Isola Astra MT77 PCB Material ye77GHz Radar

Mumamiriro ezvinhu ari kuchinja nekukurumidza eAdvanced Driver Assistance Systems (ADAS) uye kutyaira kwega, radar ye77GHz millimeter-wave (mmWave) ndiyo sensor chaiyo yekutonga cruise control uye kudzivirira kudonha kwemotokari. Pama frequency aya akanyanya, standard FR-4 uye microwave laminates dzakajairika dzinotambura nekuora kwechiratidzo kwakakomba.

Mainjiniya vanoda substrate ine hunhu hwekurasikirwa kwakanyanya, kugadzikana kwechikamu chinoshamisa, uye kusimba kwemota muchimiro chethermomechanical. Pinda muIsola Astra MT77.

Kunyange hazvo kugadzira ADAS module musoftware yekufananidza kuri nyore, kuchinja dhizaini iyoyo kuenda pasi pefekitori kunoda hunyanzvi hwakadzama hwekugadzira. Kushanda neChina Isola Astra MT77 PCB mugadziri wePCB kwakakosha nekuti nzira dzekugadzira mhangura dzinoparadza chiratidzo che77GHz. KuHighleap Electronics , takagadzirisa maitiro edu emakemikari kuti tigadzirise zvikanganiso zvakasiyana zve mmWave laminates.

Kumbira Mutengo weIsola Astra MT77 Fabrication

Nei Astra MT77 77GHz Radar Board Ichitonga ADAS

Radar yemotokari inoshanda panze, ichiisa magetsi muchando chinotonhora, zhizha rinopisa, uye kupisa kwakanyanya kweinjini. Antenna array yeradar inoenderana nekuenzanisa kwakanyatsojeka kwechikamu kuti ione daro uye kumhanya kwemotokari dziri pedyo.

Bhodhi reradar reAstra MT77 77GHz rinogadzirisa kusagadzikana kwezvakatipoteredza nekupa mabhenefiti matatu makuru:

• Kuchinja kweDanho reZero: Chiyero cheThermal Coefficient cheDk (TCDk) chakasimba zvinoshamisa. Kubva -40 ° C kusvika + 140 ° C, Dr (3.00) inoramba yakati sandara, ichibvisa "kutsvedza" kwemwaranzi yeradar.
• Kusimba Kwekupisa Kwakanyanya: Kusiyana nezvinhu zvePTFE zvakapfava, iyi thermoset resin yepamusoro ine girazi rinoshanduka kupisa (Tg) ye 200°C.
• Mechanical Kuvimbika: Bhodhi redunhu rakadhindwa reIsola MT77 harizopfavi, harizoparadzi, kana kutambura nekutyoka kwePTH panguva yekubatanidza mota isina lead kana kupisa kwenguva refu.

Kunyura Zvakadzika: Paradox yeMhedzisiro Yeganda muRadar PCB Production

Kunyange zvazvo Astra MT77 ichizivikanwa nekuva "inogona kugadziriswa neFR-4," iyi inyaya yekurerutsa zvinhu zvakanyanya. Inogona kudzvanywa seFR-4, asi kana fekitori yePCB isina ruzivo ikashandisa Isola Astra MT77 isina kurasikirwa zvakanyanya ikaita kuti copper tracing iite seFR-4, bhodhi harizokwanisi kusimbiswa neRF.

Chidimbu che77GHz: Kudzika kweganda vs. Kuoma kwemhangura

• Fizikisi (Mhedzisiro yeGanda): Pa77 GHz, simba rekuchinjana rinosundirwa pamusoro pekunze kwakanyanya kwetrace. Kudzika kweganda hakuna kudzika zvakanyanya—chete Makiromita makumi maviriChiratidzo chose cheradar chinofamba nepakati pechinhu ichi chisingaonekwe nemaziso.
• Dambudziko reKugadzira: Zviri muchimiro chakajairwa kugadzirwa kwebhodhi risina machira akawanda, mafekitori anoshandisa "Brown Oxide" micro-etch kuti akweshe mhangura nemaune. Izvi zvinogadzira "mazino" ekuti prepreg resin ibate, zvichidzivirira kucheka.
• The Failure Mode: Kana ukacheka mhangura yeVLP (Very Low Profile) yakapfava pabhodhi re77GHz, kuomarara kwayo kunopfuura ma microns 0.23. Chiratidzo chemmWave chinobatwa nekusvetuka-svetuka mukati memazino aya akaomarara, zvichikonzera kurasikirwa kukuru kwekuiswa.

Iyo Highleap Injiniya Solution

Kuti tibudirire kugadzira radar PCB yakagadzirwa neIsola Astra MT77, mainjiniya edu eCAM vanodzivisa micro-etching zvachose. Pane kudaro, tinoshandisa zvinhu zvepamusoro zvinosimudzira silane-based adhesion . Kemikari iyi chaiyo inobatanidza prepreg nemhangura padanho remamorekuru pasina kukanganisa chimiro cheVLP chakatsetseka, zvichichengetedza kusimba kwechiratidzo kwakanyanya.

MaHybrid Stackups: Kuderedza Mutengo Wako weAstra MT77 PCB Prototype

Imwe module yeradar yeADAS yemazuva ano ine mayuniti ekugadzirisa masaini edhijitari (DSP), maIC ekugadzirisa magetsi, uye maCAN bus interfaces pamwe chete neantenna. Kushandisa laminate inodhura ye millimeter-wave pabhodhi rese rema layer masere kutambisa bhajeti rako rekutenga.

Kuti tigadzirise mutengo wekugadzirwa kwePCB yako yeIsola Astra MT77 , timu yedu yeinjiniya inogara ichigadzira ma "stackups" asina kuenzana :

• Matanho 1 ne2: Isola Astra MT77 zvinhu zvinotakura nzira yakakosha ye 77GHz microstrip routing.
• Zvikamu zvemukati: Mota dzakagadzirwa neTg FR-4 yepamusoro (yakadai seIsola 185HR kana 370HR) dzinoshandisa simba uye logic yedhijitari.

Nekuti Astra MT77 i thermoset resin (kwete PTFE), ine hunyanzvi hwekugadzirisa hunoenderana ne FR-4 yakajairwa. Nekushandisa nzira dzakasiyana dzekubika dzisiri dzemhando yepamusoro, tinodzvanya bhodhi iri rehybrid muchikamu chimwe chete che lamination. Izvi zvinoderedza njodzi ye "mbatatisi-chip" warpage effect, zvichideredza zvakanyanya mutengo weIsola Astra MT77 PCB prototype ukuwo ichichengetedza bhodhi rakati sandara zvakakwana.

Kuwana SMT Isina Chinhu Yekushandisa yeMMWave PCB Yako

Kune zvikamu zveADAS zvakakosha pakuchengetedza, kutevedza kwazvinofanira kuitwa uye kusabatanidza zvisina kukanganisa. Chinhu chidiki diki chesolder chiri pasi peRF transceiver IC chinogona kukonzera kupisa kwakanyanya, zvichibvisa radar module zvachose.

Semutengesi wePCB wemotokari weAstra MT77 akazvipira, Highleap Electronics inobvisa njodzi dzinosanganisirwa nekutakura zvinhu kubva kune vamwe. Tinoshandura PCB yako yeIsola Astra MT77 mmWave zviri nyore kubva pamitsetse yedu yepamusoro yakadhindwa yecircuit board zvakananga kumitsara yedu yeSMT assembly.

Kunyangwe muchida kukurumidza kugadzira prototyping ye sensor yekutarisa nzvimbo isina chinhu kana kugadzira volume kwenguva refu, timu yedu inoshandisa 3D X-Ray (AXI) uye Automated Optical Inspection (AOI) kuti ive nechokwadi chekuti bhodhi rega rega rinosangana nezvinodiwa zvakanyanya zvekushanda kwemotokari. Ongororai sarudzo dzedu dzakazara dzePCB laminate kana kuti batai mainjiniya edu eCAM nhasi kuti muongorore magadzirirwo enyu eADAS stackup.