A tool for manually picking up a chip

Abstract

A kind of tool for picking chip manually, characterized by: comprising a hollow pen holder, detachably connected with a dispensing needle head at the front end of the hollow pen holder, the needle head front end of the dispensing needle head is provided with a bending part, the included angle between the bending part and the rear part of the dispensing needle head is 120-150 degrees;A suction nozzle is sleeved on the bending part, the length of the suction nozzle is greater than the length of the bending part, which is used to play a buffering role;A radial hole is provided at the front part of the hollow pen holder, which is communicated with the center hole of the hollow pen holder, for controlling the pick-and-place of chip.The beneficial effects are: flexible and convenient to use, suitable dispensing needle head can be selected according to the size of chip, various specifications of chip can be picked up, especially small chip;The contact area between suction nozzle and chip is small, the direction and angle can be seen when picking up chip, especially suitable for manual bonding;It can completely replace the way of picking up chip with tweezers, avoid damage to chip, no longer appear such as scratch, edge collapse, crack and other damage, eliminate potential hazards, and protect product quality.

Description

Technical Field

[0001] This utility model relates to a tool, and more particularly to a tool for manually picking up chips. Background Technology

[0002] As is well known, due to the unavailability of vacuum nozzles with a diameter of less than 3mm, chips smaller than this size are commonplace in actual production. Therefore, manually picking up tiny chips has always been a major challenge in semiconductor packaging. Currently, when manually bonding products, the tiny chip is first poured out of the waffle box, and then tweezers are used to pick up the chip and place it in the bonding area of ​​the package. This method has the following three problems: First, the stacking of chips when pouring them out of the waffle box can cause surface scratches; second, improper force when using tweezers can cause micro-cracks on the chip edges; and third, if there are unused chips after pouring them out, there is a risk of secondary damage when using tweezers to put them back into the waffle box.

[0003] Based on the above, designing a suitable tool to replace tweezers for picking up microchips is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a simple and easy-to-use tool for manually picking up chips, which can avoid micro-cracks on the chip edges, eliminate potential hazards, and ensure product quality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A tool for manually picking up chips includes a hollow pen barrel with a dispensing needle detachably connected to its front end. The dispensing needle has a bent section at its front end, with the angle between the bent section and the rear end of the dispensing needle being 120 to 150 degrees to facilitate chip picking. A suction nozzle is fitted onto the bent section, the length of which is greater than the length of the bent section, to serve as a buffer.

[0007] A radial hole is provided at the front of the hollow pen barrel, which is connected to the central hole of the hollow pen barrel and is used to control the placement and removal of the chip.

[0008] As a further preferred embodiment, the hollow pen barrel is composed of a pen barrel body and an air tube connector connected to the rear end of the pen barrel body. The front end of the pen barrel body is tapered to facilitate the insertion of an adhesive dispensing needle.

[0009] As a further preferred embodiment, the front part of the pen body is a triangular pyramid shape, and the radial hole is provided on one facet of the triangular pyramid to facilitate gripping and operation.

[0010] As a further preferred embodiment, the rear end of the endotracheal connector is tapered to facilitate insertion into the endotracheal tube of the vacuum system.

[0011] As a further preferred embodiment, the suction nozzle is a paper tube rolled and glued together from a piece of antistatic paper. The suction nozzle is fitted onto the bent part and tightened with a leather sleeve to improve the suction effect and facilitate replacement.

[0012] The beneficial effects of this utility model are:

[0013] 1. Flexible and convenient to use, the appropriate dispensing needle can be selected according to the chip size to pick up chips of various specifications, especially micro chips; the contact area between the nozzle and the chip is small, and the tip of the dispensing needle has a bent section, which makes it easy to see the direction and angle when picking up the chip, which is especially suitable for manual bonding; it can completely replace the way of picking up chips with tweezers, avoiding damage to the chip, eliminating damage such as scratches, chipping, cracks, etc., eliminating potential hazards and ensuring product quality.

[0014] 2. The chips can be removed as needed during bonding, saving the chip removal process and shortening operation time; the chips are no longer removed and are stored intact in the waffle box, so there is no secondary damage to unused chips. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a diagram showing the connection between the dispensing needle and the nozzle.

[0017] In the diagram: pen body 1, radial hole 101, air tube connector 2, glue dispensing needle 3, bending part 301, leather sleeve 4, suction nozzle 5. Detailed Implementation

[0018] The embodiments of this patent are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this patent, and should not be construed as limiting this patent.

[0019] like Figures 1-2 As shown, this utility model relates to a tool for manually picking up chips, comprising a hollow pen barrel. The hollow pen barrel consists of a pen barrel body 1 and an air tube connector 2 connected to the rear end of the pen barrel body 1 by threads. The front end of the pen barrel body 1 is tapered to facilitate the insertion of a dispensing needle. The rear end of the air tube connector 2 is tapered to facilitate the insertion of an air tube from a vacuum system.

[0020] A dispensing needle 3 is detachably inserted into the front end of the hollow pen body 1. A bent section 301, 5mm in length, is machined at the front end of the dispensing needle 3, forming an angle of 120-150 degrees with the rear part of the dispensing needle 3 to facilitate chip pickup. The specifications of the dispensing needle 3 are selected according to the area of ​​the chip to be picked up, with the specific correspondence as follows:

[0021] needle specifications 14G 17G 22G 24G Inner diameter 1.55mm 1.11mm 0.52mm 0.3mm outer diameter 1.85mm 1.49mm 0.82mm 0.55mm chip area <![CDATA[≥9mm 2 ]]> <![CDATA[≥4mm 2 ]]> <![CDATA[≥1mm 2 ]]> <![CDATA[≤1mm 2 ]]>

[0022] A suction nozzle 5 is fitted onto the bent portion 301. The length of the suction nozzle 5 is greater than the length of the bent portion, which serves as a buffer to prevent the dispensing needle 3 from scratching the chip. The suction nozzle 5 is a paper tube rolled and glued together from a piece of antistatic paper. The suction nozzle 5 is fitted onto the bent portion and tightened by a leather sleeve 4 to improve the suction effect and facilitate replacement.

[0023] A radial hole 101 is provided at the front of the hollow pen body 1, which communicates with the central hole of the hollow pen body for controlling the placement and removal of the chip. The front of the pen body 1 is a triangular pyramid, and the radial hole 101 is located on one facet of the triangular pyramid to facilitate gripping and operation.

[0024] In use, connect the assembled tool to the air hose of the vacuum system via air hose connector 2. Turn on the vacuum pump power of the vacuum system to start the vacuum pump, generating negative pressure inside the hollow pen barrel. Hold the hollow pen barrel and cover the radial hole with your index finger. Bring the tip of the suction nozzle 5 close to the chip to be picked up, and the chip in the waffle box will be picked up to the designated position. After picking it up, remove your index finger from the radial hole to release the picked-up chip.

[0025] After picking up the chip, remove the dispensing needle 3 and nozzle 5 and place them in a resealable bag. Replace the nozzle 5 promptly if it becomes contaminated or damaged.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tool for manually picking up chips, characterized in that: It includes a hollow pen barrel, with a dispensing needle detachably connected to the front end of the hollow pen barrel. The front end of the dispensing needle has a bent section with an angle of 120 to 150 degrees between the bent section and the rear end of the dispensing needle to facilitate chip pickup. A suction nozzle is fitted on the bent section, and the length of the suction nozzle is greater than the length of the bent section to serve as a buffer. A radial hole is provided at the front of the hollow pen barrel, which is connected to the central hole of the hollow pen barrel and is used to control the placement and removal of the chip.

2. The tool for manually picking up chips according to claim 1, characterized in that: The hollow pen barrel consists of a pen barrel body and an air tube connector connected to the rear end of the pen barrel body. The front end of the pen barrel body is tapered to facilitate the insertion of a dispensing needle.

3. The tool for manually picking up chips according to claim 2, characterized in that: The front part of the pen body is a triangular pyramid shape, and the radial hole is located on one facet of the triangular pyramid to facilitate gripping and operation.

4. The tool for manually picking up chips according to claim 2, characterized in that: The rear end of the endotracheal connector is tapered to facilitate connection to the endotracheal tube of the vacuum system.

5. A tool for manually picking up chips according to any one of claims 1-4, characterized in that: The suction nozzle is a paper tube rolled and glued together from a piece of antistatic paper. The suction nozzle is fitted onto the bent part and tightened with a leather sleeve to improve the suction effect and facilitate replacement.

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