Manufacturing device for copper foil peel strength sample of copper-clad plate

Abstract

The utility model discloses a copper-clad plate copper foil peel strength sample manufacturing device, which is characterized in that a check block set comprises a plurality of check blocks with different widths, two check blocks with different widths are matched for use, and a saw blade of a micro bench saw is slotted at different positions on a copper-clad plate sample, so that a copper-clad plate copper foil peel strength sample with a certain width can be obtained; the gasket set comprises a plurality of gaskets with different thicknesses, and under the condition that the height of the edge of the saw blade higher than the table top is fixed, the gaskets with corresponding thicknesses are selected according to different thicknesses of copper foils used on the surface of a copper-clad plate sample, so that the saw blade extends out of a proper height, and the copper foils are sawed off to obtain a copper-clad plate copper foil peel strength sample. The copper-clad plate copper foil peel strength sample manufacturing device disclosed by the utility model is simple in structure and convenient to use, and can be used for rapidly and efficiently manufacturing a copper-clad plate copper foil peel strength sample without generating waste etching liquid.

Description

Technical Field

[0001] The utility model relates to a copper clad laminate production technology, in particular to a copper clad laminate copper foil peeling strength sample making device. Background Art

[0002] Copper-clad laminates (CCLs) and prepregs (also known as adhesive sheets) are the two most essential raw materials for the manufacture of printed circuit boards (PCBs). Prepregs are made from treated fiberglass cloth, impregnated with a resin adhesive, and then heat-treated (pre-baked) to semi-cure the resin. Copper-clad laminates are manufactured by laminating the prepregs with copper foil on one or both sides and pressing them together under high temperature and high pressure. At this point, the resin is fully cured, forming the insulating layer of the copper-clad substrate.

[0003] The peel strength of a copper foil on a copper-clad laminate (CCL) indicates the bond between the foil and the resin. The higher the peel strength, the stronger the bond between the foil and the resin, and the less likely the circuit formed by the foil will peel off. Therefore, CCL manufacturers test the peel strength of the copper foil before shipment and PCB manufacturers test the incoming materials.

[0004] Currently, the peel strength test for copper foil on copper-clad laminates (CCLs) follows the method outlined in IPC-TM-650 2.4.8. This involves attaching a standard width of etch-resistant tape or other covering to the copper foil surface. Etching fluid is then used to etch away the uncovered portion of the copper foil, yielding a peel strength sample of a specific width. This method consumes etching fluid, and the waste liquid must be treated and not discharged at will. Furthermore, the thicker the copper foil, the more etching fluid is required and the longer the etching time.

[0005] In view of this, the patent CN203881670U (invalid Chinese patent) proposes a method of using a utility knife to scratch the copper foil surface along the edge of the mold to obtain a copper foil test strip of a certain width. This method has high requirements for personnel and tools, and the blade wears quickly.

[0006] Patent CN104359833A uses controlled-depth milling to mill copper foil test strips of a certain width. This method uses a CNC milling machine, which has high precision. To ensure the neat edges of the strips, the milling cutter needs to be replaced promptly after wear. Utility Model Content

[0007] The technical problem to be solved by the utility model is to provide a copper clad laminate copper foil peeling strength sample production device, which can quickly and efficiently produce copper clad laminate copper foil peeling strength samples without generating etching waste liquid.

[0008] In order to solve the above technical problems, the utility model provides a copper clad laminate copper foil peeling strength sample preparation device, which includes a table saw 1, a positioning block 2, a stop block set and a gasket set;

[0009] A saw blade hole 13 extending forward and backward is formed in the middle of the table top 11 of the table saw 1;

[0010] The saw blade 12 of the table saw 1 passes through the saw blade hole 13 , and the edge of the saw blade 12 is higher than the table surface 11 ;

[0011] The gasket set includes at least two gaskets 4 of different thicknesses;

[0012] The middle of the gasket 4 is provided with a front-to-back gasket hole that is consistent with the saw blade hole 13;

[0013] The thickness of the gasket 4 is less than the height of the edge of the saw blade 12 above the table top 11;

[0014] The block set includes at least two blocks 3 of different widths;

[0015] When the copper foil peeling strength sample making device of the copper clad laminate is used:

[0016] The gasket 4 is used to be fixed on the table 11 of the table saw 1 so that the gasket hole of the gasket 4 overlaps with the saw blade hole 13 of the table 11 of the table saw 1, and the upper edge of the saw blade 12 protrudes from the gasket hole of the gasket 4;

[0017] The positioning block 2 is used to be fixed on the left part of the table 11 of the table saw 1;

[0018] The stop block 3 is used to be fixedly placed between the positioning block 2 and the gasket 4 , and the left end of the stop block 3 is fixedly abutted against the positioning block 2 .

[0019] Preferably, the saw blade hole 13 and the gasket hole are rectangular.

[0020] Preferably, the saw blade 12 of the table saw 1 is driven to rotate by a motor.

[0021] Preferably, the material of the stopper 3 and the gasket 4 is stainless steel or ceramic.

[0022] Preferably, the block set includes five blocks 3 of different widths.

[0023] Preferably, the block set includes four blocks 3 of different widths.

[0024] The present invention provides a copper-clad laminate copper foil peel strength sample production device. The block set includes multiple block blocks 3 of varying widths. Two block blocks 3 of varying widths are used together to allow the saw blade 12 of a table saw 1 to make grooves at different locations on a copper-clad laminate sample 5, thereby producing a copper-clad laminate copper foil peel strength sample of a certain width W. The shim set includes multiple shims 4 of varying thicknesses. With the edge of the saw blade 12 positioned at a fixed height above the table surface 11, shims 4 of corresponding thicknesses are selected based on the thickness of the copper foil 51 used on the surface of the copper-clad laminate sample 5, allowing the saw blade 12 to protrude to an appropriate height, thereby sawing through the copper foil 51 and producing a copper-clad laminate copper foil peel strength sample. The present invention provides a copper-clad laminate copper foil peel strength sample production device with a simple structure and ease of use. It can quickly and efficiently produce copper-clad laminate copper foil peel strength samples without generating waste etching liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a schematic diagram of a table saw according to an embodiment of a device for preparing copper foil peeling strength samples of a copper clad laminate according to the present invention;

[0027] Figure 2 This is a schematic diagram of the assembly of an embodiment of a copper clad laminate copper foil peeling strength sample preparation device of the present invention when in use;

[0028] Figure 3 This is a schematic diagram of the assembly of a stopper set, a gasket set, and a table saw in accordance with an embodiment of a device for preparing copper foil peeling strength samples of a copper clad laminate according to the present invention;

[0029] Figure 4 This is a schematic diagram of a copper foil sample strip produced according to an embodiment of a method for producing a copper foil peeling strength sample of a copper clad laminate of the present invention.

[0030] Description of the accompanying drawings:

[0031] 1 table saw; 11 table top; 12 saw blade; 13 saw blade hole; 4 gaskets; 3 stops; 2 positioning blocks. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] The terms "first", "second" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprises" and similar words mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right", "front", "back" and the like are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly.

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0035] Example 1

[0036] The copper foil peeling strength sample preparation device of the copper clad laminate comprises a miniature table saw 1, a positioning block 2, a stop block set and a gasket set;

[0037] like Figure 1 As shown, a saw blade hole 13 extending forward and backward is opened in the middle of the table top 11 of the mini table saw 1;

[0038] The saw blade 12 of the mini table saw 1 passes through the saw blade hole 13 , and the edge of the saw blade 12 is higher than the table surface 11 ;

[0039] like Figure 3 As shown, the gasket set includes at least two gaskets 4 of different thicknesses;

[0040] The middle of the gasket 4 is provided with a front-to-back gasket hole that is consistent with the saw blade hole 13;

[0041] The thickness of the gasket 4 is less than the height of the edge of the saw blade 12 above the table top 11;

[0042] The block set includes at least two blocks 3 of different widths;

[0043] When the copper foil peeling strength sample making device of the copper clad laminate is used, Figure 2 As shown:

[0044] The gasket 4 is used to be fixed on the tabletop 11 of the mini table saw 1, so that the gasket hole of the gasket 4 overlaps with the position of the saw blade hole 13 on the tabletop 11 of the mini table saw 1, and the upper edge of the saw blade 12 protrudes out of the gasket hole of the gasket 4;

[0045] The positioning block 2 is used to be fixed on the left part of the tabletop 11 of the mini table saw 1;

[0046] The stop block 3 is used to be fixedly arranged between the positioning block 2 and the gasket 4, and the left end of the stop block 3 is fixedly abutted against the positioning block 2.

[0047] For the copper foil peeling strength sample making device of the first embodiment of the copper clad laminate, the stop block set includes multiple stop blocks 3 with different widths. Two stop blocks 3 with different widths are used in combination, so that the saw blade 12 of the mini table saw 1 can make grooves at different positions on the copper clad laminate sample 5, and a copper foil peeling strength sample with a certain width W can be obtained; the gasket set includes multiple gaskets 4 with different thicknesses. When the height of the edge of the saw blade 12 above the tabletop 11 is fixed, according to the different thicknesses of the copper foil 51 used on the surface of the copper clad laminate sample 5, a gasket 4 with a corresponding thickness is selected, so that the saw blade 12 protrudes out an appropriate height to cut off the copper foil 51 to obtain a copper foil peeling strength sample of the copper clad laminate.

[0048] The copper foil peeling strength sample making device of the first embodiment of the copper clad laminate has a simple structure and is easy to use. It can quickly and efficiently make a copper foil peeling strength sample of the copper clad laminate, and does not generate etching waste liquid.

[0049] The second embodiment

[0050] Based on the copper foil peeling strength sample making device of the first embodiment, the saw blade hole 13 and the gasket hole are rectangular.

[0051] 2]Preferably, the saw blade 12 of the mini table saw 1 is driven by a motor to rotate.

[0052] Preferably, the materials of the stop block 3 and the gasket 4 are wear-resistant materials such as stainless steel and ceramics.

[0053] The third embodiment

[0054] The copper foil peeling strength sample making method of the copper clad laminate using the copper foil peeling strength sample making device of the first embodiment includes the following steps:

[0055] S1. According to the thickness a of the copper foil 51 used in the copper clad laminate sample 5, determine the maximum height H of the edge of the saw blade 12 exposed above the tabletop 11 of the mini table saw 1, a + b0 < H < 1.1a + b1, where b0 is the minimum thickness of the gasket 4 and b1 is the maximum thickness of the gasket 4;

[0056] S2. According to the thickness a of the copper foil 51 used in the copper clad laminate sample 5 and the maximum height H of the edge of the saw blade 12 exposed from the table surface 11 of the micro table saw 1 to the table surface 11, select a spacer 4 with a corresponding thickness and fix it on the table surface 11 of the micro table saw 1, so that the hole on the spacer 4 overlaps with the position of the saw blade hole 13 on the table surface 11 of the micro table saw 1, where a + bs < H < 1.1a + bs, and bs is the thickness of the selected spacer 4, so that the saw blade 12 protrudes from the spacer 4 by an appropriate height;

[0057] S3. Select M stoppers 3. Any two stoppers among the M stoppers form a group, and the sum of the width differences of each group of stoppers and the edge thickness h of the saw blade 12 of the micro table saw 1 corresponds to the width W of N copper clad laminate copper foil peel strength samples required. M is an integer greater than 1, and N is a positive integer;

[0058] S4. Fix the positioning block 2 on the left part of the table surface 11 of the micro table saw 1, and the distance from the positioning block 2 to the spacer 4 is greater than the maximum width of the M stoppers 3;

[0059] S5. Fix and place a stopper 3 between the positioning block 2 and the spacer 4, and the left end of the stopper 3 is fixed against the positioning block 2;

[0060] S6. Press the reference edge of the copper clad laminate sample 5 against the right end of the stopper 3, and press the copper foil 51 to be sawn on the bottom surface of the copper clad laminate sample 5 tightly against the top surface of the spacer 4;

[0061] S7. Start the micro table saw 1 to rotate its saw blade 12, and push the copper clad laminate sample 5 uniformly in the front and back directions towards the saw blade 12, so that the saw blade 12 saws through the copper foil 51 to be sawn on the copper clad laminate sample 5;

[0062] S8. Keep the position of the positioning block 2 unchanged, replace the stopper 3, where Xb - Xf = |W + h|, Xb is the width of the newly replaced stopper, Xf is the width of the previous stopper, and h is the edge thickness of the saw blade 12 of the micro table saw 1, to obtain a copper clad laminate copper foil peel strength sample with the required width W;

[0063] S9. Repeat steps S6 - S8 to obtain the required number and width of copper clad laminate copper foil peel strength samples.

[0064] The method for fabricating a copper clad laminate copper foil peel strength sample in Example 3 can fabricate a copper clad laminate copper foil peel strength sample conveniently, quickly, accurately and efficiently, with low cost and without generating etched waste liquid

[0065] Example 4

[0066] Based on the method for fabricating a copper clad laminate copper foil peel strength sample in Example 3, the thickness a of the copper foil 51 used in the copper clad laminate sample 5 is 12 μm, the width W of the required copper clad laminate copper foil peel strength sample is 3 mm, and 4 strips are needed;

[0067] A gasket 4 with a thickness bs of H=13 μm is selected, and five stoppers 3 of different widths are selected from the stopper set. The widths of the five stoppers 3 are X1, X2, X3, X4, and X5, respectively. X5-X4=X4-X3=X3-X2=X2-X1=3 mm+h;

[0068] Fix the selected shim 4 on the table 11 of the mini table saw 1, fix the stopper 3 with a width of X1 on the positioning block 2, start the mini table saw 1 to rotate the saw blade 12, place the reference edge of the copper clad laminate sample 5 close to the stopper 3, and the copper foil 51 to be sawed close to the shim 4, and push the copper clad laminate sample 5 toward the saw blade 12 in the forward and backward direction at a constant speed, so that the saw blade 12 cuts through the copper foil 51;

[0069] Remove the stopper 3 with a width of X1, fix the stopper 3 with a width of X2 on the positioning block 2, and repeat the above copper foil sawing action;

[0070] Replace the stoppers 3 with widths of X3, X4, and X5 in sequence, and repeat the action of sawing the copper foil 51 to obtain four copper foil peeling strength samples with a width W of 3 mm. Figure 4 shown.

[0071] Example 5

[0072] Based on the method for preparing the copper foil peeling strength sample of the copper clad laminate in Example 3, the thickness a of the copper foil 51 used in the copper clad laminate sample 5 is 105 μm, and the required copper foil peeling strength sample width W is 3 mm, requiring 3 strips;

[0073] A gasket 4 with a thickness bs of H-106 μm is selected, and four stoppers 3 of different widths are selected from the stopper set. The widths of the four stoppers 3 are X1, X2, X3, and X4, respectively. X4-X3=X3-X2=X2-X1=3 mm+h;

[0074] Fix the selected shim 4 on the table 11 of the mini table saw 1, fix the stopper 3 with a width of X1 on the positioning block 2, start the mini table saw 1 to rotate the saw blade 12, place the reference edge of the copper clad laminate sample 5 close to the stopper 3, and the copper foil 51 to be sawed close to the shim 4, and push the copper clad laminate sample 5 toward the saw blade 12 in the forward and backward direction at a constant speed, so that the saw blade 12 cuts through the copper foil 51;

[0075] Remove the stopper 3 with a width of X1, fix the stopper 3 with a width of X2 on the positioning block 2, and repeat the above copper foil sawing action;

[0076] The stoppers 3 with widths of X3 and X4 were replaced in turn, and the operation of sawing the copper foil 51 was repeated to obtain three copper foil peeling strength samples of the copper clad laminate with a width W of 3 mm.

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A copper foil peeling strength sample preparation device for copper clad laminates, characterized in that: It includes a table saw (1), a positioning block (2), a stop block set and a gasket set; A saw blade hole (13) extending forward and backward is provided in the middle of the table top (11) of the table saw (1); The saw blade (12) of the table saw (1) passes through the saw blade hole (13), and the edge of the saw blade (12) is higher than the table surface (11); The gasket set includes at least two gaskets (4) of different thicknesses; A front-back gasket hole that is consistent with the saw blade hole (13) is opened in the middle of the gasket (4); The thickness of the gasket (4) is less than the height of the edge of the saw blade (12) above the table surface (11); The block set comprises at least two blocks (3) of different widths; When the copper foil peeling strength sample making device of the copper clad laminate is used: The gasket (4) is used to be fixed on the table (11) of the table saw (1), so that the gasket hole of the gasket (4) overlaps with the saw blade hole (13) of the table (11) of the table saw (1), and the upper edge of the saw blade (12) protrudes from the gasket hole of the gasket (4); The positioning block (2) is used to be fixed on the left part of the table (11) of the table saw (1); The stopper (3) is used to be fixedly arranged between the positioning block (2) and the gasket (4), and the left end of the stopper (3) is fixedly pressed against the positioning block (2).

2. The copper foil peeling strength sample preparation device of the copper clad laminate according to claim 1, characterized in that: The saw blade hole (13) and the gasket hole are rectangular.

3. The copper foil peeling strength sample preparation device of the copper clad laminate according to claim 1, characterized in that: The saw blade (12) of the table saw (1) is driven to rotate by a motor.

4. The copper foil peeling strength sample preparation device of the copper clad laminate according to claim 1, characterized in that: The materials of the stopper (3) and the gasket (4) are stainless steel or ceramic.

5. The copper foil peeling strength sample preparation device of the copper clad laminate according to claim 1, characterized in that: The block set comprises four blocks (3) of different widths.

6. The copper foil peeling strength sample preparation device of the copper clad laminate according to claim 1, characterized in that: The block set comprises five blocks (3) of different widths.

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