# US 2022/0276352 A1 · Optical package for a lidar sensor system and lidar sensor system technical field > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0276352 A1 - Document ID: US20220276352A1 - Status: Published application - Kind: A1 - Application number: 17/742,448 - Filed: 2022-05-12 - Published: 2022-09-01 - Earliest claimed: 2019-03-08 - Assignees: OSRAM GmbH - Applicants: OSRAM GmbH - Inventors: Ricardo FERREIRA; Stefan HADRATH; Peter HOEHMANN; Herbert KAESTLE; Florian KOLB; Norbert MAGG; Jiye PARK; Tobias SCHMIDT; Martin SCHNARRENBERGER; Norbert HAAS; Helmut HORN; Bernhard SIESSEGGER; Guido ANGENENDT; Charles BRAQUET; Gerhard MAIERBACHER; Oliver NEITZKE; Sergey KHRUSHCHEV - Web page: https://patentgrep.com/patent/US20220276352A1 ## CPC - G01S 7/497: Means for monitoring or calibrating - G01S 17/894: Three-dimensional [3D] imaging with simultaneous measurement of time-of-flight at a two-dimensional [2D] array of receiver pixels, e.g. time-of-flight cameras or flash lidar - G01S 7/4815: {using multiple transmitters} - G01S 7/4816: {of receivers alone} - G01S 7/484: Transmitters - G01S 7/4863: Detector arrays, e.g. charge-transfer gates - G01S 7/4914: of detector arrays, e.g. charge-transfer gates - G01S 17/10: using transmission of interrupted, pulse-modulated waves (determination of distance by phase measurements G01S17/32) - G01S 17/36: with phase comparison between the received signal and the contemporaneously transmitted signal - G01S 17/74: Systems using reradiation of electromagnetic waves other than radio waves, e.g. IFF, i.e. identification of friend or foe - G01S 17/86: Combinations of lidar systems with systems other than lidar, radar or sonar, e.g. with direction finders - G01S 17/931: of land vehicles - H04N 25/773: comprising photon counting circuits, e.g. single photon detection [SPD] or single photon avalanche diodes [SPAD] - G01S 7/4808: {Evaluating distance, position or velocity data} - G01S 7/4817: {relating to scanning} - H10F 39/182: {Colour image sensors} - H10F 39/184: {Infrared image sensors} - H10F 39/191: {Photoconductor image sensors} - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION ## Abstract The present disclosure relates to various embodiments of an optical package for a LIDAR sensor system having a substrate including an array of a plurality of capacitors formed in the substrate, a plurality of switches formed in the substrate, where each switch is connected between at least one laser diode and at least one capacitor of the plurality of capacitors; and at least one laser diode being mounted in close proximity to the plurality of capacitors on the substrate in order to provide small parasitic inductances and capacitances. A processor is configured to control the plurality of switches to control a first current flow to charge the plurality of capacitors, wherein the processor is configured to control the plurality of switches to control a second current flow to drive the at least one laser diode with current discharged from at least one capacitor of the plurality of capacitors. ## Claims ### Claim 1 Optical package for a LIDAR Sensor System with a substrate including: an array of a plurality of capacitors formed in the substrate; and a plurality of switches formed in the substrate, where each switch is connected between at least one laser diode and at least one capacitor of the plurality of capacitors, the optical package further including: the at least one laser diode mounted in close proximity to the plurality of capacitors on the substrate; and a processor configured to control the plurality of switches to control a first current flow to charge the plurality of capacitors, and to control a second current flow to drive the at least one laser diode with a current discharged from at least one capacitor of the plurality of capacitors. ### Claim 2 (depends on 1) The optical package according to claim 1, characterized in that the plurality of capacitors and the plurality of switches are monolithically integrated in the substrate. ### Claim 3 (depends on 1) The optical package according to claim 1, characterized in that each switch of the plurality of switches is assigned to exactly one respective capacitor of the plurality of capacitors. ### Claim 4 (depends on 1) The optical package according to claim 1, characterized in that each switch of the plurality of switches includes a transistor. ### Claim 5 (depends on 4) The optical package according to claim 4, characterized in that at least one transistor of the plurality of transistors is a field effect transistor. ### Claim 6 (depends on 5) The optical package according to claim 5, characterized in that at least one field effect transistor of the plurality of transistors is a metal oxide semiconductor field effect transistor. ### Claim 7 (depends on 6) The optical package according to claim 6, characterized in that at least one metal oxide semiconductor field effect transistor of the plurality of transistors is a complementary metal oxide semiconductor field effect transistor. ### Claim 8 (depends on 1) The optical package according to claim 1, characterized in that the array of capacitors includes a number of capacitors in the range from about 400000 capacitors to about 600000 capacitors associated with the at least one laser diode. ### Claim 9 (depends on 1) The optical package according to claim 1, characterized in that at least one capacitor of the array of capacitors has a capacitance in the range from about 50 fF to about 200 fF. ### Claim 10 (depends on 1) The optical package according to claim 1, characterized in that the current flow to drive the at least one laser diode includes a current in the range from about 10 mA to about 100 A. ### Claim 11 (depends on 1) The optical package according to claim 1, characterized in that an electrical path between a capacitor and the at least one laser diode has an inductivity lower than 100 pH. ### Claim 12 (depends on 1) The optical package according to claim 1, characterized in that at least one capacitor of the array of capacitors is a deep trench capacitor. ### Claim 13 (depends on 1) The optical package according to claim 1, characterized in that at least one capacitor of the array of capacitors is a stacked capacitor. ### Claim 14 (depends on 1) The optical package according to claim 1, characterized in that the capacitors of the array of capacitors are arranged in rows and columns. ### Claim 15 (depends on 1) The optical package according to claim 1, characterized in that an electrically conductive common line is connecting at least some capacitors of the plurality of capacitors. ### Claim 16 (depends on 15) The optical package according to claim 15, characterized in that the optical package includes a power source electrically connected to the common line and configured to provide the power to charge the plurality of capacitors. ### Claim 17 (depends on 1) The optical package according to claim 1, characterized in that the optical package includes a printed circuit board, and the substrate may be mounted on the printed circuit board. ### Claim 18 (depends on 15) The optical package according to claim 15, characterized in that the optical package includes a printed circuit board, and the substrate may be mounted on the printed circuit board, wherein the printed circuit board may include an electrical contact electrically coupled to the common line of the substrate. ### Claim 19 (depends on 18) The optical package according to claim 18, characterized in that the electrical contact of the printed circuit board is wire bonded to the common line of the substrate. ### Claim 20 (depends on 15) The optical package according to claim 15, characterized in that the optical package includes a printed circuit board, and the substrate may be mounted on the printed circuit board, wherein a first terminal of the at least one laser diode may be electrically coupled to the common line, and a second terminal of the at least one laser diode may be electrically coupled to an electrical contact of the printed circuit board. ### Claim 21 (depends on 20) The optical package according to claim 20, characterized in that the electrical contact of the printed circuit board is wire bonded to the second terminal of the at least one laser diode. ### Claim 22 (depends on 1) The optical package according to claim 1, characterized in that the substrate includes or essentially consists of silicon. ### Claim 23 (depends on 1) The optical package according to claim 1, characterized in that the at least one laser diode laterally covers at least a portion of the plurality of capacitors. ### Claim 24 (depends on 1) The optical package according to claim 1, characterized in that the at least one laser diode includes an edge emitting laser diode. ### Claim 25 (depends on 1) The optical package according to claim 1, characterized in that the at least one laser diode includes a vertical cavity surface-emitting laser diode. ### Claim 26 (depends on 1) The optical package according to claim 1, characterized in that the processor is monolithically integrated in the substrate. ### Claim 27 (depends on 18) The optical package according to claim 18, characterized in that the processor is mounted on the printed circuit board. ### Claim 28 (depends on 18) The optical package according to claim 18, characterized in that the processor is configured to control the plurality of switches to discharge at least some capacitors of the plurality of capacitors to drive the at least one laser diode to emit a laser pulse of a predefined pulse shape. ### Claim 29 (depends on 28) The optical package according to claim 28, characterized in that the laser pulse has a pulse duration of about 10 ns. ### Claim 30 (depends on 28) The optical package according to claim 28, characterized in that the processor is configured to control the plurality of switches to discharge at least some capacitors of the plurality of capacitors to drive the at least one laser diode to emit a laser pulse dependent on a light emission scheme. ### Claim 31 (depends on 1) The optical package according to claim 1, characterized in that at least one capacitor of the array of capacitors are arranged directly underneath the at least one laser diode in order to provide small parasitic inductances and capacitances. ### Claim 32 (depends on 1) A LIDAR Sensor System including an optical package according to claim 1.