TWM449673U - Clamping - Google Patents

Abstract

A clamping including a first fixture, a second fixture and a plurality of magnetic elements is provided. The first fixture includes a first body portion and a plurality of first protrusion portions. The first body portion has a first opening region. The first protrusion portions disposed apart from each other are disposed on the first body portion and protrude toward the first opening region. Each of the first protrusion portions has a first hole. The second fixture includes a second body portion and a plurality of second protrusion portions. The second body portion has a second opening region. The second protrusion portions disposed apart from each other are disposed on the second body portion and protrude toward the second opening region. Each of the second protrusion portions has a second hole. The magnetic elements are disposed inside the first holes and the second holes such that the first fixture and the second fixture have a magnetic attraction therebetween to hold a periphery of a substrate.

Description

Fixture

This creation is related to a type of jig, and in particular to a magnetic jig.

Generally, the surface of a printed circuit board (PCB) has a coating operation through a solder mask, and the purpose is to apply a layer of ink on the surface of the substrate having the line and bake it to promote the surface of the substrate. The ink is dried to form an insulating layer for subsequent operation of the electronic components of the subsequent welding set.

Conventionally, the ink on the substrate is baked by first clamping the substrate through a jig and then curing the ink by ultraviolet light. When the jig is sandwiched between the substrates, the periphery of the substrate is completely covered, so that the solder resist layer between the jig and the substrate cannot be cured during the irradiation of the ultraviolet light. Therefore, when the jig releases the substrate, the jig will adhere to the uncured ink and contaminate the subsequent pre-clamped substrate. In addition, since the ink is not cured around the substrate, it is also likely to contaminate the working platform of the next workstation when entering the next workstation.

The present invention provides a jig suitable for holding a substrate around and simultaneously exposing most of the upper and lower surfaces of the substrate.

This creation proposes a jig suitable for holding around a substrate. The fixture includes a first jig, a second jig, and a plurality of magnetic elements. The first jig includes a first body portion and a plurality of first protrusions. The first body portion has a first open area. The first protrusion is disposed on the first body portion and protrudes toward the first opening area, wherein the first protrusions are spaced apart from each other, and each of the first protrusions has a first opening. The second jig corresponds to the first jig configuration. The second jig includes a second body portion and a plurality of second protrusions. The second body portion has a second open area. The second protrusion is disposed on the second body portion and protrudes toward the second opening area, wherein the second protrusions are spaced apart from each other, and each of the second protrusions has a second opening. The magnetic elements are respectively disposed in the first opening of the first protrusion and the second opening of the second protrusion. The magnetic element located at the first protrusion and the magnetic element located at the corresponding second protrusion respectively have a magnetic attraction. The magnetic attraction forces the first jig and the second jig to abut the periphery of the substrate to sandwich the periphery of the substrate between the first jig and the second jig.

In an embodiment of the present invention, each of the first protrusions has a first surface facing the substrate, and each of the second protrusions has a second surface facing the substrate, and a contact surface of each of the magnetic elements and the corresponding first surface The first surface of the protrusion or the second surface of the corresponding second protrusion is flush.

In an embodiment of the present invention, each of the first protrusions has a first surface facing the substrate, and each of the second protrusions has a second surface facing the substrate, and a contact surface of each of the magnetic elements protrudes from the corresponding surface a first surface of a protrusion or a second surface of a corresponding second protrusion.

In an embodiment of the present invention, the magnetic flux density of the magnetic element is 2800 gauss to 7200 gauss, respectively.

In an embodiment of the present invention, the first body portion is integrally formed with the first protrusion, and the second body portion and the second protrusion are integrally formed.

In an embodiment of the present invention, the jig further includes a plurality of fixing members, and the first protruding portion and the second protruding portion are respectively fixed to the first main body portion and the second main body portion through the fixing member.

In an embodiment of the present invention, the fixing member includes a plurality of first fixing members and a plurality of second fixing members. The first body portion further has a plurality of first positioning holes, and each of the first protruding portions has a plurality of first portions. The second body portion further has a plurality of third positioning holes, and each of the second protrusions further has a plurality of fourth positioning holes, and the first fixing member passes through the first positioning holes and the second positioning holes A protrusion is fixed to the first body portion, and the second fixing member passes through the third positioning hole and the fourth positioning hole to fix the second protrusion to the second body portion.

In an embodiment of the present invention, the first body portion has a plurality of first recesses, each of the first protrusions has a first positioning portion and a first extension portion, and the first positioning portion is located in the first opening portion. And the first opening penetrates the first positioning portion, the first extension of the first protrusion is located at the first recess of the first body portion, and the surface of the first extension is flush with the surface of the first body portion.

In an embodiment of the present invention, the second body portion has a plurality of second recesses, each of the second protrusions has a second positioning portion and a second extension portion, and the second positioning portion is located in the second opening portion. And the second opening penetrates the second positioning portion, the second extension of the second protrusion is located at the second recess of the second body portion, and the surface of the second extension is flush with the surface of the second body portion.

In an embodiment of the present invention, the jig further includes a plurality of fixing members, and the first extending portion of the first protruding portion and the second extending portion of the second protruding portion are fixed to the first main body portion and the second through the fixing member On the main body.

In an embodiment of the present invention, the fixing member includes a plurality of first solids The first recessed portion further has a plurality of first positioning holes, each of the first extending portions further has a plurality of second positioning holes, and the second recessed portion further has a plurality of third positioning holes, Each of the second extending portions further has a plurality of fourth positioning holes, and the first fixing member passes through the first positioning holes and the second positioning holes to fix the first extending portion to the first recess portion, and the second fixing member wears The second extension portion is fixed to the second recess portion through the third positioning hole and the fourth positioning hole.

In an embodiment of the present invention, the magnetic element includes a plurality of first magnetic elements and a plurality of second magnetic elements, the first magnetic elements being respectively disposed in the first openings of the first protrusions, and the second magnetic elements The second magnetic holes are respectively disposed in the second opening of the second protruding portion, and the magnetic properties of the first magnetic element are attracted to the magnetic properties of the second magnetic element.

Based on the above, the present invention is to make the first jig and the second jig by magnetic attraction between the magnetic element located at the first protrusion of the first jig and the magnetic element located at the second protrusion of the second jig. Clamp the substrate around. In addition, since the first jig and the second jig are disposed only around the substrate, the first protrusion and the second protrusion are disposed around the substrate, so that the first jig is compared with the conventional jig. In the case where the second jig completely covers the periphery of the substrate, the area around the substrate covered by the first jig and the second jig is small. Therefore, when the solder resist process is performed, the area where the solder resist ink around the substrate is cured can be relatively increased, thereby reducing the situation in which subsequent foreign matter adheres to the substrate or the uncured solder resist ink contaminates the machine device.

In order to make the above features and advantages of the present invention more comprehensible, the following embodiments are described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective exploded view of a jig and a substrate according to an embodiment of the present invention. 2A is a partial enlarged view of the first jig of FIG. 1. 2B is a partial enlarged view of the second jig of FIG. 1. Referring to FIG. 1 , FIG. 2A and FIG. 2B , the jig 10 a of the embodiment is adapted to hold a substrate 20 , wherein the substrate 20 is, for example, a substrate coated with solder resist ink on both sides. More specifically, the substrate 20 has a component placement region 22 and a substrate periphery 24 surrounding the component placement region 22, and the clamp 10a is adapted to hold the substrate periphery 24.

In detail, the jig 10a includes a first jig 100a, a second jig 200a, and a plurality of magnetic elements 300. The second jig 200a is disposed corresponding to the first jig 100a, wherein the second jig 200a and the first jig 100a abut against the substrate periphery 24, for example, up and down.

Specifically, the first jig 100a includes a first body portion 110a and a plurality of first protrusions 120a, wherein the first body portion 110a and the first protrusion portion 120a are integrally formed, for example. The first body portion 110a has a first opening region 112. The first open area 112 is located at the center of the first jig 100a and is adapted to expose the component arrangement area 22 of the substrate 20. The first protrusion 120 a is disposed on the first body portion 110 a and protrudes toward the first opening region 112 , wherein each of the first protrusions 120 a has a first opening 122 . In particular, the first protruding portions 120a are arranged apart from each other. In other words, the adjacent two first protrusions 120a are separated by a distance, and a part of the substrate periphery 24 is exposed between the adjacent two first protrusions 120a.

The second jig 200a includes a second body portion 210a and a plurality of second portions The protrusion 220a, wherein the second body portion 210a and the second protrusion 220a are integrally formed, for example. The second body portion 210a has a second opening region 212. The second open area 112 is located at the center of the second jig 200a and is adapted to expose the component arrangement area 22 of the substrate 20. The second protruding portion 220 a is disposed on the second main body portion 210 a and protrudes toward the second opening portion 212 , wherein each of the second protruding portions 220 a has a second opening 222 . In particular, the second protruding portions 220a are disposed apart from each other. In other words, the adjacent two second protrusions 200a are separated by a distance, and a part of the substrate periphery 24 is exposed between the adjacent two second protrusions 120a.

The magnetic elements 300 are respectively disposed in the first opening 122 of the first protrusion 120a and in the second opening 222 of the second protrusion 220a. In the present embodiment, the magnetic element 300 includes a plurality of first magnetic elements 310 and a plurality of second magnetic elements 320. The first magnetic elements 310 are respectively disposed in the first openings 122 of the first protrusions 120a, and the second magnetic elements 320 are respectively disposed in the second openings 222 of the second protrusions 220a. In particular, the magnetic poles of the first magnetic element 310 of the present embodiment are different from the magnetic poles of the second magnetic element 320, so that there is magnetic attraction between the first magnetic element 310 and the corresponding second magnetic element 320.

When the first jig 100a is correspondingly close to the second jig 200a, the magnetic attraction between the first magnetic element 310 and the second magnetic element 320 will force the first jig 100a and the second jig 200a to abut the substrate. 24, as shown in FIG. 3, the substrate periphery 24 is sandwiched between the first jig 100a and the second jig 200a.

When the clamp 10a is clamped on both sides, it is coated with solder resist ink (not shown). When the substrate 20 is subjected to the ultraviolet curing process, the first protrusion 120a of the first jig 100a only partially covers the surface 20a of the substrate 20, and the second protrusion 220a of the second jig 200a only partially covers the surface 20b of the substrate 20. . That is, the first protrusion 120a and the second protrusion 220a only partially cover the substrate periphery 24. Therefore, the contact area between the first protrusion 120a and the second protrusion 220a of the embodiment and the periphery 24 of the substrate is small compared with the conventional clamp completely covering the periphery of the substrate, thereby contributing to the increase of the solder resist ink by the ultraviolet light. The probability of exposure, thereby increasing the area in which the solder resist ink is cured. That is, the design of the embodiment can increase the area of the solder resist ink (not shown) irradiated onto the substrate 20 by ultraviolet light (not shown), and the ultraviolet light can be partially cured by the principle of light diffraction. The solder resist ink covered by the protruding portion 120a and the second protruding portion 220a. As a result, the area of the solder resist ink around the substrate 24 to be cured can be relatively increased, thereby reducing the situation where subsequent foreign matter adheres to the periphery of the substrate 24 or the uncured solder resist ink contaminates the machine equipment.

In this embodiment, the material of the first magnetic element 310 and the second magnetic element 310 is, for example, neodymium iron boron or samarium cobalt. The magnetic flux density of the first magnetic element 310 and the magnetic flux density of the second magnetic element 310 are, for example, 2800 Gauss to 7200 Gauss, respectively. In addition, each of the first protrusions 120a of the present embodiment has a first surface 124 facing the substrate 20, and each of the second protrusions 220a has a second surface 224 facing the substrate 20. A first contact surface 312 of the first magnetic element 310 is substantially flush with the first surface 124 of the corresponding first protrusion 120a, and a second contact surface 322 of the second magnetic element 320 and the corresponding second protrusion 220a The second surface 224 is substantially flush, as shown in Figure 4A. However, this creation is not limited to this. In other embodiments, As shown in FIG. 4B, the first contact surface 312 of the first magnetic element 310 may also protrude from the first surface 124 of the corresponding first protrusion 120a, and the second contact surface 322 of the second magnetic element 320 protrudes from the corresponding The second surface 224 of the second protrusion 220a.

In addition, in this embodiment, the first magnetic element 310 having the same magnetic property is disposed on the first jig 100a, and the second magnetic element 320 having the same magnetic property is disposed on the second jig 200a, wherein the first magnetic element The magnetic pole of 310 is different from the magnetic pole of the second magnetic element 320, so there is magnetic attraction. However, this creation is not limited to this. In other embodiments not shown, the different magnetic magnetic components 300 may be simultaneously distributed in the first opening 122 and the second opening 222, that is, the magnetic element 300 having different magnetic poles in the first opening 122. The magnetic element 300 having different magnetic poles is also included in the second opening 22, as long as the magnetic elements 300 having different magnetic poles are disposed in the corresponding first opening 122 and second opening 222. In the above manner, the first jig 100a and the second jig 200a can be abutted on the periphery 24 of the substrate due to magnetic attraction. This is still a technical solution that can be adopted in the present invention without departing from the scope of the present invention.

Other embodiments are listed below for illustration. It is to be noted that the following embodiments use the same reference numerals and parts of the above-mentioned embodiments, and the same reference numerals are used to refer to the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted portions, reference may be made to the foregoing embodiments, and the following embodiments are not repeatedly described.

FIG. 5 is a perspective exploded view of a jig and a substrate according to another embodiment of the present invention. 6A is a partial enlarged view of the first jig of FIG. 5; Figure. 6B is a partial enlarged view of the second jig of FIG. 5. Referring to FIG. 5, FIG. 6A and FIG. 6B, the jig 10b of the present embodiment is similar to the jig 10a of FIG. 1, but the main difference is that the jig 10b of the embodiment further includes a plurality of first fixing members 140. And a plurality of second fixing members 240. The first body portion 110b has a plurality of first positioning holes 142, and each of the first protrusions 120b has a plurality of second positioning holes 144. The second body portion 210b has a plurality of third positioning holes 242, and each of the second protrusions 220b has a plurality of fourth positioning holes 244. The first fixing member 140 can pass through the first positioning hole 142 and the second positioning hole 144 to fix the first protrusion 120b to the first body portion 110b. The second fixing member 240 can pass through the third positioning hole 242 and the fourth positioning hole 244 to fix the second protrusion 220b to the second body portion 210b. In other words, the first protrusion 120b and the second protrusion 220b of the present embodiment can be regarded as a detachable element.

For example, the first fixing member 140 includes a screw 140a and a nut 140b, and the first positioning hole 142 and the second positioning hole 144 are, for example, screw holes. The screw 130a can be locked with the nut 130b after passing through the first positioning hole 142 and the second positioning hole 144, and the first protrusion 120b is fixed on the first body portion 110b. The second fixing member 240 includes a screw 240a and a nut 240b, and the third positioning hole 242 and the fourth positioning hole 244 are, for example, screw holes. The screw 230a is inserted through the third positioning hole 242 and the fourth positioning hole 244 to be locked with the nut 230b, and the second protrusion 220b is fixed to the second body portion 210b.

It is worth mentioning that since the first protruding portion 120b and the second protruding portion 220b are both detachable components, the user can customize according to the use requirements. The positions of the first protruding portion 120b/second protruding portion 220b are set in a row to control the separation distance between the two adjacent first protruding portions 120b/second protruding portions 220b, which has greater flexibility in use. In addition, when the first magnetic element 310 and the second magnetic element 320 are assembled or replaced with the first protrusion 120b and the second protrusion 220b, a larger working space may also be provided.

FIG. 7 is a perspective exploded view of a jig and a substrate according to another embodiment of the present invention. 8A(a) and 8A(b) are partially enlarged schematic views of the first jig of Fig. 7. 8B(a) and 8B(b) are partially enlarged schematic views of the second jig of Fig. 7. For convenience of explanation, FIG. 8A(a) is an exploded perspective view of the first body portion 110c and the first protrusion portion 120c, and FIG. 8A(b) illustrates the assembly of the first body portion 110c and the first protrusion portion 120c. FIG. 8B( a ) is an exploded perspective view of the second main body portion 210 c and the second protruding portion 220 c , and FIG. 8B ( b ) is a schematic view showing the assembly of the second main body portion 210 c and the second protruding portion 220 c .

Referring to FIG. 7, FIG. 8A(a), FIG. 8A(b), FIG. 8B(a) and FIG. 8B(b), the jig 10c of the embodiment is similar to the jig 10a of FIG. 1, but the main difference is The first main body portion 110c of the first jig 100c has a plurality of first recessed portions 114, and each of the first protruding portions 120c has a first positioning portion 126c and a first extending portion 128c. The first positioning portion 126c is located in the first opening area 112, and the first opening 122 penetrates the first positioning portion 126c. The first magnetic element 310 is disposed in the first opening 122 of the first positioning portion 126c. In other words, the first positioning portion 126c can be used to abut the substrate periphery 24. Further, the first extension portion 128c of the first protrusion portion 120c is located in the first recess portion 114 of the first body portion 110c. Specifically, the first burst The outlet portion 120c is fixed to the first body portion 100c by the first extending portion 128c, wherein the first extending portion 128c is fixed to the first recess portion 114 by, for example, a structural fitting.

The second body portion 210c of the second jig 200c has a plurality of second recess portions 214, and each of the second protrusion portions 220c has a second positioning portion 226c and a second extending portion 228c. The second positioning portion 226c is located in the second opening area 212, and the second opening 122 penetrates the second positioning portion 226c. The second magnetic element 320 is disposed in the second opening 222 of the second positioning portion 226c. In other words, the second positioning portion 226c can be used to abut the substrate periphery 24. Further, the second extension portion 228c of the second protrusion portion 220c is located in the second recess portion 214 of the second body portion 210c. Specifically, the second protruding portion 220c is fixed to the second main body portion 200c by the second extending portion 228c, wherein the second extending portion 228c is fixed to the second recessed portion 214 by, for example, a structural fitting manner. .

Further, the surface 120s of the first extension portion 128c is flush with the surface 110s of the first body portion 110c, and the surface 220s of the second extension portion 228c is flush with the surface 210s of the second body portion 210c. Therefore, the total thickness of the first jig 100c and the second jig 200c of the present embodiment is not increased by the design of the first projecting portion 120c and the second projecting portion 220c.

9A(a) and 9A(b) are partially enlarged schematic views showing a first jig of an embodiment of the present invention. 9B(a) and 9B(b) are partially enlarged schematic views showing a second jig according to an embodiment of the present invention. For convenience of explanation, FIG. 9A(a) is a schematic exploded view of the first body portion 110d and the first protruding portion 120d, and FIG. 9A(b) is a first body portion 110d and a first protrusion. FIG. 9B( a ) is an exploded perspective view of the second main body portion 210 d and the second protruding portion 220 d , and FIG. 9B( b ) is a second main body portion 210 d and a second protruding portion 220 d. Assembly diagram.

Please refer to FIG. 9A (a), FIG. 9A (b), FIG. 9B (a) and FIG. 9B (b), the first jig 100d and the second jig 200d of the embodiment and the first jig of FIG. 100c is similar to the second jig 200c, but the main difference between the two is that the first extending portion 128d of the first protruding portion 120d and the second extending portion 228d of the second protruding portion 220d are through the fixing member. And being fixed to the first body portion 110d and the second body portion 210d, respectively.

Specifically, the first recessed portion 114d has a plurality of first positioning holes 115, and each of the first extending portions 128d has a plurality of second positioning holes 129. The second recessed portion 214d has a plurality of third positioning holes 215, and each of the second extending portions 228d has a plurality of fourth positioning holes 229. The first fixing member 140 passes through the first positioning hole 115 and the second positioning hole 129 to fix the first extending portion 128d to the first recess portion 114d. The second fixing member 240 passes through the third positioning hole 215 and the fourth positioning hole 229 to fix the second extending portion 228d to the second recess portion 214d.

In summary, the present invention is to make the first jig and the second by magnetic attraction between the magnetic element located at the first protrusion of the first jig and the magnetic element located at the second protrusion of the second jig. The fixture is clamped around the substrate. In addition, since the first jig and the second jig are disposed only around the substrate, the first protrusion and the second protrusion are disposed around the substrate, so that the first jig is compared with the conventional jig. When the second fixture completely covers the periphery of the substrate, the area covered by the first fixture and the second fixture is larger than that of the substrate. less. Therefore, when the solder resist process is performed, the area where the solder resist ink around the substrate is cured can be relatively increased, thereby reducing the situation in which subsequent foreign matter adheres to the substrate or the uncured solder resist ink contaminates the machine device.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any person having ordinary knowledge in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of protection of this creation is subject to the definition of the scope of the patent application attached.

10a, 10b, 10c‧‧ ‧ fixture

20‧‧‧Substrate

20a‧‧‧ surface

20b‧‧‧ surface

22‧‧‧Component configuration area

24‧‧‧ Around the substrate

100a, 100b, 100c, 100d‧‧‧ first fixture

110a, 110b, 110c, 110d‧‧‧ first body

110s‧‧‧ surface

112‧‧‧First opening area

114‧‧‧First depression

114d‧‧‧First depression

115‧‧‧First positioning hole

120a, 120b, 120c, 120d‧‧‧ first protrusion

122‧‧‧First opening

124‧‧‧ first surface

126c, 126d‧‧‧ first positioning department

128c, 128d‧‧‧ first extension

129‧‧‧Second positioning hole

140‧‧‧First fixture

140a‧‧‧screw

140b‧‧‧ nuts

142‧‧‧First positioning hole

144‧‧‧Second positioning hole

200a, 200b, 200c, 200d‧‧‧ second fixture

210a, 210b, 210c, 210d‧‧‧ second main body

210s‧‧‧ surface

212‧‧‧Second opening area

214‧‧‧Second depression

214d‧‧‧second depression

215‧‧‧ third positioning hole

220a, 220b, 220c, 220d‧‧‧ second protrusion

222‧‧‧Second opening

224‧‧‧ second surface

226c, 226d‧‧‧Second Positioning Department

228c, 228d‧‧‧ second extension

229‧‧‧four positioning holes

240‧‧‧Second fixture

240a‧‧‧screw

240b‧‧‧ nuts

242‧‧‧third positioning hole

244‧‧‧Four locating holes

300‧‧‧Magnetic components

310‧‧‧First magnetic component

312‧‧‧ first contact surface

320‧‧‧Second magnetic component

322‧‧‧Second contact surface

FIG. 1 is a perspective exploded view of a jig and a substrate according to an embodiment of the present invention.

2A is a partial enlarged view of the first jig of FIG. 1.

2B is a partial enlarged view of the second jig of FIG. 1.

3 is a schematic view showing the assembly of the jig and the substrate of FIG. 1.

Fig. 4A is a schematic cross-sectional view taken along line I-I' of Fig. 3.

4B is a partial cross-sectional view showing the periphery of a clamp substrate of one of the embodiments of the present invention.

FIG. 5 is a perspective exploded view of a jig and a substrate according to another embodiment of the present invention.

FIG. 6A is a partial enlarged view of the first jig of FIG. 5. FIG.

6B is a partial enlarged view of the second jig of FIG. 5.

FIG. 7 is a perspective exploded view of a jig and a substrate according to another embodiment of the present invention.

8A(a) and 8A(b) are partially enlarged schematic views of the first jig of Fig. 7.

8B(a) and 8B(b) are partially enlarged schematic views of the second jig of Fig. 7.

9A(a) and 9A(b) are partially enlarged schematic views showing a first jig of an embodiment of the present invention.

9B(a) and 9B(b) are partially enlarged schematic views showing a second jig according to an embodiment of the present invention.

10a‧‧‧ fixture

20‧‧‧Substrate

20a‧‧‧ surface

20b‧‧‧ surface

22‧‧‧Component configuration area

24‧‧‧ Around the substrate

100a‧‧‧First fixture

110a‧‧‧First Main Body

112‧‧‧First opening area

120a‧‧‧First protrusion

122‧‧‧First opening

200a‧‧‧second fixture

210a‧‧‧Second Main Body

212‧‧‧Second opening area

220a‧‧‧second protrusion

222‧‧‧Second opening

310‧‧‧First magnetic component

320‧‧‧Second magnetic component

Claims (12)

A clamp for clamping a substrate, the fixture comprising: a first jig comprising: a first body portion having a first opening region; and a plurality of first protrusions disposed on the first body And protruding toward the first opening area, wherein the first protrusions are spaced apart from each other, and each of the first protrusions has a first opening; a second fixture corresponding to the first fixture The second jig includes: a second body portion having a second opening portion; and a plurality of second protrusions disposed on the second body portion and protruding toward the second opening portion, wherein the The second protrusions are spaced apart from each other, and each of the second protrusions has a second opening; and a plurality of magnetic elements are respectively disposed in the first openings of the first protrusions and the Among the second openings of the second protrusion, the magnetic elements located in the first protrusions and the corresponding magnetic elements located in the second protrusions respectively have a magnetic attraction, The magnetic attraction forces the first jig to be in contact with the second jig The periphery of the substrate sandwiched between the first jig and the second jig surrounding the substrate. The jig of claim 1, wherein each of the first protrusions has a first surface facing the substrate, and each of the second protrusions has a second surface facing the substrate, each of the magnetic elements A contact surface is flush with the first surface of the corresponding first protrusion or the second surface of the corresponding second protrusion. Such as the fixture described in claim 1 of the patent scope, wherein each of the first The protrusion has a first surface facing the substrate, each of the second protrusions has a second surface facing the substrate, and a contact surface of each of the magnetic elements protrudes from the first surface of the corresponding first protrusion Or corresponding to the second surface of the second protrusion. The jig of claim 1, wherein the magnetic elements have a magnetic flux density of 2800 gauss to 7200 gauss. The jig of claim 1, wherein the first body portion is integrally formed with the first protrusions, and the second body portion is integrally formed with the second protrusions. The jig of the first aspect of the invention, further comprising a plurality of fixing members, wherein the first protruding portion and the second protruding portions are respectively fixed to the first main body portion and the second portion through the fixing members On the main body. The jig of claim 6, wherein the fixing member comprises a plurality of first fixing members and a plurality of second fixing members, the first body portion further having a plurality of first positioning holes, each of the first The protrusion further has a plurality of second positioning holes, the second body portion further has a plurality of third positioning holes, and each of the second protrusions further has a plurality of fourth positioning holes, and the first fixing members pass through the The first positioning holes and the second positioning holes fix the first protrusions on the first body portion, and the second fixing members pass through the third positioning holes and the fourth positions And fixing the second protrusions to the second body portion. The jig of claim 1, wherein the first body portion has a plurality of first recesses, each of the first protrusions having a first positioning portion and a first extending portion, the first positioning portions Is located in the first opening The first openings are located in the first positioning portions, and the first extending portions of the first protruding portions are located in the first recess portions of the first body portion, and the first portions The surface of the extension is flush with the surface of the first body portion. The jig of claim 8, wherein the second body portion has a plurality of second recesses, each of the second protrusions having a second positioning portion and a second extending portion, the second positioning portions The second opening is located in the second opening portion, and the second openings are located in the second positioning portions, and the second extending portions of the second protruding portions are located in the second recess portions of the second body portion And the surfaces of the second extensions are flush with the surface of the second body portion. The jig of claim 9, further comprising a plurality of fixing members, the first extending portions of the first protruding portions and the second extending portions of the second protruding portions transmitting the fixing portions And fixed to the first body portion and the second body portion. The jig of claim 10, wherein the fixing member comprises a plurality of first fixing members and a plurality of second fixing members, the first recess portion further has a plurality of first positioning holes, each of the first The extending portion further has a plurality of second positioning holes, the second recess portion further has a plurality of third positioning holes, and each of the second extending portions further has a plurality of fourth positioning holes, and the first fixing members pass through the The first positioning holes and the second positioning holes fix the first extending portions to the first recesses, and the second fixing members pass through the third positioning holes and the fourth positioning holes And fixing the second extensions to the second recesses. The jig of claim 1, wherein the magnetic elements comprise a plurality of first magnetic elements and a plurality of second magnetic elements, The first magnetic elements are respectively disposed in the first openings of the first protrusions, and the second magnetic elements are respectively disposed in the second openings of the second protrusions, and the The magnetic properties of the first magnetic elements are attracted to the magnetic properties of the second magnetic elements.