Koloi ea Semiconductor PCB: Moralo le Tlhahiso ea Motlakase oa Matla

Selelekela

Theknoloji ea semiconductor e sebetsa e le mokokotlo oa lisebelisoa tsa motlakase tsa motlakase tsa sejoale-joale, tse nolofalletsang lits'ebetso tsa bohlokoa joalo ka li-inverter tsa EV, charger tsa onboard, li-converter tsa DC-DC, le li-module tsa motlakase tsa ADAS. Lisebelisoa tsena li hloka liboto tsa potoloho tse khonang ho sebetsana le maemo a phahameng a hona joale, mocheso o phahameng oa ts'ebetso, le ho thothomela ho tsoelang pele ha mochini o ntse o boloka ts'ebetso e nepahetseng ea motlakase.

Phephetso e fetela ka nģ'ane ho ts'ebetso ea motheo ho kenyelletsa tsamaiso ea mocheso, ho itšehla thajana ha motlakase, le ho tšepahala ha nako e telele tlas'a maemo a khatello ea likoloi. Li-PCB tse khethehileng tsa likoloi tsa semiconductor li bapala karolo ea bohlokoa ho netefatsa hore ts'ebetso e ts'epahalang bakeng sa litsamaiso tsa likoloi tse matla haholo.

Likoloi tsa Semiconductor PCB ho Likopo tsa Power Electronics

Kabo ea Matla le Botšepehi ba Letšoao

Li-PCB tsa semiconductor tsa likoloi ka li-module tsa matla li sebetsa mesebetsi e meraro e ka sehloohong: ho aba maqhubu a phahameng pakeng tsa lisebelisoa tsa matla, ho boloka ho itšehla thajana pakeng tsa taolo le libaka tsa matla, le ho fana ka litsela tsa mocheso ho felisa mocheso. Ho meralo ea inverter e thehiloeng ho SiC, PCB e sebetsa e le motheo oa sebopeho o hokahanyang lisebelisoa tsa ho chencha ho libanka tsa capacitor ha o ntse o tsamaisa mats'oao a liheke tse nang le inductance e nyane.

Litlhoko tsa Moqapi Papiso

Li-PCB tsa motlakase li hloka botenya ba koporo bo pakeng tsa li-ounces tse 2 ho isa ho tse 6 ha li bapisoa le tekanyetso ea li-ounces tse 1 mabotong a taolo. Lithempereichara tse sebetsang li feta 125°C khafetsa haufi le li-semiconductor tsa motlakase, li hloka thepa e nang le mocheso oa phetoho ea khalase o fetang 170°C. Li-trace tsa PCB tsa EV inverter li tlameha ho sebetsana le botenya ba hona joale ho fihlela ho 30A ka bophara ba millimeter trace, e leng se hlokang tlhahlobo e hlokolosi ea ho senyeha ha mocheso.

Litlhoko tsa Lintho le Sebopeho bakeng sa Semiconductor ea Likoloi PCB

Khetho ea Lintho tsa Motheo

Dipotoloho tsa lera la taolo hangata di sebedisa di-laminate tsa FR-4 bakeng sa ho boloka ditjeo, ha mekhahlelo ya motlakase e hloka di-substrate tsa motheo wa tshepe kapa di-substrate tsa tshepe tse thibetsweng (IMS) bakeng sa ho ntsha mocheso o eketsehileng. Meralo ya PCB ya ho tsamaisa mocheso o phahameng e kenyelletsa meaho e kopantsweng moo dikarolo tsa motlakase di sebedisang dikarolo tsa tshepe ha dikarolo tsa matshwao di sebedisa thepa ya dielectric e tlwaelehileng.

Litšobotsi tsa bohlokoa tsa thepa li kenyelletsa:

• Aluminium IMS substrates - Thermal conductivity ea 1-2 W / mK e nang le lera le ikhethileng la dielectric.
• Lisebelisoa tse nang le koporo - Thermal conductivity e fetang 180 W/mK bakeng sa litlhoko tse feteletseng tsa ho senya mocheso.
• Standard FR-4 laminates - Thermal conductivity ea 0.3 W / mK, e loketseng likarolo tsa ts'ebetso ea matšoao.

Tsamaiso ea Koporo e Tenyang le Thermal

Ts'ebetso ea koporo e teteaneng ea PCB e sebelisa litekanyo tsa koporo tse 3 ho isa ho tse 6 bakeng sa mesaletsa ea mantlha ea matla, 'me plating e eketsa botenya bo eketsehileng libakeng tsa bohlokoa. Thermal vias tse behiloeng ka tlas'a lisebelisoa tsa matla li theha litsela tsa mocheso tse otlolohileng ho li-cores tsa tšepe kapa li-heatsink tsa kantle. Lichelete tsa tšepe tsa koporo-li kenya koporo e tiileng e kentsoeng ka har'a PCB-tsebisa ho tlosoa ha mocheso ka ho toba tlas'a li-semiconductors tse matla.

Lisebelisoa tsa Dielectric

Lipontšo tsa ho khanna liheke tse phahameng-frequency li hloka lisebelisoa tsa dielectric tse nang le "dielectric factor" e tlase le maemo a tsitsitseng a dielectric ho pholletsa le mocheso. Lisebelisoa tse tlatsitsoeng ke polyimide le ceramic li boloka thepa ea motlakase ka mocheso o phahameng ha li ntse li fana ka botsitso bo hlokahalang bakeng sa tikoloho ea likoloi. Taolo ea impedance ea lera e fetoha ea bohlokoa lits'ebetsong tsa SiC le GaN moo lebelo la ho switjha le hlahisang litekanyetso tse fetang 50V ka nanosecond.

Moqapi oa PCB oa Semiconductor oa Likoloi tsa SiC le GaN Modules

Litlhoko tsa ho Fetola Maqhubu a Phahameng

Meralo ea SiC power module PCB e tlameha ho fokotsa inductance ea parasitic ho loop ea commutation ho hatella overshoot ea voltage nakong ea phetoho. Tšitiso ea ho ts'oara liheke tsa heke e hloka ho ts'oana le li-ohms tse 50 ka mamello e tiileng, ha libaka tsa loop lipakeng tsa lisebelisoa tsa motlakase le li-capacitor tsa decoupling li tlameha ho lula ka tlase ho lisenthimithara tse 5. Litlhophiso tsa GaN PCB li hloka taolo e thata le ho feta ka lebaka la lebelo la ho fetoha le atamelang 100 MHz.

Tšebetso ea Mocheso o Phahameng

Lithempereichara tse sebetsang ka har'a lisebelisoa tsa SiC hangata li fihla ho 175 ° C, li pepesa lisebelisoa tsa PCB khatellong ea mocheso e tsitsitseng. Li-laminates tse thehiloeng ho polyimide kapa likaroloana tsa IMS li boloka botsitso ba sebopeho le thepa ea motlakase maemong ana a phahameng a mocheso. Thermal katoloso ea coefficient e tsamaisanang pakeng tsa koporo, dielectric, le liphutheloana tsa module ea matla li thibela ho bokellana ha khatello ea kelello nakong ea mocheso oa libaesekele.

Ho Ikhetha ka Motlakase o Phahameng

Meralo ea EV inverter PCB e sebetsanang le lits'ebetso tsa betri tsa 800V li hloka ho eketseha ha creepage le sebaka sa ho hlaka pakeng tsa li-conductor. Botenya ba dielectric lipakeng tsa mekhahlelo bo tlameha ho mamella tlhahlobo e sa fellang ea ho ntša metsi ho latela maemo a koloi, hangata a hlokang sebaka se fokolang sa 0.4mm bakeng sa ho itšehla thajana ho 1000V. Kopo ea ho roala ka mokhoa o hlophisitsoeng e eketsa tšireletso e eketsehileng khahlanong le mongobo le tšilafalo.

Modular Packaging Integration

Li-module tsa sejoale-joale tsa matla li kopanya li-substrates tsa koporo tse otlolohileng ka kotloloho le likopano tsa PCB tsa semiconductor tsa likoloi, tse hlokang taolo e nepahetseng ea boholo le meralo e lumellanang ea solder pad. Li-interfaces tsa khatello ea maikutlo le likhokahano tse kentsoeng nakong ea selemo li nka sebaka sa manonyeletso a setso ka meralo e meng e tšepahalang haholo. Sehokelo sa sehokelo sa pholileng se otlolohileng se lumella heatsink hore e behoe ka mokhoa o fokolang oa ho hanyetsa mocheso oa mocheso.

Ho Tšepahala le Maemo a Tšoaneleho

Maemo a Teko le Litlhoko

Lithuto tsa PCB tsa boemo ba likoloi li latela maemo a likarolo tsa AEC-Q200 le litlhoko tsa boemo ba sistimi ea ISO 16750. Liboto li kena libaesekeleng tse futhumetseng ho tloha ho -40 ° C ho ea ho 150 ° C bakeng sa bonyane ba lipotoloho tse 1000, ho lateloa ke liteko tsa bophelo bo sebetsang ba mocheso o phahameng maemong a holimo. Teko ea vibration ho latela litekanyetso tsa IPC-6012DA tsa Sehlopha sa 3 li netefatsa bots'epehi ba mochini tlas'a khatello e tsoelang pele ea likoloi.

Qetello ea Bokaholimo le Tšireletso

Khetho ea kalafo ea bokaholimo e ama tlhahiso ea kopano ea pele le ts'epo ea nako e telele bakeng sa li-PCB tsa semiconductor tsa likoloi:

• ENIG plating - E fana ka libaka tse rekisoang tse nang le nako e telele ea shelefo le ho lumellana ha makhetlo a mangata.
• Ho roala ha OSP - E fana ka melemo ea litšenyehelo bakeng sa tlhahiso e phahameng haholo e nang le solderability e ntle haholo.
• Khauta e teteaneng - E sebeletsa lits'ebetso tse ts'epahalang haholo tse hlokang likhokahano tsa terata kapa likhokahano tse lekanang hantle.

Manufacturing Consistency

Ho lumellana ha bophara ba ho latela ± 10% ho netefatsa kabo ea hajoale le thibelo ea hotspot ho pholletsa le lotho ea tlhahiso. Via tšepahala itšetlehile ka tšobotsi karo-karolelano taolo, le vias mogote hloka tlatsitsoe kapa capped kaho ho thibela solder wicking nakong kopano. Tlhahlobo e ikemetseng ea optical le liteko tsa motlakase li netefatsa hore boto e 'ngoe le e' ngoe e kopana le lintlha tsa boholo le tsa motlakase.

Automotive Semiconductor PCB Manufacturing at Highleap Electronics

Bokhoni ba Tlhahiso e tsoetseng pele

Highleap Electronics e ikhethile ka ho etsa potoloho e teteaneng ea koporo ka boima ba koporo ho fihlela ho li-ounces tse 6, e tšehetsang lits'ebetso tsa motlakase oa likoloi tse nang le motlakase o phahameng. Bokhoni ba rona ba tlhahiso ea substrate ea tšepe bo kenyelletsa kaho ea aluminium le IMS ea motheo oa koporo ka botenya bo laoloang ba dielectric bakeng sa ts'ebetso e ntlafalitsoeng ea mocheso. Mekhoa ea ho betla ka motlakase ka nepo e boloka kabo e ts'oanang ea koporo ho pholletsa le meralo e rarahaneng ea mekhahlelo e mengata.

Tšehetso ea Moralo le Ts'ebetso

Sehlopha sa rona sa boenjiniere se fana ka tlhahlobo ea moralo bakeng sa tlhahiso e shebaneng haholo le litlhoko tsa PCB tsa semiconductor tsa likoloi , ho kenyeletsoa le ketsiso ea mocheso le netefatso ea bongata ba hona joale. Re tšehetsa nts'etsopele ea mehlala ka tlhahiso ea sehlopha se senyenyane ka lits'ebetso tse tsitsitseng, tse nolofalletsang phetoho e boreleli ho ea tlhahisong ea bophahamo. Litšebeletso tse felletseng tsa PCBA li kopanya kopano ea likarolo le liprothokholi tsa liteko tse etselitsoeng netefatso ea lisebelisoa tsa elektroniki tsa motlakase.

Mekhoa ea Boleng

Lits'ebetso tse netefalitsoeng tsa ISO 9001 le IATF 16949 li netefatsa boleng ba boemo ba likoloi nakong eohle ea tlhahiso. Bokhoni ba tlhahlobo ea tikoloho bo kenyelletsa likamore tsa libaesekele tse futhumatsang le lisebelisoa tsa ho sisinyeha bakeng sa netefatso ea ts'epo ea ntlo. Sistimi ea traceability e lekola lotho ea lisebelisoa le liparamente tsa ts'ebetso bakeng sa phanele ka 'ngoe ea tlhahiso, e ts'ehetsa tlhahlobo ea ho se atlehe le ntlafatso e tsoelang pele.

fihlela qeto e

Li-PCB tsa semiconductor tsa likoloi li emela litharollo tse khethehileng tsa boenjiniere tse sebetsanang le litlhoko tse ikhethang tsa litsamaiso tsa motlakase oa likoloi tse matla haholo. Katleho e hloka ho kopanngoa ha thepa e tsoetseng pele, tsamaiso e nepahetseng ea mocheso, le mekhoa ea tlhahiso e tiisitsoeng khahlanong le litekanyetso tse thata tsa likoloi. Ha mahlale a SiC le GaN a ntse a ata ho li-powertrain tsa EV le lisebelisoa tsa ho tjhaja, meralo ea PCB e tlameha ho fetoha ho ts'ehetsa maqhubu a phahameng a ho fetoha le ho eketseha ha matla a motlakase.

Highleap Electronics e fana ka bokgoni bo felletseng ba tlhahiso ya di-PCB tsa di-semiconductor tsa dikoloi :

• Moetso o teteaneng oa koporo - Ho fihla ho 6 oz koporo bakeng sa kabo ea matla a hajoale.
• Metal-core substrates - meralo ea IMS le ea koporo e nang le ts'ebetso e ntlafalitsoeng ea mocheso.
• Setifikeiti sa IATF 16949 - Litsamaiso tsa boleng ba likoloi tsa boemo ba likoloi le ho latella morao.
• Qetella litšebeletso tsa PCBA - Ho tloha ho prototype ho ea tlhahiso ea molumo ka mekhoa e tsitsitseng.

Ho sebelisana le moetsi oa PCB oa semiconductor ea tšepahalang oa likoloi ho thusa ho netefatsa ts'ebetso ea nako e telele lits'ebetsong tsa motlakase tse hlokang matla.