TW202033836A - Asymmetric water seal conductive clamp - Google Patents

Abstract

An asymmetric water seal conductive clamp at least includes a first clamp arm, a second clamp arm, a first soft sealing member, a second soft sealing member, and a plurality of hard protective sleeves. The opposite side surfaces of the first and second clamp arms respectively have a first bump and a second bump corresponding to the position of the clamping surface. The first soft sealing member has a first hole corresponding to the position of the first bump and a plurality of first idle openings disposed two sides of the first hole respectively. The second soft sealing member has a second hole corresponding to the position of the second bump and a plurality of second idle openings disposed two sides of the second hole respectively. The hard-protective sleeves cover the surfaces of the first and the second clamp arms.

Description

Asymmetrical water-sealed conductive clip

The present invention relates to a processing equipment, and particularly relates to an asymmetric water-sealed conductive clip.

In the printed circuit board (PCB) or other related industries, the development of electroplating technology continues to evolve with the needs of users, especially for the quality and output of the manufactured products, which often cannot be balanced.

Regarding the electroplating aspect of the PCB process, the larger the contact area of the pinch point of the required workpiece (ie, the product subject matter), the better, so the current method is to increase the holding area of the plated object and have good electroplating The liquid barrier effect causes the waste of the edge material of the product subject. At present, under actual mass production, it is found that if the clamp arm enters the electroplating solution, if the electroplating solution enters into contact with the bumps, the bumps will also be more or less plated with residual copper, resulting in poor quality. When it reaches a certain level, The residual copper must be removed manually by chemical cleaning (reverse plating), which will increase the cost in addition to increasing pollution.

In addition to electroplating technology, all equipment that requires conductive clips will also encounter the above technical problems.

The present invention provides an asymmetrical water-sealed conductive clip, which can avoid or reduce the increase in pollution and the increase in cost in addition to reducing the waste of material on the edge of the product subject.

The asymmetric water-sealed conductive clip of the present invention at least includes a first clamping arm, a second clamping arm, a first soft sealing element, a second soft sealing element and several hard protective sleeves. The facing side surfaces of the first and second clamping arms respectively have first and second protrusions corresponding to the positions of the clamping surfaces. When the first clamping arm clamps a workpiece, the contact area between the first protrusion and the workpiece is smaller than the clamping surface of the first protrusion. When the second clamping arm clamps the workpiece, the contact area between the second protrusion and the workpiece is smaller than the clamping surface of the second protrusion. The first soft seal has a first opening whose position matches the first protrusion and a plurality of first idle openings respectively located on both sides of the first opening, wherein the first opening covers the periphery of the first protrusion, And each of the first idle openings is arranged on the side surface of the first bump. The second soft sealing member has a second opening whose position matches the second protrusion and a plurality of second idle openings respectively located on both sides of the second opening, wherein the second opening covers the periphery of the second protrusion, And each of the second idle openings is arranged on the side surface of the second bump. The hard protective sleeve covers the surfaces of the first and second clamping arms.

In an embodiment of the present invention, the width of the clamping surface of the first protrusion is more than half of the width of the first clamping arm.

In an embodiment of the present invention, the width of the clamping surface of the second protrusion is more than half of the width of the second clamping arm.

In an embodiment of the present invention, the width of the part where the first protrusion is provided on the first clamping arm is larger than the width of the other parts.

In an embodiment of the present invention, the width of the part where the second protrusion is provided on the second clamping arm is larger than the width of the other parts.

In an embodiment of the present invention, the contact area between the first bump and the workpiece is equal to or less than half, 1/3, or 2/3 of the clamping surface of the first bump.

In an embodiment of the present invention, the contact area between the second bump and the workpiece is equal to or less than half, 1/3, or 2/3 of the clamping surface of the second bump.

In an embodiment of the present invention, the number of the first idle openings is more than two.

In an embodiment of the present invention, the number of the above-mentioned second idle openings is more than two.

Based on the above, the present invention uses a sealing member designed with a specific structure to allow the plated object to be completely clamped to the bump, although the upper half of the bump does not clamp the plated object, but it can be sealed by soft The upper part of the part is designed asymmetrically, so that the part above the soft sealing part can be tightly fitted, blocking the leakage of the chemical or other processing solution from the upper side or the side to the bump clamping surface as the electrode, causing the bump to also be plated Residual copper affects quality, and even requires manual cleaning with chemical liquids (reverse plating) to remove residual copper, which increases pollution and costs. Moreover, soft seals (such as rubber) may also be plated with residual copper, so the idle openings designed on both sides of the bump can provide several soft spaces so that the infiltrated conductive liquid will not directly penetrate the conductive bump In addition to protecting the bump, it can also protect the soft part of the inner ring of the bump.

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

The following disclosure provides many different implementations or examples for implementing different features of the present invention. Of course, these embodiments are only examples, and are not intended to limit the scope and application of the present invention. Furthermore, for the sake of clarity, the relative thickness and position of each member, film layer or region may be reduced or enlarged. In addition, similar or identical element symbols are used in each of the drawings to indicate similar or identical elements or features, and if there are elements in the drawings that are the same as the previous figure, their description will be omitted.

FIG. 1 is a schematic cross-sectional view of an asymmetric water-sealed conductive clip according to an embodiment of the present invention.

1, the asymmetric water-sealed conductive clip 100 in the embodiment at least includes a first clamping arm 102, a second clamping arm 104, a first soft sealing element 106, a second soft sealing element 108 and a hard protective sleeve 110. In the text, "soft" and "hard" are relative terms; in detail, soft is a deformable material, hard is a non-deformable material, or a material with a lower amount of deformation than soft. In addition, the asymmetric water-sealed conductive clip 100 of this embodiment may be additionally provided with a transmission rod 112, two elastic elements 114a and 114b respectively connected to the transmission rod 112 and the first and second clamping arms 102 and 104, and the slave The first and second clamping arms 102 and 104 are respectively connected to two movable brackets 118a and 118b of the rotating shaft 116 on the transfer rod 112. The figure shows a situation where the first and second clamping arms 102 and 104 clamp a workpiece 120. If a force F is applied to the first and second clamping arms 102 and 104, the asymmetric water-seal conductive clamp 100 can be made turn on. However, the present invention is not limited to this, and other components of the asymmetric water-sealed conductive clip 100 connected to the first and second clip arms 102 and 104 may also adopt other designs.

For the detailed structure of the first and second clamping arms 102 and 104, please refer to FIGS. 2A and 2B. FIG. 2A is a partial enlarged view of the first and second clamping arms 102 and 104 in FIG. 2B is a front view of the first (or second) clamp arm in FIG. 2A, and the first clamp arm 102 is taken as an example in the text, and for the sake of clarity, some components are omitted.

2A and 2B, a side 102a of the first clamping arm 102 has a first protrusion 122, the first protrusion 122 has a clamping surface 122a and a side surface 122b, wherein the clamping surface 122a refers to the surface that clamps the workpiece 120 And the first bump 122 is a part of the first clamping arm 102, so its material is the same as that of the first clamping arm 102, such as stainless steel or other conductive materials. The structure of the second clamping arm 104 basically corresponds to the first clamping arm 102. For example, a side 104a opposite to the first clamping arm 102 has a second protrusion 124, and the second protrusion 124 has a clamping surface 124a and a side surface 124b. And the position of the clamping surface 124a of the second protrusion 124 corresponds to the position of the clamping surface 122a of the first protrusion 122, and the second protrusion 124 is a part of the second clamping arm 104, so its material is the same as that of the second clamping arm 104. For example, stainless steel or other conductive materials.

The first soft sealing member 106 has a first opening 106a whose position is consistent with the first bump 122 and a first idle opening 106b located on both sides of the first opening 106a, wherein the first opening 106a covers the first bump 122, and each of the first idle openings 106b is provided on the side 122b of the first bump 122 to prevent the chemical or other processing solution from infiltrating directly into the conductive first bump 122 from the side, in addition to protecting the first In addition to the bump 122, the soft part of the first opening 106a can also be protected. The second soft seal 108 also has a second opening 108a whose position matches the second bump 124 and a second idle opening 108b located on both sides of the second opening 108a, wherein the second opening 108a covers the second bump 124 Each second idle opening 108b is arranged on the side surface 124b of the second bump 124 to prevent the chemical liquid or other processing solution from directly penetrating into the conductive second bump 124 from the side surface, except to protect the second bump In addition to 124, the soft part of the second opening 108a can also be protected. In this embodiment, the number of the first idle opening 106b is two, but the present invention is not limited to this, the number of the first idle opening 106b can also be two or more, for example, there are two on both sides of the first opening 106a. The first idle opening 106b, so there are a total of 4 first idle openings 106b, and so on. Similarly, the number of second idle openings 108b is two, but the present invention is not limited to this. The number of second idle openings 108b can also be two or more. For example, there are two second idle openings on both sides of the second opening 108a. Opening 108b, so there are a total of 4 second idle openings 108b, and so on. The hard protective cover 110 covers the surfaces of the first and second clamping arms 102 and 104, as shown in FIG. 2A. In this embodiment, the hard protective cover 110 covers the surface of the first clamping arm 102 close to the first bump 122 and covers the surface of the second clamping arm 104 close to the second bump 124, but the invention is not limited to this. The hard protective sleeve 110 may also extend to the surfaces of the first and second clamping arms 102 and 104 near the movable supports 118a and 118b in FIG. 1.

In this embodiment, when the first and second clamping arms 102 and 104 clamp the workpiece 120, as shown in FIG. 2A, the workpiece 120 (the plated object) does not need to completely clamp the first and second bumps as in the past. 122 and 124 (for example, the contact area between the first bump 122 and the workpiece 120 is smaller than the clamping surface 122a of the first bump 122, and the contact area between the second bump 124 and the workpiece 120 is smaller than the clamping surface 124a of the second bump 124), Therefore, the upper halves of the first and second bumps 122 and 124 do not clamp the workpiece 120. According to the previous clamp, if clamped in this way, liquid will enter this space. However, the present invention uses an asymmetrical design on the upper part of the first and second soft seals 106 and 108, so that the upper soft seals (106 and 108) can be closely attached, thereby solving the above-mentioned liquid ingress problem. For example, the contact area between the first bump 122 and the workpiece 120 may be equal to or less than half, 1/3, or 2/3 of the clamping surface 122a of the first bump 122, but the invention is not limited thereto. Similarly, the contact area between the second bump 124 and the workpiece 120 is, for example, equal to or less than half, 1/3, or 2/3 of the clamping surface 124a of the second bump 124, but the present invention is not limited thereto. Once the workpiece 120 is clamped, the parts under the first and second clamping arms 102 and 104 that are in contact with the workpiece 120 (ie, the first and second bumps 122/124) will closely adhere to the workpiece 120. The upper part of the bumps 122/124 will adhere to each other and seal the upper edge of the workpiece 120, presenting an asymmetrical appearance, and achieve the function of blocking the penetration of the liquid medicine from above. The side 122b of the first and second bumps 122/124 /124b has the first and second idle openings 106b/108b to temporarily store the liquid infiltrated from the side, so it can effectively prevent the first and second bumps 122 and 124 from growing copper.

2B, in this embodiment, the width w1 of the clamping surface 122a of the first protrusion 122 is greater than more than half of the width w2 of the first clamping arm 102; the width w1 of the clamping surface 124a of the second protrusion 124 is greater than The width w2 of the second clamping arm 104 is more than half of the width w2. Moreover, the width w2 of the part where the first clamping arm 102 is provided with the first protrusion 122 may be greater than the width w3 of the remaining parts; the width w2 of the part where the second clamping arm 104 is provided with the second protrusion 124 is greater than the width w3 of the remaining parts .

FIG. 3 is a partially enlarged perspective view of the first (or second) clamping arm 102 (or 104) of FIG. 1, and FIG. 3 is a state in which the asymmetric water-sealed conductive clamp is opened, so the clamping surface 122a of the first bump 122 Slightly retracted in the first opening 106a, and the clamping surface 124a of the second bump 124 is slightly retracted in the second opening 108a to facilitate the first and second soft seals when the asymmetric water-sealed conductive clamp clamps the workpiece The members 106 and 108 can tightly seal the first and second bumps 122 and 124. At the same time, the first and second idle openings 106b and 108b have space to accommodate the infiltrated liquid medicine or other processing solutions.

To sum up, the present invention does not need to clamp the bump completely like the traditional one, so the upper half of the bump does not clamp the plated material. According to the past clamp, if the workpiece is clamped in this way, liquid will enter. To solve the above situation, the present invention uses an asymmetrical design on the top of the soft seal to allow the upper soft part to fit tightly to prevent liquid from entering, while simultaneously reducing the area of the ineffective area of the edge of the workpiece (board edge) and preventing liquid medicine. Or other treatment solutions leak to the clamping surface of the electrode bumps, causing the bumps to be plated with residual copper, which affects the quality, and even manual cleaning (reverse plating) to remove the residual copper, which increases pollution and costs. problem. Moreover, the idle openings designed on both sides of the bumps can provide several soft spaces so that the infiltrated conductive liquid will not directly penetrate the conductive bumps. In addition to protecting the bumps, it can also protect the softness of the inner ring of the bumps. section.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Anyone with ordinary knowledge in the technical field can make some changes and modifications without departing from the spirit and scope of the present invention. The scope of protection of the present invention shall be determined by the scope of the attached patent application.

100: Asymmetrical water seal conductive clip 102: first clamp arm 102a, 104a: (the side of the arm) 104: second clamp arm 106: The first soft seal 106a: first opening 106b: The first idle opening 108: The second soft seal 108a: second opening 108b: second idle opening 110: Hard protective sleeve 112: Teleport Rod 114a, 114b: elastic element 116: rotating shaft 118a, 118b: movable bracket 120: Workpiece 122: first bump 122a, 124a: sandwich surface 122b, 124b: (bump) side 124: second bump F: Force w1, w2, w3: width

FIG. 1 is a schematic cross-sectional view of an asymmetric water-sealed conductive clip according to an embodiment of the present invention. Fig. 2A is a partial enlarged view of the first and second clamping arms of Fig. 1. Fig. 2B is a front view of the first (or second) clamp arm in Fig. 2A. Fig. 3 is a partially enlarged perspective view of the first (or second) clamping arm of Fig. 1.

102: first clamp arm

104: second clamp arm

102a, 104a: (the side of the arm)

106: The first soft seal

106a: first opening

106b: The first idle opening

108: The second soft seal

108a: second opening

108b: second idle opening

122: first bump

122a, 124a: sandwich surface

122b, 124b: (bump) side

124: second bump

w1, w2, w3: width

Claims (9)

An asymmetric water-sealed conductive clip, including: A first clamping arm has a first protrusion on one side surface, and when the first clamping arm clamps a workpiece, the contact area between the first protrusion and the workpiece is smaller than that of the first protrusion Sandwich A second clamping arm, a side surface facing the first clamping arm has a second protrusion, the clamping surface position of the second protrusion corresponds to the clamping surface position of the first protrusion, and When the second clamping arm clamps the workpiece, the contact area between the second protrusion and the workpiece is smaller than the clamping surface of the second protrusion; A first soft sealing element has a first opening in a position corresponding to the first protrusion and a plurality of first idle openings respectively located on both sides of the first opening, wherein the first opening covers the The periphery of the first bump, and each of the first idle openings is provided on the side surface of the first bump; A second soft sealing element has a second opening in a position corresponding to the second protrusion and a plurality of second idle openings respectively located on both sides of the second opening, wherein the second opening covers the The periphery of the second bump, and each of the second idle openings is provided on the side surface of the second bump; and A plurality of hard protective sleeves respectively cover the surface of the first clamp arm and the surface of the second clamp arm. According to the asymmetric water-sealed conductive clip described in item 1 of the scope of patent application, the width of the clamping surface of the first bump is more than half of the width of the first clamping arm. According to the asymmetric water-sealed conductive clip described in item 1 of the scope of patent application, the width of the clamping surface of the second bump is more than half of the width of the second clamping arm. According to the asymmetric water-sealed conductive clip described in item 1 of the scope of patent application, the width of the part where the first protrusion is provided on the first clip arm is larger than the width of the other parts. According to the asymmetric water-sealed conductive clip described in item 1 of the scope of patent application, the width of the part where the second protrusion is provided on the second clip arm is larger than the width of the other parts. According to the asymmetric water-sealed conductive clip described in item 1 of the scope of patent application, the contact area between the first bump and the workpiece is equal to or less than half of the clamping surface of the first bump, 1 /3 or 2/3. According to the asymmetric water-sealed conductive clip described in item 1 of the scope of patent application, the contact area between the second bump and the workpiece is equal to or less than half of the clamping surface of the second bump. /3 or 2/3. According to the asymmetric water-sealed conductive clip described in item 1 of the scope of patent application, the number of the first idle openings is 2 or more. According to the asymmetric water-sealed conductive clip described in item 1 of the scope of patent application, the number of the second idle openings is 2 or more.

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