Izinto ze-PCB ze-Isola Astra MT77 ze-77GHz Radar

Ezweni elishintsha ngokushesha le-Advanced Driver Assistance Systems (ADAS) kanye nokushayela okuzenzakalelayo, i-radar engu-77GHz millimeter-wave (mmWave) iyinzwa eqondile yokulawula ukuhamba ngesikebhe okuguquguqukayo kanye nokugwema ukushayisana. Kulezi zikhathi ezingavamile, ama-laminate ajwayelekile e-FR-4 kanye nama-microwave avamile ahlushwa ukuwohloka kwesignali okubi kakhulu.

Onjiniyela badinga i-substrate enezici zokulahlekelwa okuphansi kakhulu, ukuzinza kwesigaba okungavamile, kanye nokuqina kwe-thermomechanical yezinga lezimoto. Faka i-Isola Astra MT77.

While designing an ADAS module in simulation software is straightforward, transitioning that design to the factory floor requires deep manufacturing expertise. Working with a specialized China I-Isola Astra MT77 PCB manufacturer is critical because standard copper preparation methods will literally destroy a 77GHz signal. At I-Highleap Electronics, sithuthukise izinqubo zethu zamakhemikhali ukuze sibhekane ngqo nobuthakathaka obuhlukile be-mmWave laminates.

Cela Isilinganiso Sokwenziwa Kwe-Isola Astra MT77

Kungani iBhodi yeRadar ye-Astra MT77 77GHz Ilawula i-ADAS

I-radar yezimoto isebenza ngaphandle, ibeka izinto zikagesi ebusika obubandayo, ehlobo elishisayo, kanye nokushisa okukhulu kwenjini. I-antenna array ye-radar incike ekuqhathaniseni isigaba okunembile ukuze kunqunywe ibanga kanye nesivinini sezimoto ezizungezile.

Ibhodi le-radar le-Astra MT77 77GHz lixazulula ukungazinzi kwemvelo ngokunikeza izinzuzo ezintathu eziyinhloko:

• Ushintsho Lwesigaba Esiseduze No-Zero: I-Thermal Coefficient ka-Dk (TCDk) ezinzile ngokumangalisayo. Kusukela -40 ° C kuya ku-140 ° C, i-Dk (3.00) ihlala icishe ibe yithafa, isusa “ukugoba” kwemisebe ye-radar.
• Ukuqina Okuphezulu Kokushisa: Ngokungafani nezinto ze-PTFE ezithambile, le resin ye-thermoset ethuthukisiwe inezinga lokushisa lokuguquka kwengilazi (Tg) ka-200°C.
• Ukuthembeka Komshini: Ibhodi lesifunda eliphrintiwe le-Isola MT77 ngeke lithambe, lihlukanise, noma lihlupheke ngokuqhekeka kwemigodi egqitshwe nge-plated through-hole (PTH) ngesikhathi sokuhlanganiswa kwezimoto ezingenalo i-lead noma ukuchayeka ekushiseni isikhathi eside.

Ukucwila Okujulile: I-Paradox Yomphumela Wesikhumba Ekwenziweni Kwe-PCB Ye-Radar

Nakuba i-Astra MT77 idunyiswa ngokuthi “ingacutshungulwa yi-FR-4,” lokhu kuyindlela elula kakhulu. Ingacindezelwa njenge-FR-4, kodwa uma ifektri ye-PCB elahlekelwe yi-Isola Astra MT77 engenalwazi iphatha ukulandelela kwethusi njenge-FR-4, ibhodi lizohluleka ukuqinisekiswa kwe-RF.

I-Bottleneck engu-77GHz: Ukujula Kwesikhumba vs. Ukujiya Kwethusi

• I-Fiziksi (Umphumela Wesikhumba): Ku-77 GHz, ugesi oshintshanayo usunduzelwa endaweni engaphandle kakhulu yomkhondo. Ukujula kwesikhumba akujulile kakhulu—kuphela 0.23 amagciwane. Isignali yonke yeradar ihamba ngaleli layer elincane kakhulu.
• Indida Yokukhiqiza: Ngokwejwayelekile ukwenziwa kwebhodi elingenalutho elinezingqimba eziningi, amafektri asebenzisa i-micro-etch ethi “Brown Oxide” ukuze aqoqe ngamabomu ithusi. Lokhu kudala “amazinyo” ukuze i-prepreg resin ibambe, okuvimbela ukuhlukana.
• Imodi Yokwehluleka: Uma usika ithusi elibushelelezi le-VLP (Very Low Profile) ebhodini le-77GHz, ubulukhuni budlula kalula ama-micron angu-0.23. Isignali ye-mmWave ibanjwa igxuma ngaphakathi kwala mazinyo aqinile, okubangela ukulahlekelwa okuyingozi kokufakwa.

Isixazululo se-Highleap Engineering

Ukuze siphumelele ekwenzeni i-radar PCB ye-Isola Astra MT77 ngokwezifiso, onjiniyela bethu be-CAM badlula ngokuphelele ukugoba okunamandla. Esikhundleni salokho, sisebenzisa abagqugquzeli bokunamathela abasezingeni eliphezulu be-silane . Le khemikhali ethile ibopha i-prepreg nethusi ezingeni lama-molecule ngaphandle kokulimaza ngokomzimba iphrofayili yobuso be-VLP ebushelelezi, ilondoloze ubuqotho obukhulu besiginali.

Ama-Stackups e-Hybrid: Ukwehlisa Intengo Yakho Yesibonelo se-Astra MT77 PCB

Imojula yesimanje yeradar ye-ADAS inamayunithi okucubungula amasignali edijithali anzima (i-DSP), ama-IC okuphatha amandla, kanye nama-interface ebhasi le-CAN eceleni kwe-antenna. Ukusebenzisa i-laminate ebiza kakhulu yama-millimeter-wave ebhodini lonke elinezingqimba ezingu-8 kuwukuchitha imali enkulu yesabelomali sakho sokuthenga.

Ukuze uthuthukise isilinganiso sakho sokukhiqiza i-Isola Astra MT77 PCB , ithimba lethu lobunjiniyela lihlala liklama ama-stackup ahlanganisiwe angalingani :

• Izendlalelo 1 no-2: Izinto ze-Isola Astra MT77 zokuphatha umzila we-microstrip obalulekile we-77GHz.
• Izendlalelo Zangaphakathi: I-FR-4 yezinga lezimoto, i-Tg ephezulu (njenge-Isola 185HR noma i-370HR) yamandla kanye ne-digital logic.

Ngenxa yokuthi i-Astra MT77 iyi-resin ye-thermoset (hhayi i-PTFE), ihlanganyela i-curing kinetics ehambisanayo ne-FR-4 ejwayelekile. Ngokusebenzisa izindlela zokupheka ze-thermal ramp ezikhethekile ezingafani, sicindezela leli bhodi elihlanganisiwe ngomjikelezo owodwa we-lamination. Lokhu kunciphisa ingozi yomphumela we-"potato-chip" we-warpage, kwehlisa kakhulu intengo yakho ye-prototype ye-Isola Astra MT77 PCB ngenkathi igcina ibhodi liphansi ngokuphelele.

Ukufeza i-SMT Engenamsebenzi ye-mmWave PCB yakho

Kwezingxenye ze-ADAS ezibalulekile ngokuphepha, ukulandeleka kanye nokushiswa kwe-solder okungenasici kuyimpoqo. Isikhala esincane kakhulu se-solder ngaphansi kwe-RF transceiver IC singabangela ukushisa okwedlulele kwendawo, kususe ngokuphelele imojuli ye-radar.

Njengomhlinzeki we-PCB yezimoto ze-Astra MT77 ozinikele, i-Highleap Electronics isusa izingozi ezihlobene nokuphathwa kwempahla kwabantu besithathu. Sishintsha i-PCB yakho ye-Isola Astra MT77 mmWave kalula kusuka emigqeni yethu yebhodi lesekethe eliphrintiwe ngesivinini esiphezulu iye ngqo emigqeni yethu yokuhlanganisa ye-SMT enembile.

Kungakhathaliseki ukuthi udinga i-prototyping esheshayo yenzwa yokuqapha indawo engaboni noma ukukhiqizwa kwevolumu yesikhathi eside, ithimba lethu lisebenzisa i-3D X-Ray (AXI) kanye ne-Automated Optical Inspection (AOI) ukuqinisekisa ukuthi ibhodi ngalinye lihlangabezana nezindinganiso zokusebenza eziqinile kakhulu zezimoto. Hlola izinketho zethu eziphelele zezinto ze-PCB laminate noma xhumana nonjiniyela bethu be-CAM namuhla ukuze ubuyekeze ukucushwa kwe-ADAS stackup yakho.