TWI830673B - Positioning device for wafer - Google Patents

Abstract

The invention provides a wafer robot arm, which includes a base part, a first arm part, a second arm part, a wafer arranging part and a control part. The first arm part is rotatably arranged on the base. On one side of the first arm part, the second arm part is rotatably disposed on the other side of the first arm part, wherein the components of the first arm part and the second arm part do not at least partially overlap, and the The wafer placement part is rotatably provided on the other side of the second arm part, and the wafer placement part is used to fix the wafer. The control part is electrically connected to the base part and the first arm respectively. part and the second arm part, so that at least one of the base part, the first arm part and the second arm part can electrically receive a movement signal generated by the control part to generate movement.

Description

Wafer robotic arm

The present invention relates to wafer robot arm technology.

In particular, it refers to a wafer robot arm that can be used to change the position and angle of the wafer according to actual needs to process 300mm wafer sizes.

It should be noted in advance that the prior art described below is to help understand the theory of the present invention and is not focused on describing the prior art.

The existing MEIS (Medium Energy Ion Scattering) is a sample analysis technology that irradiates ions in the medium energy field onto the sample to be tested (or workpiece, target, etc.) and then analyzes it; MEIS is a sample analysis technology that irradiates ions with specific energy. After ions (for example: helium ions of about 100 KeV) are irradiated on the sample, the ions will be scattered through the nuclei of the sample to be measured and reduce their energy depending on the type and depth of the colliding nuclei. Then, after precise analysis, A way to find out the basic characteristics of the sample to be tested.

However, in the existing MEIS method, when ions are injected into the sample to be measured, or when the injected ions are scattered, some ions will have a neutralization reaction and need to be adjusted through the equation. The degree of neutralization will depend on the structure of the sample to be measured. Due to differences in structure and composition, the accuracy of analysis is limited. Therefore, the TOF-MEIS method, which is an improved MEIS method, has recently attracted much attention.

TOF-MEIS is the abbreviation of Time-Of-Flight Medium Energy Ion Scattering, which is the drift time (or flight time) of scattered medium energy ions. It is based on the "drift time (or flight time) of medium energy ions in the scattering spectrum". "Time-Of-Flight Medium Energy Ion Scattering" analysis method, and the neutralized particles can also be detected by the detector at the same time based on the elastic collision energy and the law of conservation of momentum, that is, the neutralized particles can be detected by the detector at the same time. The measured drift time (or flight time) of scattered ions is used as a method to analyze the scattered energy. This TOF-MEIS method can not only measure the entire energy spectrum at the same time, but also does not need to distinguish the scattered ion energy domain. The use of equations, etc. is more efficient than the existing MEIS method, and its advantage is more accurate analysis of the sample to be tested. Therefore, expectations for the TOF-MEIS method are getting higher and higher.

In addition, the sample to be tested will have inherent crystallinity depending on its type. When ions are irradiated from a specific direction, the yield will become higher or lower. To solve this phenomenon, it is necessary to change the angle of irradiation of ions or continuously Ions can only be irradiated after changing the position of the sample to be measured.

Usually when analyzing through this TOF-MEIS, the corresponding wafer form is a small sample to be tested. When the sample to be tested is fixed for analysis, a small robotic arm is also made. In this way, the reaction chamber can also Made to be smaller.

However, if the size of the sample to be tested is very large, in order for the ion beam to irradiate the entire area of the sample to be tested, a large reaction chamber must be manufactured. In this way, in order to maintain a certain degree of vacuum in the entire cavity to be tested, Its cost will also increase significantly; in addition, it is relatively difficult to manufacture a large-scale robotic arm that is large enough to handle the samples to be tested.

In addition, when the position of the sample to be tested is changed, the robotic arm used to fix the sample cannot operate smoothly, and the robotic arms that move the sample to be tested will also become entangled, causing interference problems.

The problem to be solved by the present invention is how to use the wafer robot arm in an embodiment disclosed by the present invention to move the sample (or wafer) in a multi-axis manner when the size of the sample (or wafer) to be tested is large, and How to apply it to a small wafer robot arm.

In addition, how to use the wafer robot arm in an embodiment disclosed in the present invention to change the position, angle and inclination of the sample to be tested without causing interference.

The technical means to solve the aforementioned problems of the present invention is that according to an embodiment of the present invention, a wafer robot arm includes a base part, a first arm part, a second arm part, and a wafer placement part. and a control part, one end of the first arm part is rotatably pivoted on one side of the base part, one end of the second arm part is rotatably pivoted on the other end of the first arm part, and There will be no partial overlap between the first arm part and the second arm part. The wafer arranging part is rotatably pivoted at the other end of the second arm part, and the wafer arranging part is Used to carry a wafer, the control part is electrically connected to the base part, the first arm part and the second arm part respectively, so that the base part, the first arm part and the second arm part are At least one of them can electrically receive a movement signal generated by the control unit to generate movement.

Wherein, the first arm part further includes a first arm and a first rotation unit disposed on one side of the first arm. The first arm system has a predetermined length and is defined as a first length. ; Wherein, the second arm part further includes a second arm and a second rotating unit, and one side of the second arm of the second arm part is connected to the first rotating unit of the first arm part. , the second rotating unit is provided on the opposite side of the second arm, and the second arm has a predetermined length and is defined as a second length.

Wherein, the wafer robot arm further includes an ion beam irradiator, and the wafer placement part has an imaginary center point; wherein, the wafer is irradiated from the ion beam irradiator relative to the wafer placement part The position is defined as a reference position; wherein, the length distance from the reference position to the wafer placement portion is defined as an interval length.

Wherein, the distance from one side of the first arm of the first arm part to the reference position is defined as an imaginary length; wherein, the sum of the first length and the second length is defined as is a first value, the sum of the interval length and the imaginary length is defined as a second value, and the difference obtained by subtracting the first value and the second value is a positive number.

Wherein, the sum of the first length and the imaginary length is defined as a third value, the sum of the second length and the interval length is defined as a fourth value, and the third value and the third value are defined as a fourth value. The difference obtained after subtracting the four values is a positive number.

Wherein, the wafer robot arm further includes a self-rotating unit and is connected to the other side of the base part, so that the base part can tilt and rotate through the self-rotating unit.

Wherein, the wafer robot arm further includes a height adjustment unit and is connected to the other side of the base part, so that the height of the base part can be adjusted through the height adjustment unit.

Wherein, the angle of the first rotation unit of the first arm is from -90 degrees to +90 degrees.

Wherein, the wafer arranging part generates static electricity to attract the wafer to fix the wafer.

The effect of the present invention compared with the prior art is that according to the wafer robot arm in one embodiment disclosed in the present invention, the wafer to be tested can be moved or rotated to various directions, and its volume can also be determined according to the size of the actual wafer to be tested. Customized into small size.

In addition, according to the foregoing disclosure of the present invention, there are components between the wafer robot arm and its sub-components that meet the set conditions at startup. Therefore, when changing the position of the wafer, there will be no interference between the components. phenomenon.

The present invention can have various transformations and various implementation modes. Therefore, each specific embodiment of the present invention is described in detail; however, this is not intended to limit the present invention to this specific embodiment, and it is hoped that it can be understood as The present invention includes the aforementioned specific embodiments and all transformations, equivalents, or substitutions within the scope of the spirit and technical characteristics of the present invention.

The vocabulary used in each embodiment of the present invention is only used to describe each specific embodiment, and is not used to limit the patentable scope of the present invention. Furthermore, expressions in the singular number will be understood from the preceding and following paragraphs and shall include the plural unless otherwise stated. In various embodiments of the present invention or in the scope of the patent application, when words such as "include" or "have" appear, they only refer to the features, numbers, steps, actions, etc. described in the patent specification of the present invention. The existence of constituent elements, components or combinations is not used to exclude the possibility of the existence or addition of one or more different technical features, numbers, steps, actions, constituent elements, components or combinations thereof.

Thereafter, various specific embodiments of the present invention will be described in detail with reference to the accompanying drawings, and the same components in the drawings will be labeled with the same symbols as much as possible; in addition, this will make the gist of the present invention unclear. Relevant descriptions of known functions and compositions will be omitted first. Similarly, if some components may be exaggerated in the drawings, they will be omitted or supplemented with schematic labels and will be described first.

Please refer to FIG. 1 first, which is a schematic side view of an embodiment of the present invention.

A wafer robot arm disclosed in this embodiment of the present invention includes a base part 100 disposed in a reaction chamber 10, a first arm part 200, a second arm part 300, and a wafer robot arm. A circle arrangement part 400 and a control part 500. In addition, a wafer robot arm disclosed in this embodiment of the present invention further includes a self-rotating unit 600 , a height adjustment unit 700 and a horizontal adjustment unit 800 disposed outside the reaction chamber 10 . Among them, the control part 500 of the wafer robot arm is electrically connected to and electrically controlled by the base part 100, the first arm part 200, the second arm part 300, the wafer placement part 400, The self-rotating unit 600, the height adjustment unit 700 and the horizontal adjustment unit 800.

In this embodiment, the base portion 100 of the wafer robot arm serves as a skeleton to support the entirety, and the base portion 100 further includes a base arm 110 and a base rotation unit 120 .

Since the base arm 110 of the base part 100 of the wafer robot arm is disposed penetrating the inside and outside of the reaction chamber 10, a part of the base arm 110 of the base part 100 is located in the reaction chamber 10. The other part is located outside the reaction chamber 10 .

Please refer to FIG. 1 again. It is ideal that at least one side of the base arm 110 of the base portion 100 of the wafer robot arm is flat. In this embodiment, the top of the base arm 110 of the base portion 100 is flat. In this way, the first arm 200 and other components can be disposed on the flat surface of the base arm 110 .

As mentioned above, the base rotation unit 120 of the base part 100 of the wafer robot arm is rotatably pivoted at one end of the base arm 110, and the base rotation unit 120 will continue to be described in the following paragraphs. The wafer or the sample to be tested fixed on the wafer arrangement part 400 cooperates with the operation. As shown in FIG. 1 , the base rotation unit 120 can be pivoted to a position biased toward the right side of the base arm 110 , and the base rotation unit 120 can rotate according to a predetermined angle. In this embodiment, , the base rotating unit 120 can rotate at an angle of about 180 degrees, that is, when the base rotating unit 120 is used as a reference at an angle of 0 degrees, it can rotate from -90 degrees to +90 degrees.

As mentioned above, the first arm part 200 of the wafer robot arm is rotatably pivoted on one side of the base part 100. Preferably, the first arm part 200 is connectable to the base part 100. The base rotation unit 120 is configured such that the first arm 200 can rotate along with the rotation of the base rotation unit 120 . In addition, the first arm part 200 of the wafer robot arm further includes a first arm 210 and a first rotation unit 220.

As mentioned above, the first arm 210 of the first arm part 200 is also like the base arm 110 of the base part 100. At least one side is flat (for example: the upper side). In this way, when the wafer When the second arm part 300 of the robot arm is disposed on the flat surface above the first arm 210 of the first arm part 200, it can have the effect of strengthening the support of the second arm part 300.

As mentioned above, the first arm 210 of the first arm 200 has a predetermined length, and assuming that the predetermined length of the first arm 210 is the first length, in this embodiment, the first arm 210 has a predetermined length. The first length of 210 is about 150mm. In addition, the description of the first length of the first arm 210 will be provided in subsequent paragraphs in conjunction with FIG. 2 to assist explanation.

As mentioned above, the first rotation unit 220 of the first arm part 200 of the wafer robot arm is disposed on the other side of the first arm 210. In this embodiment, the first arm part 200 The first rotation unit 220 may also be, as shown in FIG. 1 , disposed diagonally on another side of the first arm 210 of the first arm part 200 with the base rotation unit 120 of the base part 100 as a reference. side, instead of being disposed in the same axial direction corresponding to the base rotation unit 120 of the base portion 100 , in short, the first rotation unit 220 of the first arm portion 200 can be disposed on the first arm portion 200 one end. In addition, in this embodiment, the first rotating unit 220 of the first arm 200 can rotate at an angle of approximately 180 degrees. That is, when the first rotating unit 220 of the first arm 200 is rotated at an angle of 0 degrees, When used as a reference, it can be rotated from -90 degrees to +90 degrees.

As mentioned above, the second arm part 300 of the wafer robot arm is rotatably pivoted on one side of the first arm part 200. Preferably, the second arm part 300 is connected to the first arm part 200. The first rotation unit 220 of the arm 200 is configured such that the second arm 300 can rotate along with the rotation of the first rotation unit 220. In addition, the second arm part 300 of the wafer robot arm further includes a second arm 310 and a second rotation unit 320.

As mentioned above, similarly, the second arm 310 of the second arm part 300 of the wafer robot arm is the same as the first arm 210 of the first arm part 200, at least one side is flat, so that Next, the wafer placement portion 400 disclosed in the subsequent paragraphs can be disposed on the flat surface of the second arm 310 of the second arm portion 300 . And because the lower part of the second arm 310 of the second arm part 300 is connected to the position of the first rotation unit 220 of the first arm part 200, the second arm 310 of the second arm part 300 can be The first rotating unit 220 rotates accordingly.

As mentioned above, the second arm 310 of the second arm 300 has a predetermined length, and it is assumed that the predetermined length of the second arm 310 is the second length, wherein the second arm 310 of the second arm 300 has a predetermined length. The length of the arm 310 is different from the length of the first arm 210 of the first arm 200 because when the length of the first arm 210 and the second arm 310 are the same, they will operate to a A singularity position will be generated when the predetermined position is reached. Therefore, in this embodiment, the second arm 310 and the first arm 210 are assumed to be of different lengths. Preferably, the length of the second arm 310 is The length may be slightly smaller than the length of the first arm 210 . In addition, the second length of the second arm 310 will be described in detail with reference to FIG. 2 in subsequent paragraphs.

As mentioned above, the second rotation unit 320 of the second arm part 300 of the wafer robotic arm is disposed on one side of the second arm 310. In this embodiment, the second rotation unit 320 of the second arm part 300 is The rotation unit 320 can also be, as shown in FIG. 1 , a section of the second arm 310 of the second arm 300 that is disposed in a diagonal direction with the first rotation unit 220 of the first arm 200 as a reference. side, rather than in the same axial direction corresponding to the first rotation unit 220 of the first arm 200 . In addition, in this embodiment, the second rotating unit 320 of the second arm 300 is different from the first rotating unit 220 of the first arm 200, that is, the second rotating unit 320 of the second arm 300 is Can rotate 360 degrees. It is worth mentioning that due to the arrangement of the base rotation unit 120 of the base part 100, the first rotation unit 220 of the first arm part 200, and the second rotation unit 320 of the second arm part 300, It is in a Z-shape, so its movement range is expected to be increased, and it can be adapted to large-size wafers to carry out large-scale displacement movements.

As mentioned above, the wafer placement part 400 of the wafer robotic arm is rotatably pivoted on one side or above the second arm part 300. Preferably, the wafer placement part 400 can be connected to the second arm part 300. The second rotation unit 320 of the second arm part 300 allows the wafer placement part 400 to rotate 360 degrees along with the second rotation unit 320 of the second arm part 300.

As mentioned above, one side or the upper side of the wafer placement part 400 of the wafer robot arm is flat, so that the wafer or the sample to be tested can be loaded and placed in the wafer placement part 400 In addition, the wafer placement part 400 can generate adsorption static electricity to fix the wafer, and can also place adhesive materials or components to strengthen the fixation of the wafer. Preferably, adhesive materials or components can be placed to strengthen the fixation of the wafer. Materials or components are arranged around the flat surface of the wafer along the wafer arrangement portion 400 .

As mentioned above, the self-rotating unit 600 of the wafer robot arm is connected to the other side of the base part 100 or above it. That is, as shown in FIG. 1, the self-rotating unit 600 is connected to the base part 100. The position of the left end of the base arm 110, and the self-rotating unit 600 can rotate according to a predetermined angle. In this embodiment, the self-rotating unit 600 takes the base arm 110 of the base part 100 as the assumed axis. and exhibits radial rotation. Therefore, the base arm 110 of the base portion 100 exhibits tilt rotation along with the self-rotating unit 600. In this way, the wafer arranged in the wafer arrangement portion 400 will eventually be The rounded angle then appears tilted. It is worth mentioning that when the self-rotating unit 600 is set at an angle of 0 degrees as a reference, the ideal rotation angle can be approximately from -10 degrees to +70 degrees.

As mentioned above, the height adjustment unit 700 of the wafer robot arm is connected to the other side of the base part 100 or below it. That is, as shown in FIG. 1, the height adjustment unit 700 is connected to the base part 100. The position below the left side of the base arm 110 is spaced apart from the self-rotating unit 600. The height adjustment unit 700 is used to adjust the height of the base part 100. Preferably, the height adjustment unit 700 can adjust the base part 100. The height adjustment of the base arm 110 of 100 is to adjust the distance between the ion beam irradiator and the wafer or sample to be tested (not shown in the figure).

As mentioned above, the level adjustment unit 800 of the wafer robot arm is connected to the other side of the base part 100 or above it. That is, as shown in FIG. 1 , the level adjustment unit 800 can be disposed at the base of the base part 100 The position above the left side of the arm 110 is spaced apart from the self-rotating unit 600. The horizontal adjustment unit 800 is used to adjust the base 100 to move in a horizontal direction. In this embodiment, the horizontal direction refers to the height. The directions are cross directions. Therefore, with the operation of the horizontal adjustment unit 800, the horizontal position of the base arm 110 of the base part 100 in the reaction chamber 10 will change, thereby causing the wafer and the ion beam irradiator to change. The corresponding positions between the two will also change.

As mentioned above, the self-rotating unit 600, the height adjustment unit 700, and the horizontal adjustment unit 800 of the wafer robotic arm disclosed in the present invention are all located outside the reaction chamber 10, so that the inside of the reaction chamber 10 can be continuously The vacuum state is maintained and the position of the base portion 100 serving as a base can be changed, thereby increasing the accuracy of the measurement experiment and changing the position of the wafer or sample to be measured in the reaction chamber 10 in various ways.

As mentioned above, the control part 500 of the wafer robot arm can electrically match a movement signal and use it to electrically activate the base part 100, the first arm part 200 and the second arm part 300, and further Preferably, the control part 500 can also electrically match another movement signal and use it to electrically activate the base rotation unit 120 of the base part 100, the first rotation unit 220 of the first arm part 200, and the second arm. The second rotation unit 320 of the part 300.

In this embodiment, the control part 500 can also electrically match another movement signal and use it to electrically activate the self-rotating unit 600, the height adjustment unit 700 and the horizontal adjustment unit 800, thereby changing the base part 100 position and angle.

In addition, the control unit 500 may first electrically match another moving signal and electrically activate the self-rotating unit 600, the height adjustment unit 700 and the horizontal adjustment unit 800 to adjust and set the After determining the position and angle of the base part 100, another movement signal is electrically matched and used to electrically activate the base part 100, the first arm part 200 and the second arm part 300.

In this embodiment, the wafer robot arm disclosed in the present invention is configured according to the setting conditions of the first arm part 200 and the second arm part 300 and other components. Therefore, compared with the previous Technology, through the operation process of the wafer robot arm disclosed in the present invention, its respective components will not interfere with each other.

Please refer to FIG. 2 again, which is a schematic top view of some components of the wafer robot arm according to the embodiment of the present invention.

Through FIG. 2, the vocabulary is used to clearly define each sub-component of the wafer robot arm disclosed in the embodiment of the present invention.

The wafer robotic arm disclosed in the embodiment of the present invention is mainly composed of the defined first length, the second length, the interval length and the imaginary length, and there may be no interference with each other during operation.

The first length defined by the wafer robot arm disclosed in the embodiment of the present invention refers to the length of the first arm part 200. To be precise, it is defined from the base rotation unit 120 of the base part 100 to the first length. The length distance between the first rotating unit 220 of the arm part 200, as shown in Figure 2, can be clearly based on the first arm 210 of the first arm part 200, and the base of the base part 100 The rotating unit 120 and the first rotating unit 220 of the first arm part 200 are spaced apart from each other and are arranged at opposite ends of the first arm 210 of the first arm part 200. Therefore, the embodiment of the present invention is The first length defined by the disclosed wafer robot arm can be inferred as the length distance between the base rotation unit 120 of the base part 100 and the first rotation unit 220 of the first arm part 200 .

The second length defined by the wafer robot arm disclosed in the embodiment of the present invention refers to the length of the second arm 300, and the second length is defined in a manner similar to the first length and is defined from the The length distance between the first rotation unit 220 of the first arm 200 and the second rotation unit 320 of the second arm 300 is, as shown in Figure 2, the first rotation of the first arm 200. The unit 220 and the second rotating unit 320 of the second arm 300 also use the second arm 310 of the second arm 300 as a reference, so that the first rotating unit 220 of the first arm 200 and the second arm The two components of the second rotation unit 320 of the second arm part 300 are spaced apart from each other and are arranged at opposite ends of the second arm 310 of the second arm part 300. Therefore, the wafer robot arm disclosed in the embodiment of the present invention is defined by The second length can be estimated as the length distance between the first rotation unit 220 of the first arm 200 and the second rotation unit 320 of the second arm 300 .

The defined interval length of the wafer robot arm disclosed in the embodiment of the present invention defines the length between a reference position and the second rotation unit 320 of the second arm 300. Therefore, when defining the interval length Before that, it is necessary to understand and define the reference position first, so the reference position will be defined and explained later.

As mentioned above, the reference position can be defined as the position between the wafer or the sample to be tested and the ion beam irradiator. The ion beam irradiator will irradiate the ion beam based on a focusing point, and the reference position can be Refers to the position where the ion beam is generated by the ion beam irradiator and irradiates the wafer or the sample to be tested, and then the reference position is assumed to be a focus point. Therefore, the distance between the wafer robot arms disclosed in the embodiment of the present invention is defined by the length. It is assumed that the linear length distance between this reference position and the second rotation unit 320 of the second arm 300 is assumed. It is worth mentioning that when the wafer arranging part 400 has an imaginary center point position, at this time, the distance defined by the wafer robot arm disclosed in the embodiment of the present invention is assumed to be from the reference position to the imaginary center point. The linear length distance between the two virtual center points of the wafer arrangement part 400.

Finally, the imaginary length defined by the wafer robot arm disclosed in the embodiment of the present invention is from the reference position disclosed above to the base portion disposed below the first arm 210 side of the first arm portion 200 The length distance between the base rotation unit 100 and the base rotation unit 120, as shown in Figure 2, can clearly identify the imaginary length.

3 is a flow chart of the wafer robot arm disclosed in the present invention, which mainly includes the base part, the first arm part, the second arm part, the wafer placement part and other components of the wafer robot arm. The values defined in the time are used as a set condition flow chart that needs to be met during operation.

FIG. 4 is another flow chart of the wafer robot arm disclosed in the present invention, which mainly includes the base part, the first arm part, the second arm part, the wafer placement part and other components of the wafer robot arm. The values defined between are used as another set condition flow chart that needs to be met during operation.

FIG. 5 is a schematic diagram of the hypothetical operation of some components similar to the aforementioned FIG. 2 , and mainly discloses the operating state of the wafer robot arm of the present invention after meeting the set conditions.

The wafer robot arm disclosed in the embodiment of the present invention is mainly composed of the first length, the second length, the interval length and the imaginary length as defined and illustrated in FIG. 2 .

Please refer to the calculation method of Figure 3 again, which can be based on a set condition, that is, the difference obtained by subtracting a second value from a first value, and the difference must be a positive number.

As mentioned above, the first value is defined as the sum of the first length and the second length (ie, first value = first length + second length).

As mentioned above, the second value is defined as the sum of the interval length and the imaginary length (that is, the second value = interval length + imaginary length).

As mentioned above, when performing calculations, when the first value and the second value are subtracted, the resulting difference (first value - second value) must be a positive number to comply with The mechanical conditions between the sub-components of the wafer robotic arm disclosed by the present invention can further achieve the goal of preventing interference between the sub-components during operation.

Referring again to the calculation method in Figure 4, we can clearly obtain another setting condition, which is the difference obtained by subtracting a fourth value from a third value, and the value must be a positive number.

As mentioned above, the third value is defined as the sum of the first length and the imaginary length (that is, the third value = first length + imaginary length).

As mentioned above, the fourth value is defined as the sum of the second length and the interval length (that is, the fourth value = the second length + the interval length).

As mentioned above, when performing calculations, when the third value and the fourth value are subtracted, the resulting difference (third value - fourth value) must be a positive number. It is considered to be in compliance with the mechanical conditions between the sub-components of the wafer robot arm disclosed in the present invention.

As mentioned above, the wafer robot arm disclosed in the present invention complies with the setting conditions defined and illustrated in FIGS. 3 and 4 , and can be used to set the length of each sub-component, thereby achieving the mutual alignment of each sub-component. There is no interference during operation.

Please refer to Figure 5 again, which is a schematic diagram of the hypothetical operation of some components similar to Figure 2, mainly revealing the operating status of a part of the wafer robotic arm after meeting the set conditions.

The present invention will be further described in detail through Figure 5 as follows.

As shown in Figure 5, the wafer robot arm disclosed in the embodiment of the present invention is mainly composed of the first length, the second length, the interval length, and the imaginary length defined and illustrated in Figure 2 (please include them together). See Figure 2). The wafer robot arm disclosed in the embodiment of the present invention can further define the first value, the second value, the third value, the fourth value and other numerical states through the above-mentioned lengths to coordinate the operation.

As mentioned above, if the numerical result of the first value minus the second value is not a positive number, it is necessary to try to make it a positive number, that is, by adjusting the base part 100, the first arm part 200 and the third The respective lengths of the two arm portions 300 are such that the first value minus the second value (or difference) results in a positive number.

As mentioned above, similarly, the numerical value subtracted from the third value and the fourth value must also be a positive number. If the setting condition is not met, the base part 100 and the first arm part 200 can also be adjusted. and the individual length of the second arm 300 so that the third value minus the fourth value (or difference) becomes a positive number.

As mentioned above, when the sub-components of the wafer robotic arm disclosed in the present invention meet the setting conditions disclosed above, it can be determined that there will be no interference between the sub-components during operation.

In addition, please refer to FIG. 1 again. When the wafer robot arm disclosed in the present invention is powered off, since the control unit 500 is equipped with a technical feature of reset (Reset), in this way, it will be able to be reset by Electrically activate the reset setting (Reset) of the control unit 500 so that each sub-component of the wafer robot arm can move and return to the initial position. Preferably, it can also be electrically matched and controlled electrically. The base rotation unit 120 of the base part 100, the first rotation unit 220 of the first arm part 200, the second rotation unit 320 of the second arm part 300, the self-rotation unit 600, the height adjustment unit 700 and the level Adjusting the technical features of each movement signal of the unit 800 can make it easier to return each sub-component of the wafer robot arm to its initial position before receiving each movement signal.

The above is a detailed description through the embodiments disclosed by the present invention. The detailed structure, characteristics, assembly or use, manufacturing, etc. of the present invention have been clearly described in the foregoing detailed description of the embodiments. However, in the field of the present invention, Those with ordinary knowledge should be able to understand that these detailed descriptions and the examples enumerated for the present invention are only used to support the description of how the present invention can be implemented, and are not intended to limit the patentable scope of the present invention; in addition, the invention can be applied for From the patentable scope of the present invention, it is easy to imagine that without deviating from the technical characteristics of the present invention, through simple addition, change, deletion or addition of components, etc., of course, it should also fall within the scope of the patentable scope of the present invention.

10:Reaction chamber 100: Base part 110: Base arm 120: Base rotation unit 200:First arm 210:First arm 220: First rotating unit 300:Second arm 310:Second arm 320: Second rotating unit 400: Wafer Arrangement Department 500:Control unit 600: Self-rotating unit 700: Height adjustment unit 800: Horizontal adjustment unit

FIG. 1 is a schematic side view of an embodiment of the present invention, mainly revealing the overall structure of a wafer robot arm. FIG. 2 is a schematic top view of some components of FIG. 1 , mainly revealing some components and operation diagrams of the wafer robotic arm. 3 is a flow chart of the wafer robot arm disclosed in the present invention, which mainly includes a base part, a first arm part, a second arm part and a wafer placement part of the wafer robot arm. The values defined in the time are used as a set condition flow chart that needs to be met during operation. Figure 4 is another flow chart of the wafer robot arm disclosed in the present invention, which is mainly defined by the base part, the first arm part, the second arm part and the chip placement part of the wafer robot arm. The value is used as another setting condition flow chart that needs to be met during operation. FIG. 5 is a schematic diagram of the hypothetical operation of some components similar to FIG. 2 , and mainly discloses the operating state of the wafer robotic arm after meeting the set conditions.

10:Reaction chamber

100: Base part

110: Base arm

120: Base rotation unit

200:First arm

210:First arm

220: First rotating unit

300:Second arm

310:Second arm

320: Second rotating unit

400: Wafer Arrangement Department

500:Control unit

600: Self-rotating unit

700: Height adjustment unit

800: Horizontal adjustment unit

Claims (7)

A wafer robot arm, which includes: a base portion, which is provided with a base arm, and at least one side of the base arm is flat; a first arm portion, one end of which is rotatably pivoted on the base portion One side of the base arm, wherein the first arm further includes a first arm and a first rotation unit disposed on one side of the first arm, the first arm having a predetermined length and defining is a first length; a second arm, one end of which is rotatably pivoted on the other end of the first arm, wherein the second arm further includes a second arm and a second rotation unit, one side of the second arm of the second arm is connected to the first rotation unit of the first arm, and the opposite side of the second arm is provided with the second rotation unit. The arm has a predetermined length and is defined as a second length; a wafer disposing part is rotatably pivoted at the other end of the second arm part, and the wafer disposing part is used to carry a wafer, And the wafer arrangement part has an imaginary center point; an ion beam irradiator, from the ion beam irradiator to the wafer relative to the wafer arrangement part is defined as a reference position; wherein, from the reference position The length distance between the position and the wafer arrangement part is defined as a gap length; and A control part is electrically connected to the base part, the first arm part and the second arm part respectively, so that at least one of the base part, the first arm part and the second arm part is connected It can electrically receive a movement signal generated by the control unit to generate movement. The wafer robot arm according to claim 1, wherein the distance from one side of the first arm of the first arm part to the reference position is defined as a virtual length; wherein, the first The sum of the length and the second length is defined as a first value, the sum of the interval length and the imaginary length is defined as a second value, and the first value is consistent with the second value. The difference obtained after subtraction is a positive number. The wafer robot of claim 2, wherein the sum of the first length and the imaginary length is defined as a third value, and the sum of the second length and the interval length is defined as a The fourth value is a positive number, and the difference obtained by subtracting the third value and the fourth value is a positive number. The wafer robot arm according to claim 1 further includes a self-rotating unit connected to the other side of the base part, so that the base part can tilt and rotate through the self-rotating unit. The wafer robot arm according to claim 1 further includes a height adjustment unit connected to the other side of the base part, so that the height of the base part can be adjusted through the height adjustment unit. The wafer robot arm according to claim 1, wherein the angle of the first rotation unit of the first arm part is from -90 degrees to +90 degrees. The wafer robot arm according to claim 1, wherein the wafer placement part has static electricity that generates adsorption of the wafer to fix the wafer.

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