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Ho Khetha Ntho e nepahetseng ea PTFE bakeng sa PCB ea Hao
Li-PCB ke motheo oa lisebelisoa tsa elektroniki tsa sejoale-joale, tse fanang ka likamano tsa bohlokoa lipakeng tsa likarolo tsa elektroniki. Leha FR4 e le thepa e tloaelehileng bakeng sa li-PCB tse ngata ka lebaka la ho boloka litšenyehelo tsa eona hantle, li-PCB tsa PTFE, tse entsoeng ka li-substrate tsa polytetrafluoroethylene (PTFE), li fana ka thepa e ikhethang e li etsang hore li be ntle bakeng sa lits'ebetso tse hlokang boiteko bo bongata. Tataisong ena e felletseng, re tla hlahloba lefats'e la theknoloji ea PTFE PCB, re hlahlobe litšobotsi tsa eona tsa bohlokoa, liphapang ho tsoa ho FR4, lits'ebetso tse tloaelehileng, le tse ling.
PTFE PCB ke eng?
PTFE PCB e emetse Polytetrafluoroethylene Printed Circuit Board. Ke mofuta oa boto ea potoloho moo thepa ea substrate e entsoeng ka PTFE, e leng fluoropolymer ea maiketsetso. PTFE e tsebahala ka thepa ea eona e ntle ea dielectric, khanyetso ea lik'hemik'hale, le botsitso ba mocheso, e leng se etsang hore e be e loketseng lits'ebetso tsa maqhubu a phahameng le tse sebetsang hantle. Li-PCB tsa PTFE li sebelisoa hangata lits'ebetsong tsa RF (Radio Frequency) le microwave ka lebaka la ho se fetohe ha tsona ha dielectric le tahlehelo e tlase, e leng se lumellang phetiso ea lets'oao e sebetsang hantle maqhubung a phahameng.
Thepa ea PTFE Circuit Board
Li-PCB tsa PTFE li fana ka sete e ikhethang ea thepa e ba khethollang ho liboto tse tloaelehileng tsa potoloho:
- Khanyetso ea Lik'hemik'hale: PTFE e boloka thepa ea eona ha e pepesehetse oli, mafura le lik'hemik'hale, e etsa hore e tšoanelehe bakeng sa tikoloho e thata ea lik'hemik'hale.
- Tlase Mocheso Durability: PTFE e boloka ho feto-fetoha ha maemo le ho tiea esita le ka mocheso o tlase haholo, ho fihlela ho -196 ° C, ho etsa hore e loketse lits'ebetso tsa cryogenic.
- Boemo ba leholimo: PTFE e ema hantle bakeng sa maemo ohle a leholimo, ho kenyelletsa le mahlaseli a kotsi a UV, mongobo, le mocheso o feteletseng, o lumellang tšebeliso ea sebaka ka ntle le e sa tsitsang.
- Litahlehelo tse tlase tsa Dielectric: PTFE's non-polar nature e fella ka tahlehelo ea mats'oao a tlase haholo, haholo ho maqhubu a phahameng, a e etsa e loketseng RF le lits'ebetso tsa maqhubu a holimo.
- Sebaka se sa Thupeng: Sebopeho sa limolek'hule tsa PTFE se e fa sebaka se thellang, se sa khomarelang, se thibelang tšilafalo le ho nolofatsa kopano ea PCB le ho hloekisa.
- Khanyetso ea Mongobo: Ka ho monya metsi a tlase haholo, liboto tsa PTFE li mamella maemo a mongobo o phahameng ntle le ho senyeha ha motlakase kapa 'mele.
- Thepa e Khabane ea Motlakase: PTFE e fana ka dielectric tse phahameng tse mamellang voltage le molumo oa resistivity, e nolofatsang taolo ea impedance ka mochine oa eona o tsitsitseng oa dielectric oa hoo e ka bang 2.0.
Sebopeho sa Lisebelisoa tse thehiloeng ho PTFE
Ho fapana le lifilimi tse tenya joalo ka polyimide e feto-fetohang, lisebelisoa tse thehiloeng ho PTFE ke lintho tse kopaneng tse entsoeng ho tsoa PTFE hammoho le motsoako oa li-additives le li-filler. Kenyelletso ea li-additives le li-filler ke eona e khethollang thepa ea PCB e fumanehang khoebong ea PTFE bakeng sa lits'ebetso tse fapaneng. Karolo ea mantlha ea lisebelisoa tsena ke matrix a PTFE a sa sebetseng, a nang le li-additives tsohle tse kentsoeng ka har'a matrix a PTFE, ka kopanelo a khethollang matla a motlakase, mochini le mocheso oa laminate.
Li-additives ho Lisebelisoa tse thehiloeng ho PTFE
Kenyelletso ea li-additives le li-filler ke karolo ea bohlokoa ea thepa e thehiloeng ho PTFE, e nolofalletsang mefuta e mengata ea thepa mefuteng ea khoebo. Ho na le mefuta e 'meli ea mantlha ea li-additives:
- Reinforcements: Haholo-holo ho susumetsa boitšoaro ba mechine.
- Li-Fillers: Li ama thepa ea mochini le ea dielectric.
Matlafatso
- E matlafalitsoeng ka khalase: E sebelisa likhalase tse lohiloeng, tse ka bang tsa maemo kapa tse sa reroang, tse fanang ka ho tiea ho matla khahlano le ho kobeha le bonolo ho hlahisa.
- E Matlafalitsoeng ka Ceramic: E sebelisa likhoele tsa ceramic ho fana ka botsitso, ho lokisa thepa ea thepa.
- Ha e matlafatsoe: E na le matrix a PTFE feela ntle le li-reinforcements, tse ka 'nang tsa e-na le li-filler tsa ceramic particle,' me e bonolo haholo empa ho thata ho sebetsa le eona nakong ea ho etsoa.
Litlatse
Li-ceramic powders ke tsona tse ka sehloohong tse tlatsang li-laminates tse thehiloeng ho PTFE, tse fanang ka melemo ho feta matrix a khalase e lohiloeng kapa e sa reroang e le matlafatso. Li-ceramics li fana ka conductivity e phahameng ea mocheso ho feta lisebelisoa tsa motheo tsa PTFE 'me li ka fetola thepa ea dielectric ho finyella litekanyetso tse phahameng tsa Dk, tse loketseng lisebelisoa tse tlaase tsa RF.
Melemo ea Ceramics ho PTFE-Based Laminates
Li-laminate tse matlafalitsoeng ka ceramic li ratoa haholo lits'ebetsong tsa RF ka lebaka la melemo e mengata ho feta mefuta e fapaneng e matlafalitsoeng ka khalase. Tlhahiso ea Ceramics:
- E phahameng mocheso conductivity.
- Phetoho ea thepa ea dielectric bakeng sa boleng ba Dk.
- Ho felisoa ha litaba tsa fiber fiber weave, haholo-holo tse bohlokoa ho maqhubu a phahameng a amanang le litsamaiso tsa mmWave.
- Bokhoni bo pharalletseng ba boenjiniere ba ho hlophisa thepa ea thepa, ho kenyeletsoa conductivity ea mocheso, CTE (Coefficient of Thermal Expansion) e sa tsamaisaneng le koporo, botsitso bo sa feleng ba dielectric, le phokotso ea ngoliso e fosahetseng ea layer-to-lay.
Khetho ea Lisebelisoa tse thehiloeng ho PTFE bakeng sa RF Systems
Bakeng sa mealo e mesesaane ea dielectric, thepa ea PTFE e tletseng ceramic e ratoa haholo, haholo-holo maqhubung a phahameng haholo moo thepa e matlafalitsoeng ka khalase e lokelang ho qojoa. Leha thepa e sa matlafalitsoeng e ka amoheleha, ho thata ho e sebetsana le eona nakong ea tlhahiso ka lebaka la ho tenyetseha ha eona. Barekisi ba ka sehloohong ba fanang ka li-laminate tse thehiloeng ho PTFE tse nang le boleng ba Dk ho tloha ho 3-10 ba kenyelletsa laminate e khethehileng e nang le tahlehelo e tlase, Arlon, le Taconic.
Bakeng sa tlhahlobo e felletseng ea tlhahiso, sebelisa sengoloa sena hammoho le tlhahlobo ea thepa ea boto ea potoloho le bokhoni ba ho kopanya ba SMT ha u hlahloba litlhoko tsa stackup, kopano, kapa liteko.
Khetho ea Boitsebiso ba PTFE
Ha u khetha lisebelisoa tsa PTFE bakeng sa lits'ebetso tse ikhethileng, ho bohlokoa ho nahana ka dielectric constant (Dk) le dissipation factor (Df) ho netefatsa ts'ebetso e nepahetseng. Tafole e latelang e hlalosa lisebelisoa tse fapaneng tsa PTFE tse nang le boleng ba Dk le Df, e thusang khethong ea lisebelisoa tse loketseng litlhoko tse khethehileng tsa moralo.
| lintho tse bonahalang | Dk | Df |
|---|---|---|
| Arlon Diclad 880 | 2.17 | 0.0009 |
| Taconic TLY-5 A | 2.17 | 0.0009 |
| Taconic TLY-5 D | 2.20 | 0.0009 |
| laminate e khethehileng e nang le tahlehelo e tlase RT5880 | 2.20 | 0.0009 |
| Arlon Diclad 527 | 2.40-2.60 | 0.0022 |
| Arlon AD255 | 2.55 | 0.0018 |
| Taconic TLX-8 | 2.51-2.59 | 0.0019 |
| Ultralam 2000 | 2.40-2.60 | 0.0019 |
| Arlon AD300 | 3.0 | 0.003 |
| Taconic RF-30 | 3.0 | 0.0014 |
| laminate e khethehileng e nang le tahlehelo e tlase | 3.00 +/- 0.04 | 0.0013 |
| laminate e khethehileng e nang le tahlehelo e tlase | 3.02 +/- 0.04 | 0.0016 |
| Arlon AD350 | 3.50 | 0.003 |
| Arlon AD350A | 3.50 | 0.003 |
| Taconic RF-35 | 3.50 | 0.0018 |
| Taconic RF-35P | 3.50 | 0.0025 |
| laminate e khethehileng e nang le tahlehelo e tlase | 3.50 + -0.05 | 0.0017 |
| Arlon AD450 | 4.50 | 0.0035 |
| Taconic RF-45 | 4.50 | 0.0037 |
| Arlon AD600 | 6.15 | 0.003 |
| Taconic RF-60 | 6.15 | 0.0028 |
| Taconic RF-60A | 6.15 | 0.0028 |
| laminate e khethehileng e nang le tahlehelo e tlase | 6.15 | 0.002 |
| laminate e khethehileng e nang le tahlehelo e tlase | 6.15 | 0.0027 |
| laminate e nang le tahlehelo e tlase ea Dk e phahameng | 6.0 | 0.0023 |
| Arlon AD10 | 10.20 | 0.005 |
| Arlon AD1000 | 10.20 | 0.0023 |
| Arlon AR1000 | 10.00 | 0.003 |
| Taconic CER-10 | 10.00 | 0.0035 |
| laminate e khethehileng e nang le tahlehelo e tlase | 9.20 + -0.23 | 0.0023 |
| laminate e khethehileng e nang le tahlehelo e tlase | 9.80 + -0.245 | 0.002 |
| laminate e khethehileng e nang le tahlehelo e tlase | 10.20 + -0.30 | 0.0023 |
| laminate e khethehileng e nang le tahlehelo e tlase | 10.20 + -0.50 | 0.0027 |
Litlhahiso tse latelang li ipapisitse le litekanyetso tse fanoeng tsa Dk le Df bakeng sa thepa ka 'ngoe ea PTFE:
- Bakeng sa lisebelisoa tse nang le Dk ho pota 2.17-2.20, ho khothaletsoa ho sebelisa TLY-5 A, TLY-5, kapa Diclad 880.
- Lisebelisoa tse nang le Dk ho pota 2.55 li lokela ho nahana ka TLX-8 kapa Diclad 527, ka tlhahiso ea ho ntlafatsa AD255 ho AD255A.
- A Dk hoo e ka bang 3.0 e fana ka maikutlo a ho sebelisa RF-30 kapa AD300.
- Bakeng sa lisebelisoa tse nang le Dk ho pota 3.50, RF-35 kapa AD350A lia khothaletsoa.
- AD450 e khothaletsoa bakeng sa lisebelisoa tse nang le Dk ho pota 4.50.
- A Dk hoo e ka bang 6.15 e fana ka maikutlo a ho sebelisa RF-60A.
- A Dk ho pota 10 e fana ka maikutlo a ho sebelisa AD1000, CER-10.
PTFE PCB VS FR4 PCB: Phapano ke Efe? Joang ho Khetha?
PTFE (Polytetrafluoroethylene) le FR4 ke lisebelisoa tse peli tse fapaneng tse sebelisoang libotong tsa potoloho, e 'ngoe le e' ngoe e na le litšobotsi tsa eona le lits'ebetso. Ho utloisisa phapang pakeng tsa bona ke habohlokoa bakeng sa ho khetha boitsebiso bo loketseng ka ho fetisisa litlhoko tsa hau tse khethehileng:
- Ho hanyetsa Thermal le Chemical:
- PTFE: E fana ka khanyetso e phahameng ea mocheso, e mamella mocheso ho tloha -192°C ho ea ho 250°C. E boetse e hanyetsa haholo lik'hemik'hale, e etsa hore e tšoanele libaka tse thata.
- FR4: Le hoja FR4 e le thepa e tloaelehileng 'me e fana ka khanyetso e ntle ea mocheso ho fihlela ho 110 ° C, ha e hanyetsane le lik'hemik'hale tse bohale joaloka PTFE.
- Litšenyehelo:
- PTFE: Ka kakaretso e tla ka litšenyehelo tse phahameng, hoo e ka bang makhetlo a 5-10 ho feta a liboto tsa FR4.
- FR4: E boloka chelete e ngata, e etsa hore e be khetho e ratoang bakeng sa lisebelisoa tsa elektroniki tsa bareki le lits'ebetso tse ling moo litšenyehelo e leng tsona tse lokelang ho nahanoa.
- dikopo:
- PTFE: E loketse liindasteri, sesole, sefofane, le lisebelisoa tse ling tse boima moo mocheso o phahameng kapa lik'hemik'hale tse bohale li leng teng. E boetse e loketse lits'ebetso tsa cryogenic.
- FR4: Ka tloaelo e sebelisoa lits'ebetsong tse ngata tse akaretsang, ho kenyeletsoa le lisebelisoa tsa elektroniki tsa bareki, ka lebaka la ts'ebeliso e ntle ea litšenyehelo le ho tšoaneleha bakeng sa maemo a tloaelehileng a ts'ebetso.
- Sebopeho sa Botšepehi:
- PTFE: E boloka botšepehi ba eona ba sebopeho ka mocheso o phahameng, ho etsa hore e tšoanelehe bakeng sa lits'ebetso tse hlokang ts'ebetso e tšepahalang maemong a feteletseng.
- FR4: E qala ho lahleheloa ke bots'epehi ba eona ba sebopeho ka holimo ho 110 ° C, e fokotsa tšebeliso ea eona libakeng tse phahameng tsa mocheso.
- Inertness ea lik'hemik'hale:
- PTFE: Ho kenella ka lik'hemik'hale, ho hanyetsa hoo e batlang e le lik'hemik'hale tsohle tsa indasteri le metsoako e ka senyang FR4.
- FR4: E ka senyeha habonolo ke lik'hemik'hale tse itseng ha li bapisoa le PTFE.
| Property | PTFE | FR4 |
|---|---|---|
| mocheso Range | -192°C ho feta 260°C | 110°C boholo |
| Kamehla ea Dielectric | 2.1 - 2.6 | 3.8 - 4.8 |
| Matla a Dielectric | 300-500 V / mil | 150-200 V / mil |
| Ho khaotsa Metsi | 0.03-0.1% | 0.1% |
| Khanyetso ea Lik'hemik'hale | E ntle haholo - e hanyetsana le hoo e batlang e le lik'hemik'hale tsohle | E itekanetseng - e senyehile ke li-solvents/acids tse ling |
| Ho khanna ho chesang | 0.440 - 0.95 W/m/K | 0.3-0.6 W/m/K |
| tenyetseha | E ka ba e thata kapa ea tenyetseha | E thata |
| ditjeho | 5-10x ho feta FR4 | Low |
Ka bokhutšoanyane, ha u khetha pakeng tsa PTFE le FR4 bakeng sa lisebelisoa tsa boto ea potoloho, nahana ka maemo a ts'ebetso, ho kenyelletsa le meeli ea mocheso le likotsi tsa ho pepeseha ha lik'hemik'hale. Haeba kopo ea hau e hloka khanyetso e phahameng ea mocheso le lik'hemik'hale, haholo-holo libakeng tse thata, PTFE e ka ba ea bohlokoa ka litšenyehelo tse phahameng. Leha ho le joalo, bakeng sa lits'ebetso tse tloaelehileng moo litšenyehelo e leng taba ea mantlha, FR4 e lula e le khetho e baballang chelete le e tšepahalang.
PTFE PCB Manufacturing and Assembly Provider – Highleap Electronic
Highleap Electronic ke mofani ea ka sehloohong oa lits'ebeletso tsa tlhahiso ea PTFE PCB le likopano, e fanang ka mefuta e mengata ea tharollo bakeng sa moralo, nts'etsopele le tlhahiso ea PTFE PCB tsa boleng bo holimo. Mona ke likarolo tse ling tsa bohlokoa tsa tlhahiso le litšebeletso tsa kopano tsa Highleap Electronic's PTFE PCB:
- Theknoloji e tsoetseng pele ea Tlhahiso: Highleap Electronic e sebelisa theknoloji ea morao-rao ea ho etsa lihlahisoa ho netefatsa boleng bo phahameng ka ho fetisisa le ho nepahala ha tlhahiso ea PTFE PCB.
- Baenjineri ba nang le boiphihlelo: Sehlopha sa rona sa baenjiniere ba nang le boiphihlelo se ikemiselitse ho fana ka litharollo tse ncha le boiphihlelo ba mahlale nakong eohle ea ts'ebetso ea tlhahiso ea PTFE PCB.
- Litšebeletso tse Felletseng tsa Kopano: Highleap Electronic e fana ka mefuta e mengata ea litšebeletso tsa kopano bakeng sa li-PCB tsa PTFE, ho kenyeletsoa kopano ea thekenoloji ea holim'a metsi (SMT), kopano ea likoti, le kopano ea theknoloji e tsoakiloeng, ho fihlela litlhoko tse fapaneng tsa bareki ba rona.
- Taolo ea Boleng: Re na le mehato e tiileng ea ho laola boleng ho netefatsa hore PTFE PCB e 'ngoe le e 'ngoe e kopana le maemo a holimo ka ho fetisisa a boleng le ho tšepahala.
- Nako ea ho Fetolela ka Potlako: Highleap Electronic e utloisisa bohlokoa ba ho fana ka thepa ka nako. Re fana ka linako tse potlakileng tsa ho fetola maemo ho kopana le linako tse batloang ke bareki ba rona.
Ka boitseanape ba rona le boitlamo ba rona ba boleng, Highleap Electronic ke molekane ea loketseng bakeng sa bareki ba hlokang li-PCB tsa boleng bo holimo tsa PTFE bakeng sa lits'ebetso tse fapaneng.
E fumaneha Teflon PCB Models
Ho na le mefuta e fapaneng ea mefuta ea Teflon PCB e fumanehang 'marakeng, ka bafepedi ba kenyeletsang laminate e khethehileng e nang le tahlehelo e tlase, Taconic, Taizhou Wangling, Nelco, le Arlon. Le ha e se li-PCB tsohle tse khethehileng tsa laminate tse nang le tahlehelo e tlase tse leng Teflon PCB, li-PCB tsohle tsa PTFE ke li-PCB tsa Teflon. Tsena ke tse ling tsa lisebelisoa tsa Teflon PCB tseo u ka khethang ho tsona (tsena li fumaneha ho Highleap Electronic, 'me haeba u sa li fumane mona, u kanna oa se ke ua li fumana ho bahlahisi ba bang ba Teflon PCB):
| PTFE Laminates Suppliers | Letoto la lintho tse bonahalang | Mefuta ea PTFE Laminate |
|---|---|---|
| Arlon (MANG) | Diclad | Diclad522, Diclad527, Diclad870, Diclad880 |
| Cuclad | Cuclad250GT, Cuclad250LX, Cuclad250GX, Cuclad233LX, Cuclad233GY, Cuclad217LX, Cuclad 217GY | |
| Isoclad | Isoclad933, Isoclad917 | |
| AD | AD250, AD255, AD255A, AD255C, AD255IM, AD255L, AD260A, AD270, AD350, AD350A, AD300, AD320, AD300C, AD300A, AD410, AD450, AD600, AD1000 | |
| tse ling | AR1000, CLTE, CLTE-LC, CLTE-AT, CLTE-XT, TC350, TC600, EP-2 | |
| Nelco | NX9000 | NX9240, NX9245, NX9250, NX9255, NX9260, NX9294, NX9300, NX9320… |
| NY9000 | NY9208, NY9217, NY9220, NY9233… | |
| NH9000 | NH9294, NH9300, NH9320, NH9338, NH9348, NH9350… | |
| laminate e khethehileng e nang le tahlehelo e tlase | RT5000 | RT5880, RT5870 |
| RT6000 | RT6002, RT6006 | |
| RT6010LM | ||
| laminate e khethehileng e nang le tahlehelo e tlase | laminate e khethehileng e nang le tahlehelo e tlase, laminate e ikhethang e nang le tahlehelo e tlase | |
| laminate e khethehileng e nang le tahlehelo e tlase, laminate e ikhethang e nang le tahlehelo e tlase | ||
| laminate e khethehileng e nang le tahlehelo e tlase, laminate e ikhethang e nang le tahlehelo e tlase | ||
| laminate e khethehileng e nang le tahlehelo e tlase | ||
| Ultralam 2000 | Ultralam 2000 | |
| Ultralam 3000 | Ultralam 3850 | |
| Taizhou Wangling | F4B | F4B-2 |
| TF-1, 2 | TF-1, 2 | |
| TP-2 | TP-2 | |
| F4D-2 | F4D-2 | |
| TP-12 | TP-12 | |
| Taconic | TLX | TLX-0, TLX-6, TLX-7 |
| TLX-8, TLX-8-CL1, TLX-9 | ||
| TLY | TLY-3, TLY-5, TLY-5A | |
| TLC | TLC-27 | |
| TLC-30, TLC-32 | ||
| RF | EA-30-RF | |
| RF-60, RF-60A | ||
| RF-35, RF-35P | ||
| RF-45, RF-41 | ||
| RF-35A, RF-35A2 | ||
| TRF-45, TRF-43, TRF-41 | ||
| EA-2-TF | ||
| TLT | TLT-7, TLT-8, TLT-9，TLT-0, TLT-6 | |
| TL | TL-32, TL-35 | |
| TLF | TLF-35 | |
| TLK | TLK-8 | |
| ALT | TLA-6 | |
| RF | RF-35TC | |
| tse ling | CER10, TSM-30 | |
| TLX-9 | TLX-9-0200 |
Har'a thepa ea Teflon PCB ea laminate e nang le tahlehelo e tlase, li-laminate tsa RT5000 (letoto la RT5000 le letoto la RT6000) li sebelisoa haholo bakeng sa lits'ebetso tsa sesole le tsa lifofane, ha letoto la laminate le nang le tahlehelo e tlase le sebelisoa hangata bakeng sa lits'ebetso tsa khoebo.
Ela Hloko: Letoto le tsebahalang la laminate e nang le tahlehelo e tlase, laminate e nang le tahlehelo e tlase, ha se ya Teflon PCB kaha laminate e itshetlehile ka letsopa, ha se ya PTFE.
Lisebelisoa tse tsoetseng pele tsa PCB tse phahameng
PTFE (Polytetrafluoroethylene) ke thepa e tsotehang, e tsejoang ka thepa ea eona e ikhethang e etsang hore e be e loketseng bakeng sa mefuta e fapaneng ea likopo, haholo-holo sebakeng sa liboto tsa potoloho tse hatisitsoeng (PCBs). Ho hanyetsa ha eona ka tsela e ikhethang ea lik'hemik'hale, ho tšoarella ha mocheso o tlase, le bokaholimo bo se nang lithupa ke tse ling tsa litšoaneleho tse e khethollang ho lisebelisoa tsa setso tsa PCB. Ha re ntse re kenella ka botebo lefats'eng la lisebelisoa tsa PCB, re tla hlahloba lisebelisoa tse tsoetseng pele tsa ts'ebetso e phahameng tse sutumetsang meeli ea se ka khonehang lisebelisoa tsa elektronike tsa morao-rao. Ha re hlahlobeng tse ling tsa lisebelisoa tsena tsa morao-rao tse ntseng li fetola indasteri ea PCB:
| Item | Boitsebiso bakeng sa Prototype ea PCB |
|---|---|
| Kakaretso Tg FR4 | shengyi S1141, Kingboard KB6160A |
| Phahameng-Tg Halogen-mahala | shengyi S1170G Halogen-free TG170, TU-862 HF TG170 |
| Halogen-mahala e mahareng Tg | shengyi S1150G Halogen-free TG150 |
| CTI e se nang Halogen e phahameng | shengyi S1151G( CTI≥600V) |
| CTI e phahameng | shengyi S1600( CTI≥600V)Kingboard KB6160C |
| Lintho tse khethehileng (Mocheso o phahameng o tlase) | shengyi SH260 |
| Tg FR4 e phahameng | S1000-2, S1000-2M, IT180A |
| Ceramic Powder e Tlatsitseng Maqhubu a Phahameng | laminate e nang le tahlehelo e tlase e khethehileng, laminate e nang le tahlehelo e tlase e khethehileng, Arlon25N, shengyi S7136 |
| PTFE High Frequency Material | laminate e khethehileng e nang le tahlehelo e tlase, Taconic, Arlon, Taizhou wangling |
| High Frequency PCB PP | laminate e ikhethang ea tahlehelo e tlase ea 0.1mm, shengyi Synamic6 |
Teflon PCB Manufacturing: Lintlha Tse Ka sehloohong
Teflon PCB, e tsejoang hape e le PTFE PCB, ke mofuta o ikhethang oa boto ea potoloho e hatisitsoeng khafetsa e sebelisang Polytetrafluoroethylene, e tsejoang haholo e le Teflon, lebitso la khoebo la Dupont Corporation bakeng sa thepa ea eona ea PTFE. Ho etsa liboto tsa potoloho ea Teflon ho hloka ho nepahala le ho ba hlokolosi ka lebaka la liphapang tse fapaneng lipakeng tsa Teflon le thepa e tloaelehileng ea PCB ea FR4. Mehato ea bohlokoa ea tlhahiso e amehang ke ena:
- Boitokisetso ba bokaholimo: Lokisetsa bokaholimo ba karoloana bakeng sa sebopeho sa lera, ho tšoaea le ho etsa metallization. Sebelisa lisebelisoa tse ke keng tsa senya laminate e boreleli, joalo ka sodium etchants kapa plasma gase recycling holim'a PTFE.
- Ho roala Koporo: Ka hloko poleiti ea koporo ea Teflon, thepa ea ceramic e nang le thepa e phahameng ea dielectric. Sebelisa koporo e pentiloeng e nang le matla a phahameng a tsitsipano maboteng a lesoba ho fokotsa monyetla oa ho phahamisa liphaephe le ho petsoha ha meqomo ka lebaka la PTFE's high Z-axis coefficient ea katoloso ea mocheso.
- Tšebeliso ea Mask ea Solder: Sebelisa mask a solder nakong ea lihora tse 12 ka mor'a ho kenya thepa. Tlosa mongobo ofe kapa ofe o setseng ka ho baka PTFE laminates pele o sebelisa mask a solder.
- cheka: Sebelisa thepa e phahameng ea chip ho cheka li-substrates tsa PTFE tse koahetsoeng ka koporo, li-fibers tse felisang le mohatla oa PTFE. Nahana ka ho sebelisa li-laminate tse tletseng ka ceramic bakeng sa ho cheka habonolo.
- Ho sebetsana le ho boloka: Tšoara PTFE laminate ka hloko ho thibela ho taboha kapa ho phunya. Li boloke mochesong oa kamore, hole le khanya ea letsatsi, ho thibela oxidation ea bokaholimo le tšilafalo.
- Khalemelo: Ho fapana le lisebelisoa tse ling, li-substrates tsa Teflon ha li hloke oxide pretreatment. Laminate PTFE le lifilimi tsa koporo tlas'a khatello e phahameng ntle le lifilimi tsa bonding kapa pre-pegs. Ka linako tse ling, sebelisa lifilimi tsa bonding kapa prepregs tse nang le ntlha e tlaase haholo ea ho qhibiliha ho fokotsa mocheso oa ho sebetsa. Le ha li-laminate tsa PTFE-FR4 li loketse lits'ebetso tse ling, li hloka kalafo ea pele ea oxide.
Ka kakaretso, tlhahiso ea Teflon PCB e hloka lits'ebetso tse ikhethileng le tlhokomelo ho lintlha tse qaqileng ho netefatsa liboto tsa potoloho tsa boleng bo holimo.
fihlela qeto e
Ka bokhutšoanyane, li-PCB tsa PTFE li fana ka khanyetso e ikhethang ea mocheso le lik'hemik'hale, e leng se etsang hore e be tse loketseng bakeng sa lits'ebetso tsa indasteri, sefofane, bongaka le sesole. Li boloka ho ts'epahala maemong a thata 'me hangata li sebelisoa taolong ea ts'ebetso, lits'ebetso tsa radar le lisebelisoa tsa bongaka. Thepa e ikhethang ea PTFE, joalo ka tahlehelo e tlase ea dielectric le ho hanyetsa mongobo, li kenya letsoho ho lokeleng ha eona lits'ebetsong tsena. Le hoja PTFE e tla ka litšenyehelo tse phahameng ha e bapisoa le FR4, ts'ebetso ea eona maemong a feteletseng e lokafatsa letsete la lits'ebetso tsa bohlokoa.
Ha u khetha pakeng tsa PTFE le FR4 bakeng sa thepa ea boto ea potoloho, nahana ka maemo a ts'ebetso le tekanyetso. PTFE e phahameng ea mocheso le lik'hemik'hale tse hanyetsanang le lik'hemik'hale li etsa hore e be e loketseng bakeng sa lits'ebetso tse hlokang ts'ebetso e ka tšeptjoang libakeng tse thata, athe FR4 e ntse e le khetho e bolokang chelete e ngata bakeng sa lisebelisoa tse tloaelehileng. Khetho e lokela ho ipapisa le litlhoko tse khethehileng tsa kopo ea hau, ho netefatsa hore thepa e khethiloeng e ka mamella maemo a ts'ebetso le ho fana ka ts'ebetso e lakatsehang.
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