Ultrasound oblique array and method of manufacturing the same

Abstract

An ultrasonic array and a method of manufacturing the same are provided. The method includes providing a piezoelectric material layer having a corresponding first side and a second side; cutting the piezoelectric material layer into a plurality of first vibrators and a plurality of second vibrators; providing a plurality of first leads and a plurality of second leads; coupling the plurality of first leads to the plurality of first vibrators adjacent to the first side; and coupling the plurality of second leads to the plurality of second vibrators adjacent to the second side. Each of the plurality of first vibrators and each of the plurality of second vibrators are adjacent. A cutting line between each of the first vibrators and each of the second vibrators intersects the first side, intersects the second side, and is not perpendicular to the first side or the second side.

Description

Technical Field

[0001] This invention relates to ultrasonic arrays, and more particularly to a method for manufacturing an ultrasonic oblique array capable of providing spatial information, and an ultrasonic oblique array. Background Technology

[0002] With the rapid advancements in medical technology, ultrasound detection technology has become increasingly sophisticated. Generally, ultrasound detection utilizes a probe that emits ultrasound signals to project these signals below the skin. Furthermore, the probe uses the reflected ultrasound signals to determine the shape and location of objects invisible to the naked eye beneath the skin for various medical applications.

[0003] Traditional ultrasonic transducers emit ultrasonic signals by using multiple piezoelectric devices to emit multiple ultrasonic beams, each beam corresponding to a scan line. The transducer can then receive the reflected ultrasonic signals from the corresponding scan lines for image recognition and object detection. In traditional ultrasonic transducers, the piezoelectric material is cut into multiple rectangular elements. For example, the piezoelectric material is cut into N single rows of elements, where N is a positive integer. However, N single rows of elements cannot obtain three-dimensional spatial information of the detected object. In other words, because traditional ultrasonic transducers cannot obtain three-dimensional spatial information of the detected object, the accuracy of locating its position needs improvement. Summary of the Invention

[0004] The purpose of this invention is to provide an ultrasonic oblique array and its manufacturing method to solve the above-mentioned problems.

[0005] Based on the above objectives, the present invention proposes a method for manufacturing an ultrasonic oblique array, comprising: providing a piezoelectric material layer having opposing first and second sides; cutting the piezoelectric material layer into a plurality of first elements and a plurality of second elements by means of a cutting line; providing a plurality of first leads and a plurality of second leads; coupling the plurality of first leads to the plurality of first elements at a position adjacent to the first side; and coupling the plurality of second leads to the plurality of second elements at a position adjacent to the second side; wherein each of the plurality of first elements is adjacent to each of the plurality of second elements, and the adjacent cutting lines are not parallel.

[0006] Preferably, the method further includes: cutting the piezoelectric material layer into multiple rectangular units using multiple vertical cutting lines, the vertical cutting lines being perpendicular to the first side; and generating a first oscillating element and a second oscillating element based on the first cutting line of each of the multiple rectangular units as a boundary; wherein the number of the multiple first oscillating elements and the multiple second oscillating elements is the same, one end of the first cutting line is located on the first side, the other end of the first cutting line is located on the second side, and the first cutting line is not perpendicular to the first side; wherein the cutting line includes the vertical cutting line and the first cutting line.

[0007] Preferably, the first cutting line is the diagonal of each rectangular unit.

[0008] Preferably, the method further includes: cutting the piezoelectric material layer into multiple rectangular units using multiple vertical cutting lines, the vertical cutting lines being perpendicular to the first side; setting a first weight and a second weight; dividing each of the multiple rectangular units according to the first weight and the second weight to generate a first oscillator and a second oscillator; wherein the first weight and the second weight are determined based on two areas, two side lengths, or the slopes of two adjacent cutting lines of the first oscillator and the second oscillator.

[0009] Preferably, the method further includes: cutting the piezoelectric material layer into a plurality of rectangular units by a plurality of vertical cutting lines, the vertical cutting lines being perpendicular to the first side; determining a plurality of second cutting lines; and dividing the piezoelectric material layer according to the plurality of second cutting lines, so that the piezoelectric material layer is divided into a plurality of first elements and a plurality of second elements; wherein the plurality of second cutting lines are not perpendicular to the first side, and each of the plurality of second cutting lines passes through at least two rectangular units; wherein the cutting line includes the vertical cutting line and the second cutting line.

[0010] Preferably, the plurality of first oscillating elements provide first-view information, the plurality of second oscillating elements provide second-view information, and the first-view information and the second-view information are used to integrate into three-dimensional spatial information.

[0011] Based on the above objectives, the present invention also proposes an ultrasonic oblique array, comprising: a piezoelectric material layer for transmitting and receiving ultrasonic signals, the piezoelectric material layer having opposing first and second sides; a plurality of first leads coupled to the first side of the piezoelectric material layer; and a plurality of second leads coupled to the second side of the piezoelectric material layer; wherein the piezoelectric material layer is cut into a plurality of first elements and a plurality of second elements by dicing lines, the plurality of first leads being coupled to the plurality of first elements at positions adjacent to the first side, the plurality of second leads being coupled to the plurality of second elements at positions adjacent to the second side, each of the plurality of first elements being adjacent to each of the plurality of second elements, and the adjacent dicing lines being non-parallel.

[0012] Preferably, the piezoelectric material layer is cut into multiple rectangular units by multiple vertical cutting lines, the vertical cutting lines being perpendicular to the first side and including the vertical cutting lines. According to a set first weight and a second weight, each of the multiple rectangular units is divided to generate a first oscillator and a second oscillator, and the first weight and the second weight are based on two areas, two side lengths, or the slopes of two adjacent cutting lines of the first oscillator and the second oscillator.

[0013] Preferably, the piezoelectric material layer is cut into multiple rectangular units by multiple vertical cutting lines, the vertical cutting lines being perpendicular to the first side; based on the first cutting line of each of the multiple rectangular units as a boundary, a first oscillator and a second oscillator are generated, the number of the multiple first oscillators and the multiple second oscillators are the same, one end of the first cutting line is located on the first side, the other end of the first cutting line is located on the second side, and the first cutting line is not perpendicular to the first side; wherein, the cutting line includes the vertical cutting line and the first cutting line.

[0014] Preferably, the piezoelectric material layer is cut into multiple rectangular units by multiple vertical cutting lines, the vertical cutting lines being perpendicular to the first side. After multiple second cutting lines on the piezoelectric material layer are determined, the piezoelectric material layer is divided into multiple first elements and multiple second elements according to the multiple second cutting lines. Each of the multiple second cutting lines passes through at least two rectangular units, and the multiple second cutting lines are not perpendicular to the first side. The cutting line includes the vertical cutting line and the second cutting line.

[0015] Preferably, the plurality of first oscillating elements provide first-view information, the plurality of second oscillating elements provide second-view information, and the first-view information and the second-view information are used to integrate into three-dimensional spatial information.

[0016] Compared with the prior art, the ultrasonic oblique array manufactured according to the present invention has multiple first and second elements. When detecting objects, it can mimic human binocular vision and generate information about the object in three-dimensional space from different perspectives, thereby enabling more accurate detection of the position of three-dimensional objects. Attached Figure Description

[0017] Figure 1 This is an architectural diagram of an embodiment of the ultrasonic oblique array system of the present invention.

[0018] Figure 2 for Figure 1 A schematic diagram of another embodiment of the ultrasonic oblique array system.

[0019] Figure 3 for Figure 1 A schematic diagram of another embodiment of the ultrasonic oblique array system.

[0020] Figure 4 for Figure 1 A schematic diagram of another embodiment of the ultrasonic oblique array system.

[0021] Figure 5 for Figure 1 A schematic diagram of an ultrasonic oblique array system in which the ultrasonic oblique array provides three-dimensional spatial information of an object using a first element and a second element.

[0022] Figure 6 for Figure 1 A flowchart of the manufacturing method of the ultrasonic oblique array in an ultrasonic oblique array system. Detailed Implementation

[0023] To provide a further understanding of the purpose, structure, features, and functions of this invention, detailed descriptions are provided below with reference to embodiments. Certain terms are used in the specification and claims to refer to specific elements. Those skilled in the art will understand that manufacturers may use different names to refer to the same element. This specification and claims do not distinguish elements based on differences in name, but rather on differences in function. The term "comprising" used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to."

[0024] In the description of this invention, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Figure 1This is an architectural diagram of an embodiment of the ultrasonic oblique array system 100 of the present invention. The ultrasonic oblique array system 100 includes an ultrasonic oblique array 11, a first processing device PC1, and a second processing device PC2. It should be understood that the first processing device PC1 and the second processing device PC2 can be two separate processing devices, such as two computers. The first processing device PC1 and the second processing device PC2 can also be integrated into a single processing device or operate in a multiplexing system mode. Any reasonable technical modifications fall within the scope disclosed in this invention. The ultrasonic oblique array 11 includes a piezoelectric material layer 10, a plurality of first leads LW1, and a plurality of second leads LW2. The piezoelectric material layer 10 can be rectangular. The piezoelectric material layer 10 has corresponding first sides S1 and second sides S2. The first side S1 can be parallel to the second side S2. The piezoelectric material layer 10 is used to transmit and receive ultrasonic signals. The plurality of first leads LW1 are coupled to the first side S1 of the piezoelectric material layer 10. Multiple second leads LW2 are coupled to the second side S2 of the piezoelectric material layer 10. The first leads LW1 and second leads LW2 can be flexible printed circuit boards (FPCs) or any conductive material. In the ultrasonic oblique array system 100, the piezoelectric material layer 10 can be cut into multiple first elements AE1 and multiple second elements AE2. The multiple first leads LW1 are coupled to the multiple first elements AE1 near the first side S1. The multiple second leads LW2 are coupled to the multiple second elements AE2 near the second side S2. Furthermore, as... Figure 1 As shown, each of the plurality of first elements AE1 is adjacent to each of the plurality of second elements AE2 (e.g., the elements of two triangles are adjacent by their hypotenuses). The cutting line between each first element AE1 and each second element AE2 is not perpendicular to the first side S1 or the second side S2. In other words, since the first side S1 is parallel to the second side S2, the cutting line between the first element AE1 and the second element AE2 (e.g., ...) is not perpendicular to either the first side S1 or the second side S2. Figure 1 The first cutting line CL1) will not form a right angle with the first side S1 or the second side S2.

[0026] like Figure 1As shown, the piezoelectric material layer 10 can be cut into multiple rectangular units using multiple vertical dividing lines. Therefore, the multiple rectangular units are arranged horizontally. Next, each of the multiple rectangular units can be divided using a first cutting line CL1 as a boundary to generate a first oscillator AE1 and a second oscillator AE2. Furthermore, since each rectangular unit corresponds to two oscillators (first oscillator AE1 and second oscillator AE2), M rectangular units can contain M first oscillators AE1 and M second oscillators AE2. M is a positive integer. The number of the multiple first oscillators AE1 and the multiple second oscillators AE2 is the same. One end of the first cutting line CL1 can be located on the first side S1. The other end of the first cutting line CL1 can be located on the second side S2. The first cutting line CL1 is not perpendicular to either the first side S1 or the second side S2. For example, in... Figure 1 In this context, the first cutting line CL1 can be the diagonal of each rectangular unit. In other words, Figure 1 The first element AE1 and the second element AE2 are triangular. The hypotenuses of the first element AE1 and the second element AE2 are adjacent. The sizes of the first element AE1 and the second element AE2 can be the same. However, the configuration of the first element AE1, the second element AE2, and the first cutting line CL1 in this invention is not... Figure 1 Limitations: Any reasonable configuration falls within the scope disclosed in this invention.

[0027] Figure 2 This is a schematic diagram of another embodiment of the ultrasonic oblique array 12 in the ultrasonic oblique array system 100. As mentioned above, the configuration of the elements and cutting lines of the ultrasonic oblique array system 100 can be customized. Figure 2 As shown, one end of the second cutting line CL2 can be located on the first side S1. The other end of the second cutting line CL2 can be located on the second side S2. The second cutting line CL2 is not perpendicular to either the first side S1 or the second side S2. However, in Figure 2 In this context, the second cutting line CL2 is not the diagonal of every rectangular unit. In other words, Figure 2 The first element AE1 and the second element AE2 are not triangular. However, it should be understood that although the first element AE1 and the second element AE2 are not triangular, they can still divide a single rectangular unit into two parts. Therefore, the first lead LW1 can be electrically connected to the first element AE1. The second lead LW2 can be electrically connected to the second element AE2. Furthermore, besides... Figure 1 as well as Figure 2In addition to the configuration of the ultrasonic oblique array, the ultrasonic oblique array system 100 can also introduce weights to divide the rectangular units. For example, after the piezoelectric material layer 10 is cut into multiple rectangular units by multiple vertical cutting lines, the ultrasonic oblique array system 100 can set a first weight and a second weight. The first weight and the second weight can correspond to the two areas of the first element AE1 and the second element AE2, the slopes of the two adjacent cutting lines, or the two side lengths, respectively. After the first weight and the second weight are set, each of the multiple rectangular units can be divided according to the first weight and the second weight to generate the first element AE1 and the second element AE2. In other words, after the ultrasonic oblique array system 100 also introduces weights, when cutting each of the multiple rectangular units, its two cutting areas, the slopes of the two cutting lines, or the side lengths of the two cutting elements can be customized. Furthermore, in other embodiments of the ultrasonic oblique array system 100, the multiple second cutting lines CL2 are not perpendicular to the first side S1 or the second side S2. Each of the plurality of second cutting lines CL2 passes through at least two rectangular units. In other words, in other embodiments, the number of first elements AE1 and second elements AE2 is not limited by the number of rectangular units. Since each of the plurality of second cutting lines CL2 passes through at least two rectangular units (e.g., ... Figure 4 As shown in the diagram, the long sides of the first element AE1 and the second element AE2 can span the width of two rectangular units. In other words, since the number of the first element AE1 and the second element AE2 is not limited by the number of rectangular units, the complexity of the ultrasonic oblique array system 100 can also be customized.

[0028] Figure 3 This is a schematic diagram of another embodiment of the ultrasonic oblique array 13 in the ultrasonic oblique array system 100. As mentioned above, the configuration of the elements and cutting lines of the ultrasonic oblique array system 100 can be customized. Figure 3 As shown, the slope of the third cutting line CL3 can be greater than that of the second cutting line CL2. The third cutting line CL3 is not perpendicular to either the first side S1 or the second side S2. Furthermore, in... Figure 3 In this context, the third cutting line CL3 is not the diagonal of every rectangular unit. In other words, Figure 3The first element AE1 and the second element AE2 are not triangular. The first element AE1 and the second element AE2 can also divide a single rectangular unit into two parts. Therefore, the first lead LW1 can be electrically connected to the first element AE1. The second lead LW2 can be electrically connected to the second element AE2. Furthermore, as mentioned above, the ultrasonic oblique array system 100 can also introduce weights to divide the rectangular unit. The weights can be defined as the two areas of the first element AE1 and the second element AE2, the slopes of two adjacent cutting lines, or the lengths of two sides. Therefore, compared to... Figure 2 , Figure 3 Because the slope of the third cleavage line CL3 is... Figure 2 The slope of the second cutting line CL2 is different, therefore Figure 3 The weights used are also the same as Figure 2 Different. In other words, with different weight settings, in addition to allowing the slopes of two adjacent cutting lines to differ, the shape of each rectangular unit divided into two regions can also be customized.

[0029] Figure 4 This is a schematic diagram of another embodiment of the ultrasonic oblique array 14 in the ultrasonic oblique array system 100. As mentioned above, the configuration of the elements and cutting lines of the ultrasonic oblique array system 100 can be customized. Figure 4 As shown, the fourth cutting line CL4 is not perpendicular to either the first side S1 or the second side S2. Furthermore, the fourth cutting line CL4 can span more than two rectangular units. Figure 4 In the process, the piezoelectric material layer 10, after being cut by multiple fourth cutting lines CL4, can be divided into multiple regions. For example, the uppermost rectangular unit can be divided into region R1, region R2, region R3, and region R4. Furthermore, after the uppermost rectangular unit is divided into region R1, region R2, region R3, and region R4 by multiple fourth cutting lines CL4, wires can be introduced to control different regions. For example, after region R1, region R2, region R3, and region R4 are divided, the uppermost second lead LW2 on the right can simultaneously control region R1 and region R2 using a wire crossing region R1 and region R2. Similarly, after region R1, region R2, region R3, and region R4 are divided, the uppermost first lead LW1 on the left can simultaneously control region R3 and region R4 using a wire crossing region R3 and region R4. In other words, in Figure 4In this system, by introducing a fourth cutting line CL4 and wires connecting different regions, regions R1 and R2 can be combined into a single oblique element because they can be controlled simultaneously. Similarly, regions R3 and R4 can be combined into a single oblique element because they can be controlled simultaneously. By introducing a fourth cutting line spanning two or more rectangular units and wires connecting different regions, the weight adjustment of the ultrasonic oblique array system 100 becomes more flexible.

[0030] Figure 5 This is a schematic diagram of an ultrasonic oblique array system 100, in which the ultrasonic oblique array 11 provides three-dimensional spatial information of an object using a first element and a second element. For example... Figure 5 As shown, the piezoelectric material layer 10 of the ultrasonic oblique array system 100 can be divided into multiple first elements AE1 and multiple second elements AE2. When the ultrasonic oblique array 11 detects an object Obj, the multiple first elements AE1 can provide first-view information. The multiple second elements AE2 can provide second-view information. The first-view information of the first elements AE1 can be transmitted through... Figure 1 The first processing unit PC1 analyzes the data. Similarly, the second-view information of the second element AE2 can be analyzed through... Figure 1 The second processing unit PC2 analyzes the data. Furthermore, the first-view information and the second-view information can be integrated into stereoscopic spatial information. In short, in the ultrasonic oblique array system 100, the piezoelectric material layer 10 can be divided into multiple first elements AE1 and multiple second elements AE2, and the multiple first elements AE1 and multiple second elements AE2 have different viewing angles. Therefore, when detecting an object Obj, the multiple first elements AE1 and multiple second elements AE2 can mimic human binocular vision, generating stereoscopic spatial information with different amounts of information from different viewing angles. Therefore, the ultrasonic oblique array system 100 can accurately detect the position of a stereoscopic object.

[0031] Figure 6 This is a flowchart illustrating the manufacturing method of the ultrasonic oblique array 11 in the ultrasonic oblique array system 100. The manufacturing method of the ultrasonic oblique array includes steps S601 to S605. Steps S601 to S605 are as follows:

[0032] Step S601: Provide a piezoelectric material layer 10 having corresponding first side S1 and second side S2;

[0033] Step S602: Cut the piezoelectric material layer 10 into multiple first elements AE1 and multiple second elements AE2;

[0034] Step S603: Provide multiple first leads LW1 and multiple second leads LW2;

[0035] Step S604: Couple the plurality of first leads LW1 to the plurality of first elements AE1 at a position adjacent to the first side S1;

[0036] Step S605: Couple the plurality of second leads LW2 to the plurality of second elements AE2 at a position adjacent to the second side S2.

[0037] The details of steps S601 to S605 have been described above and will not be repeated here. After the ultrasonic oblique array 11 in the ultrasonic oblique array system 100 is manufactured using steps S601 to S605, it incorporates two sets of oblique elements, each capable of detecting objects at different angles. Therefore, the ultrasonic oblique array system 100 can generate information about three-dimensional space, thereby increasing the accuracy of its detection of three-dimensional objects.

[0038] In summary, this invention describes a method for manufacturing an ultrasonic oblique array capable of providing spatial information, and an ultrasonic oblique array itself. The ultrasonic oblique array can be made of a piezoelectric material layer. After the piezoelectric material layer is divided into multiple rectangular regions, each rectangular region can be further divided using cutting lines that are not perpendicular to the two sides of the rectangular region to generate multiple first elements and multiple second elements. Furthermore, these multiple first elements and multiple second elements can be arranged in an interleaved manner. Therefore, when detecting objects, the multiple first elements and multiple second elements in the ultrasonic oblique array can mimic human binocular vision, generating three-dimensional spatial information with different levels of information from different perspectives. Thus, the position of three-dimensional objects can be accurately detected.

[0039] The present invention has been described in the above-described embodiments; however, these embodiments are merely examples for implementing the present invention. It must be noted that the disclosed embodiments do not limit the scope of the present invention. Conversely, any modifications and refinements made without departing from the spirit and scope of the present invention are within the scope of patent protection of the present invention.

Claims

1. A method for manufacturing an ultrasonic oblique array, characterized in that, Include: A piezoelectric material layer is provided, the piezoelectric material layer having opposing first and second sides; The piezoelectric material layer is cut into multiple rectangular units by multiple vertical cutting lines, which are perpendicular to the first side; multiple first elements and multiple second elements are generated based on another cutting line of each of the multiple rectangular units as the boundary; Provides multiple first leads and multiple second leads; The plurality of first leads are coupled to the plurality of first oscillating elements at a position adjacent to the first side; and The plurality of second leads are coupled to the plurality of second oscillating elements at a position adjacent to the second side; In this configuration, each of the plurality of first elements is adjacent to each of the plurality of second elements, and the other cutting line is neither parallel nor perpendicular to the adjacent vertical cutting line.

2. The method as described in claim 1, characterized in that, Also includes: Based on the first cutting line of each of the plurality of rectangular elements as the boundary, a first oscillating element and a second oscillating element are generated. The number of the plurality of first oscillators and the plurality of second oscillators are the same. One end of the first cutting line is located on the first side, and the other end of the first cutting line is located on the second side. The first cutting line is not perpendicular to the first side.

3. The method as described in claim 2, characterized in that, The first cutting line is the diagonal of each rectangular unit.

4. The method as described in claim 1, characterized in that, Also includes: The piezoelectric material layer is cut into multiple rectangular units by multiple vertical cutting lines, which are perpendicular to the first side. Set the first weight and the second weight; Based on the first weight and the second weight, each of the plurality of rectangular elements is divided to generate a first oscillator and a second oscillator; The first weight and the second weight are determined based on the two areas, two side lengths, or the slopes of two adjacent cutting lines of the first oscillator and the second oscillator.

5. The method as described in claim 1, characterized in that, Also includes: Determine multiple second cutting lines; and The piezoelectric material layer is divided according to the multiple second cutting lines, so that the piezoelectric material layer is divided into the multiple first elements and the multiple second elements; The plurality of second cutting lines are not perpendicular to the first side, and each of the plurality of second cutting lines passes through at least two rectangular units.

6. The method as described in claim 1, characterized in that, The multiple first-view elements provide first-view information, the multiple second-view elements provide second-view information, and the first-view information and the second-view information are used to integrate into three-dimensional spatial information.

7. An ultrasonic oblique array, characterized in that, Include: A piezoelectric material layer for transmitting and receiving ultrasonic signals, the piezoelectric material layer having opposing first and second sides; Multiple first leads are coupled to the first side of the piezoelectric material layer; and Multiple second leads are coupled to the second side of the piezoelectric material layer; The piezoelectric material layer is cut into multiple first elements and multiple second elements by a cutting line. The multiple first leads are coupled to the multiple first elements at a position near the first side, and the multiple second leads are coupled to the multiple second elements at a position near the second side. Each of the multiple first elements is adjacent to each of the multiple second elements, and the adjacent cutting lines are not parallel.

8. The ultrasonic oblique array as described in claim 7, characterized in that, The piezoelectric material layer is cut into multiple rectangular units by multiple vertical cutting lines. The vertical cutting lines are perpendicular to the first side and include the vertical cutting lines. According to the set first weight and second weight, each of the multiple rectangular units is divided to generate a first oscillator and a second oscillator. The first weight and the second weight are based on the two areas, two side lengths or the slopes of two adjacent cutting lines of the first oscillator and the second oscillator.

9. The ultrasonic oblique array as described in claim 7, characterized in that, The piezoelectric material layer is cut into multiple rectangular units by multiple vertical cutting lines, which are perpendicular to the first side. Based on the first cutting line of each rectangular unit, a first oscillator and a second oscillator are generated. The number of the multiple first oscillators and the multiple second oscillators are the same. One end of the first cutting line is located on the first side, and the other end of the first cutting line is located on the second side. The first cutting line is not perpendicular to the first side. The cutting line includes the vertical cutting line and the first cutting line.

10. The ultrasonic oblique array as described in claim 7, characterized in that, The piezoelectric material layer is cut into multiple rectangular units by multiple vertical cutting lines, which are perpendicular to the first side. After multiple second cutting lines are determined on the piezoelectric material layer, the piezoelectric material layer is divided into multiple first elements and multiple second elements according to the multiple second cutting lines. Each of the multiple second cutting lines passes through at least two rectangular units, and the multiple second cutting lines are not perpendicular to the first side. The cutting line includes the vertical cutting line and the second cutting line.

11. The ultrasonic oblique array as described in claim 7, characterized in that, The multiple first-view elements provide first-view information, the multiple second-view elements provide second-view information, and the first-view information and the second-view information are used to integrate into three-dimensional spatial information.

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