PATENT DOCUMENT

Publication Number: US-11974031-B1
Application Number: US-202217715850-A
Country: US
Kind Code: B1

Title: Hybrid sensor shift platform with multi-core substrate for camera

Abstract:
Various embodiments include a hybrid sensor shift platform comprising a multi-core substrate for a camera. The hybrid sensor shift platform may be coupled with an image sensor. The camera may include one or more actuators configured to move the hybrid sensor shift platform together with the image sensor. The multi-core substrate may be coupled with one or more other substrates to form the hybrid sensor shift platform. For example, the hybrid sensor shift platform may include a multi-core organic substrate and a ceramic substrate in various embodiments.

Claims:
What is claimed is: 
     
       1. A hybrid sensor shift platform, comprising:
 a ceramic substrate; and 
 a multi-core organic substrate attached to the ceramic substrate, wherein the multi-core organic substrate comprises:
 a stack of layers, comprising:
 a plurality of conductive layers formed of one or more conductive materials; and 
 a plurality of core layers formed of one or more core materials; 
 
 
 wherein the sensor shift platform is configured to be fixedly coupled with an image sensor of a camera, such that the image sensor is movable together with the hybrid sensor shift platform. 
 
     
     
       2. The hybrid sensor shift platform of  claim 1 , wherein:
 the plurality of conductive layers comprises:
 a first pair of conductive layers; and 
 a second pair of conductive layers; and 
 
 the plurality of core layers comprises:
 a first core layer sandwiched between the first pair of conductive layers; and 
 a second core layer sandwiched between the second pair of conductive layers. 
 
 
     
     
       3. The hybrid sensor shift platform of  claim 1 , wherein the stack of layers of the multi-core organic substrate further comprises:
 one or more prepreg layers formed of one or more prepreg materials. 
 
     
     
       4. The hybrid sensor shift platform of  claim 1 , wherein:
 the stack of layers of the multi-core organic substrate further comprises:
 a plurality of prepreg layers formed of one or more prepreg materials; and 
 
 the plurality of conductive layers comprises:
 a first conductive layer sandwiched between a first prepreg layer of the plurality of prepreg layers and the first core layer; and 
 a second conductive layer sandwiched between a second prepreg layer of the plurality of prepreg layers and the second core layer. 
 
 
     
     
       5. The hybrid sensor shift platform of  claim 1 , wherein the hybrid sensor shift platform is configured to be coupled with a flexure of the camera that suspends the hybrid sensor shift platform from a stationary structure of the camera and that allows motion of the hybrid sensor shift platform enabled by an actuator of the camera. 
     
     
       6. The hybrid sensor shift platform of  claim 1 , wherein the average coefficient of thermal expansion (CTE) of the multi-core organic substrate is less than 135% of the CTE of the ceramic substrate. 
     
     
       7. The hybrid sensor shift platform of  claim 1 , wherein the average CTE of the multi-core organic substrate is less than 130% of the CTE of the ceramic substrate. 
     
     
       8. A camera, comprising:
 a lens group comprising one or more lens elements; 
 an image sensor; 
 an actuator to move the image sensor relative to the lens group; and 
 a hybrid sensor shift platform fixedly coupled with the image sensor such that the image sensor is movable together with the hybrid sensor shift platform, wherein the hybrid sensor shift platform comprises:
 a ceramic substrate; and 
 a multi-core organic substrate attached to the ceramic substrate, wherein the multi-core organic substrate comprises:
 a stack of layers, comprising:
 a plurality of conductive layers formed of one or more conductive materials; and 
 a plurality of core layers formed of one or more core materials. 
 
 
 
 
     
     
       9. The camera of  claim 8 , wherein:
 the plurality of conductive layers comprises:
 a first pair of conductive layers; and 
 a second pair of conductive layers; and 
 
 the plurality of core layers comprises:
 a first core layer sandwiched between the first pair of conductive layers; and 
 a second core layer sandwiched between the second pair of conductive layers. 
 
 
     
     
       10. The camera of  claim 8 , wherein the ceramic substrate is configured to be fixedly coupled with the image sensor. 
     
     
       11. The camera of  claim 8 , wherein:
 the stack of layers of the multi-core organic substrate further comprises:
 a plurality of prepreg layers formed of one or more prepreg materials; and 
 
 the plurality of conductive layers comprises:
 a first conductive layer sandwiched between a first prepreg layer of the plurality of prepreg layers and the first core layer; and 
 a second conductive layer sandwiched between a second prepreg layer of the plurality of prepreg layers and the second core layer. 
 
 
     
     
       12. The camera of  claim 8 , further comprising:
 a flexure that suspends the hybrid sensor shift platform from a stationary structure of the camera and that allows motion of the hybrid sensor shift platform enabled by the actuator, wherein the flexure comprises:
 an inner frame fixedly coupled with the ceramic substrate; 
 an outer frame fixedly coupled with the stationary structure; and 
 one or more flexure arms that connect the inner frame with the outer frame. 
 
 
     
     
       13. The camera of  claim 8 , wherein the actuator comprises:
 a voice coil motor (VCM) actuator, comprising:
 one or more magnets; and 
 one or more coils configured to electromagnetically interact with the one or more magnets to produce Lorentz forces that move the hybrid sensor shift platform in at least one of:
 a direction parallel to an optical axis of the camera; or 
 directions orthogonal to the optical axis. 
 
 
 
     
     
       14. The camera of  claim 13 , wherein the one or more coils are mounted on the multi-core organic substrate of the hybrid sensor shift platform. 
     
     
       15. The camera of  claim 13 , wherein the one or more magnets are mounted on the multi-core organic substrate of the hybrid sensor shift platform. 
     
     
       16. A device, comprising:
 one or more processors; 
 memory storing program instructions executable by the one or more processors to control operations of a camera; and 
 the camera, comprising:
 a lens group comprising one or more lens elements; 
 an image sensor; 
 an actuator to move the image sensor relative to the lens group; and 
 a hybrid sensor shift platform fixedly coupled with the image sensor such that the image sensor is movable together with the hybrid sensor shift platform, wherein the hybrid sensor shift platform comprises:
 a ceramic substrate; and 
 a multi-core organic substrate attached to the ceramic substrate, wherein the multi-core organic substrate comprises:
 a stack of layers, comprising: 
 a plurality of conductive layers formed of one or more conductive materials; and 
 a plurality of core layers formed one or more core materials. 
 
 
 
 
     
     
       17. The device of  claim 16 , wherein:
 the plurality of conductive layers comprises:
 a first pair of conductive layers; and 
 a second pair of conductive layers; and 
 
 the plurality of core layers comprises:
 a first core layer sandwiched between the first pair of conductive layers; and 
 a second core layer sandwiched between the second pair of conductive layers. 
 
 
     
     
       18. The device of  claim 16 , wherein the camera further comprises:
 a flexure that suspends the hybrid sensor shift platform from a stationary structure of the camera and that allows motion of the hybrid sensor shift platform enabled by the actuator, wherein the flexure comprises:
 an inner frame fixedly coupled with the ceramic substrate; 
 an outer frame fixedly coupled with the stationary structure; and 
 one or more flexure arms that connect the inner frame with the outer frame. 
 
 
     
     
       19. The device of  claim 18 , wherein the actuator is configured to move the hybrid sensor shift platform in directions parallel to an image plane defined by the image sensor. 
     
     
       20. The device of  claim 18 , wherein the actuator is configured to move the hybrid sensor shift platform in at least one direction orthogonal to an image plane defined by the image sensor.

Description:
BACKGROUND 
     This application claims benefit of priority to U.S. Provisional Application Ser. No. 63/176,118, entitled “Hybrid Sensor Platform with Multi-Core Substrate for Camera,” filed Apr. 16, 2021, and which is hereby incorporated herein by reference in its entirety. 
    
    
     TECHNICAL FIELD 
     This disclosure relates generally to a hybrid sensor shift platform with a multi-core substrate for a camera. 
     DESCRIPTION OF THE RELATED ART 
     The advent of small, mobile multipurpose devices such as smartphones and tablet or pad devices has resulted in a need for high-resolution, small form factor cameras for integration in the devices. Some small form factor cameras may incorporate optical image stabilization (OIS) mechanisms that may sense and react to external excitation/disturbance by adjusting location of the optical lens on the X and/or Y axis in an attempt to compensate for unwanted motion of the lens. Some small form factor cameras may incorporate an autofocus (AF) mechanism whereby the object focal distance can be adjusted to focus an object plane in front of the camera at an image plane to be captured by the image sensor. In some such autofocus mechanisms, the optical lens is moved as a single rigid body along the optical axis of the camera to refocus the camera. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIGS.  1 A- 1 B  illustrate an example camera that may include a hybrid sensor shift platform comprising a multi-core substrate, in accordance with some embodiments.  FIG.  1 A  shows a perspective view of an example exterior of the camera. 
         FIG.  1 B  shows a block diagram of example camera components. 
         FIGS.  2 A- 2 B  illustrate an example camera that may include a hybrid sensor shift platform comprising one or more multi-core organic substrates and one or more ceramic substrates, in accordance with some embodiments.  FIG.  2 A  shows a cross-sectional view of the camera.  FIG.  2 B  shows an exploded perspective view of a multi-core organic substrate and a ceramic substrate of the hybrid sensor shift platform. 
         FIG.  3    illustrates a schematic block diagram of an example stack of layers of a multi-core organic substrate that may be included in a hybrid sensor shift platform, in accordance with some embodiments. 
         FIG.  4    illustrates a table of stacks of layers of example multi-core organic substrates that may be included in a hybrid sensor shift platform, in accordance with some embodiments. 
         FIG.  5    is a flowchart of an example method of forming a hybrid sensor shift platform that may be included in a camera, in accordance with some embodiments. 
         FIG.  6    illustrates a schematic cross-sectional side view of an example camera that may include a hybrid sensor shift platform comprising a multi-core substrate, in accordance with some embodiments. 
         FIG.  7    illustrates a top view of an example flexure that may be coupled with a hybrid sensor shift platform comprising a multi-core substrate, in accordance with some embodiments. 
         FIG.  8    illustrates a schematic representation of an example environment comprising a device that may include a camera with a hybrid sensor shift platform comprising a multi-core substrate, in accordance with some embodiments. 
         FIG.  9    illustrates a schematic block diagram of an example environment comprising a computer system that may include a camera with a hybrid sensor shift platform comprising a multi-core substrate, in accordance with some embodiments. 
     
    
    
     This specification includes references to “one embodiment” or “an embodiment.” The appearances of the phrases “in one embodiment” or “in an embodiment” do not necessarily refer to the same embodiment. Particular features, structures, or characteristics may be combined in any suitable manner consistent with this disclosure. 
     “Comprising.” This term is open-ended. As used in the appended claims, this term does not foreclose additional structure or steps. Consider a claim that recites: “An apparatus comprising one or more processor units . . . . ” Such a claim does not foreclose the apparatus from including additional components (e.g., a network interface unit, graphics circuitry, etc.). 
     “Configured To.” Various units, circuits, or other components may be described or claimed as “configured to” perform a task or tasks. In such contexts, “configured to” is used to connote structure by indicating that the units/circuits/components include structure (e.g., circuitry) that performs those task or tasks during operation. As such, the unit/circuit/component can be said to be configured to perform the task even when the specified unit/circuit/component is not currently operational (e.g., is not on). The units/circuits/components used with the “configured to” language include hardware—for example, circuits, memory storing program instructions executable to implement the operation, etc. Reciting that a unit/circuit/component is “configured to” perform one or more tasks is expressly intended not to invoke 35 U.S.C. § 112(f) for that unit/circuit/component. Additionally, “configured to” can include generic structure (e.g., generic circuitry) that is manipulated by software and/or firmware (e.g., an FPGA or a general-purpose processor executing software) to operate in manner that is capable of performing the task(s) at issue. “Configure to” may also include adapting a manufacturing process (e.g., a semiconductor fabrication facility) to fabricate devices (e.g., integrated circuits) that are adapted to implement or perform one or more tasks. 
     “First,” “Second,” etc. As used herein, these terms are used as labels for nouns that they precede, and do not imply any type of ordering (e.g., spatial, temporal, logical, etc.). For example, a buffer circuit may be described herein as performing write operations for “first” and “second” values. The terms “first” and “second” do not necessarily imply that the first value must be written before the second value. 
     “Based On.” As used herein, this term is used to describe one or more factors that affect a determination. This term does not foreclose additional factors that may affect a determination. That is, a determination may be solely based on those factors or based, at least in part, on those factors. Consider the phrase “determine A based on B.” While in this case, B is a factor that affects the determination of A, such a phrase does not foreclose the determination of A from also being based on C. In other instances, A may be determined based solely on B. 
     It will also be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first contact could be termed a second contact, and, similarly, a second contact could be termed a first contact, without departing from the intended scope. The first contact and the second contact are both contacts, but they are not the same contact. 
     The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the description and the appended claims, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will also be understood that the term “and/or” as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items. It will be further understood that the terms “includes,” “including,” “comprises,” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. 
     As used herein, the term “if” may be construed to mean “when” or “upon” or “in response to determining” or “in response to detecting,” depending on the context. Similarly, the phrase “if it is determined” or “if [a stated condition or event] is detected” may be construed to mean “upon determining” or “in response to determining” or “upon detecting [the stated condition or event]” or “in response to detecting [the stated condition or event],” depending on the context. 
     DETAILED DESCRIPTION 
     Various embodiments include a hybrid sensor shift platform with a multi-core substrate for a camera. A “hybrid sensor shift platform” may refer to a sensor shift platform in which at least one substrate of the sensor shift platform is composed of an organic material, and one or more substrates of the sensor shift platform are ceramic substrates that provide the benefits of ceramics for connection to the image sensor, e.g., as discussed in Applicant&#39;s U.S. Patent Publication No. 2021/0028216, which is incorporated by reference in its entirety herein. In the event of inconsistent usages between the instant disclosure and the document(s) incorporated by reference, the usage in the incorporated reference(s) should be considered supplementary to that of this disclosure; for irreconcilable inconsistencies, the usage in this disclosure controls. 
     The hybrid sensor shift platform may be coupled with an image sensor. The camera may include one or more actuators configured to move the image sensor (together with the hybrid sensor shift platform), e.g., to provide autofocus (AF) and/or optical image stabilization (OIS) motion of an image on the image sensor. The multi-core substrate may be coupled with one or more other substrates (e.g., a different type of substrate) to form the hybrid sensor shift platform. For example, the hybrid sensor shift platform may include a multi-core organic substrate and a ceramic substrate in various embodiments. The multi-core organic substrate may include multiple core layers, one or more conductive layers, and/or one or more other types of layers (e.g., prepreg layers). 
     The multi-core organic substrate may be designed to include multiple core layers (instead of a single core layer, for example) for warpage performance purposes. In some examples, one or more high-temperature processes (e.g., a high-temperature reflow process) may be used in attaching the ceramic substrate to the multi-core organic substrate. During such an attachment process, were the organic substrate to have a significantly different average CTE than the ceramic substrate, the resulting hybrid sensor shift platform may have poor flatness (e.g., U-shaped, where flatness is desirable) and/or other warpage problems. As an example, a single-core organic substrate having a single core layer may have a significantly higher average CTE than the ceramic substrate. The single-core organic substrate may experience substantial warpage during a high-temperature attachment process. The ceramic substrate may warp to the single-core organic substrate&#39;s (warped) flatness, and relaxation of the single-core organic substrate may be constrained because it is attached to the ceramic substrate. 
     By comparison, the hybrid sensor shift platform disclosed herein, which includes a multi-core organic substrate, may be designed such that its average CTE more closely aligned with the CTE of the ceramic substrate. For example, the average CTE of the multi-core organic substrate may be tuned via the inclusion of multiple distributed core layers and/or performance of conductive material balancing so that the average CTE of the multi-core organic substrate is within a threshold CTE difference with the CTE of the ceramic substrate. The average CTE of the multi-core organic substrate, the CTE of the ceramic substrate, and/or the threshold CTE difference may be determined based at least in part on design requirements and/or design constraints for a particular application of the hybrid sensor shift platform. 
     Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. However, it will be apparent to one of ordinary skill in the art that some embodiments may be practiced without these specific details. In other instances, well-known methods, procedures, components, circuits, and networks have not been described in detail so as not to unnecessarily obscure aspects of the embodiments. 
       FIGS.  1 A- 1 B  illustrate an example camera  100  that may include a hybrid sensor shift platform comprising a multi-core substrate, in accordance with some embodiments.  FIG.  1 A  shows a perspective view of an example exterior  102  of the camera  100 .  FIG.  1 B  shows a block diagram of example camera components  104 . 
     In some embodiments, the camera components  104  may include a lens group  106 , an image sensor  108 , and an actuator (e.g., voice coil motor (VCM) actuator  110 ). The lens group  106  may include one or more lens elements that define an optical axis  112 . The image sensor  108  may be configured to receive light that has passed through the lens group  106  and convert the captured light into image signals. In some embodiments, the VCM actuator  110  may include one or more magnets  114 , one or more coils  116 , one or more coil holding component(s)  118 , one or more bottom flexures  120 , and/or one or more top flexures  122 . 
     The magnets  114  and the coils  116  may be configured to electromagnetically interact with one another, e.g., to produce Lorentz forces that cause one or more of the coil holding components  118  to shift along multiple axes. For instance, a coil holding component  118  may move in directions orthogonal to the optical axis  112  (e.g., along the X-Y plane) to provide optical image stabilization (OIS) functionality in some embodiments. Additionally, or alternatively, a coil holding component  118  may move along the optical axis (e.g., along the Z axis) to provide autofocus (AF) functionality in some embodiments. Additionally, or alternatively, a coil holding component  118  may tilt relative to the optical axis (e.g., along the X- and Y-axes). In various examples, the lens group  106  and/or the image sensor  108  may be configured to shift together (e.g., in lockstep) with respective coil holding component(s)  118 . 
     The coil(s)  116  may include AF coil(s)  124  and sensor positioning (SP) coil(s)  126 . In some embodiments, the coil holding component(s)  118  may include a hybrid sensor shift platform  128  (e.g., the hybrid sensor shift platform comprising a multi-core substrate) and a lens holder  130 . For instance, the hybrid sensor shift platform  128  may be configured to hold at least one SP coil  126 , and the lens holder  130  may be configured to hold at least one AF coil  124 . The hybrid sensor shift platform  128  may be coupled with the image sensor  108  such that the image sensor  108  shifts together with the hybrid sensor shift platform  128 . Furthermore, the lens holder  130  may be coupled with the lens group  106  such that the lens group  106  shifts together with the lens holder  130 . 
     In some embodiments, the bottom flexure(s)  120  may be configured to mechanically connect the hybrid sensor shift platform  128  to one or more stationary structures of the camera  100  (e.g., static platform  132 ). For example, the bottom flexure(s)  120  may be configured to suspend the hybrid sensor shift platform  128  (together with the image sensor  108 ) from the static platform  132 . The bottom flexure(s)  120  may also be configured to provide compliance that allows motion of the hybrid sensor shift platform  128  enabled by the VCM actuator  110 . 
     In some embodiments, the top flexure(s)  122  may be configured to mechanically connect the lens holder  130  to one or more stationary structures of the camera  100  (e.g., static platform  134 ). For example, the top flexure(s)  122  may be configured to suspend the lens holder  130  (together with the lens group  106 ) from the static platform  134 . The top flexure(s)  122  may also be configured to provide compliance that allows movement of the hybrid sensor shift platform  128  enabled by the VCM actuator  110 . 
     The AF coil(s)  124  may receive a current and electromagnetically interact with the magnet(s)  114  to produce Lorentz forces that cause the lens holder  130  to shift. For instance, electromagnetic interaction between the AF coil(s)  124  and the magnet(s)  114  may produce Lorentz forces that cause the lens holder  130  to move in a direction parallel to the optical axis  112  and/or to tilt relative to the optical axis  112 . The lens group  106  may shift together (e.g., in lockstep) with the lens holder  130 . 
     Furthermore, the SP coil(s)  126  may receive a current and electromagnetically interact with the magnet(s)  114  to produce Lorentz forces that cause the hybrid sensor shift platform  128  to shift. For instance, electromagnetic interaction between the SP coil(s)  126  and the magnet(s)  114  may produce Lorentz forces that cause the hybrid sensor shift platform  128  to move in directions orthogonal to the optical axis  112 . The image sensor  108  may shift together (e.g., in lockstep) with the hybrid sensor shift platform  128 . 
       FIGS.  2 A- 2 B  illustrate an example camera  200  that may include a hybrid sensor shift platform  202  (e.g., hybrid sensor shift platform  128 ) formed from one or more organic substrates (e.g., including a multi-core organic substrate  204 ) and one or more ceramic substrates (e.g., ceramic substrate  206   a  and/or ceramic substrate  206   b ).  FIG.  2 A  shows a cross-sectional view of the camera  200 .  FIG.  2 B  shows an exploded perspective view of multi-core organic substrate  204  and ceramic substrate  206   a  of the hybrid sensor shift platform  202 . In the illustrated example, the hybrid sensor shift platform  202  includes one multi-core organic substrate  204  and two ceramic substrates  206   a  and  206   b . It should be appreciated, however, that the hybrid sensor shift platform  202  may include a different number of organic substrates and/or a different number of ceramic substrates. As a non-limiting example, the hybrid sensor shift platform  202  may include one multi-core organic substrate and one ceramic substrate in various embodiments. 
     According to some embodiments, the camera  200  may include a lens group  208  and an image sensor  210 . The image sensor  210  may be configured to receive light that has passed through the lens group  208  and convert the captured light into image signals. In various embodiments, the multi-core organic substrate  204  may be the “top” and/or “upper” substrate of the hybrid sensor shift platform  202 . For example, the multi-core organic substrate  204  may be positioned above the ceramic substrate  206   a  (and/or ceramic substrate  206   b ). The multi-core organic substrate  204  may be positioned closer to the lens group  208 , relative to the ceramic substrate  206   a . In various embodiments, the ceramic substrate(s) may be considered the “bottom” and/or “lower” substrate(s) of the hybrid sensor shift platform  202 . For example, the ceramic substrate  206   a  and/or the ceramic substrate  206   b  may be positioned below the multi-core organic substrate  204 . 
     In some embodiments, the ceramic substrate(s) may be coupled with the multi-core organic substrate  204  and with the image sensor  210 . For example, as indicated in  FIG.  2 A , an upper surface of the ceramic substrate  206   a  may be attached to a bottom surface of the multi-core organic substrate  204  using one or more bonding material(s)  212  (e.g., solder, adhesive, etc.). According to some non-limiting embodiments, the ceramic substrate  206   a  may be connected via a solder bond process to the multi-core organic substrate  204  with a specific pad definition/arrangement. To take stress off the solder bonds between the multi-core organic substrate  204  and the ceramic substrate  206   a , the solder bond connection may be reinforced with an under-fill of epoxy that surrounds the solder bonds, thus creating a full interface between the substrates within their overlap. 
     As discussed in greater detail in  FIGS.  3 - 4   , the multi-core organic substrate  204  may be formed of a stack of layers that include multiple core layers (e.g., core layers core layer  302  and  304  in  FIG.  3   , the core layers shown in  FIG.  4   , etc.). In various embodiments, the core layers have a different coefficient of thermal expansion (CTE) than other types of layers in the multi-core organic substrate  204 . For example, the multi-core organic substrate  204  may include one or more conductive layers (e.g., conductive layers  306 ,  308 ,  310 , and  312  in  FIG.  3   , the conductive layers shown in  FIG.  4   , etc.) and/or one or more prepreg layers (e.g., the prepreg layers shown in  FIG.  4   ). Multiple core layers may be included to adjust (e.g., reduce) the average CTE of the multi-core organic substrate  204  to more closely align the average CTE of the multi-core organic substrate  204  with the CTE of the ceramic substrate  206   a , e.g., as compared to an organic substrate that has a single core layer (which may have an average CTE that is significantly higher than the CTE of the ceramic substrate  206   a ). As previously indicated, the lower the difference between the average CTE of the organic substrate and the CTE of the ceramic substrate, the less warpage may result from the attachment process used to attach the ceramic substrate to the organic substrate in some cases. 
     Using an organic substrate as the top substrate of the hybrid sensor shift platform  202  may reduce the mass of the hybrid sensor shift platforms  202  when compared to a ceramic sensor shift platform (not shown), for example by 10-20%. The multi-core organic substrate  204  of the hybrid sensor shift platform  202  may be the largest substrate, may be the closest substrate to the VCM magnets, and/or may hold one or more sensor positioning (SP) coils (e.g., SP coil(s)  126 , SP sensors, and various other electrical components (not shown)). Since the mass of the hybrid sensor shift platform  202  may be significantly reduced by using an organic material for the top substrate, the magnetic force and thus the power required to move the hybrid sensor shift platform  202  and the thermal heat generated may be significantly reduced when compared to a ceramic sensor shift platform. 
     Furthermore, magnetic attraction between the hybrid sensor shift platform  202  and the VCM magnets may be significantly reduced as compared to a ceramic sensor shift platform (e.g., by 90-95%). For example, a process used for the ceramic substrate(s) may result in magnetization of the ceramic substrate(s). That process may not be used for the multi-core organic substrate  204  (which may be the closest substrate to the VCM magnets), so the multi-core organic substrate  204  may not be magnetized in the same manner as the ceramic substrate(s). 
     As previously mentioned, the multi-core organic substrate  204  may be the top substrate of the hybrid sensor shift platform  202  and thus closest to other components of the camera  200  that may contact the hybrid sensor shift platform  202  during a drop event in some embodiments. The multi-core organic substrate  204  of the hybrid sensor shift platform  202  may be more resilient and/or flexible than ceramic material, and thus less prone to fracture. Thus, the hybrid sensor shift hybrid sensor shift platform  202  may be more reliable and less prone to fracture in drop events when compared to a ceramic sensor shift platform. 
     As compared to a ceramic sensor shift platform, embodiments of the hybrid sensor shift platform  202  may reduce the weight of the sensor shift platform, reduce unwanted magnetic interaction between the sensor shift platform and the VCM magnets, make the sensor shift platform more reliable, and/or may reduce cost of manufacture, while still meeting the overall requirements of the sensor shift platform. 
       FIG.  2 B  shows top surfaces of the multi-core organic substrate  204  and the ceramic substrate  206   a . Non-limiting example contact points for attaching various components (e.g., SP coil  618  and position sensor  622  in  FIG.  6   ) to the top surface of multi-core organic substrate  204  are indicated as dots on the top surface of multi-core organic substrate  204  in  FIG.  2 B . Similarly, non-limiting example contact points (that correspond to contact points on the bottom surface (not shown) of the multi-core organic substrate  204 ) are indicated as dots on the top surface of the ceramic substrate  206   a . Contact points on the bottom surface of the multi-core organic substrate  204  may be connected to the corresponding contact points on the top surface of the ceramic substrate  206   a  via a solder bond process. To take stress off the solder bonds between the multi-core organic substrate  204  and the ceramic substrate  206   a , the connection between the substrates may be reinforced with an under-fill of epoxy that surrounds the solder bonds, thus creating a full interface between the multi-core organic substrate  204  and the ceramic substrate  206   a  within the overlap of the two substrates. 
       FIG.  3    illustrates a schematic block diagram of an example stack of layers  300  of a multi-core organic substrate (e.g., multi-core organic substrate  204  in  FIGS.  2 A- 2 B ) that may be included in a hybrid sensor shift platform. In some embodiments, the stack of layers  300  may include multiple core layers, such as core layer  302  and core layer  304 . Furthermore, the stack of layers  300  may include multiple conductive layers, such as conductive layers  306 ,  308 ,  310 , and  312  (e.g., copper layers). It should be appreciated that one or more other types of layers may be included in the stack of layers  300  in various embodiments. For example, as discussed herein with reference to  FIG.  4   , the multi-core organic substrate may include one or more prepreg layers and/or one or more other types of dielectric layers. In various embodiments, the core layers, conductive layers, and prepreg layers, etc., may comprise corresponding materials used in printed circuit board (PCB) manufacturing. 
     In various embodiments, the core layers  302  and  304  (and the prepreg layers in  FIG.  4   ) may be dielectric layers that may be disposed between conductive layers. The core layers  302  and  304  may be formed of one or more core materials. In some non-limiting examples, the core layers  302  and  304  may comprise one or more prepreg laminates that are pressed, hardened, and cured. Furthermore, the core layers  302  and  304  may be plated with copper foil on each side. The prepreg layers may be formed of one or more prepreg materials. In various embodiments, a prepreg layer may comprise a composite material made from pre-impregnated fibers (e.g., fibers pre-impregnated with an uncured or partially partially cured polymer matrix). In some embodiments, the fibers are pre-impregnated with a resin (e.g., epoxy resin, phenolic resin, etc.) and/or a thermoplastic mixed with liquid rubbers or resins. The fibers may comprise a weave (e.g., a fiberglass weave). 
     In some non-limiting embodiments, the core layer  302  and/or the core layer  304  may have a coefficient of thermal expansion (CTE) ranging from 4 to 6 ppm/° C., a laminate thickness ranging from 0.05 to 0.21 mm, a flexural modulus (lengthwise) ranging from 30 to 32 GPa, and/or a dielectric constant ranging from 4.3 to 4.5. 
     In some non-limiting embodiments, the core layer  302  and/or the core layer  304  may have a CTE ranging from 1.5 to 2 ppm/° C., a laminate thickness ranging from 0.04 to 0.31 mm, a flexural modulus (lengthwise) ranging from 34 to 36 GPa, and/or a dielectric constant ranging from 4.0 to 4.2. 
     In some non-limiting embodiments, one or more prepreg layers may have a CTE ranging from 8 to 10 ppm/° C. (X) and ranging from 2 to 5 ppm/° C. (Y), and/or a dielectric thickness (after laminate) ranging from 0.021 to 0.040 mm. Additionally, or alternatively, the prepreg layer(s) may comprise glass cloth with a resin content ranging from 73±2 to 84±2%. 
     In some non-limiting embodiments, one or more prepreg layers may have a CTE ranging from 6 to 7 ppm/° C. (X) and ranging from 2 to 4 ppm/° C. (Y), and/or a dielectric thickness (after laminate) ranging from 0.016 to 0.052 mm. Additionally, or alternatively, the prepreg layer(s) may comprise glass cloth with a resin content ranging from 67±2 to 83±2%. 
       FIG.  4    illustrates a table  400  of stacks of layers of example multi-core organic substrates that may be included in a hybrid sensor shift platform. In table  400 , labels “L1-L8” indicate rows corresponding to conductive layers. The columns of the table  400  correspond to (from left to right): reference  402  (an example single-core organic substrate); a first multi-core organic substrate with six conductive layers and three core layers (“first multi-core stack  404 ”); a second multi-core organic substrate with eight conductive layers and two core layers (“second multi-core stack  406 ”); and a third multi-core organic substrate with eight conductive layers and four core layers (“third multi-core stack  408 ”). As indicated in table  400 , the stacks of layers may include conductive layers  410 , prepeg (“PPG”) layers  412 , and/or core layers  414 . In table  400 , the letters “a” or “b” appended to the reference numerals of the layers, are used to indicate relative thickness, with “b” indicating a greater thickness relative to “a”. For example, conductive layers  410   b  are thicker than conductive layers  410   a , PPG layers  412   b  are thicker than PPG layers  412   a , and core layers  414   b  are thicker than core layers  414   a . It should be understood that the stacks of layers shown in table  400  are intended to be non-exhaustive, illustrative examples. 
     According to various embodiments, the conductive layers  410  may be used for conveying electrical signals and/or for electrical grounding. As a non-limiting example, the conductive layers  410  may be formed of copper. It should be appreciated, however, that other types of conductive materials may be used in various embodiments. 
     As previously mentioned, multiple core layers  414  may be included in an organic substrate so that the average coefficient of thermal expansion (CTE) of the organic substrate is closer in value to the CTE of a ceramic substrate (that is coupled with the organic substrate to form the hybrid sensor shift platform), which may improve warpage performance (e.g., reduce warpage) of the hybrid sensor shift platform. In various embodiments, the core layers  414  may have a CTE that is lower than the PPG layers  412  and the conductive layers  410 . Furthermore, the PPG  412  layers may have a CTE that is lower than the conductive layers  410 . To reduce the average CTE of the organic substrate, the layers of the of the organic substrate may be tuned, e.g., by replacing PPG  412  layers with core layers  414 , reducing the conductive layer  410  thickness, etc. In various embodiments, layer thicknesses can be changed to adjust parameters such as average CTE and stiffness. 
     Reference  402  is an organic stack-up that includes eight conductive layers  410   a - b  (also “L1-L8”), a single core layer  414   b  in the middle of the stack (between conductive layers L4 and L5), and six PPG layers  412   b  (each sandwiched between a respective pair of conductive layers  410 ). 
     First multi-core stack  404  is an organic stack-up that includes six conductive layers  410   b  (L2-L7), three core layers  414   a , and two PPG layers  412   a , as indicated in  FIG.  4   . The conductive layers  410   b  in the first multi-core stack  404  have the same thickness as the conductive layers  410   b  in reference  402 . Each of the three core layers  414   a  in the first multi-core stack  404  is thinner than the single core layer  414   b  in reference  402 . Each of the two PPG layers  412   a  in the first multi-core stack  404  is thinner than the PPG layers  412   b  in reference  402 . 
     Second multi-core stack  406  is an organic stack-up that includes eight conductive layers  410   a - 410   b  (L1-L8), two core layers  414   a , and five PPG layers  412   a , as indicated in  FIG.  4   . 
     Third multi-core stack  408  is an organic stack-up that includes eight conductive layers  410   b  (L1-L8), four core layers  414   a , and three PPG layers  412   a , as indicated in  FIG.  4   . 
     According to some non-limiting embodiments, the average CTE of a multi-core organic substrate of a hybrid sensor shift platform may be less than 135% of the CTE of the ceramic substrate. According to some non-limiting embodiments, the average CTE of the multi-core organic substrate may be less than 130% of the CTE of the ceramic substrate. Various embodiments disclosed herein may be used to reduce the average CTE of the multi-core organic substrate, thereby reducing a CTE mismatch with the ceramic substrate. 
       FIG.  5    is a flowchart of an example method  500  of forming a hybrid sensor shift platform (e.g., hybrid sensor shift platform  128  in  FIGS.  1 A- 1 B , hybrid sensor shift platform  202  in  FIG.  2 A , etc.) that may be included in a camera (e.g., camera  100  in  FIGS.  1 A- 1 B , camera  200  in  FIGS.  2 A- 2 B , etc.). It should be understood that in some embodiments one or more operations of method  500  may be omitted, and/or one or more operations may be added. Furthermore, the order of the operations of method  500  may be different than indicated in  FIG.  5    in some embodiments. 
     At  502 , the method  500  may include determining a threshold coefficient of thermal expansion (CTE) difference for substrates of a hybrid sensor shift platform. For example, the hybrid sensor shift platform may include a ceramic substrate and an organic substrate. The threshold CTE difference may refer to a threshold difference between the CTE of the ceramic substrate and the average CTE of the organic substrate. This threshold may be a difference in absolute terms, for example. Additionally, or alternatively the threshold may be expressed in proportional/relative terms. 
     At  504 , the method  500  may include determining a first CTE of a first substrate of the hybrid sensor shift platform. For example, the first CTE may be the CTE of a ceramic substrate to be used in the hybrid sensor shift platform for a particular camera design. 
     At  506 , the method  500  may include designing a second substrate of the hybrid sensor shift platform with a second CTE that is within the threshold CTE difference with the first CTE of the first substrate. According to various embodiments, the second substrate may have multiple core layers. For example, the second substrate may be a multi-core organic substrate. As disclosed herein, the layers of the multi-core organic substrate may be tuned (e.g., by inclusion of multiple core layers and/or reduction of copper layer thickness) to reduce the average CTE of the multi-core organic substrate. 
     At  508 , the method  500  may include coupling the first substrate with the second substrate to form the hybrid sensor shift platform. For example, the ceramic substrate may be attached to the multi-core organic substrate using a high-temperature attachment process. Warpage of the hybrid sensor shift platform may be minimized by closely aligning the average CTE of the organic substrate with the CTE of the ceramic substrate. 
       FIG.  6    illustrates a schematic cross-sectional side view of an example camera  600  that may include a hybrid sensor shift platform comprising a multi-core substrate. In some embodiments, the camera  600  may include a lens group  602 , an image sensor  604 , and a voice coil motor (VCM) actuator  606 . The lens group  602  may define an optical axis. The image sensor  604  may be configured to capture light passing through the lens group  602  and convert the captured light into image signals. In some cases, the VCM actuator module  606  may be one of multiple VCM actuator modules of the camera  600 . For instance, the camera  600  may include four such VCM actuator modules  606 , such as two pairs of VCM actuator modules  606  that oppose one another relative to the lens group  602 . The VCM actuator module(s)  606  may be configured to move the lens group  602  along the optical axis (e.g., in the Z-axis direction, to provide autofocus (AF) functionality) and/or tilt the lens group  602  relative to the optical axis. Furthermore, the VCM actuator module(s)  606  may be configured to move the image sensor  604  in directions orthogonal to the optical axis (e.g., in the X-axis and/or Y-axis directions, to provide optical image stabilization (OIS) functionality). 
     In various embodiments, the VCM actuator module  606  may include a magnet  608  (e.g., a stationary single pole magnet), a lens holder  610 , a hybrid sensor shift platform  612 , a top flexure (not shown), and a bottom flexure (e.g., bottom flexure(s)  120  in  FIG.  1 B , flexure  700  in  FIG.  7   , etc.). Furthermore, the VCM actuator module  606  may include an AF coil  616  and a bottom sensor positioning (SP) coil  618 . 
     In some embodiments, the lens holder  610  may hold, or otherwise support, the AF coil  616  proximate a side of the magnet  608 . The lens holder  610  may be coupled to the lens holder  610  such that the lens group  602  shifts together with the lens holder  610 . 
     According to some embodiments, the hybrid sensor shift platform  612  may comprise a multi-core organic substrate and a ceramic substrate. In various embodiments, the hybrid sensor shift platform  612  may hold, or otherwise support, the bottom SP coil  618  proximate a bottom side of the magnet  608 . For example, the bottom SP coil  618  may be coupled to the multi-core organic substrate of the hybrid sensor shift platform  612 . The hybrid sensor shift platform  612  may be coupled to the image sensor  604  such that the image sensor  604  shifts together with the hybrid sensor shift platform  612 . For example, the image sensor  604  may be coupled to the ceramic substrate of the hybrid sensor shift platform  612 . In some embodiments, the hybrid sensor shift platform  612  may also be coupled with, or may otherwise support, an infrared cut-off filter (IRCF)  620  (and/or one or more other optical elements), e.g., as indicated in  FIG.  6   . 
     In some embodiments, the VCM actuator module  606  may include a position sensor  622  (e.g., a Hall sensor) for position detection based on movement of the SP coil  618  in directions orthogonal to the optical axis. For example, the position sensor  622  may be located on the hybrid sensor shift platform  612  proximate to the SP coil  618 . 
     As also discussed herein with reference to  FIG.  7   , the flexure  614  may be configured to provide compliance for motion of the hybrid sensor shift platform  612  in directions orthogonal to the optical axis (and/or parallel to an image plane defined by the image sensor  604 ). Furthermore, the flexure  614  may be configured to suspend the hybrid sensor shift platform  612  and the image sensor  604  from one or more stationary structures  624  of the camera  600 . 
     The top flexure (not shown) may be configured to mechanically and electrically connect the lens holder  610  to the shield can  626  and/or to one or more other stationary structures (e.g., stationary structure  624 ) of the camera  600 . The top flexure may be configured to provide compliance for motion of the lens holder  610  along the optical axis (and/or orthogonal to the image plane) and for tilt of the lens holder  610  relative to the optical axis. The shield can  626  may encase, at least in part, an interior of the camera  600 . The shield can  626  may be a stationary component that is static relative to one or more moving components (e.g., the lens holder  610  and hybrid sensor shift platform  612 ). 
     In some embodiments, the stationary magnet  608  may be fixed to a stationary structure (e.g., magnet holder  628 ). In some examples, each of the AF coil  616  and the SP coil  618  may be a race track coil. 
     Electromagnetic interaction between the AF coil  616  and the magnet  608  may produce Lorentz forces that cause the lens holder  610  to move along the optical axis (and/or orthogonal to the image plane) and/or to tilt relative to the optical axis. Electromagnetic interaction between the SP coil  618  and the magnet  608  may produce Lorentz forces that cause the hybrid sensor shift platform  612  to move in directions orthogonal to the optical axis (and/or parallel to the image plane). The lens group  602  may shift together with (e.g., in lockstep with) the lens holder  610 . Furthermore, the image sensor  604  may shift together with (e.g., in lockstep with) the hybrid sensor shift platform  612 . 
     In various embodiments, electrical contacts/connections may allow for electrical signals (e.g., image signals) to be conveyed from the image sensor  604  to a controller (not shown). For instance, the image sensor  604  may be in electrical contact with the hybrid sensor shift platform  612  via one or more contacts, and thus image signals may be conveyed from the image sensor  604  to the hybrid sensor shift platform  612 . The image signals may be conveyed from the hybrid sensor shift platform  612  to one or more external components (not shown) that are external to the camera  600 , via a flex circuit (not shown) coupled with the flexure  614 . According to various examples, electrical contacts/connections may allow for current to be conveyed from the controller to the hybrid sensor shift platform  612  to drive the SP coil  618 . 
       FIG.  7    illustrates atop view of an example flexure  700  (e.g., bottom flexure(s)  120 , flexure  214  in  FIG.  2 A , etc.) that may be coupled with a hybrid sensor shift platform (e.g., hybrid sensor shift platform  128  in  FIGS.  1 A- 1 B , hybrid sensor shift platform  202  in  FIGS.  2 A- 2 B , etc.) comprising a multi-core substrate. In various embodiments, the flexure  700  may be configured to suspend the hybrid sensor shift platform (together with an image sensor coupled with the hybrid sensor shift platform) from one or more stationary structures of the camera. Additionally, or alternatively, the flexure  700  may be configured to allow motion of the hybrid sensor shift platform enabled by one or more actuators of the camera. 
     According to some embodiments, the flexure  700  may include an inner frame  702 , an outer frame  704 , and one or more flexure arms  706 . The inner frame  702  may be fixedly coupled with the hybrid sensor shift platform. For example, the inner frame  702  may be fixedly coupled with a ceramic substrate of the hybrid sensor shift platform. The outer frame  704  may be fixedly coupled with one or more stationary structures (e.g., a base structure) of the camera. As indicated in  FIG.  7   , the outer frame  704  may at least partially encircle the inner frame  702  in some embodiments. The flexure arm(s)  706  may be configured to connect the inner frame  702  to the outer frame  704 . The flexure arm(s)  706  may allow the inner frame  702  to move relative to the outer frame  704 . The stiffness and/or compliance of the flexure arm(s)  706  may be designed based at least in part on the intended direction(s) of motion of the sensor shift actuation. For example, for optical image stabilization (OIS) motion, the actuator(s) used for sensor shift actuation may be configured to move the sensor shift platform in directions parallel to an image plane defined by the image sensor; thus, the flexure arm(s)  706  may be designed to provide sufficient compliance in the directions parallel to the image plane, and to provide sufficient stiffness in a direction orthogonal to the image plane so as to mitigate motion in that direction if such motion is undesirable. 
     In some embodiments, the flexure  700  may include one or more flexure stabilizer members  708 . The flexure stabilizer member(s)  708  may be configured to mechanically connect flexure arms  706  to each other so as to prevent interference between the flexure arms  706  that are connected by the flexure stabilizer member(s)  708 . For instance, the flexure stabilizer member(s)  708  may be configured to prevent the flexure arms  706  from colliding and/or entangling with one another, e.g., in drop events, vibration events, etc. Additionally, or alternatively, the flexure stabilizer member(s)  708  may be configured to limit motion of, and/or stabilize relative motion between, the flexure arms  706  that are connected by the flexure stabilizer member(s)  708 . Furthermore, the flexure stabilizer member(s)  708  may be arranged along various portions of the flexure arms  706  to provide in-plane stiffness as needed in the flexure  700 , e.g., to satisfy OIS design requirements in some embodiments. 
     In various embodiments, one or more of the flexure arm(s)  706  may include electrical traces (e.g., electrical trace  710 ) configured to convey electrical signals between the inner frame  702  and the outer frame  704 . In some embodiments, the electrical traces may be routed, via one or more flexure arms  706  and/or one or more flexure stabilizer members  708 , from one or more electrical connection elements  712  disposed on the inner frame  702  to one or more electrical connection elements  714  disposed on the outer frame  704 . 
       FIG.  8    illustrates a schematic representation of an example environment  600  comprising a device  802  that may include one or more cameras. For example, the device  802  may include a camera system having a hybrid sensor shift platform comprising a multi-core organic substrate, e.g., as described herein with reference to  FIGS.  1 A- 7   . In some embodiments, the device  802  may be a mobile device and/or a multifunction device. In various embodiments, the device  802  may be any of various types of devices, including, but not limited to, a personal computer system, desktop computer, laptop, notebook, tablet, slate, pad, or netbook computer, mainframe computer system, handheld computer, workstation, network computer, a camera, a set top box, a mobile device, an augmented reality (AR) and/or virtual reality (VR) headset, a consumer device, video game console, handheld video game device, application server, storage device, a television, a video recording device, a peripheral device such as a switch, modem, router, or in general any type of computing or electronic device. 
     In some embodiments, the device  802  may include a display system  804  (e.g., comprising a display and/or a touch-sensitive surface) and/or one or more cameras memory  806 . In some non-limiting embodiments, the display system  804  and/or one or more front-facing cameras  606   a  may be provided at a front side of the device  802 , e.g., as indicated in  FIG.  8   . Additionally, or alternatively, one or more rear-facing cameras  806   b  may be provided at a rear side of the device  802 . In some embodiments comprising multiple cameras  806 , some or all of the cameras  806  may be the same as, or similar to, each other. Additionally, or alternatively, some or all of the cameras  806  may be different from each other. In various embodiments, the location(s) and/or arrangement(s) of the camera(s)  806  may be different than those indicated in  FIG.  8   . 
     Among other things, the device  802  may include memory  808  (e.g., comprising an operating system  810  and/or application(s)/program instructions  812 ), one or more processors and/or controllers  814  (e.g., comprising CPU(s), memory controller(s), display controller(s), and/or camera controller(s), etc.), and/or one or more sensors  816  (e.g., orientation sensor(s), proximity sensor(s), and/or position sensor(s), etc.). In some embodiments, the device  802  may communicate with one or more other devices and/or services, such as computing device(s)  818 , cloud service(s)  820 , etc., via one or more networks  822 . For example, the device  802  may include a network interface (e.g., network interface  912  in  FIG.  9   ) that enables the device  802  to transmit data to, and receive data from, the network(s)  822 . Additionally, or alternatively, the device  802  may be capable of communicating with other devices via wireless communication using any of a variety of communications standards, protocols, and/or technologies. 
       FIG.  9    illustrates a schematic block diagram of an example environment  700  comprising a computer system  902  that may include a camera with a hybrid sensor shift platform comprising a multi-core substrate, e.g., as described herein with reference to  FIGS.  1 A- 8   . In addition, computer system  902  may implement methods for controlling operations of the camera and/or for performing image processing on images captured with the camera. In some embodiments, the device  802  (described herein with reference to  FIG.  8   ) may additionally, or alternatively, include some or all of the functional components of the described herein. 
     The computer system  902  may be configured to execute any or all of the embodiments described above. In different embodiments, computer system  902  may be any of various types of devices, including, but not limited to, a personal computer system, desktop computer, laptop, notebook, tablet, slate, pad, or netbook computer, mainframe computer system, handheld computer, workstation, network computer, a camera, a set top box, a mobile device, an augmented reality (AR) and/or virtual reality (VR) headset, a consumer device, video game console, handheld video game device, application server, storage device, a television, a video recording device, a peripheral device such as a switch, modem, router, or in general any type of computing or electronic device. 
     In the illustrated embodiment, computer system  902  includes one or more processors  704  coupled to a system memory  906  via an input/output (I/O) interface  708 . Computer system  902  further includes one or more cameras  910  coupled to the I/O interface  908 . Computer system  702  further includes a network interface  912  coupled to I/O interface  908 , and one or more input/output devices  914 , such as cursor control device  916 , keyboard  918 , and display(s)  920 . In some cases, it is contemplated that embodiments may be implemented using a single instance of computer system  902 , while in other embodiments multiple such systems, or multiple nodes making up computer system  902 , may be configured to host different portions or instances of embodiments. For example, in one embodiment some elements may be implemented via one or more nodes of computer system  902  that are distinct from those nodes implementing other elements. 
     In various embodiments, computer system  902  may be a uniprocessor system including one processor  904 , or a multiprocessor system including several processors  904  (e.g., two, four, eight, or another suitable number). Processors  904  may be any suitable processor capable of executing instructions. For example, in various embodiments processors  904  may be general-purpose or embedded processors implementing any of a variety of instruction set architectures (ISAs), such as the x86, PowerPC, SPARC, or MIPS ISAs, or any other suitable ISA. In multiprocessor systems, each of processors  904  may commonly, but not necessarily, implement the same ISA. 
     System memory  906  may be configured to store program instructions  822  accessible by processor  904 . In various embodiments, system memory  906  may be implemented using any suitable memory technology, such as static random access memory (SRAM), synchronous dynamic RAM (SDRAM), nonvolatile/Flash-type memory, or any other type of memory. Additionally, existing camera control data  924  of memory  906  may include any of the information or data structures described above. In some embodiments, program instructions  922  and/or data  924  may be received, sent or stored upon different types of computer-accessible media or on similar media separate from system memory  906  or computer system  902 . In various embodiments, some or all of the functionality described herein may be implemented via such a computer system  902 . 
     In one embodiment, I/O interface  908  may be configured to coordinate I/O traffic between processor  904 , system memory  906 , and any peripheral devices in the device, including network interface  912  or other peripheral interfaces, such as input/output devices  914 . In some embodiments, I/O interface  908  may perform any necessary protocol, timing or other data transformations to convert data signals from one component (e.g., system memory  906 ) into a format suitable for use by another component (e.g., processor  904 ). In some embodiments, I/O interface  908  may include support for devices attached through various types of peripheral buses, such as a variant of the Peripheral Component Interconnect (PCI) bus standard or the Universal Serial Bus (USB) standard, for example. In some embodiments, the function of I/O interface  908  may be split into two or more separate components, such as a north bridge and a south bridge, for example. Also, in some embodiments some or all of the functionality of I/O interface  908 , such as an interface to system memory  906 , may be incorporated directly into processors  904 . 
     Network interface  912  may be configured to allow data to be exchanged between computer system  902  and other devices attached to a network  926  (e.g., carrier or agent devices) or between nodes of computer system  902 . Network  926  may in various embodiments include one or more networks including but not limited to Local Area Networks (LANs) (e.g., an Ethernet or corporate network), Wide Area Networks (WANs) (e.g., the Internet), wireless data networks, some other electronic data network, or some combination thereof. In various embodiments, network interface  912  may support communication via wired or wireless general data networks, such as any suitable type of Ethernet network, for example; via telecommunications/telephony networks such as analog voice networks or digital fiber communications networks; via storage area networks such as Fibre Channel SANs, or via any other suitable type of network and/or protocol. 
     Input/output device(s)  914  may, in some embodiments, include one or more display terminals, keyboards, keypads, touchpads, scanning devices, voice or optical recognition devices, or any other devices suitable for entering or accessing data by one or more computer systems  902 . Multiple input/output devices  914  may be present in computer system  902  or may be distributed on various nodes of computer system  902 . In some embodiments, similar input/output devices may be separate from computer system  902  and may interact with one or more nodes of computer system  902  through a wired or wireless connection, such as over network interface  912 . 
     Those skilled in the art will appreciate that computer system  902  is merely illustrative and is not intended to limit the scope of embodiments. In particular, the computer system and devices may include any combination of hardware or software that can perform the indicated functions, including computers, network devices, Internet appliances, PDAs, wireless phones, pagers, etc. Computer system  902  may also be connected to other devices that are not illustrated, or instead may operate as a stand-alone system. In addition, the functionality provided by the illustrated components may in some embodiments be combined in fewer components or distributed in additional components. Similarly, in some embodiments, the functionality of some of the illustrated components may not be provided and/or other additional functionality may be available. 
     Those skilled in the art will also appreciate that, while various items are illustrated as being stored in memory or on storage while being used, these items or portions of them may be transferred between memory and other storage devices for purposes of memory management and data integrity. Alternatively, in other embodiments some or all of the software components may execute in memory on another device and communicate with the illustrated computer system via inter-computer communication. Some or all of the system components or data structures may also be stored (e.g., as instructions or structured data) on a computer-accessible medium or a portable article to be read by an appropriate drive, various examples of which are described above. In some embodiments, instructions stored on a computer-accessible medium separate from computer system  902  may be transmitted to computer system  902  via transmission media or signals such as electrical, electromagnetic, or digital signals, conveyed via a communication medium such as a network and/or a wireless link. Various embodiments may further include receiving, sending or storing instructions and/or data implemented in accordance with the foregoing description upon a computer-accessible medium. Generally speaking, a computer-accessible medium may include a non-transitory, computer-readable storage medium or memory medium such as magnetic or optical media, e.g., disk or DVD/CD-ROM, volatile or non-volatile media such as RAM (e.g., SDRAM, DDR, RDRAM, SRAM, etc.), ROM, etc. In some embodiments, a computer-accessible medium may include transmission media or signals such as electrical, electromagnetic, or digital signals, conveyed via a communication medium such as network and/or a wireless link. 
     The following clauses describe various
         Clause 1. A hybrid sensor shift platform, comprising:
           a ceramic substrate; and   a multi-core organic substrate attached to the ceramic substrate, wherein the multi-core organic substrate comprises:
               a stack of layers, comprising:
                   a plurality of conductive layers formed of one or more conductive materials; and   a plurality of core layers formed of one or more core materials;   
                   
               wherein the sensor shift platform is configured to be fixedly coupled with an image sensor of a camera, such that the image sensor is movable together with the hybrid sensor shift platform.   
           Clause 2. The hybrid sensor shift platform of clause 1, wherein:
           the plurality of conductive layers comprises:
               a first pair of conductive layers; and   a second pair of conductive layers; and   
               the plurality of core layers comprises:
               a first core layer sandwiched between the first pair of conductive layers; and   a second core layer sandwiched between the second pair of conductive layers.   
               
           Clause 3. The hybrid sensor shift platform of claim  1 , wherein the stack of layers of the multi-core organic substrate further comprises:
           one or more prepreg layers formed of one or more prepreg materials.   
           Clause 4. The hybrid sensor shift platform of clause 1, wherein the ceramic substrate is configured to be fixedly coupled with the image sensor.   Clause 5. The hybrid sensor shift platform of clause 4, wherein the multi-core organic substrate is fixedly attached to the ceramic substrate by solder bonds.   Clause 6. The hybrid sensor shift platform of clause 1, wherein:
           the stack of layers of the multi-core organic substrate further comprises:
               a plurality of prepreg layers formed of one or more prepreg materials;   
               and   the plurality of conductive layers comprises:
               a first conductive layer sandwiched between a first prepreg layer of the plurality of prepreg layers and the first core layer; and   a second conductive layer sandwiched between a second prepreg layer of the plurality of prepreg layers and the second core layer.   
               
           Clause 7. The hybrid sensor shift platform of clause 1, wherein the plurality of conductive layers comprises one or more copper layers.   Clause 8. The hybrid sensor shift platform of clause 1, wherein:
           the plurality of conductive layers comprises six copper layers; and   the plurality of core layers comprises three core layers.   
           Clause 9. The hybrid sensor shift platform of clause 8, wherein the stack of layers of the multi-core organic substrate further comprises:
           two prepreg layers formed of one or more prepreg materials.   
           Clause 10. The hybrid sensor shift platform of clause 1, wherein:
           the plurality of conductive layers comprises eight copper layers; and   the plurality of core layers comprises two core layers.   
           Clause 11. The hybrid sensor shift platform of clause 10, wherein the stack of layers of the multi-core organic substrate further comprises:
           five prepreg layers formed of one or more prepreg materials.   
           Clause 12. The hybrid sensor shift platform of clause 1, wherein:
           the plurality of conductive layers comprises eight copper layers; and   the plurality of core layers comprises four core layers.   
           Clause 13. The hybrid sensor shift platform of clause 12, wherein the stack of layers of the multi-core organic substrate further comprises:
           three prepreg layers formed of one or more prepreg materials.   
           Clause 14. The hybrid sensor shift platform of clause 1, wherein the hybrid sensor shift platform is configured to be coupled with a flexure of the camera that suspends the hybrid sensor shift platform from a stationary structure of the camera and that allows motion of the hybrid sensor shift platform enabled by an actuator of the camera.   Clause 15. The hybrid sensor shift platform of clause 1, wherein the average coefficient of thermal expansion (CTE) of the multi-core organic substrate is less than 135% of the CTE of the ceramic substrate.   Clause 16. The hybrid sensor shift platform of clause 1, wherein the average CTE of the multi-core organic substrate is less than 130% of the CTE of the ceramic substrate.   Clause 17. A camera, comprising:
           a lens group comprising one or more lens elements;   an image sensor;   an actuator to move the image sensor relative to the lens group; and   
           a hybrid sensor shift platform fixedly coupled with the image sensor such that the image sensor is movable together with the hybrid sensor shift platform, wherein the hybrid sensor shift platform comprises:
           a ceramic substrate; and   a multi-core organic substrate attached to the ceramic substrate, wherein the multi-core organic substrate comprises:
               a stack of layers, comprising:
                   1. a plurality of conductive layers formed of one or more conductive materials; and   2. a plurality of core layers formed of one or more core materials.   
                   
               
           Clause 18. The camera of clause 17, wherein:
           the plurality of conductive layers comprises:
               a first pair of conductive layers; and   a second pair of conductive layers; and   
               the plurality of core layers comprises:
               a first core layer sandwiched between the first pair of conductive layers; and   a second core layer sandwiched between the second pair of conductive layers.   
               
           Clause 19. The camera of clause 17, wherein the stack of layers of the multi-core organic substrate further comprises:
           one or more prepreg layers formed of one or more prepreg materials.   
           Clause 20. The camera of clause 17, wherein the ceramic substrate is configured to be fixedly coupled with the image sensor.   Clause 21. The camera of clause 17, wherein:
           the stack of layers of the multi-core organic substrate further comprises:
               a plurality of prepreg layers formed of one or more prepreg materials;   
               and   the plurality of conductive layers comprises:
               a first conductive layer sandwiched between a first prepreg layer of the plurality of prepreg layers and the first core layer; and   a second conductive layer sandwiched between a second prepreg layer of the plurality of prepreg layers and the second core layer.   
               
           Clause 22. The camera of clause 17, further comprising:
           a flexure that suspends the hybrid sensor shift platform from a stationary structure of the camera and that allows motion of the hybrid sensor shift platform enabled by the actuator, wherein the flexure comprises:
               an inner frame fixedly coupled with the ceramic substrate;   an outer frame fixedly coupled with the stationary structure; and   one or more flexure arms that connect the inner frame with the outer frame.   
               
           Clause 23. The camera of clause 17, wherein the actuator comprises:
           a voice coil motor (VCM) actuator, comprising:
               one or more magnets; and   one or more coils configured to electromagnetically interact with the one or more magnets to produce Lorentz forces that move the hybrid sensor shift platform in at least one of:
                   a direction parallel to an optical axis of the camera; or   directions orthogonal to the optical axis.   
                   
               
           Clause 24. The camera of clause 23, wherein at least a portion of the VCM actuator is fixedly coupled with the hybrid sensor shift platform.   Clause 25. The camera of clause 24, wherein the one or more coils are mounted on the multi-core organic substrate of the hybrid sensor shift platform.   Clause 26. The camera of clause 24, wherein the one or more magnets are mounted on the multi-core organic substrate of the hybrid sensor shift platform.   Clause 27. A device, comprising:
           one or more processors;   memory storing program instructions executable by the one or more processors to control operations of a camera; and   the camera, comprising:
               a lens group comprising one or more lens elements;   an image sensor;   an actuator to move the image sensor relative to the lens group; and   a hybrid sensor shift platform fixedly coupled with the image sensor such that the image sensor is movable together with the hybrid sensor shift platform, wherein the hybrid sensor shift platform comprises:
                   a ceramic substrate; and   a multi-core organic substrate attached to the ceramic substrate, wherein the multi-core organic substrate comprises:    3. a stack of layers, comprising:    a plurality of conductive layers formed of one or more conductive materials; and    a plurality of core layers formed one or more core materials.   
                   
               
           Clause 28. The device of clause 27, wherein:
           the plurality of conductive layers comprises:
               a first pair of conductive layers; and   a second pair of conductive layers; and   
               the plurality of core layers comprises:
               a first core layer sandwiched between the first pair of conductive layers; and   a second core layer sandwiched between the second pair of conductive layers.   
               
           Clause 29. The device of clause 27, wherein the stack of layers of the multi-core organic substrate further comprises:
           one or more prepreg layers formed of one or more prepreg materials.   
           Clause 30. The device of clause 27, wherein the ceramic substrate is configured to be fixedly coupled with the image sensor.   Clause 31. The device of clause 27, wherein:
           the stack of layers of the multi-core organic substrate further comprises:
               a plurality of prepreg layers formed of one or more prepreg materials; and   
               the plurality of conductive layers comprises:
               a first conductive layer sandwiched between a first prepreg layer of the plurality of prepreg layers and the first core layer; and   a second conductive layer sandwiched between a second prepreg layer of the plurality of prepreg layers and the second core layer.   
               
           Clause 32. The device of clause 27, wherein the camera further comprises:
           a flexure that suspends the hybrid sensor shift platform from a stationary structure of the camera and that allows motion of the hybrid sensor shift platform enabled by the actuator, wherein the flexure comprises:
               an inner frame fixedly coupled with the ceramic substrate;   an outer frame fixedly coupled with the stationary structure; and   one or more flexure arms that connect the inner frame with the outer frame.   
               
           Clause 33. The device of clause 32, wherein the actuator is configured to move the hybrid sensor shift platform in directions parallel to an image plane defined by the image sensor.   Clause 34. The device of clause 32, wherein the actuator is configured to move the hybrid sensor shift platform in at least one direction orthogonal to an image plane defined by the image sensor.       

     The methods described herein may be implemented in software, hardware, or a combination thereof, in different embodiments. In addition, the order of the blocks of the methods may be changed, and various elements may be added, reordered, combined, omitted, modified, etc. Various modifications and changes may be made as would be obvious to a person skilled in the art having the benefit of this disclosure. The various embodiments described herein are meant to be illustrative and not limiting. Many variations, modifications, additions, and improvements are possible. Accordingly, plural instances may be provided for components described herein as a single instance. Boundaries between various components, operations and data stores are somewhat arbitrary, and particular operations are illustrated in the context of specific illustrative configurations. Other allocations of functionality are envisioned and may fall within the scope of claims that follow. Finally, structures and functionality presented as discrete components in the example configurations may be implemented as a combined structure or component. These and other variations, modifications, additions, and improvements may fall within the scope of embodiments as defined in the claims that follow.

Metadata:
Filing Date: 20220407
Publication Date: 20240430
Grant Date: 20240430
Priority Date: 20210416
Inventors: PATEL, HIMESH
MURTHY, ROSHAN
Assignee: APPLE INC
CPC Classifications: [{"code": "H04N23/687", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N23/54", "inventive": true, "first": true, "tree": "[]"}, {"code": "G02B27/646", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B13/36", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N23/55", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N23/687", "inventive": true, "first": false, "tree": "[]"}, {"code": "H10K39/32", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B2205/0069", "inventive": false, "first": false, "tree": "[]"}, {"code": "H02K41/0354", "inventive": false, "first": false, "tree": "[]"}, {"code": "H04N23/54", "inventive": true, "first": true, "tree": "[]"}, {"code": "H02K41/0354", "inventive": false, "first": false, "tree": "[]"}, {"code": "G03B13/36", "inventive": true, "first": false, "tree": "[]"}, {"code": "G02B27/646", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N23/55", "inventive": true, "first": false, "tree": "[]"}, {"code": "H10K39/32", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B2205/0069", "inventive": false, "first": false, "tree": "[]"}, {"code": "H04N23/687", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N23/55", "inventive": true, "first": true, "tree": "[]"}, {"code": "H04N23/54", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B13/36", "inventive": true, "first": false, "tree": "[]"}, {"code": "G02B27/646", "inventive": true, "first": false, "tree": "[]"}, {"code": "G03B5/00", "inventive": true, "first": false, "tree": "[]"}, {"code": "H04N23/57", "inventive": true, "first": false, "tree": "[]"}]
Family ID: 90836088