Kugadzirwa kwePCB yeHigh Dr Rogers

Sezvo 5G telecommunications, aerospace telemetry, uye 77GHz automotive radar systems dzichida kuti circuit miniaturization iwedzere kushanda nesimba, mainjiniya ehardware anomanikidzwa kushandisa substrates dzine Dielectric Constants (Dk) yepamusoro. MuRF engineering, saizi yemuviri ye resonant circuit inoenderana ne square root ye substrate's DC. Zvisinei, kusarudza high-Dk composite kubva padatasheet ingori danho rekutanga. Dambudziko rechokwadi reinjiniya riri mukunzwisisa kuti zvinhu izvi zvepamusoro zvinofamba sei pasi pefekitori.

Ma substrates akasiyana-siyana ane mafrequency akaenzana—kunyangwe ane hunhu hwakafanana hwemagetsi—anoita zvakasiyana zvakanyanya panguva yekushandiswa kweCNC, kuburikidza nesimbi, uye multi-layer lamination. Semugadziri weRF printed circuit board, Highleap Electronics yakagadzira gwara iri rehunyanzvi kuti rikubatsire kufamba nesarudzo dzedu dzepamusoro dzePCB laminate . Nekunzwisisa hunhu hwakasiyana hwekugadzira hweRogers RO3000® series, RO4360G2™, uye TMM10i™, unogona kuve nechokwadi chekuti dhizaini yako inotevera ye microwave yakagadzikana uye inogadzirwa zvakanaka pasina kudhura kwakawanda kusingatarisirwi.

Kumbira Mutengo weRogers DFM & Fabrication

Nhevedzano yeRO3000: PTFE Workhorses yeKurasikirwa Kwakanyanya Kwakaderera

Rogers RO3000 series yakavakirwa paPolytetrafluoroethylene (PTFE) composite yakazara neceramic. PTFE inozivikanwa muindasitiri yema microwave nekuda kwekusashanda kwayo kwakaderera (Df), zvichireva kuti inoshandura simba remasaini rinenge zero kuita kupisa kunoraswa. Nekuchinja density ye ceramic filler, Rogers inopa sarudzo dzakasiyana dzeDk kune zvinodiwa zvishoma.

Kune ma radar ekudzivirira kudonha kwemotokari e77GHz uye magadzirirwo ema millimeter-wave uko kuchengetedza masaini kwakakosha, mainjiniya vanowanzo tsanangura Rogers RO3035. Dk yayo ye3.50 inopa nzira yakaringana, ichipa thermal coefficient yakaderera yeDk (TCDk) iyo inodzivirira radar beam "kutsvedza" panguva yemamiriro ekunze akaipisisa. Z-axis CTE yayo ye24 ppm/°C inoenderana zvakanyanya nemhangura, zvichiita kuti ive ne multilayer kuburikidza nekuvimbika.

Kana tsoka yemuviri ichida kudzvanywa zvakanyanya—semuma amplifiers emagetsi e sub-6 GHz kana ma GPS patch antennas—Rogers RO3006 inopa Drk ye6.15. Kune zvinodiwa zvakanyanya zve miniaturization, zvakaita se aerospace telemetry filters uye X-band satellite LNBs, Rogers RO3010 inosunda boundary neDk yakakura ye10.2.

RO4360G2: Kupfuura PTFE Bottleneck

Kuti agadzirise matambudziko ekugadzira ane chekuita neTeflon, Rogers akagadzira nzira yakasiyana zvachose yemakemikari. Rogers RO4360G2 inopa mabhenefiti akafanana neRO3006 (Dk 6.15), asi yakagadzirwa uchishandisa resin yegirazi yakasimbiswa nehydrocarbon ceramic thermoset.

Nekuti haisi PTFE, hainyungudike kana kusviba pamusoro pemukati memhangura panguva yekuboorwa kweCNC. Inogona kubviswa ganda uye kuputirwa uchishandisa nzira dzakajairwa dzeFR-4 permanganate chemistry. Iyi "FR-4 processability" inoderedza zvakanyanya nguva yekugadzira uye inoderedza mitengo yeprototype kana tichienzanisa ne microwave laminates dzechinyakare.

Uyezve, RO4360G2 ine hunyanzvi hwekugadzirisa hunoenderana neGlass Transition Temperatures (Tg) pamwe chete ne epoxy resins dzakajairwa. Izvi zvinoita kuti ive shasha isingapokane ye hybrid multi-layer stackups dzinodhura zvishoma. Highleap Electronics inoshandisa RO4360G2 pa outer layers (L1-L2) ye 5G RF routing, ukuwo ichishandisa High-Tg FR-4 inodhura zvishoma mukati me digital logic uye power distribution. Nekushandisa chaiyo, asymmetrical thermal ramp recipes panguva ye lamination press cycle, tinobudirira kugadzirisa zvinhu izvi zvakasiyana pasina kukonzera asymmetric warpage (mhedzisiro ye "potato-chip").

TMM10i: Kufanotaura kweIsotropic vs. Kugadzira Chokwadi

Mazhinji elaminate ane mafrequency akakwirira anoshandisa jira rakarukwa refiberglass kutsigira chimiro. Izvi zvinogadzira anisotropic effect, zvichireva kuti dielectric constant inosiyana zvishoma zvichienderana nekuti chiratidzo chinofamba here pamwe chete neX, Y, kana Z axis. Kune maumbirwo akaomarara e3D waveguide uye mafirita emukati anoshivirira, kusafanotaura uku kunoderedza mashandiro.

Rogers TMM10i inobvisa fiberglass zvachose. I thermoset resin ine tambo dzakawanda dzakabatana dzakazadzwa neceramic, ine 9.80 DK ine isotropic stability yakakwana. Inoita sechidimbu chakasimba che alumina ceramic. Kune dhizaini ye thermoset high-DK, TMM13i compact RF-board yekugadzira inopa processing case yakasiyana neyakagadzirwa nePTFE.

Zvisinei, chinhu ichi chinomiririra dambudziko guru rekugadzira michina. Kuwanda kwakanyanya kweceramic kuchaparadza tungsten carbide drill bits yakajairwa muzvibodzwa zvisingasviki zana. Kana fekitori ikaedza kusunda dull drill bit kuburikidza neTMM10i kuchengetedza mari yekushandisa, inokonzera kutsemuka kwemicroscopic (micro-cracking) pamadziro emuchina. Munguva yeSMT reflow, makemikari ari mukati meaya ma micro-cracks achafashaira uye achaputitsa copper plating kubva pamadziro emuchina. Kugadzirisa TMM10i kunoda kuti fekitori isimbise miganhu yakasimba yekurova drill, kuderedza spindle RPM, uye kushandisa diamond-cut router bits dzakagadzirwa kudzivirira brittle substrate kuti isatsemuke pamipendero yebhodhi.

Kuenzanisa kweMaster DFM: Basic Chemistry uye Zvinokonzera Mari

Kusarudza substrate ine high-Dk chiitiko chekuenzanisa zvinodiwa nemagetsi nekugadzira zvinhu. Tafura iri pazasi inoratidza musiyano mukuru unokonzera kuoma kwekugadzirwa kwezvinhu uye mutengo.

Kugadzira Turnkey yeHigh-Frequency PCBs

Bhodhi reDk 10.2 rinogona kutevedzera zvakanaka muHFSS, asi kana cheni yako yekugovera isingakwanise kubata plasma desmear chaiyo, ultra-narrow trace etching, uye void-free SMT soldering, chigadzirwa chaicho chichakundikana mumunda.

Nekuti PTFE yakapfava uye thermosets dzeceramic dzakapfava dzinogona kukuvara zvakanyanya, kufambisa mapuranga aya asina chinhu pakati pemugadziri neimba yekuungana yakasiyana kunowedzera njodzi yekusvibiswa, kuchinjika kweimpedance, uye kupwanyika kwemucheto. KuHighleap Electronics, tinobvisa njodzi iyi nekushanda semugadziri wechinhu chimwe chete.

Tinoshandura purojekiti yenyu zviri nyore kubva kumitsetse yedu yepamusoro yekugadzira bhodhi repamusoro-soro kuenda kunzvimbo dzedu dzeSMT dzakarongeka. Tichishandisa Laser Direct Imaging (LDI) yekuona upamhi hwetrace hwakakwana uye 3D X-Ray (AXI) yekutarisa thermal grounding isina void pasi pezvikamu zveRF zvine simba guru, tinova nechokwadi chekuti Massive MIMO kana radar modules dzenyu dzinoshanda sezvakarongwa. Bata timu yedu yeinjiniya nhasi kuti uongorore mafaira enyu eGerber uye stackup configuration.