Patent SG-11201906657Q-A (SG)
Title: Systems and methods for modulated image capture
Inventor: POIKONEN JONNE
IPC: H01L27/146
Filed: 2018-03-16
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 27 September 2018 (27.09.2018) WIP0 I PCT omit IIl °nolo Ho 11011111° 1 ow (10) International Publication Number WO 2018/172610 Al (51) International Patent Classification: GO1S 7/486 (2006.01) HO1L 27/146 (2006.01) (21) International Application Number: PCT/FI2018/050195 (22) International Filing Date: 16 March 2018 (16.03.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 20170044 19 March 2017 (19.03.2017) FI (71) Applicant: KOVILTA OY [MI]; Piispanristintie 1, 20760 Piispanristi (FI). (72) Inventors: POIKONEN, Jonne; Kukkarokiventie 2, 21530 Paimio (FI). PAASIO, Ari; Hollanterintie 6 B, 20660 Littoinen (FI). LAIHO, Mika; Kavaljeerintie 31, 01520 Vantaa (FI). (74) Agent: MOOSEDOG OY; Rykmentintie 2B, 20810 Turku (FI). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). Published: — with international search report (Art. 21(3)) (54) Title: SYSTEMS AND METHODS FOR MODULATED IMAGE CAPTURE W O 20 18/ 17 26 10 Al (57) : Disclosed is a pixel element comprising a semiconduc- tor substrate, a primary charge-collection node, a peripheral node, a modulating node, a circuitry and a backside conductive layer. The semi- conductor substrate is configured to convert a flux of photons to first and second conductivity- type mobile charges. The peripheral node at least partially surrounds the primary charge-collection node, which at least partially surrounds the modulating node. The circuitry is used to connect and disconnect a reset voltage to/from the primary charge-col- lection node, provide a peripheral node voltage to the peripheral node, and measure an amount of the first conductivity-type mobile charges collected by the primary charge- collection node. The modulating node is electrically connected to a modulating voltage source, which is inde- pendent of the peripheral node voltage. The backside conductive lay- er is configured to collect and conduct the second conductivity-type mobile charges, and configured to be electrically connected to a bias voltage.