Popontshwa ya PCB ya High Dr Rogers

Kaha likhokahano tsa 5G, telemetry ea sefofane, le litsamaiso tsa radar tsa likoloi tsa 77GHz li hloka miniaturization e matla ea potoloho, baenjiniere ba lisebelisoa ba qobelloa ho sebelisa li-substrate tse nang le Dielectric Constants e phahameng (Dk). Boenjiniere ba RF, boholo ba 'mele ba potoloho ea resonant bo lekana ka tsela e fapaneng le motso o sekoere oa Drk ea substrate. Leha ho le joalo, ho khetha motsoako o nang le Dk e phahameng ho tsoa ho datasheet ke mohato oa pele feela. Bothata ba 'nete ba boenjiniere bo ho utloisisa hore na thepa ena e tsoetseng pele e itšoara joang mokatong oa fektheri.

Li-substrate tse fapaneng tse nang le maqhubu a phahameng—esita le tse nang le thepa e tšoanang ea motlakase—li arabela ka tsela e fapaneng haholo nakong ea ho sebetsa ka CNC, ka metallization, le multi-lamination. Joaloka moetsi ea khethehileng oa boto ea potoloho e hatisitsoeng ea RF, Highleap Electronics e ntlafalitse tataiso ena ea tekheniki ho u thusa ho tsamaea likhethong tsa rona tse tsoetseng pele tsa thepa ea PCB laminate . Ka ho utloisisa linnete tse ikhethang tsa tlhahiso ea letoto la Rogers RO3000®, RO4360G2™, le TMM10i™, u ka netefatsa hore moralo oa hau o latelang oa microwave o tsitsitse ka motlakase ebile o hlahisoa ka bongata ntle le litšenyehelo tse sa lebelloang.

Kopa Khoteshene ea Rogers DFM & Fabrication

Letoto la RO3000: Lipere tsa PTFE bakeng sa Tahlehelo e Tlase haholo

Letoto la Rogers RO3000 le hahiloe holim'a motsoako oa Polytetrafluoroethylene (PTFE) o tletseng ceramic. PTFE e tumme indastering ea microwave ka lebaka la factor ea eona e fokolang haholo ea ho qhala (Df), ho bolelang hore e fetola matla a pontšo a batlang a se na letho hore e be mocheso o senyehileng. Ka ho fetola bongata ba setlolo sa ceramic, Rogers e fana ka likhetho tse fapaneng tsa Dk bakeng sa litlhoko tse itseng tsa miniaturization.

Bakeng sa li-radar tsa ho qoba ho thulana ha likoloi tsa 77GHz le meralo ea maqhubu a millimeter moo ho bolokoa ha matšoao ho leng bohlokoa, baenjiniere hangata ba totobatsa Rogers RO3035. Dr ea eona ea 3.50 e fana ka mokhoa o leka-lekaneng, o fanang ka coefficient e tlase ea mocheso ea Dr (TCDk) e thibelang "ho sotha" ha mahlaseli a radar nakong ea boemo ba leholimo bo feteletseng. CTE ea eona ea Z-axis ea 24 ppm/°C e tšoana hantle le koporo, e netefatsa hore e na le mekhahlelo e mengata ka ts'epo.

Ha leoto la 'mele le hloka ho hatelloa ho ea pele—joalo ka li-amplifier tsa motlakase tsa sub-6 GHz kapa li-antenna tsa GPS patch—Rogers RO3006 e fana ka Drk ea 6.15. Bakeng sa litlhoko tse feteletseng tsa miniaturization, joalo ka li-filters tsa telemetry tsa sefofane le li-LNB tsa satellite tsa X-band, Rogers RO3010 e sutumelletsa moeli ka Drk e kholo ea 10.2.

RO4360G2: Ho Feta Bottleneck ea PTFE

Ho rarolla mathata a tlhahiso a amanang le Teflon, Rogers o hlahisitse mokhoa o fapaneng ka ho feletseng oa lik'hemik'hale. Rogers RO4360G2 e fana ka melemo e tšoanang hantle ea miniaturization (Dk 6.15) le RO3006, empa e entsoe ka ho sebelisa resin ea thermoset ea ceramic ea hydrocarbon e matlafalitsoeng ka khalase.

Hobane ha se PTFE, ha e qhibilihe le ho tlola hodima dikarolo tsa koporo tse ka hare nakong ya ho tjheka ha CNC. E ka tloswa le ho peilwa ka ho sebedisa mela e tloaelehileng ya khemistri ya FR-4 permanganate. "Bokgoni bona ba ho sebetsa ba FR-4" bo fokotsa haholo dinako tsa tlhahiso mme bo theola theko ya prototype ha e bapiswa le di-laminate tsa microwave tsa setso.

Ho feta moo, RO4360G2 e arolelana kinetics e lumellanang ea ho phekola le Glass Transition Temperatures (Tg) le li-resin tse tloaelehileng tsa epoxy. Sena se etsa hore e be 'mampoli ea sa hanyetsoeng bakeng sa li-stackups tse ngata tsa hybrid tse theko e tlaase. Highleap Electronics e sebelisa RO4360G2 khafetsa holim'a likarolo tse ka ntle (L1-L2) bakeng sa ho tsamaisa 5G RF, ha e ntse e sebelisa High-Tg FR-4 e theko e tlase kahare bakeng sa logic ea dijithale le kabo ea matla. Ka ho sebelisa diresepe tse nepahetseng, tse sa lekanang tsa mocheso nakong ea potoloho ea khatiso ea lamination, re atleha ho phekola lisebelisoa tsena tse fapaneng ntle le ho baka warpage e sa lekanang ("phello ea" litapole-chip ").

TMM10i: Ho Bolela Esale Pele ha Isotropic Khahlanong le Nnete ea Machining

Bongata ba li-laminate tse nang le maqhubu a phahameng li sebelisa lesela la fiberglass le lohiloeng bakeng sa tšehetso ea sebopeho. Sena se hlahisa phello ea anisotropic, ho bolelang hore phetoho ea dielectric e fapana hanyane ho latela hore na lets'oao le tsamaea ho latela X, Y, kapa Z axis. Bakeng sa meaho e rarahaneng ea tataiso ea maqhubu a 3D le li-filters tsa cavity tse mamellanang hantle, ho se lebelloe hona ho senya ts'ebetso.

Rogers TMM10i e tlosa fiberglass ka botlalo. Ke resin ea thermoset e hokahaneng haholo e tletseng ceramic, e fanang ka Dk ea 9.80 e nang le botsitso bo phethahetseng ba isotropic. E sebetsa hantle joalo ka karolo e thata ea alumina ceramic. Bakeng sa moralo oa thermoset high-Dk, tlhahiso ea TMM13i compact RF-board e fana ka nyeoe e fapaneng ea ts'ebetso ho tsoa meahong e thehiloeng ho PTFE.

Leha ho le jwalo, thepa ena e emela phephetso e kgolo ka ho fetisisa ya ho sebetsa ka mechine. Bongata bo feteletseng ba ceramic bo tla senya dikotwana tse tlwaelehileng tsa tungsten carbide drill ka dikotwana tse ka tlase ho 100. Haeba fektheri e leka ho sutumelletsa drill bit e lerootho ka TMM10i ho boloka ditjeo tsa disebediswa, e tla baka ho robeha ha microscopic (ho robeha ha micro) maboteng a via. Nakong ya ho phalla ha SMT hape, dikhemikhale tse tshwerweng ka hare ho dikotwana tsena tse nyane di tla bela mme di phatlole plating ya koporo leboteng la via. Ho sebetsana le TMM10i ho hloka hore fektheri e qobelle meedi e thata ya ho robeha ha drill, e fokotse RPM ya spindle, mme e sebedise dikotwana tse ikgethang tsa router tse sehilweng ka daemane ho thibela substrate e brittle hore e se ke ya robeha mathokong a boto.

Papiso ea Master DFM: Khemistri ea Motheo le Bakhanni ba Litšenyehelo

Ho khetha substrate e nang le Dk e phahameng ke boikoetliso ba ho leka-lekanya tlhoko ea motlakase khahlanong le 'nete ea tlhahiso. Tafole e ka tlase e hlalosa liphapang tsa mantlha tse susumetsang ho rarahana ha tlhahiso le litšenyehelo.

Tlhahiso ea Turnkey bakeng sa li-PCB tse nang le maqhubu a phahameng

Boto ea Dr 10.2 e ka 'na ea etsisa hantle ho HFSS, empa haeba ketane ea hau ea phepelo e sa khone ho sebetsana le plasma desmear e nepahetseng, ho qoelisoa ha trace e tšesaane haholo, le ho soldera ha SMT e se nang letho, sehlahisoa sa 'mele se tla hloleha tšimong.

Hobane PTFE e bonolo le li-thermosets tsa ceramic tse brittle li kotsing e kholo ea ho senyeha ha ho sebetsoa, ​​ho tsamaisa mapolanka ana a se nang letho pakeng tsa moetsi le ntlo e arohaneng ea kopano ho eketsa kotsi ea tšilafalo, liphetoho tsa impedance le ho qhaqha ha edge. Ho Highleap Electronics, re felisa kotsi ena ka ho sebetsa joalo ka moetsi oa mohloli o le mong.

Re fetola projeke ea hau ntle le mathata ho tloha meleng ea rona e tsoetseng pele ea ho etsa boto e se nang letho e nang le maqhubu a phahameng ka ho toba ho ea litsing tsa rona tsa kopano ea SMT e nepahetseng. Re sebelisa Laser Direct Imaging (LDI) bakeng sa bophara bo nepahetseng ba trace le tlhahlobo ea 3D X-Ray (AXI) bakeng sa ho thella ha mocheso o se nang letho tlas'a likarolo tsa RF tse matla a phahameng, re netefatsa hore li-module tsa hau tsa Massive MIMO kapa radar li sebetsa hantle kamoo ho reriloeng kateng. Ikopanye le sehlopha sa rona sa boenjiniere kajeno ho hlahloba lifaele tsa hau tsa Gerber le tlhophiso ea stackup.