Substrate fixing jig
Through the design of the substrate fixing fixture, the problem of inaccurate printing of substrates in mass production is solved, accurate printing and efficient production of substrates are achieved, and costs are reduced.
Patent Information
- Application Number
- CN202422693044.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-11-06
AI Technical Summary
In the prior art, the deviation of X/Y/angle and height of the substrate cannot be effectively controlled during mass production, resulting in inaccurate solder paste printing, post-soldering quality problems, low production efficiency and high cost.
A substrate fixing fixture is designed, including a fixed base and a fixed clamping assembly. The bottom wall of the substrate is supported by a supporting protrusion and the side wall of the substrate is clamped by the clamping assembly, so that the substrate is fixed in the vertical and horizontal directions, and printing is completed when it rises to the printing position synchronously.
It achieves precise control of X/Y/angle and height during substrate printing, avoiding problems such as solder paste deviation, excessive tin or insufficient tin, improving production efficiency and product quality, and reducing long-term costs.
Smart Images
Figure CN223348871U_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present disclosure belong to the field of semiconductor packaging technology, and particularly relate to a substrate fixing fixture. Background Art
[0002] The substrate printing process supports chip packaging manufacturing. To achieve mass production and ensure product quality and efficiency, substrates are transported to the printing machine using a carrier for printing. In a matrix arrangement, it's impossible to control the X / Y angle and height deviations of each substrate. Printing quality issues can lead to product rework, resulting in costly returns, low yields, inefficient production, and high scrap rates.
[0003] Currently, there is no substrate fixing fixture that can meet the needs of mass production and ensure that solder paste is accurately printed on the substrate.
[0004] In view of the above problems, it is necessary to propose a substrate fixing fixture that has a reasonable design and can effectively improve the above problems. Utility Model Content
[0005] The embodiments of the present disclosure aim to solve at least one of the technical problems existing in the prior art and provide a substrate fixing jig.
[0006] The embodiment of the present disclosure provides a substrate fixing jig for substrate printing, comprising a fixing base, a carrier plate and a fixing clamping assembly;
[0007] At least one substrate is fixed on the carrier plate, and the carrier plate is used to transport the substrate to a stop position of the printing device;
[0008] The fixed base is provided with at least one supporting protrusion, which is used to support and fix to the corresponding bottom wall of the substrate when rising to the stop position, and to carry the substrate to continue rising to the marking point recognition position;
[0009] The fixing clamping assembly is used to clamp and fix the corresponding side wall of the substrate at the mark point identification position, and fix the substrate to the supporting protrusion; wherein,
[0010] When the fixed base and the fixed clamping assembly rise synchronously to the printing position, printing on the substrate is completed.
[0011] Optionally, the fixing clamping assembly includes a first clamping plate and a second clamping plate stacked from bottom to top and slidably connected;
[0012] The central area of the first clamping plate is provided with at least one first clamping groove, and the central area of the second clamping plate is provided with at least one second clamping groove;
[0013] The positions of the first clamping groove and the second clamping groove correspond to each other, and the sizes of the first clamping groove and the second clamping groove are both larger than the size of the substrate; wherein,
[0014] In the starting position, the substrate is located between the first clamping groove and the second clamping groove corresponding to it. When the first clamping groove and the second clamping groove slide relative to each other to the clamping position, the first clamping groove and the second clamping groove cooperate with each other to clamp and fix the side wall of the substrate.
[0015] Optionally, the edge area of the first splint is provided with a plurality of fixing columns, and the edge area of the second splint is provided with a plurality of sliding grooves, and corresponding fixing columns are slidably provided in the sliding grooves to enable the second splint to slide relative to the first splint.
[0016] Optionally, the length direction of the sliding groove is consistent with the diagonal direction of the second clamping plate, so that the second clamping plate can slide relative to the first clamping plate along its diagonal direction.
[0017] Optionally, limiting strips are provided at two adjacent groove walls of the first clamping groove along the sliding direction of the second clamping plate.
[0018] Optionally, a lower pressure plate is also included;
[0019] The lower pressing plate is used to press down on the top wall of the substrate to provide downward pressure to the top wall of the substrate after the fixing clamping assembly is clamped and fixed to the corresponding side wall of the substrate;
[0020] The lower pressing plate is further used to return to its original position after providing downward pressure to the top wall of the substrate.
[0021] Optionally, at least one groove is provided on a side of the lower pressing plate facing the substrate, and the groove corresponds to the position of the substrate.
[0022] Optionally, the fixed base is provided with a vacuum tube access port, and the vacuum tube access port is used to be connected to a vacuum source;
[0023] The supporting convex block is provided with a plurality of vacuum adsorption holes, the first ends of the plurality of vacuum adsorption holes are connected to the vacuum tube access port, and the second ends of the plurality of vacuum adsorption holes are used for adsorption on the substrate.
[0024] Optionally, at least one fixing groove is provided in the central area of the carrier plate, and the substrate is fixed in the fixing groove.
[0025] Optionally, there are multiple fixing slots.
[0026] The substrate fixing jig of the disclosed embodiment is fixed to the top wall of the corresponding substrate by the support protrusion of the fixed base and is clamped to the side wall of the corresponding substrate by the fixed clamping assembly, thereby respectively fixing the substrate in the vertical direction and the horizontal direction. When the fixed base and the fixed clamping assembly are synchronously raised to the printing position, the printing equipment completes the printing of the substrate. The substrate fixing jig of the disclosed embodiment can control the deviation of the X / Y / angle and height of each substrate during substrate printing, so that the solder paste can be accurately printed on the substrate, avoiding post-weld quality problems such as solder paste printing deviation, excessive tin, insufficient tin, and bridging caused by the inability to fix the substrate, improving turnover efficiency, ensuring product printing quality, zero scrap rate, one-time investment, and low long-term cost investment. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 This is a structural schematic diagram of a substrate fixing fixture according to one embodiment of the present disclosure;
[0028] Figure 2 It is a partial structural diagram of the first splint and the second splint in an embodiment of the present disclosure;
[0029] Figure 3 This is a structural diagram of the lower pressing plate in an embodiment of the present disclosure;
[0030] Figure 4 Schematic diagram of the structure of the fixed base in the embodiment of the present disclosure. DETAILED DESCRIPTION
[0031] In order to enable those skilled in the art to better understand the technical solutions of the embodiments of the present disclosure, the embodiments of the present disclosure are further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0032] like Figure 1 As shown, an embodiment of the present disclosure provides a substrate fixing jig 100 for substrate printing, comprising a fixing base 110 , a carrier plate 120 and a fixing clamping assembly 130 .
[0033] At least one substrate is fixed on the carrier plate 120 , and the carrier plate 120 is used to transport the substrate to a stop position of the printing device.
[0034] The fixed base 110 is provided with at least one supporting protrusion 111. The supporting protrusion 111 is used to support and fix to the bottom wall of the corresponding substrate when it rises to the stop position, and to support the substrate to continue to rise to the mark point recognition position. The number of supporting protrusions 111 corresponds to the number of substrates.
[0035] The fixing clamping assembly 130 is used to clamp and fix the corresponding side wall of the substrate at the marking point identification position, and fix the substrate to the supporting protrusion 111.
[0036] The printing on the substrate is completed when the fixed base 110 and the fixed clamping assembly 130 rise synchronously to the printing position.
[0037] Specifically, the substrate is fixed in the carrier 120, and the carrier 120 transports the substrate to the stop position of the printing equipment. After the transport track stop sensor senses the carrier 120, the fixed base 110 and the equipment workbench rise to the stop position, so that at least one supporting protrusion 111 on the fixed base 110 is supported and fixed on the corresponding bottom wall of the substrate. The supporting protrusion 111 carries the substrate and continues to rise to the marking point recognition position. The fixed clamping assembly 130 runs to the marking point recognition position and is clamped and fixed to the side wall of the substrate. At this time, the fixed clamping assembly 130 plays a role similar to that of a carrier. The supporting protrusion is supported and fixed on the bottom wall of the substrate, and the fixed clamping assembly 130 is clamped and fixed on the side wall of the substrate to achieve horizontal and vertical fixation of the substrate. The fixed base 110 and the fixed clamping assembly 130 rise synchronously to the printing position together with the equipment workbench. The equipment prints the solder paste onto the substrate through the scraper device to complete the printing of the substrate. After the substrate is printed, the printing equipment table descends to the track conveying height, the printed substrate is re-fixed in the carrier 120, and the equipment conveying motor is started to transport the carrier 120 with the substrate fixed thereon to the next process via the belt.
[0038] The substrate fixing jig of the disclosed embodiment is fixed to the top wall of the corresponding substrate by the support protrusion of the fixed base and is clamped to the side wall of the corresponding substrate by the fixed clamping assembly, thereby respectively fixing the substrate in the vertical direction and the horizontal direction. When the fixed base and the fixed clamping assembly are synchronously raised to the printing position, the printing equipment completes the printing of the substrate. The substrate fixing jig of the disclosed embodiment can control the deviation of the X / Y / angle and height of each substrate during substrate printing, so that the solder paste can be accurately printed on the substrate, avoiding post-weld quality problems such as solder paste printing deviation, excessive tin, insufficient tin, and bridging caused by the inability to fix the substrate, improving turnover efficiency, ensuring product printing quality, zero scrap rate, one-time investment, and low long-term cost investment.
[0039] For example, Figure 1 As shown, the fixing clamping assembly 130 includes a first clamping plate 131 and a second clamping plate 132 stacked from bottom to top, and the first clamping plate 131 and the second clamping plate 132 are slidably connected with each other.
[0040] At least one first clamping groove is provided in a central area of the first clamping plate 131 , and at least one second clamping groove 134 is provided in a central area of the second clamping plate 132 .
[0041] like Figure 1As shown, the first clamping groove and the second clamping groove 134 are positioned correspondingly, and together form a clamping groove A. The dimensions of the first clamping groove and the second clamping groove 134 are both larger than the dimensions of the substrate. Specifically, the first clamping groove and the second clamping groove 134 are also rectangular, but the dimensions of the first clamping groove and the second clamping groove 134 are larger than the dimensions of the substrate.
[0042] Among them, in the starting position, the substrate is located between the corresponding first clamping groove and the second clamping groove 134. When the first clamping groove and the second clamping groove 134 slide relative to each other to the clamping position, the first clamping groove and the second clamping groove 134 cooperate with each other to clamp and fix the side wall of the substrate.
[0043] Specifically, when the fixed clamping assembly 130 moves to the starting position at the substrate, the substrate is located in the corresponding first and second clamping grooves 134, and is located between the first and second clamping grooves 134 along the thickness direction of the clamping plate. The first clamping plate 131 and the second clamping plate 132 slide relative to each other, so that when the first and second clamping grooves 134 slide relative to each other to the clamping position, the first and second clamping grooves 134 respectively abut against the side walls of the substrate to clamp and secure the side walls of the substrate.
[0044] In this embodiment, the first clamping plate and the second clamping plate slide relative to each other, so that when the first clamping groove and the second clamping groove slide relative to each other to the clamping position, the first clamping groove and the second clamping groove cooperate with each other to clamp and fix the side wall of the substrate, thereby achieving horizontal fixation of the substrate.
[0045] For example, Figure 2 As shown, the edge area of the first clamping plate 131 is provided with multiple fixing columns 135, and the edge area of the second clamping plate 132 is provided with multiple sliding grooves 136. The corresponding fixing columns 135 are slidably provided in the sliding grooves 136 to enable the second clamping plate 132 to slide relative to the first clamping plate 131.
[0046] Furthermore, the length direction of the slide groove 136 is consistent with the diagonal direction of the second clamping plate 132, so that the second clamping plate 132 can slide along its diagonal direction relative to the first clamping plate 131. Specifically, as shown in the figure, in this embodiment, the second clamping plate 132 slides obliquely downward relative to the first clamping plate 131.
[0047] It should be noted that the sliding grooves 136 can be distributed at the corner ends of the second splint 132 or set in other edge areas. This embodiment does not specifically limit the position and number of the sliding grooves 136, and can be selected according to actual needs.
[0048] For example, Figure 1 and Figure 2As shown, the first clamping groove is provided with limit bars 140 at two adjacent groove walls along the sliding direction of the second clamping plate 132. The limit bars 140 can limit the substrate when the first clamping groove and the second clamping groove 134 slide to the clamping position.
[0049] For example, Figure 1 and Figure 3 As shown, the substrate fixing jig 100 further includes a lower pressing plate 150. The lower pressing plate 150 is configured to press down on the top wall of the substrate to apply downward pressure to the top wall of the substrate after the fixing clamping assembly 130 is clamped to the side wall of the corresponding substrate. The lower pressing plate 150 is also configured to return to its original position after applying downward pressure to the top wall of the substrate.
[0050] Specifically, after the support protrusions 111 of the fixed base 110 are supported and fixed to the bottom wall of the substrate and the fixed clamping assembly 130 is clamped to the side wall of the substrate, the lower pressure plate 150 moves from its original position to above the substrate and presses down on the substrate's top wall to apply downward pressure to the substrate, thereby correcting the horizontal warpage of the substrate. After the lower pressure plate 150 completes the downward pressure, it returns to its original position. At this time, the fixed base 110 and the fixed clamping assembly 130, together with the equipment worktable, rise synchronously to the printing position to start printing on the substrate.
[0051] For example, Figure 3 As shown, the side of the lower pressing plate 150 facing the substrate is provided with at least one groove 151, and the groove 151 corresponds to the position of the substrate. The substrate is located in the corresponding groove 151, thereby achieving precise downward pressing of the substrate.
[0052] For example, Figure 1 As shown, the fixed base 110 is provided with a vacuum tube access port for connecting to a vacuum source. The supporting bump 111 is provided with a plurality of vacuum adsorption holes 111a, the first ends of which are connected to the vacuum tube access port, and the second ends of which are used to be adsorbed on the substrate.
[0053] In this embodiment, the supporting protrusions are supported and fixed to the substrate by vacuum adsorption, which can achieve more stable fixation of the substrate in the vertical direction.
[0054] For example, Figure 1 As shown, the central region of the carrier plate 120 is provided with at least one fixing groove 121, into which the substrate is fixed. Preferably, in this embodiment, there are multiple fixing grooves 121. Accordingly, there are also multiple supporting protrusions 111. Specifically, the number of supporting protrusions 111 matches the number of fixing grooves 121. Accordingly, the number of first clamping grooves and second clamping grooves 134 matches the number of fixing grooves 121.
[0055] In this embodiment, if Figure 1 and Figure 2 As shown, the carrier plate has multiple fixing grooves, which can carry multiple substrates at a time. Accordingly, the number of supporting protrusions, first clamping grooves and second clamping grooves are all multiple, which can realize batch printing of substrates and improve the printing speed.
[0056] It is understood that the above embodiments are merely exemplary embodiments for illustrating the principles of the embodiments of the present disclosure, but the embodiments of the present disclosure are not limited thereto. Those skilled in the art may make various modifications and improvements without departing from the spirit and essence of the embodiments of the present disclosure, and such modifications and improvements are also considered to be within the scope of protection of the embodiments of the present disclosure.
Claims
1. A substrate fixing jig for substrate printing, characterized in that: It includes a fixed base, a carrier plate and a fixed clamping assembly; At least one substrate is fixed on the carrier plate, and the carrier plate is used to transport the substrate to a stop position of the printing device; The fixed base is provided with at least one supporting protrusion, which is used to support and fix to the corresponding bottom wall of the substrate when rising to the stop position, and to carry the substrate to continue rising to the marking point recognition position; The fixing clamping assembly is used to clamp and fix the corresponding side wall of the substrate at the mark point identification position, and fix the substrate to the supporting protrusion; wherein, When the fixed base and the fixed clamping assembly rise synchronously to the printing position, printing on the substrate is completed.
2. The substrate fixing jig according to claim 1, characterized in that: The fixing clamping assembly includes a first clamping plate and a second clamping plate stacked from bottom to top and slidably connected; The central area of the first clamping plate is provided with at least one first clamping groove, and the central area of the second clamping plate is provided with at least one second clamping groove; The positions of the first clamping groove and the second clamping groove correspond to each other, and the sizes of the first clamping groove and the second clamping groove are both larger than the size of the substrate; wherein, In the starting position, the substrate is located between the first clamping groove and the second clamping groove corresponding to it. When the first clamping groove and the second clamping groove slide relative to each other to the clamping position, the first clamping groove and the second clamping groove cooperate with each other to clamp and fix the side wall of the substrate.
3. The substrate fixing jig according to claim 2, characterized in that: The edge area of the first clamping plate is provided with a plurality of fixing columns, and the edge area of the second clamping plate is provided with a plurality of sliding grooves. The sliding grooves are slidably provided with corresponding fixing columns, so that the second clamping plate slides relative to the first clamping plate.
4. The substrate fixing jig according to claim 3, characterized in that: The length direction of the sliding groove is consistent with the diagonal direction of the second clamping plate, so that the second clamping plate can slide relative to the first clamping plate along its diagonal direction.
5. The substrate fixing jig according to claim 3, characterized in that: Limiting strips are provided at two adjacent groove walls of the first clamping groove along the sliding direction of the second clamping plate.
6. The substrate fixing jig according to any one of claims 1 to 3, characterized in that: Also included is a lower pressure plate; The lower pressing plate is used to press down on the top wall of the substrate to provide downward pressure to the top wall of the substrate after the fixing clamping assembly is clamped and fixed to the corresponding side wall of the substrate; The lower pressing plate is further used to return to its original position after providing downward pressure to the top wall of the substrate.
7. The substrate fixing jig according to claim 6, characterized in that: At least one groove is provided on a side of the lower pressing plate facing the base plate, and the groove corresponds to the position of the base plate.
8. The substrate fixing jig according to any one of claims 1 to 3, characterized in that: The fixed base is provided with a vacuum tube access port, and the vacuum tube access port is used to be connected to a vacuum source; The supporting convex block is provided with a plurality of vacuum adsorption holes, the first ends of the plurality of vacuum adsorption holes are connected to the vacuum tube access port, and the second ends of the plurality of vacuum adsorption holes are used for adsorption on the substrate.
9. The substrate fixing jig according to any one of claims 1 to 3, characterized in that: At least one fixing groove is provided in the central area of the carrier plate, and the substrate is fixed in the fixing groove.
10. The substrate fixing jig according to claim 9, characterized in that: There are multiple fixing slots.