea ts'ebetso le litšenyehelo, bokhoni ba tlhahiso, le bokhoni ba moralo ha ba sebelisa theknoloji ea UHDI.

Qetello: Bokamoso ba Ultra HDI PCB Technology

Li-PCB tsa Ultra HDI li bohlokoa bakeng sa lisebelisoa tsa elektroniki tsa moloko o latelang, tse nolofalletsang lipalo tse phahameng tsa I/O le likhokahano tse hlakileng bakeng sa likarolo tse tsoetseng pele. Lintlafatso tse tsoelang pele tsa thepa, lits'ebetso le mekhoa ea meralo li ntse li tsoela pele ho atolosa se ka finyelloang ho etsoa ha boto ea potoloho.

Ts'ebetsong e atlehileng ea UHDI e hloka mokhoa o akaretsang o leka-lekaneng boiphihlelo ba moralo, khetho ea thepa le bokhoni ba ho etsa tlhahiso. Mehaho e ntlafalitsoeng e netefatsa ts'ebetso e phahameng ha e ntse e boloka chai e amohelehang, e tšehetsoeng ke li-laminate tse tsoetseng pele le mekhoa e nepahetseng ea ho etsa lintho.

Bakeng sa mekhatlo e amohelang theknoloji ea UHDI, ho khetha molekane ea nepahetseng oa tlhahiso ho bohlokoa. Ho Highleap Electronics, mela ea rona e inehetseng ea UHDI, ho cheka ka laser e tsoetseng pele, le sehlopha sa boenjiniere se nang le boiphihlelo se tataisa meralo ho tloha mohopolong ho ea tlhahisong, ho netefatsa liboto tse tšepahalang le tse sebetsang hantle. Ikopanye le sehlopha sa rona ho hlahloba hore na li-PCB tsa UHDI li ka tšehetsa sehlahisoa sa hau se latelang joang.