Patents by Inventor Shashank Sharma
Shashank Sharma has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Publication number: 20240195950Abstract: The present disclosure relates to contaminant detection systems and related optical systems and methods. An example contaminant detection system includes an optical coupler configured to couple light into and/or out of an optical element. The contaminant detection system also includes a plurality of light-emitter devices configured to emit emission light toward the optical coupler. The contaminant detection system additionally includes a plurality of detector devices configured to detect at least a portion of the emission light by way of the optical element and the optical coupler. The plurality of detector devices is also configured to provide detector signals indicative of a presence of a contaminant on the optical element.Type: ApplicationFiled: February 19, 2024Publication date: June 13, 2024Inventors: Benjamin Frevert, Shashank Sharma
-
Publication number: 20240184080Abstract: Some embodiments include a camera voice coil motor (VCM) actuator configured to shift a lens and/or an image sensor along multiple axes. The VCM actuator may include a bottom flexure and a top flexure that connect one or more dynamic members to one or more static members. The VCM actuator may include stationary magnets and coils held by dynamic members. In some cases, the VCM actuator may be configured to move the image sensor along an optical axis, to move the image sensor in directions orthogonal to the optical axis, and/or to tilt the image sensor relative to the orthogonal axis. In some examples, the VCM actuator may be configured to move the image sensor in directions orthogonal to the optical axis, to move the lens along the optical axis, and/or to tilt the lens relative to the optical axis.Type: ApplicationFiled: February 9, 2024Publication date: June 6, 2024Applicant: Apple Inc.Inventors: Shashank Sharma, Douglas S. Brodie, Scott W. Miller
-
Publication number: 20240176209Abstract: Various embodiments include a camera with folded optics and lens shifting capabilities. Some embodiments include voice coil motor (VCM) actuator arrangements to provide autofocus (AF) and/or optical image stabilization (OIS) movement. Some embodiments include suspension arrangements. The suspension arrangements may include leaf springs attached to a carrier structure for the lens.Type: ApplicationFiled: February 5, 2024Publication date: May 30, 2024Applicant: Apple Inc.Inventors: Scott W. Miller, Alfred N. Mireault, Brad V. Johnson, Nicholas D. Smyth, Rummel R. Adriano, Shashank Sharma, Steven Webster
-
Publication number: 20240178004Abstract: Aspects of the present disclosure relate to methods, systems, and apparatus for conducting a radical treatment operation on a substrate prior to conducting an annealing operation on the substrate. In one implementation, a method of processing semiconductor substrates includes pre-heating a substrate, and exposing the substrate to species radicals. The exposing of the substrate to the species radicals includes a treatment temperature that is less than 300 degrees Celsius, a treatment pressure that is less than 1.0 Torr, and a treatment time that is within a range of 8.0 minutes to 12.0 minutes. The method includes annealing the substrate after the exposing of the substrate to the species radicals. The annealing includes exposing the substrate to molecules, an anneal temperature that is 300 degrees Celsius or greater, an anneal pressure that is within a range of 500 Torr to 550 Torr, and an anneal time that is less than 4.0 minutes.Type: ApplicationFiled: February 8, 2024Publication date: May 30, 2024Inventors: Pradeep SAMPATH KUMAR, Norman L. TAM, Dongming IU, Shashank SHARMA, Eric R. RIESKE, Michael P. KAMP
-
Patent number: 11982867Abstract: Some embodiments include a camera voice coil motor (VCM) actuator configured to shift a lens and/or an image sensor along multiple axes. The VCM actuator may include a bottom flexure and a top flexure that connect one or more dynamic members to one or more static members. The VCM actuator may include stationary magnets and coils held by dynamic members. In some cases, the VCM actuator may be configured to move the image sensor along an optical axis, to move the image sensor in directions orthogonal to the optical axis, and/or to tilt the image sensor relative to the orthogonal axis. In some examples, the VCM actuator may be configured to move the image sensor in directions orthogonal to the optical axis, to move the lens along the optical axis, and/or to tilt the lens relative to the optical axis.Type: GrantFiled: March 24, 2023Date of Patent: May 14, 2024Assignee: Apple Inc.Inventors: Shashank Sharma, Douglas S. Brodie, Scott W. Miller
-
Patent number: 11971651Abstract: Various embodiments include a camera with folded optics. Some embodiments include a voice coil motor (VCM) actuator module to provide autofocus (AF) and/or optical image stabilization (OIS) movement. Some embodiments include suspension arrangements. Some embodiments include flexure arrangements.Type: GrantFiled: March 22, 2022Date of Patent: April 30, 2024Assignee: Apple Inc.Inventors: Shashank Sharma, Alfred N. Mireault
-
Patent number: 11936845Abstract: The present disclosure relates to contaminant detection systems and related optical systems and methods. An example contaminant detection system includes an optical coupler configured to couple light into and/or out of an optical element. The contaminant detection system also includes a plurality of light-emitter devices configured to emit emission light toward the optical coupler. The contaminant detection system additionally includes a plurality of detector devices configured to detect at least a portion of the emission light by way of the optical element and the optical coupler. The plurality of detector devices is also configured to provide detector signals indicative of a presence of a contaminant on the optical element.Type: GrantFiled: September 8, 2022Date of Patent: March 19, 2024Assignee: Waymo LLCInventors: Benjamin Frevert, Shashank Sharma
-
Patent number: 11934090Abstract: Various embodiments include a camera with folded optics and lens shifting capabilities. Some embodiments include voice coil motor (VCM) actuator arrangements to provide autofocus (AF) and/or optical image stabilization (OIS) movement. Some embodiments include suspension arrangements.Type: GrantFiled: April 2, 2021Date of Patent: March 19, 2024Assignee: Apple Inc.Inventors: Scott W. Miller, Alfred N. Mireault, Brad V. Johnson, Nicholas D. Smyth, Rummel R. Adriano, Shashank Sharma, Steven Webster
-
Publication number: 20240087889Abstract: The present disclosure provides systems and methods for processing channel structures of substrates that include positioning the substrate in a first processing chamber having a first processing volume. The substrate includes a channel structure with high aspect ratio features having aspect ratios greater than about 20:1. The method includes forming a silicon-containing layer over the channel structure to a hydrogen-or-deuterium plasma in the first processing volume at a flow rate of about 10 sccm to about 5000 sccm. The substrate is maintained at a temperature of about 100° C. to about 1100° C. during the exposing, the exposing forming a nucleated substrate. Subsequent to the exposing a thermal anneal operation is performed on the substrate.Type: ApplicationFiled: November 17, 2023Publication date: March 14, 2024Applicant: Applied Materials, Inc.Inventors: Xinming ZHANG, Abhilash J. MAYUR, Shashank SHARMA, Norman L. TAM, Matthew SPULLER
-
Publication number: 20240085693Abstract: Example embodiments relate to replaceable, heated, and wipeable apertures for optical systems. An example embodiment includes an apparatus that includes an optical system (e.g., a camera) with a lens. The apparatus also includes a housing in which the lens is disposed. The housing has a sealing surface and a threated portion. The apparatus further includes a chamfered window that provides a protective aperture for the lens. The apparatus also includes a retainer ring that has a retaining portion and a threaded portion. The retaining portion contacts the chamfer of the window while the threaded portion of the retainer ring threads onto the threaded portion of the housing to hold the window against the sealing surface of the housing and form a watertight seal.Type: ApplicationFiled: September 13, 2022Publication date: March 14, 2024Inventor: Shashank Sharma
-
Patent number: 11927440Abstract: An apparatus includes a lens assembly that includes at least one lens that defines an optical axis. The apparatus also includes a substrate, an image sensor disposed on the substrate, and an actuator coupled to the substrate and configured to adjust a position of the substrate relative to the lens assembly to move the image sensor along the optical axis. The apparatus additionally includes a capacitive position sensor that includes a first capacitive plate coupled to the substrate and a second capacitive plate coupled to the lens assembly. The capacitive position sensor may be configured to generate a capacitance measurement indicative of the position of the substrate relative to the lens assembly. The apparatus further includes circuitry configured to control the actuator based on (i) the capacitance measurement and (ii) a target position of the image sensor relative to the lens assembly.Type: GrantFiled: May 4, 2023Date of Patent: March 12, 2024Assignee: Waymo LLCInventors: Shashank Sharma, Matthew Last, Prasanna Kalkura, Paul Schaefer
-
Publication number: 20240053656Abstract: Various embodiments include a camera with a voice coil motor (VCM) actuator assembly to provide autofocus (AF) and/or optical image stabilization (OIS) movement. The VCM actuator assembly is configured to move an image sensor of the camera in three dimensions (e.g. X, Y, and Z) to provide the AF and/or OIS movements. The VCM actuator assembly is asymmetrical and includes an at least partially open side that allows an optical assembly of the camera to pass through the open side of the VCM actuator. In some embodiments, the optical assembly is part of a folded optics arrangement of the camera that includes one or more prisms/and or lenses.Type: ApplicationFiled: October 26, 2023Publication date: February 15, 2024Applicant: Apple Inc.Inventor: Shashank Sharma
-
Publication number: 20240055265Abstract: A method and apparatus for forming a semiconductor device are provided. The method includes thermally treating a substrate having one or more silicon nanosheets formed thereon. Thermally treating the substrate includes positioning the substrate in a processing volume of a first processing chamber, the substrate having one or more silicon nanosheets formed thereon. Thermally treating the substrate further includes heating the substrate to a first temperature of more than about 250 degrees Celsius, generating hydrogen radicals using a remote plasma source fluidly coupled with the processing volume, and maintaining the substrate at the first temperature while concurrently exposing the one or more silicon nanosheets to the generated hydrogen radicals. The generated hydrogen radicals remove residual germanium from the one or more silicon nanosheets.Type: ApplicationFiled: August 11, 2022Publication date: February 15, 2024Inventors: Pradeep SAMPATH KUMAR, Norman L. TAM, Shashank SHARMA, Zhiming JIANG, Jingmin LENG, Victor CALDERON, Mahesh RAMAKRISHNA
-
Patent number: 11902648Abstract: An apparatus includes a lens assembly that includes at least one lens that defines an optical axis, a lens holder coupled to the lens assembly, a substrate, an image sensor disposed on the substrate, and an actuator coupled between the lens holder and the substrate and configured to adjust a position of the substrate relative to the lens assembly to reposition the image sensor along the optical axis. The apparatus also includes a position sensor that includes a magnet and a magnetic field sensor. The position sensor is coupled to the substrate and the lens holder. The magnetic field sensor is configured to generate magnetic field data indicating a position of the substrate relative to the lens holder. The apparatus additionally includes circuitry configured to control the actuator based on the magnetic field data to place the image sensor within a depth of focus of the lens assembly.Type: GrantFiled: December 21, 2021Date of Patent: February 13, 2024Assignee: Waymo LLCInventor: Shashank Sharma
-
Patent number: 11901195Abstract: Aspects of the present disclosure relate to methods, systems, and apparatus for conducting a radical treatment operation on a substrate prior to conducting an annealing operation on the substrate. In one implementation, a method of processing semiconductor substrates includes pre-heating a substrate, and exposing the substrate to species radicals. The exposing of the substrate to the species radicals includes a treatment temperature that is less than 300 degrees Celsius, a treatment pressure that is less than 1.0 Torr, and a treatment time that is within a range of 8.0 minutes to 12.0 minutes. The method includes annealing the substrate after the exposing of the substrate to the species radicals. The annealing includes exposing the substrate to molecules, an anneal temperature that is 300 degrees Celsius or greater, an anneal pressure that is within a range of 500 Torr to 550 Torr, and an anneal time that is less than 4.0 minutes.Type: GrantFiled: January 5, 2022Date of Patent: February 13, 2024Assignee: Applied Materials, Inc.Inventors: Pradeep Sampath Kumar, Norman L. Tam, Dongming Iu, Shashank Sharma, Eric R. Rieske, Michael P. Kamp
-
Publication number: 20240014075Abstract: A method of forming an electrical contact in a semiconductor structure includes performing a patterning process to form a mask on a semiconductor structure, the semiconductor structure comprising a first semiconductor region, a second semiconductor region, a dielectric layer having a first opening over the first semiconductor region and a second opening over the second semiconductor region, wherein the mask covers an exposed surface of the second semiconductor region within the second opening, performing an amorphization ion implant process to amorphize an exposed surface of the first semiconductor region within the first opening, performing a removal process to remove the mask, performing a selective epitaxial deposition process, to epitaxially form a contact layer on the exposed surface of the second semiconductor region, and performing a recrystallization anneal process to recrystallize the amorphized surface of the first semiconductor region.Type: ApplicationFiled: June 5, 2023Publication date: January 11, 2024Inventors: Nicolas Louis BREIL, Lisa MCGILL, Amritha RAMMOHAN, Shashank SHARMA
-
Patent number: 11835845Abstract: Various embodiments include a camera with a voice coil motor (VCM) actuator assembly to provide autofocus (AF) and/or optical image stabilization (OIS) movement. The VCM actuator assembly is configured to move an image sensor of the camera in three dimensions (e.g. X, Y, and Z) to provide the AF and/or OIS movements. The VCM actuator assembly is asymmetrical and includes an at least partially open side that allows an optical assembly of the camera to pass through the open side of the VCM actuator. In some embodiments, the optical assembly is part of a folded optics arrangement of the camera that includes one or more prisms/and or lenses.Type: GrantFiled: September 16, 2022Date of Patent: December 5, 2023Assignee: Apple Inc.Inventor: Shashank Sharma
-
Patent number: 11831986Abstract: Various embodiments include a camera with image sensor shifting capabilities and a flexure arrangement. In various embodiments, the flexure arrangement may include an upper flexure and a lower flexure. The upper flexure may include a suspension wire that extends between two sheets. The lower flexure may include one or more flexure arms that connect a moveable platform to a stationary platform.Type: GrantFiled: September 10, 2021Date of Patent: November 28, 2023Assignee: Apple Inc.Inventor: Shashank Sharma
-
Patent number: 11823901Abstract: The present disclosure provides systems and methods for processing channel structures of substrates that include positioning the substrate in a first processing chamber having a first processing volume. The substrate includes a channel structure with high aspect ratio features having aspect ratios greater than about 20:1. The method includes forming a silicon-containing layer over the channel structure to a hydrogen-or-deuterium plasma in the first processing volume at a flow rate of about 10 sccm to about 5000 sccm. The substrate is maintained at a temperature of about 100° C. to about 1100° C. during the exposing, the exposing forming a nucleated substrate. Subsequent to the exposing a thermal anneal operation is performed on the substrate.Type: GrantFiled: February 12, 2021Date of Patent: November 21, 2023Assignee: APPLIED MATERIALS INC.Inventors: Xinming Zhang, Abhilash J. Mayur, Shashank Sharma, Norman L. Tam, Matthew Spuller
-
Publication number: 20230362489Abstract: Various embodiments include a camera voice coil motor (VCM) actuator configured to shift an image sensor along multiple axes. Some embodiments include a magnet and coil arrangement. Some embodiments include a position sensing arrangement. Some embodiments include a flexure arrangement. Some embodiments include a coil structure and coil carrier assembly.Type: ApplicationFiled: July 17, 2023Publication date: November 9, 2023Applicant: Apple Inc.Inventors: Shashank Sharma, Scott W. Miller