
probe card

automated integrated circuit testing loe probe card (saadhaaranamgaa dutt board anie pilustaaru) upayoginchabadutundi. idhi electronic test system mariyu semiconductor wafer madhya oka interfaces. 
upayoginchandi mariyu tayaaru cheyandi.
probe card ledhaa dutt board anedi printed circuit board (pcb), mariyu idhi integrated circuit mariyu test head madhya interfaces, idhi automatic test parikaraalaku (tine) (ledhaa "tester") jatacheyabadutundi. saadhaaranamgaa, probe kaardu yaantrikamgaa wafer testing proberku dock cheyabadutundi mariyu vidyut dwara tinedaaniki anusandhaaninchabadutundi. dheeni uddesyam emitante, pariksha vyavastha mariyu porapai unna circuitla madhya vidyut marganni andinchadam, tadwara pora sthaayilo circuitla pareeksha mariyu dhruvikarananu anumatistundi, saadhaaranamgaa avi mukkalu chesi, pyaak cheyabadataaniki mundu. idhi saadhaaranamgaa oka pcb mariyu konni rakaala sparsha muulakaalanu kaligi untundi, saadhaaranamgaa loha.
semiconductor tayaareedaaruku saadhaaranamgaa prati kotta parikaram wafer kosam mariyu parikaram kudinchadaaniki kotta probe card avasaram (tayaareedaaru daani kaaryaacharananu unchutuu parikaram yokka parimaanaanni tagginchinappudu) endukante probe card samarthavantamgaa oka custom connector, idhi icchina tester yokka saarvatrika namuunaanu teesukuntundi mariyu waferpy vidyut pyaadlaku connect cheyadaaniki sankethaalanu anuvadistundi. dynamic yaadruchchika-access memory (dram) mariyu flash memory (flash) parikaraala pareeksha kosam, eee pyaadlu saadhaaranamgaa aluminiumtho tayaaru cheyabadataayi mariyu prati vaipuku 40-90 gaa untaayi. itara parikaraalalo chadunaina pyaadlu ledhaa raagi, raagi mishrama misramaalato chesina ettaina gaddalu ledhaa stambhaalu ledhaa led-tinn, tinn-sylver mariyu itara aneka rakaala tankaalu undavacchu.
parikaram yokka pareeksha samayamlo probe card eee pyaadlu ledhaa gaddalaku manchi vidyut sambandhaanni kaligi undaali. parikaram yokka pareeksha puurtayinappudu, prober pareekshinchavalasina tadupari parikaraniki wafernu suuchika chestundi.
saadhaaranamgaa oka probe kaardunu wafer proberlo choppistaaru, dheenilo pareekshinchaalsina wafer yokka sthaanam probe card mariyu wafer madhya khachitamaina sambandhaanni nirdhaarinchadaaniki sardubaatu cheyabadutundi. probe card mariyu wafer load ayina tarvaata, proberloni camera probe kardupai aneka chitkaalanu mariyu waferpy aneka maarkulu ledhaa pyaadlanu opticalga gurtistundi, mariyu eee samacharanni upayoginchi idhi test (ditt) kinda parikaramloni pyaadlanu probe card parichayaalaku amarchutundi.
design mariyu rakalu.
probe kaardulanu vistrutamgaa suudi rakam, niluvu rakam mariyu mems (micro electro-mechanical system) rakamgaa vargeekaristaaru, ivi sparsha muulakaala aakaram mariyu roopaalanu batti untaayi. mems rakam prastutam andubaatulo unna atyanta adhunaatana saanketikata. atyanta adhunaatanamaina probe card prastutam oka touchdown thoo mottam 12 "wafer nuu pareekshinchagaladu.
probe kaardulu ledhaa dutt bordulu nirdishta chip yokka yaantrika mariyu vidyut avasaralu mariyu upayoginchaalsina nirdishta pareeksha parikaraalu rendintinee teerchadaaniki roopondinchabaddaayi. oka rakamaina dutt boardu silicon wafer yokka dainu avi kattirinchi, pyaak cheyabadataaniki mundu pareekshinchadaaniki upayoginchabadutundi, mariyu maroka rakanni pyaak cheyabadina aiseela pareeksha kosam upayogistaaru.
samarthatha karakalu.
probe card saamarthyam aneka kaarakaala dwara prabhaavitamavutundi. bahusha probe card saamarthyaanni prabhaavitam chese atyanta mukhyamaina amsam samaantaramgaa pareekshinchagala duts sankhya. netikee chaalaa waferlu ippatikee oka samayamlo oka parikaranni pareekshistunnaayi. oka wafer vadda eee parikaraalalo 1000 unte, oka parikaranni pareekshinchadaaniki avasaramaina samayam 10 sekanlu mariyu prober oka parikaram nundi maroka parikaraniki velladaaniki samayam 1 sekanu ayithe, appudu mottam wafernu pareekshinchadaaniki 1000 x 11 sekanlu = 11,000 sekanlu ledhaa sumaru 3 gantalu padutundi. ayithe, probe card mariyu tester 16 parikaraalanu samaantaramgaa (vidyut connectionla kante 16 retlu) pareekshinchagaligite, pareeksha samayam daadaapu sarigga 16 retlu (sumaru 11 nimishaalaku) taggutundi.
adhunaatana pareekshakudi vanaru merugudala (attre) anedi probe card dwara samaantaramgaa pareekshinchagala duts sankhyanu penchadaaniki oka saktivantamaina sadhanam (ledhaa oka touchdownloo probe card suudulu wafer duts thoo sambandhamlo untaayi). etre anedi kriyaaseela bhaagaalanu upayoginchi duts madhya tester vanarulanu panchukoovadaaniki anumatistundi, ivi tester vanarula nundi dutsnu anusandhaaninche mariyu disconnect chese saamarthyaanni kaligi untaayi. autrey lekunda, oke tester vanaru (power, disi ledhaa esi signal) saadhaaranamgaa neerugaa oka dutt kii matrame velutundi. ayithe probe card pisibilo aut-configure chesina rile (switchlu) lanu install cheyadam dwara, tester vanaru bahula duts loki vibhajinchavachhu ledhaa branch cheyavachu. udaaharanaku x4 bhaagaswaamya aakruteekaranalo, 1 power signal 4 rilelugaa ivvabadutundi, dheeni avutputlu varusaga 4 duts kuu veltaayi. appudu prati rilenu varusakramgaa aann mariyu off cheyadam dwara (dute current kolata pareeksha vishayamlo), tester adhe touchdown samayamlo (probernu oka parikaram nundi maroka parikaraniki taralinchakundaa) 4 dutslo pratidaanni pareekshinchavacchu. anduvalla 256 power signals matrame unna tester daani vanarulanu vistarinchinatlu ledhaa meruguparuchukunnatlu kanipistundi, tadwara oka touchdownloo 1024 dutsnu pareekshinchadaaniki veelu kalpistundi, probe cardlo amalu chesina x4 sharing schemelo 1024 onboard rilelaku dhanyavaadaalu. pareeksha samayam mariyu kharchu paramgaa autrey naatakeeya podupunu testundi, endukante idhi chip tayaareedaaru ledhaa test housenu ekkuva vanarulatho kuudina marinta adhunaatana testernu konugolu cheyalsina avasaram lekunda oka touchdownloo ekkuva dutsnu dhruveekarinchadaaniki anumatistundi.
kalushya samasyalu.
maroe pradhana amsam probe suudula konalapai perukupoye sidhilaalu. saadhaaranamgaa ivi tungston ledhaa tungston/renium mishrama lohaalu ledhaa pii. dii. kyuu. eah. zii vanti adhunaatana palladium aadhaarita misramaalato tayaaru cheyabadataayi. konni aadhunika probe kaardulu meams saanketika parignaanaala dwara tayaaru cheyabadina contact chitkaalanu kaligi untaayi.
probe tip material thoo sambandham lekunda, varusa touchdown eeventla phalitamgaa tips paie kalushyam erpadutundi (ikkada probe tips dye yokka baand pyaadlatho bhouthikamgaa sambandham kaligi untaayi). sidhilaala perukupovadam anedi sparsha nirodhakata yokka klishtamaina kolatapai pratikuula prabhavanni chooputundi. upayoginchina probe kaardunu aamodayogyamaina contact resistance kuu tirigi ivvadaaniki, probe chitkaalu machalenivigaa undaali. kalushyanni empikagaa tolaginchadam dwara chitkaalanu tirigi pondadaaniki enn. doubleu. aarr. shaili laejarnu upayoginchi off linelo shubhraparachavachhu. pareeksha samayamlo online subhraparachadam dwara pareeksha phalitaalanu pora lopala ledhaa pora lopala optimize cheyavachu.

