A general jig for ceramic packaging

Abstract

The application provides a universal tool for ceramic packaging, which comprises a base and a first positioning member and a second positioning member arranged on the base. A placing groove is formed between the first positioning member and the second positioning member, and the placing groove is used for placing a packaging piece to be laser printed. The first positioning member is adjustable based on the transverse position of the base, so that the size of the placing groove is adjusted. The slot of the placing groove has a first placing part and a second placing part which are arranged oppositely and are in the same horizontal plane. The first placing part is formed on the first positioning member, and the second placing part is formed on the second positioning member. The first placing part and the second placing part are used for placing the pins of the packaging piece to be laser printed. The universal tool for ceramic packaging disclosed by the application can be compatible with CSOP and CQFP packaging products of different sizes and different pin heights, and has a wide range of applications. For the CSOP and CQFP packaging products of the same size, the repeated laser printing operation can ensure the repeated precision of the product placement.

Description

Technical Field

[0001] This invention belongs to the field of electronic product processing technology, and specifically relates to a universal tooling for protecting heat sinks and pins during laser printing of ceramic packaging. Background Technology

[0002] During the laser printing process, electronic products are prone to problems such as laser misalignment, heat sink movement and scratches, pin extrusion and deformation, surface damage, and surface contamination.

[0003] Currently, the two common practices in the industry for laser printing of CSOP and CQFP packaged products are:

[0004] (1) Customize special tooling according to the different external dimensions of the product;

[0005] (2) Using manual cutting, different shapes and sizes are cut out on a hard plate, and the laser printing fixture is achieved by fixing the product shape.

[0006] These two tooling methods have the following problems in practical use:

[0007] (1) Unlike mass-produced plastic encapsulated products, ceramic encapsulated products are characterized by a wide variety of products in small batches. These products come in diverse types and sizes, and the quantity encapsulated at one time is relatively small. Customizing special tooling for each encapsulation type and size would result in long processing cycles and high costs. If urgent orders require processing but suitable tooling is unavailable, it would inevitably impact the customer's schedule. Furthermore, the high processing fees for custom tooling also increase production costs. In addition, the numerous types of tooling would occupy a significant amount of material storage space, increasing management costs.

[0008] (2) The tooling method of manually cutting rigid boards has greatly improved its flexibility compared with customized tooling. It does not require customized tooling for different types of components. However, because it adopts the method of drilling holes and embedding, the protection of the product is not as good as that of customized tooling. The pins of the product are very easy to deform during the process of transfer, placement, printing, etc., which has a great impact on product quality and customer application.

[0009] Therefore, there is an urgent need for a practical, flexible, and highly operable universal tooling for packaging products. Summary of the Invention

[0010] The purpose of this invention is to provide a universal tooling for ceramic packaging, which solves the problems that easily occur in the laser printing of ceramic packaging products in the prior art, such as laser misalignment, heat sink movement and scratches, pin extrusion and deformation, surface damage and contamination. This universal tooling is also compatible with CSOP and CQFP packaged products of different sizes and pin heights, and has a wide range of applications.

[0011] To achieve the above objectives, the present invention provides a universal tooling for ceramic packaging, which includes a base and a first positioning member and a second positioning member disposed on the base.

[0012] A storage slot is formed between the first positioning member and the second positioning member, and the storage slot holds the package to be laser printed; the first positioning member is adjustable based on the lateral position of the base to adjust the size of the storage slot; the opening of the storage slot has a first storage part and a second storage part that are on the same horizontal plane and arranged opposite to each other, the first storage part is formed on the first positioning member, the second storage part is formed on the second positioning member, and the first storage part and the second storage part hold the pins of the package to be laser printed.

[0013] In some embodiments, the base is provided with a mounting portion, which has a first slide rail and a second slide rail disposed opposite to each other, and a first positioning member is slidably mounted on the first slide rail and the second slide rail of the mounting portion.

[0014] In some embodiments, the first slide rail and the second slide rail are protrusions respectively provided on the mounting part, and the bottom of the first positioning member is provided with a groove that mates with the protrusion.

[0015] In some embodiments, the base is further provided with a limiting member. The first positioning member has a transverse limiting through hole. The limiting member passes through the limiting through hole and is installed on the base. One end of the limiting member is provided with a fastener. The fastener enables the first positioning member to slide or not slide relative to the base.

[0016] In some embodiments, the limiting member is a rod-shaped object with threads at one end, and the fastener is a nut, which is screwed onto the threaded end of the limiting member; the limiting through hole has a stepped ring, and the nut is engaged with the stepped surface.

[0017] In some embodiments, the edges of the first and second storage portions are chamfered.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The universal ceramic packaging fixture disclosed in this invention utilizes a storage slot located between a first positioning member and a second positioning member on a base. The first positioning member is adjustable based on the lateral position of the base, allowing for adjustment of the size of the storage slot. This storage slot holds the package to be laser-printed. On one hand, the adjustable size of the storage slot in this universal fixture enables it to be compatible with CSOP and CQFP packaged products of different sizes and pin heights, thus broadening its application range. On the other hand, for CSOP and CQFP packaged products of the same size, it ensures consistent placement accuracy during repetitive laser printing operations.

[0020] 2. Because the universal tooling of ceramic packaging can adapt to laser-printed products of different shapes and sizes, the processing cycle of laser-printed product tooling is shortened, production efficiency is improved, and tooling manufacturing costs are saved.

[0021] 3. The slot opening has a first placement part and a second placement part that are on the same horizontal plane and arranged opposite each other. The first placement part and the second placement part place the pins of the package to be laser printed. They can clamp and fix the side of the product shell without affecting the pins. Under the premise of ensuring stability, they avoid heat sinks and pin scratches caused by friction movement of the laser printed product. Attached Figure Description

[0022] Figure 1 A schematic diagram of a general-purpose tooling for ceramic packaging is shown.

[0023] Figure 2 A schematic diagram of the first positioning component is shown. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this application will be clearly and completely described below in conjunction with the accompanying drawings.

[0025] This embodiment provides a universal tooling for ceramic packaging, such as... Figure 1 , Figure 2 As shown, the universal tooling includes a base 1 and a first positioning member 2 and a second positioning member 3 disposed on the base 1. A storage groove 4 is formed between the first positioning member 2 and the second positioning member 3, and the storage groove 4 is used to place the package to be laser printed.

[0026] The first positioning member 2 is adjustable based on the lateral position of the base 1 to adjust the size of the storage slot 4; the slot opening of the storage slot 4 has a first storage part 201 and a second storage part 301 that are on the same horizontal plane and arranged opposite to each other. The first storage part 201 is formed on the first positioning member 2, and the second storage part 301 is formed on the second positioning member 3. The first storage part 201 and the second storage part 301 place the pins of the package to be laser printed.

[0027] The second positioning component 3 can be fixed to the end of the base 1 with screws.

[0028] The storage slot 4 can clamp the side of the outer shell of the package to be laser-printed, thereby fixing the package (ceramic package product) to be laser-printed. The first storage part 201 and the second storage part 301 hold the pins of the package to be laser-printed. The edges of the first storage part 201 and the second storage part 301 are provided with chamfers 2010. The chamfers 2010 can prevent the leads from contacting the edge of the storage slot 4 and causing scratches on the leads. Therefore, the universal tooling for fixing ceramic packages provided in this embodiment avoids heat sinks and pin scratches caused by frictional movement of the package to be laser-printed while ensuring stable clamping.

[0029] The size of the storage slot 4 can be adjusted by adjusting the lateral position of the first positioning member 2 on the base 1, thus enabling the universal tooling to adapt to laser-printed packages of different shapes and sizes (such as CSOP and CQFP packages), making it widely applicable. The use of this universal tooling can shorten the processing cycle of laser-printed product tooling, improve production efficiency, and save tooling manufacturing costs.

[0030] For CSOP and CQFP packaged products of the same size, the first positioning component 2, whose position has been adjusted, will be fixed on the base 1 and will not move easily. Therefore, the space size of the storage slot 4 is relatively stable. When performing repetitive laser printing operations, it can ensure the accuracy of products repeatedly placed on the storage slot 4 at different times.

[0031] In practical implementation, the base 1 and the first positioning component 2 and the second positioning component 3 installed on the base 1 can both be made of AISI 304 material. AISI 304 material has good corrosion resistance and heat resistance, good low-temperature strength performance, and can be reused. Other materials with the same or similar properties as AISI 304 material can also be used to process the base 1, the first positioning component 2, and the second positioning component 3.

[0032] The following details the specific connection structure of the base 1, the first positioning component 2, and the second positioning component 3.

[0033] The first positioning member 2 is adjustable in lateral position based on the base 1. Specifically, a recessed mounting portion 101 is provided on the base 1. The bottom of the mounting portion 101 has symmetrically arranged first slide rails 102 and second slide rails 103 on opposite sides. The first positioning member 2 is slidably mounted on the first slide rails 102 and second slide rails 103 of the mounting portion 101. Specifically, the first slide rails 102 and second slide rails 103 are protrusions opposite each other on the mounting portion 101. The bottom of the first positioning member 2 has a groove 202 that mates with the protrusion. The protrusion can be rectangular stepped or of other shapes, and the groove 202 of a corresponding shape is provided where the first positioning member 2 mates with the protrusion. The mating structure of the groove 202 and the protrusions, first slide rails 102, and second slide rails 103 ensures the adjustable lateral position of the first positioning member 2 based on the base 1.

[0034] Furthermore, when the first positioning member 2 slides to the desired position on the base 1, the limiting member 5 can tightly connect the first positioning member 2 and the base 1. The limiting member 5 is fixedly connected to the base 1, and the first positioning member 2 is provided with a transverse limiting through hole 203 through which the limiting member 5 passes. A fastener 6 is then provided at the top of the limiting member 5, which enables a tight connection between the first positioning member 2 and the base 1 or allows the first positioning member 2 to slide relative to the base 1. The sliding distance of the first positioning member 2 relative to the base 1 is determined by the transverse diameter of the limiting through hole 203. In order to accommodate laser-printed packages of different shapes and sizes, the transverse diameter of the limiting through hole 203 can be set to be larger, allowing the first positioning member 2 to adjust its transverse position relative to the base 1 by a greater distance.

[0035] In practice, the bottom end of the limiting member 5 can be fixed to the base 1 by welding or other methods. The limiting member 5 can be a rod-shaped object with threads at the top, and the fastener 6 is a nut. After the limiting member 5 passes through the limiting through hole 203, the nut is screwed onto the threaded end of the limiting member 5. A step 2030 is provided inside the limiting through hole 203, and the nut is secured to the surface of the step 2030. Needless to say, the height of the threaded end of the limiting member 5 is higher than the surface of the step 2030 inside the limiting through hole 203. To achieve a tight connection between the first positioning member 2 and the base 1, simply tighten the nut to press it against the surface of the step 2030; to allow the first positioning member 2 to slide relative to the base 1, simply tighten the nut so that it is no longer pressed against the surface of the step 2030.

[0036] Furthermore, the lateral position adjustment structure of the first positioning member 2 based on the base 1 in this invention is merely an exemplary structure and is not intended to limit the invention. Various modifications and variations can be made to this invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A ceramic packaged general tool characterized by, The base and the first and second positioning members arranged on the base are included, and a placing groove is formed between the first and second positioning members, and the placing groove is used for placing a laser printing package; the first positioning member is adjustable based on the transverse position of the base, so as to adjust the size of the placing groove; the slot of the placing groove has a first placing part and a second placing part arranged oppositely on the same horizontal plane, the first placing part is formed on the first positioning member, and the second placing part is formed on the second positioning member; the first and second placing parts are used for placing the pins of the laser printing package; The base is provided with a concave mounting part, the mounting part has a first sliding rail and a second sliding rail arranged oppositely, and the first positioning member is slidingly mounted on the first and second sliding rails of the mounting part; the first and second sliding rails are protrusions arranged oppositely on the mounting part, and the first positioning member is provided with a groove matched with the protrusions; The base is further provided with a limiting member, the first positioning member is provided with a transverse limiting through hole, the limiting member is mounted on the base through the limiting through hole, one end of the limiting member is provided with a fastener, and the fastener is used for sliding or not sliding the first positioning member relative to the base; The placing groove clamps the side edge of the shell of the laser printing package, so as to fix the laser printing package, and the pins of the laser printing package are placed in the first and second placing parts.

2. A general tool for ceramic packaging according to claim 1, wherein, The limiting member is a rod-shaped object with a thread at one end, the fastener is a nut, and the nut is screwed on the threaded end of the limiting member; the limiting through hole is provided with a step, and the nut is clamped on the surface of the step.

3. A general tool for ceramic packaging according to claim 2, wherein The edges of the first and second placing parts are provided with chamfers.

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