Tlhahiso le Tlhahiso ea RO4350B PCB

Leqephe la RO4350B le hokahanya khetho ea thepa le tlhahiso. Lintho tsa bohlokoa tse kenang tlhahisong ke stackup e lokollotsoeng, botenya ba dielectric, kaho ea koporo, litlhoko tsa impedance, ho cheka le mokhoa oa tlhahlobo o sebelisoang ho netefatsa boto e felileng ea mekhahlelo e mengata. Pele ho bapisoa lipalo tsa Drk kapa tahlehelo tse phatlalalitsoeng, ho bala litlhaloso tsa RO4350B le RO4003C ho thusa ho boloka mekhoa ea liteko le likhopolo tsa kaho li tsitsitse.

Tlhahiso ea PCB ea RO4350B e lokela ho qala ka sepheo sa stackup le impedance se lokollotsoeng. Sehlopha sa thepa ka bosona ha se hlalose mola oa RF; botenya ba dielectric bo felileng, profil ea koporo, jiometri ea trace le ngoliso ea lera li phethela kaho. Sebaka sa thepa: Lebitso la sehlahisoa sa Rogers le sebelisoa ho khetholla laminate e boletsoeng bakeng sa kaho ea PCB. Highleap Electronics e fana ka tlhahiso le kopano ea PCB, ha laminate e fumanoa 'me e netefatsoa ka thoko.

Mapolanka a potoloho a hatisitsoeng ( li-PCB ) ke motheo oa lisebelisoa tsa elektroniki tsa sejoale-joale, a sebeletsang e le moralo oa bohlokoa oo likarolo tsa elektroniki li kenngoang le ho hokahanngoa ho oona. Ha theknoloji e ntse e tsoela pele le tlhoko ea lisebelisoa tsa elektroniki tse sebetsang khafetsa le tse sebetsang hantle e ntse e hola, ho khetha thepa e nepahetseng ea PCB ho ba bohlokoa. Har'a lisebelisoa tse tsebahalang haholo le tse sebelisoang haholo bakeng sa lits'ebetso tse sebetsang khafetsa ke Rogers RO4350B. Sengoloa sena se hlahloba thepa, lits'ebetso le lintlha tsa moralo oa Rogers RO4350B, se fana ka pono e felletseng ea hore na ke hobane'ng ha e hlahella e le khetho e khethiloeng hangata bakeng sa lipotoloho tsa RF le microwave.

Kakaretso ea Rogers RO4350B

Rogers RO4350B ke laminate ea resin ea hydrocarbon e tletseng ceramic, e matlafalitsoeng ka khalase e etselitsoeng lits'ebetso tsa PCB tse sebetsang hantle le tse sebetsang khafetsa . Ke karolo ea letoto la li-laminate tsa RO4000® tse hlahisoang ke Rogers Corporation, tse entsoeng ho fihlela litlhoko tse ntseng li hola tsa moralo oa RF le microwave ha li ntse li boloka thepa e theko e tlaase, e ka etsoang habonolo joalo ka thepa e tloaelehileng ea PCB joalo ka FR-4.

Thepa ena e se e tumme haholo lits'ebetsong tse fapaneng tsa maqhubu a phahameng ka lebaka la botsitso ba eona bo botle ba dielectric constant (Dk), tangent e tlase ea tahlehelo (Df), le thepa e phahameng ea mocheso le ea mechini. RO4350B e fana ka tekano e laoloang pakeng tsa ts'ebetso e phahameng ea motlakase le bonolo ba tlhahiso, e leng se etsang hore e tšoanelehe hantle liindastering ho tloha litsamaisong tsa puisano le tsa radar tsa likoloi ho ea litsamaisong tsa lifofane le tsa sesole.

Lintlha tsa bohlokoa tsa Rogers RO4350B

1. Dielectric Constant (Dk) Botsitso

Sephetho sa dielectric (Dk) ke thepa ea bohlokoa bakeng sa thepa ea PCB , kaha se susumetsa lebelo leo matšoao a tsamaeang ka lona potolohong. Ho boloka Dk e tsitsitseng ho pholletsa le mefuta e mengata ea maqhubu ho bohlokoa ho netefatsa botšepehi ba lets'oao, haholo-holo lits'ebetsong tsa maqhubu a phahameng. Rogers RO4350B e fana ka sephetho sa dielectric sa 3.48, ka phapang e nyane holim'a mefuta e mengata ea maqhubu, e leng se etsang hore e lokele lipotoloho tse sebetsang ho tloha ho 500 MHz ho isa ho 40 GHz.

ho ja batho ka bongata-ka-bohlokwa-20260609:1112544

Leqephe lena le lokela ho lula le Rogers RO4350B ka ho khetheha. Bakeng sa ho bapisa le li-laminate tse ling tsa Rogers, sebelisa tataiso ea lisebelisoa tsa Rogers PCB ; bakeng sa bokhoni ba tlhahiso, ho bokella le ho lokisa litheko, hlahloba tlhahiso ea Rogers PCB.

• Boleng ba Dk: 3.48 (± 0.05)
• Moralo Dk: 3.66 (bakeng sa lintlha tse ling tsa moralo)
• Maqhubu Range: 8 GHz ho ea ho 40 GHz

Ho tsitsa hona ho netefatsa ho ata ha matshwao le tshebetso e tsitsitseng ho pholletsa le maqhubu a fapaneng a tshebetso, e leng se etsang hore e tshwanelehe hantle bakeng sa ditshebediso tsa RF, ho kenyeletswa mela ya phetiso, di-antenna le di-amplifier tsa motlakase.

2. Low Loss Tangent (Df)

Tangent ea tahlehelo (Df) e lekanya hore na matla a lets'oao a lahleha hakae e le mocheso ka har'a thepa. Tangent ea tahlehelo e tlase e bolela ho senyeha ho fokolang ha lets'oao le ts'ebetso e ntle ka kakaretso, haholo-holo bakeng sa lits'ebetso tsa lebelo le phahameng le maqhubu a phahameng. Rogers RO4350B e na le tangent ea tahlehelo e tlase ea 0.0037 ho 10 GHz, e netefatsang katleho e phahameng phetisong ea lets'oao ka ho fokotseha ho fokolang. Bakeng sa litsela tse nang le kutloelo-bohloko ho conductor-tahlehelo, likhetho tsa koporo tsa LoPro bakeng sa mohlala oa tahlehelo ea RF li lokela ho hlalosoa hammoho le botenya ba laminate le geometry ea mola.

• Ntho ea ho Felisa (tan δ): 0.0037 ho 10 GHz/23°C
• Df ho 2.5 GHz/23°C: 0.0031

Ntho ena e fokolang ea ho senya e thusa ho fokotsa tahlehelo ea matšoao, ho etsa bonnete ba hore lipontšo tse phahameng tsa maqhubu li fetisoa ka ho senyeha ho fokolang. Sena se etsa hore RO4350B e tšoanelehe haholo bakeng sa lits'ebetso tse batloang joalo ka meralo ea millimeter-wave ka har'a sistimi ea radar ea 77 GHz, meaho ea 5G, le likhokahano tsa satellite.

3. Litšobotsi tsa Thermal

Bakeng sa lisebelisoa tse phahameng, tse nang le matla a phahameng, tsamaiso ea mocheso e bohlokoa bakeng sa ho boloka botšepehi le ts'ebetso ea nako e telele. Rogers RO4350B e fana ka litšobotsi tse ntle tsa mocheso tse netefatsang hore e lula e tsitsitse esita le maemong a mocheso o feteletseng:

• Thermal Coefficient of Dk: +50 ppm/°C (ho tloha -50°C ho isa ho 150°C)
• Mocheso oa Phetoho ea Khalase (Tg): > 280 ° C
• Thermal Decomposition Temperature (Td): 390 ° C
• Matlafatso a Thermal: 0.69 W/m/K ho 80°C

Mehaho ena ea mocheso e etsa hore RO4350B e khone ho mamella mocheso o phahameng o hlahisoang ke matšoao a matla a RF, ho netefatsa hore thepa e lula e tsitsitse ka mokhoa o itekanetseng le ho boloka thepa ea eona ea motlakase ho pholletsa le mocheso o pharaletseng.

4. Botsitso ba Dimensional

Botsitso bo boholo bo bohlokoa ho thepa ea PCB, haholo-holo meralong e mengata moo ho palama libaesekele tse futhumetseng ho ka lebisang ho atoloheng kapa ho honyeng ha thepa. Rogers RO4350B e fana ka botsitso bo botle ba maemo, bo fokotsang kotsi ea ho hloleha ka lebaka la khatello ea maikutlo ea mocheso:

• Coefficient of Thermal Expansion (CTE):
  • X-axis: 10 ppm/°C
  • Y-axis: 12 ppm/°C
  • Z-axis: 32 ppm/°C
• Dimensional Stability: <0.5 mm/m

Ho tsitsa hona ho netefatsa hore thepa e boloka botsitso ba sebopeho sa eona, esita le tlas'a liphetoho tse feteletseng tsa mocheso, ho thibela mathata a kang ho arohana ha koporo kapa ho petsoha ka har'a masoba a phuthetsoeng (PTHs). Tlhahlobo ea tlhahiso ea Highleap e akaretsa ts'ebetso ea thepa, lamination, ho cheka, likarolo tsa koporo, netefatso ea ho qeta le impedance. Moo moralo o sebelisang mekhahlelo e kopantsoeng kapa likarolo tse ntle tsa RF, libaka tseo li bitsoa ka thoko tlhahlobong ea ts'ebetso kahoo mamello e tloaelehileng ea boto ha e sebelisoe ka bofofu. Boleng ba thepa ea thepa bo nepahetseng bo lokela ho hlahlojoa khahlanong le litokomane tsa mofani oa hona joale bakeng sa kereiti e boletsoeng le kaho.

5. Matla a Mechini

Thepa ea mochini ea RO4350B e bohlokoa bakeng sa lits'ebetso moo PCB e ka bang tlas'a khatello ea 'mele, joalo ka nakong ea kopano kapa libakeng tseo ho thothomelang ho leng bohlokoa ho tsona. Thepa e phahameng ea tensile modulus le matla a feto-fetohang a netefatsa ho tšoarella:

• Tensile Modulus (X-axis): 16,767 MPa (2,432 ksi)
• Tensile Modulus (Y-axis): 14,153 MPa (2,053 ksi)
• Matla a Tensile (X-axis): 203 MPa (29.5 ksi)
• Matla a Tensile (Y-axis): 130 MPa (18.9 ksi)
• Flexural Strength: 255 MPa (37 ksi)

Lintho tsena li kenya letsoho ho tiiseng ha thepa le ho etsa hore e tšoanelehe bakeng sa mefuta e mengata ea likopo, ho tloha ho radar ea likoloi ho ea tsamaisong ea sesole.

6. Thepa ea Motlakase

Rogers RO4350B e fana ka insulation e ntle ea motlakase, e bohlokoa bakeng sa ho netefatsa botšepehi ba lets'oao lits'ebetsong tse phahameng haholo le tse matla haholo:

• Ho hanyetsa Bolumo: 1.2 x 10^10 MΩ•cm
• Bokaholimo ba Resistivity: 5.7 x 10^9 MΩ
• Matla a Motlakase: 31.2 KV/mm (780 V/mil)

Thepa ena ea motlakase e netefatsa hore RO4350B e fana ka karohano e tšepahalang ea lets'oao, e thibelang tšitiso ea motlakase lipotolohong tse bobebe tsa RF.

Ho Khetha Boitsebiso bo Nepahetseng ba PCB: Rogers RO4350B vs. FR-4 vs. PTFE

Ha u etsa qeto pakeng tsa Rogers RO4350B, FR-4, le PTFE-based laminates, mona ke lintlha tse ling tse ka u thusang ho tataisa khetho ea hau:

1. Litlhokahalo tsa khafetsa:

• RO4350B: E loketse lits'ebetso tsa maqhubu a phahameng (500 MHz ho isa ho 77 GHz), e nang le ts'ebetso e tsitsitseng ea dielectric le tahlehelo e tlase ea lets'oao, hangata e nahanoang bakeng sa litsamaiso tsa 5G, radar, le microwave ha data ea eona e phatlalalitsoeng le moralo o lokollotsoeng li fihlela litlhoko tsa projeke.
• FR-4 e ka ba e loketseng bakeng sa potoloho ea maqhubu a tlase kapa ea tšehetso ha moeli oa moralo le tekanyetso ea tahlehelo li e lumella.
• PTFE: E loketse lits'ebetso tsa ultra-high-frequency ka holimo ho 10 GHz, e fanang ka tahlehelo e tlase ho feta RO4350B, empa hangata e tla le litšenyehelo tse phahameng le ts'ebetso e rarahaneng.

2. Taolo ea Mocheso:

• RO4350B: E mamella mocheso o phahameng ka Tg> 280 ° C, e fana ka ts'ebetso e ntle ea mocheso ho feta FR-4 empa e tlase ho feta PTFE.
• FR-4: E sebetsana le mocheso o itekanetseng, hangata o pota-potileng 130 ° C-180 ° C, empa e ka 'na ea theola maemo a mocheso o phahameng.
• PTFE: Ts'ebetso e ntle ea mocheso e nang le katoloso e tlase haholo ea mocheso le mocheso o phahameng oa ho bola, e etsa hore e tšepahale maemong a boima, a matla a phahameng a RF.

3. Litšenyehelo:

• RO4350B: Khetho e leka-lekaneng e fanang ka ts'ebetso ea maqhubu a phahameng ka theko e tlase ha e bapisoa le PTFE, empa e theko e boima ho feta FR-4.
• FR-4: E theko e boima ka ho fetisisa bakeng sa tšebeliso e akaretsang ka meralo e fokolang khafetsa le e theko e tlase.
• PTFE: E bitsa chelete e ngata ho feta RO4350B le FR-4 ka bobeli ka lebaka la ts'ebetso ea eona e phahameng le mekhoa e thata ea ho etsa lintho.

Khetha Rogers RO4350B bakeng sa meralo e sebetsang khafetsa le e theko e tlase ho RF, 5G, le radar ea likoloi, moo ts'ebetso, botsitso le litšenyehelo tse itekanetseng li leng bohlokoa. FR-4 e loketse lits'ebetso tse theko e tlase le tse sebetsang khafetsa moo theko e leng taba ea bohlokoa. Khetha li-laminate tse thehiloeng ho PTFE ha u sebetsana le maqhubu a phahameng haholo 'me u hloka tahlehelo e nyane ea lets'oao, empa u itokisetse litšenyehelo tse phahameng le lits'ebetso tse rarahaneng tsa tlhahiso ha li bapisoa le RO4350B le FR-4.

Lintlha tsa Rogers RO4350B Litheko

Ha ho buisanoa ka litheko tsa Rogers RO4350B, ho bohlokoa ho nahana ka lintlha tse 'maloa tse amang litšenyehelo tse akaretsang:

1. Thepa ea Marang: Ha e bapisoa le FR-4 e tloaelehileng, RO4350B e theko e boima haholo ka lebaka la ts'ebetso ea eona e phahameng ea maqhubu a holimo, tahlehelo e tlaase ea tahlehelo, le botsitso ba mocheso. Leha ho le joalo, e lula e le theko e tlaase ho feta PTFE-based laminates joaloka Rogers RT/duroid®.
2. Botenya le Boholo ba Panel: Thepa e fumaneha ka botenya bo bongata (ho tloha ho 0.004 ″ ho isa ho 0.060 ″) le boholo ba liphanele, tse susumetsang litšenyehelo. Li-laminate tse teteaneng kapa liphanele tse kholo li ka baka litšenyehelo tse phahameng tsa thepa.
3. Litlhoko tse khethehileng tsa Kopo: Mefuta e ikhethileng ea RO4350B, joalo ka limaraka tse tšepahalang haholo bakeng sa lisebelisoa tsa sefofane kapa ts'ireletso, li ka jara tefo ka lebaka la lintlha tse ling tsa ts'ebetso joalo ka botsitso bo matlafalitsoeng ba mocheso kapa matla a mochini.
4. Bolumo le Boteng: Litšenyehelo li boetse li itšetlehile ka bongata ba odara le ho fumaneha ha mofani. Bongata bo phahameng ba tlhahiso hangata bo fella ka litšenyehelo tse tlase ka yuniti. Ho fumaneha ha libaka, tsela ea mofani, bongata ba odara, le botenya bo hlokahalang kapa kaho ea koporo li ama litheko le nako ea pele; netefatsa mohloli oa hajoale le litokomane tsa kaho e qotsitsoeng.
5. Litšenyehelo: Le hoja RO4350B e na le litšenyehelo tse ngata ho feta li-laminates tse thehiloeng ho PTFE, e ntse e hloka tlhokomelo ea mekhoa e nepahetseng ea ho etsa lintho (mohlala, ho phunya, ho lokisa mekoti), e ka susumetsang litšenyehelo tsa tlhahiso.
6. Karolelano ea Ts'ebetso ea Litšenyehelo: RO4350B e nkoa e fana ka tekanyo e nepahetseng pakeng tsa ts'ebetso le litšenyehelo, e leng se etsang hore e be khetho e khahlehang bakeng sa lits'ebetso tse hlokang botšepehi ba maqhubu a phahameng le ho khoneha. Sena se etsa hore e ipiletse haholo bakeng sa lits'ebetso tsa khoebo joalo ka metheo e se nang mohala le litsamaiso tsa radar tsa likoloi, moo ts'ebetso e leng bohlokoa, empa ts'ebetso ea litšenyehelo le eona e bohlokoa.

Leha litheko tse itseng li tla fapana ho latela litlhaloso tsa mofani le odara, RO4350B hangata e fana ka tharollo e theko e tlaase bakeng sa meralo ea PCB e sebetsang khafetsa ha e bapisoa le lisebelisoa tse ling tse sebetsang hantle. Bakeng sa likhakanyo tse nepahetseng tsa litšenyehelo, ho khothalletsoa ho kopa khotheishene e ikhethileng ea projeke ho tsoa ho mofani oa thepa ea tšoanelehang kapa moetsi oa PCB.

Mehopolo ea Moralo bakeng sa Rogers RO4350B

Ha ba rala ka RO4350B, baenjiniere ba tlameha ho nahana ka lintlha tse 'maloa ho ntlafatsa ts'ebetso:

1. Taolo ea Impedans: Sebelisa li-curleculator tsa impedance ho ikarabella bakeng sa Dk le botenya ba thepa ho etsa bonnete ba hore ho bapaloa ho nepahetseng ha pherekano lipotolohong tsa RF.
2. Taolo ea Thermal: Sebelisa mocheso oa mocheso oa thepa bakeng sa ho qhala mocheso ka katleho, haholo-holo lits'ebetsong tsa matla a holimo.
3. Moralo oa Multilayer: Netefatsa hore botsitso ba sebopeho sa RO4350B bo sebelisoa ka har'a liboto tsa multilayer, ho fokotsa kotsi ea ho hloleha ka lebaka la ho atolosoa ha mocheso nakong ea phallo kapa ts'ebetso.
4. Tataiso ea ho Iqapela: Latela mekhoa e khothaletsoang ea ho cheka, metallization, le kalafo ea holim'a metsi ho thibela mefokolo e kang tlala ea resin kapa voids.

Tsamaiso ea Tataiso

• Ho baka pele: 125°C ho isa ho 150°C ho tlosa mongobo.
• Ho cheka: Sebelisa likotoana tse ncha tsa ho cheka le lebelo le laoloang ho etsa mekoti e hloekileng.
• Tokiso ea lesoba: Nahana ka mekhoa ea plasma kapa lik'hemik'hale tsa desmear ho etsa bonnete ba hore masoba a hloekile.
• Metallization: RO4350B e lumellana le mekhoa e tloaelehileng ea koporo e se nang motlakase kapa mekhoa e tobileng ea deposit bakeng sa conductivity e tšepahalang.

fihlela qeto e

Rogers RO4350B ke thepa e ikhethang bakeng sa meralo ea PCB e nang le maqhubu a phahameng, e fanang ka tekano ea ts'ebetso e phahameng ea motlakase, matla a mechini, le tlhahiso e theko e tlaase. Phetoho ea eona e tsitsitseng ea dielectric, tangent e tlase ea tahlehelo, le thepa e ntle ea mocheso e etsa hore e be khetho e tšepahalang bakeng sa lits'ebetso tsa RF le microwave ho pholletsa le liindasteri tse kang likhokahano tsa mohala, likoloi, lifofane le lisebelisoa tsa bongaka. Ka ho latela lintlha tse nepahetseng tsa moralo le litataiso tsa ts'ebetso, baenjiniere ba ka sebelisa ka botlalo thepa ea RO4350B ho theha litsamaiso tsa elektroniki tse sebetsang hantle le tse tšepahalang bakeng sa moloko o latelang oa mahlale a maqhubu a phahameng. Bakeng sa khotheishene e tiileng, fana ka lifaele tsa tlhahiso ea hajoale, kaho ea thepa, botenya ba boto, koporo, litlhoko tsa tlhahlobo ea RF le bongata. Sena se lumella khotheishene ho bonahatsa tsela ea 'nete ea tlhahiso.