Ibhodi le-ATE Interface: Idizayini Ebalulekile Nokucatshangwa Kwezokukhiqiza

Isingeniso

Izinhlelo zemishini yokuhlola ezenzakalelayo zidinga umzila wesignali oqondile kanye nokuxhumeka okuthembekile ukuze kwenziwe ukuhlolwa kwe-semiconductor okunembile. Ubunzima bendlela yesignali ezindaweni zesimanje ze-ATE budinga izixazululo ezikhethekile zesikhombimsebenzisi ezigcina ubuqotho besignali ngenkathi zinikeza ukuzinza kwemishini. Ibhodi Yesikhombimsebenzisi ye-ATE isebenza njengebhuloho elibalulekile phakathi kohlelo lwe-ATE kanye nebhodi lokulayisha, iqinisekisa ukuguquka kwesignali okuthembekile kanye nokuhambisana kwemishini ngesikhathi sokuhlolwa kwe-semiconductor.

Ibekwe phakathi kohlaka oluyinhloko lwe-ATE kanye nebhodi lokulayisha, isebenzisa imisebenzi emithathu eyinhloko: umzila wesignali nokuba nesimo, ukuzivumelanisa nomshini phakathi kwamazinga okusebenzelana ahlukene, nokuvikelwa kukagesi kukho kokubili umhloli nedivayisi engaphansi kokuhlolwa. Ngokungafani namabhodi esekethe aphrintiwe ajwayelekile, le ngxenye kufanele ihlangabezane nezidingo eziqinile zokulawula i-impedance, ukuqina komjikelezo wokufaka, nokunemba kobukhulu ukuze kugcinwe ukunemba kokuhlolwa ezinkulungwaneni zemijikelezo yokulinganisa.

Iqhaza elisebenzayo lebhodi le-ATE Interface

Ibhodi lesixhumi esibonakalayo se-ATE liphethe indawo yoshintsho ebalulekile lapho amasiginali wesistimu yokuhlola aguqulela khona ukusuka kufomethi yesixhumi somhloli esiya esakhiweni esiqondene nedivayisi yebhodi lokulayisha. Le ngxenye yenza umzila wesignali eziteshini eziningi, ngokuvamile iphatha amakhulu noma izinkulungwane zamaphoyinti okuhlola angawodwana kanyekanye.

Iketango lesignali lilandela indlela echaziwe: Izixhumi ze-ATE mainframe zidlulisela amasignali ebhodini lesixhumi esibonakalayo, elizihambisa ngemikhondo ethuthukisiwe ukuya ezindaweni zokuxhuma zebhodi lomthwalo, ekugcineni zifinyelele idivayisi ngaphansi kokuhlolwa. Ibhodi lisebenzisa ukuncishiswa nokuhlunga okulawulwayo ukuze kulungiswe amasignali ngokuvumelana nezidingo zokuhlola, ukuvimbela umsindo ongadingeki ukuthi ungathinteki ukunemba kokulinganisa.

Ukuphathwa Kwesiteshi Sesiginali

Isibopho esiyinhloko sebhodi lesixhumi esibonakalayo sihilela ukuphatha iziteshi zesignali phakathi koxhumano lwebhodi lokulayisha ngenkathi kugcinwa ikhwalithi yesignali. Isiteshi ngasinye sidinga ukufaniswa kokuphazamiseka komuntu ngamunye kanye nokulawula ubude ukuze kugcinwe ubudlelwano besikhathi kulo lonke ibhasi lokuhlola. Amasignali edijithali anemvamisa ephezulu kanye nezilinganiso ezinembayo ze-analogi zidinga amasu ahlukene omzila ukuze kunqandwe ukungqubuzana nokuphazamiseka.

Ukusabalalisa Amandla Nokugawula

Ukusatshalaliswa kwamandla kanye nokuphathwa kwendiza yaphansi kwenzeka ngezindiza eziklanywe ngokucophelela ezinciphisa ukwehla kwamandla kagesi kanye nokugxuma komhlaba phakathi nemicimbi yokushintsha ngesivinini esikhulu. Isakhiwo sebhodi lesixhumi esibonakalayo se-ATE ngokuvamile sihlanganisa amandla azinikele kanye nezindlela ezibuyayo zeqembu ngalinye lesiginali, ukuqinisekisa izindiza eziyisithenjwa ezihlanzekile kuyo yonke indlela yesiginali.

I-System Interface Protection

Amasekhethi okuvikela akhelwe ngaphakathi avikela okokusebenza ezibizayo ze-ATE ekulimaleni okungaba khona phakathi nokwehluleka kwebhodi lokulayisha noma ukufakwa kwedivayisi okungalungile. Umkhawulo wamanje, i-voltage clamping, kanye namadivayisi okuvikela e-ESD ahlanganisa ekwakhiweni kwebhodi lesixhumi esibonakalayo ngaphandle kokuphazamisa umkhawulokudonsa wesiginali. Isixhumi esibonakalayo semishini sinikeza ukuqondana komzimba nokuzinza kokuthintana nogesi ngamasistimu okuxhunywa ngomshini onembile amelana nemijikelezo yokufaka nokukhipha ephindaphindiwe.

Ukucatshangelwa kwe-ATE Interface Board Design

Ukuthuthukisa Indlela Yesiginali

Ubuqotho besignali buqala ngezinqumo zokulandela umkhondo ezinciphisa ubude bakagesi ngenkathi kugcinwa ukuvinjelwa okulawulwayo kuyo yonke indlela. Izakhi zedizayini ezibalulekile zihlanganisa:

• Umzila ohambisanayo - Amabhangqa ahlukene agcina ukuhlangana okuqinile kanye nesikhala esihambisanayo ukuze kulondolozwe ikhwalithi yesiginali

• Ngokuncishiswa - Ngayinye i-via yethula ukungaqhubeki kwe-impedance kanye nomthamo owengeziwe ezindleleni ezibalulekile

• Ukulawula i-Crosstalk - Isikhala esanele sokulandelela, ama-trace trace ane-grounding vias, kanye nokwabiwa kwezingqimba zamasu kuvimbela ukuphazamiseka

• Ukuqhubeka kwendlela yokubuyela emuva - Ukuphathwa kwendiza ngokucophelela nangokuthunga kugcina ubuqotho besiginali eduze kokushintsha kwesendlalelo

Okubalulekile kanye Nokukhethwa Kwesitaki

Ukukhethwa kwezinto kuthinta ngqo ukusebenza kwesignali ebhodini le-interface le-ATE. Izisekelo ze-Low-Dk kanye ne-low-Df ezifana ne -laminate ekhethekile yokulahlekelwa okuphansi noma i-Panasonic Megtron 6 zinikeza izici eziphezulu zemvamisa ephezulu uma kuqhathaniswa ne-FR-4 ejwayelekile. Ubukhulu be-dielectric phakathi kwezingqimba zesignali kanye nezindiza zokubhekisela bunquma i-impedance ephawulekayo, edinga ukulawulwa okuqondile ngesikhathi sokukhiqiza ukuze kugcinwe amanani okuhlosiwe ngaphakathi kokubekezelelana okuqinile.

Izitaki zezendlalelo eziningi ngokuvamile zisukela kweziyisishiyagalombili kuya kwezingamashumi amabili kuye ngokuminyana kwesiteshi nobunkimbinkimbi besignali. Ibhodi kufanele futhi lihlangabezane nokucaciswa kokucaba kokucaba, okuvamise ukudinga izinto ezine-coefficient ephansi yokunwetshwa kokushisa ukuze kugcinwe ukuzinza kwe-dimensional kukho konke ukuhlukahluka kwezinga lokushisa ngesikhathi sokuhlolwa.

I-Mechanical Interface kanye ne-Modularity

Ukukhethwa nokubekwa kwesixhumi kufanele kuhambisane ngokunembile namazinga esistimu ye-ATE, kungakhathaliseki ukuthi i-Teradyne UltraFLEX, i-Advantest V93000, noma ezinye izinkundla zokuhlola. Inkundla ngayinye idinga ukuxhumana okuqondile okunokubekezelelwa kokuma okuqondile. Izimiso zedizayini eziyimojuli zivumela amabhodi okusebenzelana alungiselwe izinhlobo zamabhodi okulayisha ahlukene kuyilapho kugcinwa uxhumano oluvamile kuhlaka oluyinhloko lwe-ATE.

Izimbobo ezikhwezwayo, ukucaciswa konqenqema, nobukhulu bohlaka lwebhodi kulandela imidwebo yemishini eqondene nomhloli ukuze kuqinisekiswe ukudotshwa okufanele nokuqondanisa. Izimbobo zamathuluzi kanye namamaki e-fiducial anika amandla ukuhlanganisa okunembile futhi anikeze amaphuzu okubhekisela kumasistimu okuhlola okuzenzakalelayo aqinisekisa ukunemba kokubekwa kwesixhumi.

Izinto Zokukhiqiza Nezokwethenjwa zamabhodi e-ATE Interface

Ukunemba kokukhiqiza kwebhodi lesixhumi esibonakalayo se-ATE kudlula izindinganiso ezijwayelekile ze-PCB ngenxa yemvelo ebalulekile yoxhumo lomhloli kanye nezindleko eziphezulu zokuphelelwa yisikhathi kwesistimu yokuhlola. Ngokungafani nama-PCB ajwayelekile, i-ATE Interface Board idinga ukunemba okuphezulu nokungaguquguquki ukuze kuqinisekiswe ukuxhumana komhloli okuzinzile.

Izidingo zokunemba kokwenziwa

Imininingwane eyinhloko yokukhiqiza ihlanganisa:

• Ukunemba kokubekwa kwephedi - ± 0.001 intshi (25 μm) ukubekezelelana kuqinisekisa ukuhlangana okuthembekile kwesixhumi nezinkulungwane zamaphoyinti okuxhumana
• Ukubhaliswa kwesendlalelo - Ukubekezelelana okuqinile kugcinwa ngokuthembeka nokulawulwa kwe-impedance ngokusebenzisa isitaki sebhodi
• Izimpumputhe futhi wangcwatshwa vias - Izinqubo ze-laser drilling kanye ne-plating ezinembile zigcina ukuxhumana kukagesi ngaphandle kokunqanyulwa kwe-impedance
• Ukukhetha kokuqeda ubuso - I-ENIG, i-hard gold plating, noma i-plating yegolide ekhethiwe ngokusekelwe ezidingweni zomjikelezo wokufaka

Ukwethembeka kanye nokuhlolwa

Ukuhlolwa kokuzinza kwe-thermal kuqinisekisa ukuthi ibhodi ligcina ukucaciswa kokucaba kulo lonke ibanga lezinga lokushisa lokusebenza, kuvimbele ukungahambi kahle kwesixhumi ngesikhathi sokuhamba ngebhayisikili. Izilinganiso zokumelana nokuxhumana phakathi nokuhlolwa kokufaneleka ziqinisekisa ukuthi zonke izindlela zesignali zihlangabezana nezicaciso zokumelana nobukhulu ngisho nangemva kokulingiswa kwemijikelezo yokuphila konke.

ATE Interface Board vs Ibhodi Lomthwalo: Umehluko Obalulekile

Ibhodi le-interface le-ATE kanye nebhodi lokulayisha kusebenza imisebenzi ehambisanayo kodwa ehlukile ngaphakathi kokwakhiwa kwesistimu yokuhlola. Ibhodi le-interface lixhuma ngqo ku-mainframe ye-ATE futhi ligxile ekushintsheni kwesignali, ukuhambisana kwesistimu, kanye nokuvikelwa kwe-mainframe. Ibhodi lokulayisha lixhuma kudivayisi evivinywayo futhi ligcizelela ukusatshalaliswa kwesignali ethile yedivayisi, ukulandelana kwamandla, kanye nokufinyelela iphuzu lokulinganisa.

Izithiyo zokuklama zihluka kakhulu phakathi kwamabhodi amabili. Ibhodi lesixhumi esibonakalayo kufanele livumelane nezindinganiso ezigxilile zemishini ezichazwe umkhiqizi we-ATE, ligcine ukuthinta okungashintshi kuzo zonke izinhlobo zezixhumi ezijwayelekile, futhi liphile ezinkulungwaneni zemijikelezo yokufaka. Idizayini yebhodi lokulayisha ivumelana nephakheji yedivayisi ngayinye ehlukile, isebenzisa amasekhethi okuhlola edivayisi ethile, futhi ngokuvamile inikezela ngomkhiqizo owodwa noma umndeni wedivayisi.

Izibalo zezendlalelo ngokuvamile zifinyelela amanani aphezulu kumabhodi okuxhumana ngenxa yokuminyana kwamashaneli omzila asuka kuzixhumi zozimele omkhulu, kuyilapho amabhodi okulayisha angase ahlanganise izingxenye ezishunyekiwe ezengeziwe zemisebenzi ethile yedivayisi. Izikhathi zokuhola zokukhiqiza ziyahlukahluka futhi, ngamabhodi esixhumi esibonakalayo avame ukugcinwa njengempahla yezingxenyekazi ezivamile ze-ATE, kuyilapho amabhodi okulayisha enziwa ngokwezifiso ngezinhlelo ezithile zokuhlola.

Izibonelo zohlelo lokusebenza ku-ATE Systems

I-Advantest V93000 Platform

Amasistimu e-Advantest V93000 asebenzisa izixhumi zeblade ezixinene kakhulu ezidinga amabhodi esixhumi esibonakalayo anokuqondanisa okunembile kwemishini namadizayini anesibalo esiphezulu ukuze amukele izinkulungwane zeziteshi zokuhlola. Lawa mabhodi ngokuvamile asebenzisa izindinganiso zokuvimba ezihlukile ze-50-ohm single-end noma 100-ohm kuwo wonke ama-gigahertz amaningi omkhawulokudonsa.

I-Teradyne UltraFLEX Platform

Amapulatifomu e-Teradyne UltraFLEX asebenzisa ubuchwepheshe bokuxhuma obuhlukene kanye nezinhlelo zokumisa imishini, okudinga imiklamo yebhodi yesixhumi esibonakalayo se-ATE ehambisana ne-pinout yabo ethile kanye nokucaciswa komshini. Amasistimu e-ATE angokwezifiso nezinkundla zokuhlola ezindala angase adinge amabhodi okusebenzelana aklanyelwe ukucaciswa kwefa kuyilapho ehlanganisa izinqubo zesimanje zesignali yobuqotho.

Inqubo Yokuqinisekisa Idizayini

Inqubo yokuklama nokuqinisekisa yamabhodi esixhumi esibonakalayo e-ATE ihlanganisa ukulingisa kazibuthe kagesi ukuze kuqinisekiswe ukusebenza kwesignali, ukuhlaziya ukucindezeleka komshini ukuze kuqinisekiswe ukwethembeka kwesixhumi, nokuhlolwa kukagesi ukuze kuqinisekiswe ukuthintana nokulahlekelwa kokufakwa kuzo zonke iziteshi.

Isiphetho

Ibhodi lesixhumi esibonakalayo se-ATE liqinisekisa ukusebenzelana okuzinzile, ukulahlekelwa okuphansi, nokuhambisanayo phakathi kwendawo yomhloli nendawo yedivayisi, okuthinta ngokuqondile ukunemba kokuhlolwa nokwethembeka kwesistimu. Ukuklama nokukhiqizwa okufanele kwalesi sici esibalulekile kudinga ubuchwepheshe kubuchwepheshe be-PCB obusezingeni eliphezulu, ukunemba komshini, kanye nesakhiwo sesistimu ye-ATE. Ubuqotho besignali, ukukhethwa kwempahla, nokulawulwa kwekhwalithi yokukhiqiza kunquma ukuthi ibhodi lokusebenzelana liyahlangabezana yini nezidingo ezidingekayo zokuhlolwa kwe-semiconductor yesimanje.

I-Highleap Electronics ihlinzeka ngamabhodi esixhumi esibonakalayo enziwe ngokunemba enzelwe izinhlelo zokusebenza zokuhlola i-semiconductor ngala makhono alandelayo:

• Ukwakhiwa kwe-impedance elawulwayo - Ukwakheka kwe-stack-up okuthuthukisiwe kanye nokulawulwa kwenqubo kugcina amanani e-impedance aqondiwe kuzo zonke iziteshi zesignali

• Ukuqondanisa kahle imishini - Ukukhiqizwa kokubekezelelana okuqinile kuqinisekisa ukuhlangana okuthembekile kwesixhumi namapulatifomu e-ATE

• Ubuchwepheshe bezinto ezibonakalayo - Ukukhethwa kanye nokucutshungulwa kwezingxenye ezisetshenziswa kakhulu ukuze kusebenze kahle isignali

• Ukuqinisekiswa kwekhwalithi - Izinqubo zokuhlola eziphelele ziqinisekisa imininingwane kagesi neyemishini ngaphambi kokulethwa

Xhumana nethimba lethu lobunjiniyela ukuze uxoxe ngezidingo zakho zebhodi le-interface le-ATE futhi uhlole ukuthi ubuchwepheshe bethu bungakusekela kanjani ukuthuthukiswa kohlelo lwakho lokuhlola.