Tsika 2-layer PTFE PCB
Kutsanangurwa kweChigadzirwa:
| Base Material: | FR4 TG170 |
| PCB Ukobvu: | 1.8+/-10%mm |
| Layer Count: | 8L |
| Hukobvu hwemhangura: | 1/1/1/1/1/1/1/1/1 oz |
| Surface Treatment: | ENIG 2U” |
| Solder Mask: | Glossy green |
| Silkscreen: | Chena |
| Special Process | Vakavigwa & Bofu vias |
FAQs
PTFE is a synthetic thermoplastic fluoropolymer uye ndiyo yechipiri inonyanya kushandiswa PCB laminate zvinhu.Iyo inopa inowirirana dielectric zvivakwa pane yakakwirira coefficient yekuwedzera pane yakajairwa FR4.
PTFE lubricant inopa yakakwirira magetsi kuramba.Izvi zvinoita kuti ishandiswe kuti ishandiswe patambo dzemagetsi nemabhodhi edunhu.
PaRF neMicrowave frequencies, dielectric constant yestandard FR-4 Material (approx. 4.5) inowanzokwira zvakanyanya, zvichikonzera kurasikirwa kukuru kwechiratidzo panguva yekutapurirana muPCB.Neraki, PTFE zvinhu zvinozvirumbidza dielectric zvinogara zvichikosha zvakaderera se3.5 kana pazasi, zvichiita kuti ive yakanakira kukunda iyo yepamusoro-yekumhanya mipimo yeFR-4.
Mhinduro iri nyore ndeyekuti zvinhu zvakafanana: Teflon™ izita remhando yePTFE (Polytetrafluoroethylene) uye izita rechiratidzo rechiratidzo rinoshandiswa nekambani yeDu Pont nemakambani anotsigira (Kinetic iyo yakatanga kunyoresa trademark & Chemours iyo parizvino ine muridzi. izvozvo).
PTFE zvinhu zvinozvirumbidza dielectric zvinogara zvichikosha zvakaderera se3.5 kana pazasi, zvichiita kuti ive yakanakira kukunda iyo yepamusoro-yekumhanya mipimo yeFR-4.
Kazhinji kutaura, yakakwirira frequency inogona kutsanangurwa sefrequency pamusoro pe1GHz.Parizvino, PTFE zvinhu zvinoshandiswa zvakanyanya mukugadzirwa kwePCB yakakwira, inonzi zvakare Teflon, iyo frequency inowanzo pfuura 5GHz.Kunze kwezvo, FR4 kana PPO substrate inogona kushandiswa kune frequency yechigadzirwa pakati pe1GHz ~ 10GHz.Aya matatu akakwira frequency substrates ane pazasi misiyano:
Nezve mutengo welaminate weFR4, PPO neTeflon, FR4 ndiyo yakachipa, ukuwo Teflon ndiyo inodhura zvakanyanya.Panyaya yeDK, DF, kunyura kwemvura uye frequency chimiro, Teflon ndiyo yakanyanya kunaka.Kana zvigadzirwa zvekushandisa zvinoda frequency pamusoro pe10GHz, isu chete tinogona kusarudza Teflon PCB substrate kugadzira.Kuita kweTeflon kuri nani kupfuura mamwe ma substrates, Zvisineyi, iyo Teflon substrate ine dhizaini yemutengo wakakwira uye hombe inodzivirira kupisa.Kuvandudza PTFE kuoma uye kupisa-kudzivirira pfuma basa, nhamba huru yeSiO2 kana fiber girazi sechinhu chekuzadza.Kune rumwe rutivi, nekuda kwe molecule inertia ye PTFE zvinhu, izvo zvisiri nyore kusanganisa nemhangura foil, saka, inoda kuita yakakosha kurapa kwepamusoro padivi rekubatanidza.Nezvekusanganiswa kwepamusoro kurapwa, kazhinji shandisa kemikari etching paPTFE pamusoro kana plasma etching kuti iwedzere kukwasharara kwepamusoro kana kuwedzera imwe inonamira firimu pakati pePTFE nefoiri yemhangura, asi izvi zvinogona kukanganisa dielectric performance.
Zvigadzirwa zvikamu
-
Kurumidza kutendeuka PCB redunhu bhodhi re LED mwenje Nyowani e...
-
Tsika 4-layer rigid flex PCB
-
Prototype yakadhindwa redunhu mabhodhi RED solder mas...
-
Pcb bhodhi prototype hafu makomba ENIG pamusoro TG150
-
Multi redunhu mapuranga pakati TG150 8 akaturikidzana
-
Tsika 2-layer yakaoma PCB ine red solder mask
