Pūoko whakaahua-ira kotahikua pakaru i te aukati whai huatanga 80%
Whakaahua-kotahipūoko whakaahuae whakamahia whānuitia ana i roto i ngā mara o te whakaahua irahiko me te whakaahua irahiko kotahi nā ō rātou painga iti me te iti o te utu, engari e tūtaki ana rātou ki ngā arai hangarau e whai ake nei.
Ngā herenga hangarau o nāianei
1.CMOS me te SPAD hononga-angiangi: Ahakoa he nui te whakaurunga me te iti o te wiri wā, he angiangi te paparanga mimiti (he torutoru maikoromita), ā, he iti te PDE i te rohe tata-whero, me te 32% noa iho i te 850 nm.
2. SPAD Hononga-Matotoru: He paparanga mimiti kei roto, he tekau maikiromita te matotoru. Ko te PDE o ngā hua arumoni he tata ki te 70% i te 780 nm, engari he tino uaua te pakaru i te 80%.
3. Pānuihia ngā herenga ara iahiko: Me nui ake i te 30V te ngaohiko overbias o te SPAD hononga matotoru hei whakarite i te tūponotanga nui o te horonga. Ahakoa he 68V te ngaohiko tinei i ngā ara iahiko tuku iho, ka taea anake te whakanui ake i te PDE ki te 75.1%.
Otinga
Arotauhia te hanganga haurua-irahiko o te SPAD. Hoahoa whakamārama-muri: Ka pirau tere ngā irahiko taunga i roto i te silicon. Mā te hanganga whakamārama-muri ka mimiti te nuinga o ngā irahiko i roto i te paparanga mimiti, ā, ka werohia ngā irahiko kua puta ki te rohe horonga. Nā te mea he teitei ake te tere ionization o ngā irahiko i roto i te silicon i tērā o ngā kōhao, ka nui ake te tūponotanga o te horonga i te werohanga irahiko. Te whakakapi i te rohe horonga: Mā te whakamahi i te tukanga horapa tonu o te boron me te phosphorus, ka utua te whakapiri papaku hei whakawhāiti i te mara hiko ki te rohe hohonu me te iti ake o ngā hapa karaihe, ka whakaitihia te haruru pēnei i te DCR.
2. Ara iahiko pānui mahi-teitei. Te tinei kaha teitei 50V Whakawhiti āhua tere; Mahi maha-ara: Mā te whakakotahi i ngā tohu FPGA QUENCHING me te RESET, ka tutuki te whakawhiti ngāwari i waenga i te mahi kore utu (te whakaoho tohu), te kuaha (te puku GATE o waho), me ngā aratau ranu.
3. Te whakarite me te takai i te taputapu. Ka whakamahia te tukanga wafer SPAD, me te takai pūrerehua. Ka herea te SPAD ki te papa kawe AlN ka tāuta poutū ki runga i te pouaka whakamatao thermoelectric (TEC), ā, ka tutuki te whakahaere pāmahana mā te thermistor. Ka whakaritea tika ngā muka whatu maha-aratau ki te pokapū SPAD kia pai ai te hononga.
4. Te whakatikatika i te mahi. I mahia te whakatikatika mā te whakamahi i tētahi diode taiaho picosecond 785 nm (100 kHz) me tētahi kaitahuri mamati-wā (TDC, taumira 10 ps).
Whakarāpopototanga
Mā te arotau i te hanganga SPAD (hononga matotoru, whakamārama-muri, utu tāpiri) me te auaha i te ara iahiko tinei 50 V, i angitu te pana a tēnei rangahau i te PDE o te pūoko ira-whakaahua kotahi e hangai ana ki te silicon ki te teitei hou o te 84.4%. Ki te whakatauritea ki ngā hua arumoni, kua tino whakarei ake tōna mahi whānui, e whakarato ana i ngā otinga whai hua mō ngā tono pēnei i te whakawhitiwhiti kōrero irahiko, te rorohiko irahiko, me te whakaahua tairongo-teitei e hiahia ana ki te tino pai me te mahi ngāwari. Kua whakatakotohia e tēnei mahi he turanga pakari mō te whanaketanga tonu o te irahiko e hangai ana ki te silicon.pūoko kotahi-irahangarau.
Wā tuku: Oketopa-28-2025