AbakwaSamsung bethule inzwa entsha yesithombe engu-200MPx emasontweni ambalwa edlule ISOCELL HP3. Lena inzwa enosayizi wephikseli omncane kunawo wonke owake waba khona. Manje, isiqhwaga sezobuchwepheshe sase-Korea sikhulume ngokuthuthuka kwaso ngonjiniyela abavela kusigaba se-System LSI kanye ne-Semiconductor R&D Center.
Inzwa yesithombe (noma i-photosensor) iyisemiconductor yesistimu eguqula ukukhanya okungena kudivayisi ngelensi yekhamera kube amasignali edijithali. Izinzwa zesithombe zakhelwe kuyo yonke imikhiqizo ye-elekthronikhi enekhamera, njengamakhamera edijithali, amakhompyutha aphathekayo, izimoto kanye, vele, nama-smartphone. I-ISOCELL HP3, eyethulwe yi-Samsung ngoJuni, iyi-photosensor equkethe amaphikseli e-micron angu-200 million angu-0,56 (usayizi wamaphikiseli amancane kunawo wonke embonini) ngefomethi yokubona engu-1/1,4".
"Ngobukhulu obuncane be-pixel bomuntu ngamunye, ubukhulu bomzimba benzwa kanye nemodyuli bungancishiswa, okuvumela nobukhulu nobubanzi be-lens ukuba buncishiswe," kuchaza umthuthukisi uMyoungoh Ki ovela esigabeni se-Samsung's System LSI. "Lokhu kungaqeda izici ezithikameza ekwakhiweni kwedivayisi, njengekhamera evele ngaphandle, kanye nokunciphisa ukusetshenziswa kwamandla," wengeza.
Igalari yezithombe
Nakuba amaphikseli amancane evumela idivayisi ukuthi ibe mncane, ukhiye uwukugcina ikhwalithi yesithombe. I-ISOCELL HP3, ithuthukiswe kusetshenziswa ubuchwepheshe besimanje, enosayizi wamaphikseli amancane ngo-12% kune-Samsung's 200MPx photosensor yokuqala. ISOCELL HP1, inganciphisa indawo engaphezulu yekhamera kumakhalekhukhwini kuze kufike ku-20%. Ngaphandle kosayizi wamaphikseli amancane, i-ISOCELL HP3 ithuthukiswe kusetshenziswa ubuchwepheshe obukhulisa i-Full Well Capacity (FWC) futhi inciphise ukulahlekelwa ukuzwela. Usayizi wamaphikseli amancane ulungele ukudala amadivaysi amancane, amancane, kodwa angaholela ekukhanyeni okuncane okungena kudivayisi noma ukuphazamiseka phakathi kwamaphikseli angomakhelwane. Kodwa-ke, ngisho nalokhu, i-Samsung yakwazi ukubhekana nayo, futhi ngokusho kukaKi, kungenxa yamakhono okuphathelene nobuchwepheshe bomdondoshiya waseKorea.
Igalari yezithombe
AbakwaSamsung bakwazile ukwakha izindonga ezibonakalayo phakathi kwamaphikseli azacile najulile kusetshenziswa ubuchwepheshe be-Full Depth deep trench isolation (DTI), obuqinisekisa ukusebenza okuphezulu ngisho nakusayizi wama-microns angu-0,56. I-DTI idala ingxenye ehlukanisiwe phakathi kwamaphikseli esebenza njengodonga oluvikelayo ukuvimbela ukulahleka kokukhanya nokuthuthukisa ukusebenza kokubona. Unjiniyela u-Sungsoo Choi we-Samsung's Semiconductor R&D Center uqhathanisa ubuchwepheshe nokwakha umgoqo omncane phakathi kwamagumbi ahlukene esakhiweni. "Ngokwabantu abavamile, kuyafana nokuzama ukwakha udonga oluncane phakathi kwegumbi lakho negumbi elingumakhelwane ngaphandle kokuphazamisa izinga lokuvikela umsindo," echaza.
Ungaba nentshisekelo ku
Ubuchwepheshe beSuper Quad Phase Detection (QPD) buvumela wonke amaphikseli ayizigidi ezingu-200 ukuthi agxile ngokukhuphula ukuqina kwamaphikseli e-autofocus aye ku-100%. I-QPD inikeza umsebenzi we-autofocus osheshayo futhi onembe kakhudlwana ngokusebenzisa ilensi eyodwa ngaphezu kwamaphikseli amane, okuvumela ukulinganiswa kwawo wonke umehluko wesigaba kwesokunxele, kwesokudla, phezulu naphansi kwesihloko esithwetshulwayo. Akukhona nje kuphela ukuthi i-autofocus inembe kakhulu ebusuku, kodwa ukulungiswa okuphezulu kugcinwa ngisho noma isondeziwe. Ukubhekana nenkinga yekhwalithi yesithombe ephansi ezindaweni ezinokukhanya okuphansi, abakwaSamsung basebenzisa ubuchwepheshe bephikseli obusha. "Sisebenzise inguqulo ethuthukisiwe yobuchwepheshe bethu be-Tetra2pixel, obuhlanganisa amaphikseli amane noma ayishumi nesithupha ancikene ukuze asebenze njengephikseli eyodwa enkulu ezindaweni ezinokukhanya okuphansi," Kusho uChoi. Ubuchwepheshe be-pixel obuthuthukisiwe benza kube nokwenzeka ukuthwebula amavidiyo ngokulungiswa kwe-8K ku-30 fps naku-4K ku-120 fps ngaphandle kokulahlekelwa indawo yokubuka.
U-Ki no-Choi baphinde bathi bahlangabezane nezithiyo eziningi zobuchwepheshe ekuthuthukisweni kwe-photosensor entsha (ikakhulukazi ukusebenzisa ubuchwepheshe be-DTI, i-Samsung eyayisebenzisa okokuqala), kodwa ukuthi banqotshwa ngenxa yokubambisana kwamaqembu ahlukahlukene. Ngaphandle kwentuthuko enzima, umdondoshiya waseKorea wethule inzwa entsha ngaphansi konyaka ngemuva kokumemezela inzwa yayo yokuqala engu-200MPx. Iyiphi i-smartphone ezophuma kuyo okokuqala akukacaci okwamanje.
