WO2023020102A1 - 芯片吸取工具 - Google Patents

芯片吸取工具 Download PDF

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Publication number
WO2023020102A1
WO2023020102A1 PCT/CN2022/099461 CN2022099461W WO2023020102A1 WO 2023020102 A1 WO2023020102 A1 WO 2023020102A1 CN 2022099461 W CN2022099461 W CN 2022099461W WO 2023020102 A1 WO2023020102 A1 WO 2023020102A1
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WIPO (PCT)
Prior art keywords
telescopic rod
inner hole
elastic
chip
rod
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PCT/CN2022/099461
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English (en)
French (fr)
Inventor
朱魏
龙华
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Lansus Technologies Inc
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Lansus Technologies Inc
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Publication date
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Publication of WO2023020102A1 publication Critical patent/WO2023020102A1/zh
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
    • H10P72/00—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof
    • H10P72/70—Handling or holding of wafers, substrates or devices during manufacture or treatment thereof for supporting or gripping

Definitions

  • the present application relates to the technical field of radio frequency chip debugging, in particular to a chip suction tool.
  • radio frequency chip One of the cores of radio frequency technology is the radio frequency chip. During the production process of radio frequency chips, various debuggings are required.
  • the RF chip debugging process is as follows: After cutting the wafer, use tools such as tweezers to pick up the chip, and solder it to the test substrate with silver paste, then connect the test chip through the gold wire, and judge whether the selected chip is good or not by testing the output performance. meet design requirements. When the performance does not meet the requirements, it is necessary to replace the version with a different circuit structure to test again.
  • the RF chip is very thin and fragile, and the chip needs to be re-clamped every time it is replaced. In the process of using tweezers and other tools to pick up the chip, excessive force will destroy the integrity and function of the chip, which is difficult for the operator to control the force and inconvenient to operate.
  • the chip pick-up tool provided by this application includes:
  • the shell includes a stepped inner hole penetrating along the axis;
  • the telescopic rod passes through the stepped inner hole, its first end extends outside the large diameter end of the stepped inner hole, and its second end extends outside the small diameter end of the stepped inner hole. Axial movement of the housing;
  • An elastic suction cup is arranged outside the small-diameter end of the stepped inner hole, connected to the second end of the telescopic rod, and can move with the telescopic rod along the axial direction of the housing;
  • the elastic limiting device is provided inside the step-shaped inner hole, and the ring is set on the outside of the telescopic rod, and is fixed or released during the movement of the telescopic rod.
  • the diameter of the suction cup is larger than the diameter of the small diameter end of the stepped inner hole.
  • the housing includes a groove outside the small diameter end of the stepped inner hole, and the width of the groove is smaller than the diameter of the elastic suction cup.
  • the telescopic pole includes:
  • the first rod part is connected with the elastic suction cup
  • the second rod part is connected with the first rod part and has a diameter larger than that of the first rod part.
  • the elastic limiting device includes:
  • An elastic member is looped around the outside of the first rod, one end is connected to the connection between the first rod and the second rod, and the other end is connected to the step surface of the stepped inner hole;
  • the rotation limiting component is connected with the second rod.
  • the rotation limiting component includes:
  • the guide rail is arranged on the large-diameter end side wall of the stepped inner hole;
  • the push rod is arranged in the large diameter of the stepped inner hole, and one end protrudes from the stepped inner hole, and can move linearly along the guide rail;
  • One end of the sliding sleeve is connected with the second rod part, and the other end is matched with the push rod, and can rotate and linearly move in the stepped inner hole under the action of the push rod and the elastic component.
  • the rotation limiting member when the rotation limiting member is pressed by an external force so that the telescopic rod moves along the first end toward the second end, the elastic member is compressed; When the external force is removed, under the elastic force of the elastic member, the rotation limiting member rotates to lock the telescopic rod.
  • the rotation limiting member when the rotation limiting member continues to be pressed, the rotation limiting member continues to rotate and unlock; the telescopic rod moves along the second end moves in the direction of the first end.
  • the shell outside the first rod has a conical shape
  • the shell outside the second rod has a cylindrical shape
  • the material of the shell or the telescopic pole includes: carbon fiber.
  • the head of the chip suction tool provided by this application is provided with a suction cup.
  • a suction cup When sucking the chip, press the telescopic rod of the chip suction tool, and the suction cup head of the telescopic rod will stretch out, so that the suction cup can be closely attached to the chip to suck the chip; press the chip again to suck the chip.
  • the telescopic rod of the tool is retracted into the shell, and the sucker is blocked by the end of the shell of the chip suction tool to be deformed, and the chip is released after a gap is formed between the chip and the chip. Simple operation and good repeatability.
  • FIG. 1 shows a schematic diagram of a chip picking tool according to an exemplary embodiment of the present application
  • Figure 2 shows a schematic diagram of a housing according to an exemplary embodiment of the present application
  • Fig. 3 shows a schematic diagram of a telescopic rod and an elastic limiting device according to an exemplary embodiment of the present application
  • Fig. 4 shows a schematic diagram of an elastic suction cup according to an exemplary embodiment of the present application
  • FIG. 5 shows a partial schematic diagram of a chip picking tool according to an exemplary embodiment of the present application
  • Fig. 6A shows a schematic diagram of a rotation limiting component according to an exemplary embodiment of the present application
  • Fig. 6B shows a schematic diagram of a sliding sleeve according to an exemplary embodiment of the present application
  • Figure 6C shows a schematic diagram of a push rod according to an exemplary embodiment of the present application.
  • Fig. 7 shows a schematic diagram of a chip suction state of a chip suction tool according to an exemplary embodiment of the present application
  • Fig. 8 shows a schematic diagram of a state where a chip suction tool releases a chip according to an exemplary embodiment of the present application.
  • the radio frequency chip is small in size, thin and fragile, and can only be picked up by tweezers at present.
  • the chip may be damaged if the force is too large, and the chip may slip if the force is too small.
  • the application intends to provide a chip picking tool, which can quickly pick up or release the chip through the suction cup.
  • Fig. 1 shows a schematic diagram of a chip pick-up tool according to an exemplary embodiment of the present application
  • Fig. 2 shows a schematic diagram of a housing according to an exemplary embodiment of the present application
  • Fig. 3 shows a schematic diagram of a telescopic rod and an elastic limiting device according to an exemplary embodiment of the present application
  • FIG. 4 shows a schematic diagram of an elastic suction cup according to an exemplary embodiment of the present application
  • FIG. 5 shows a partial schematic diagram of a chip suction tool according to an exemplary embodiment of the present application.
  • the chip testing tool 1000 includes a housing 100 , a telescopic rod 200 , and an elastic limiting device.
  • the casing 100 is a hollow casing, and a stepped inner hole penetrating along the axis is provided inside.
  • the housing 100 may include a conical section 110 and a circular section 120 for the convenience of the operator to hold.
  • the large diameter portion 121 of the stepped inner hole is distributed in the circular section 120
  • the small diameter portion 111 of the stepped inner hole is distributed in the tapered section 110 .
  • the shape of the telescopic rod 200 is also stepped, matching with the stepped inner hole of the housing 100 .
  • the telescopic rod 200 includes a first rod part 210 and a second rod part 220 , the second rod part 220 is connected with the first rod part 210 and has a diameter larger than that of the first rod part 210 .
  • the telescopic rod 200 passes through the stepped inner hole of the housing 100, the second rod portion 220 extends outside the large diameter end 121 of the stepped inner hole, and the first rod portion 210 extends outside the small diameter end 111 of the stepped inner hole .
  • the telescopic rod 200 can move along the axis in the casing 100 .
  • the elastic limiting device is arranged inside the step-shaped inner hole and is connected with the telescopic rod 200 to fix or release the telescopic rod 200 during its movement.
  • An elastic suction cup 240 is provided at the end of the telescopic rod 200 , connected to the first rod part 210 , and arranged outside the tapered section 110 of the housing 100 , and can move along the axial direction of the housing 100 with the telescopic rod 200 .
  • the diameter of the elastic suction cup 240 is larger than the diameter of the small diameter end 111 of the stepped inner hole of the housing 100 .
  • the housing 100 includes a groove 130 outside the small diameter end 111 of the stepped bore.
  • the width of the groove 130 is smaller than the diameter of the elastic suction cup 240, so that when the elastic suction cup 240 follows the telescopic rod 200 from the small-diameter end 111 of the stepped inner hole to the large-diameter end 121 of the stepped inner hole, it is blocked so that the elastic The suction cup 240 is deformed, and finally the chip is detached from the elastic suction cup 240 .
  • the elastic limiting device includes an elastic component 310 and a rotation limiting component.
  • the elastic member 310 is looped around the outside of the first rod part 210, one end is connected to the junction of the first rod part 210 and the second rod part 220, and the other end is connected to the stepped surface of the stepped inner hole.
  • the elastic member 310 is compressed between the junction of the first rod part 210 and the second rod part 220 and the stepped surface of the stepped inner hole.
  • the elastic member 310 may be a spring, which is not limited by the present application.
  • the rotation limiting component includes a guide rail (not shown in the figure), a sliding sleeve 320 and a push rod 330 .
  • the guide rail is fixedly arranged on the large-diameter end side wall of the stepped inner hole.
  • the push rod 330 is arranged in the large diameter of the stepped inner hole, one end protrudes from the stepped inner hole, and can move linearly along the guide rail.
  • One end of the sliding sleeve 320 is connected to the second rod portion 220 , and the other end is matched with the push rod 330 . Under the action of the push rod 330 and the elastic member 310 , it can rotate and move linearly in the stepped inner hole. Under the action of the elastic component 310 , the sliding sleeve 320 is in close contact with the push rod 330 .
  • a pressing portion may also be provided at one end of the push rod 330 protruding from the stepped inner hole.
  • the pressing part is located outside the large diameter end 121 of the stepped inner hole of the housing 100 .
  • the pressing part may be in the shape of a disc as shown in the figure, or in other shapes, such as a spherical shape, which is not limited in the present application.
  • Fig. 6A is a schematic diagram of a rotation limiting component according to an exemplary embodiment of the present application
  • Fig. 6B is a schematic diagram of a sliding sleeve according to an exemplary embodiment of the present application
  • Fig. 6C is a schematic diagram of a push rod according to an exemplary embodiment of the present application.
  • the guide rail 340 of the rotation limiting component is fixedly arranged on the large-diameter end sidewall of the stepped inner hole (ie, inside the circular section 120 ).
  • One end of the push rod 330 protrudes from the stepped inner hole and can move linearly along the guide rail 340 .
  • One end of the sliding sleeve 320 is in close contact with the second rod 220 under the action of the elastic force of the elastic component, and the other end is matched with the push rod 330. Under the action of the push rod 330 and the elastic component, it can rotate and straighten in the stepped inner hole. sports.
  • the elastic member In the initial state, the elastic member is in a contracted state.
  • the push rod 330 pushes the sliding sleeve 320 along the first end (ie, the large diameter end 121 of the stepped inner hole of the housing 100) to the second end. (that is, the small-diameter end 111 of the stepped inner hole of the housing 100) moves to the tip position (critical point) at the bottom of the guide rail 340 .
  • the sliding sleeve 320 rotates along the trend under the push of the elastic component.
  • the push rod 330 moves reversely and linearly under the reverse force of the sliding sleeve 320 .
  • the sliding sleeve 320 continues to rotate, and is stuck at the guide rail 340, thereby being locked and fixed. At this time, the telescopic rod stretches out of the shell.
  • the rotation limiting component 320 When the push rod 33 is pressed again, the rotation limiting component 320 continues to rotate, separates from the guide rail 340 and is unlocked. After the external force is removed, the telescopic rod moves along the direction from the second end to the first end under the action of the elastic force of the elastic member 310, and returns to the initial state, and the telescopic rod retracts to the shell.
  • the above-mentioned pressing process of the rotation limiting member is similar to the structure of pressing a ballpoint pen, and this application will not introduce it in detail here.
  • FIG. 7 shows a schematic diagram of a chip suction state of a chip suction tool according to an exemplary embodiment of the present application
  • FIG. 8 shows a schematic diagram of a chip release state of a chip suction tool according to an exemplary embodiment of the present application.
  • the elastic suction cup 240 follows the telescopic rod and protrudes out of the tapered section 110 of the casing, and closely fits the chip 400 , thereby absorbing the chip.
  • the elastic suction cup 240 follows the telescopic rod and retracts into the tapered section 110 of the casing, as shown in Figure 8, the elastic suction cup 240 is blocked by the groove 130 at the end of the casing and deformed, and the gap between the chip and the chip A gap is generated to release the chip and ensure the integrity of the chip.
  • the material of the shell and the telescopic rod can be carbon fiber, which has the characteristics of high temperature resistance, corrosion resistance, high strength, insulation, etc., and is suitable for the working environment of chip debugging.
  • the head of the chip suction tool provided by this application is provided with a suction cup.
  • a suction cup When sucking the chip, press the telescopic rod of the chip suction tool, and the suction cup head of the telescopic rod will stretch out, so that the suction cup can be closely attached to the chip to suck the chip; press the chip again to suck the chip.
  • the telescopic rod of the tool is retracted into the shell, and the sucker is blocked by the end of the shell of the chip suction tool to be deformed, and the chip is released after a gap is formed between the chip and the chip. Simple operation and good repeatability.

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  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)

Abstract

一种芯片吸取工具，包括：外壳(100)，包括沿轴线贯通的台阶状内孔；伸缩杆(200)，穿过台阶状内孔，其第一端伸出台阶状内孔的大直径端外部，其第二端伸出台阶状内孔的小直径端外部，可沿外壳(100)的轴线方向运动；弹性吸盘(240)，设置于台阶状内孔的小直径端外部，与伸缩杆(200)的第二端相连，可随伸缩杆(200)沿着外壳(100)的轴线方向运动；弹性限位装置，设置于台阶状内孔内部，环套于伸缩杆(200)外部，在伸缩杆(200)的运动过程中将其固定或释放。通过按压伸缩杆(200)，伸缩杆(200)的吸盘(240)头部向外伸，从而将吸盘(240)紧贴于芯片上从而吸取芯片；再次按压伸缩杆(200)，伸缩杆(200)向回缩，吸盘(240)被芯片吸取工具的外壳(100)端部阻挡变形后将芯片释放。

Description

芯片吸取工具 技术领域
本申请涉及射频芯片调试技术领域，具体地涉及一种芯片吸取工具。
背景技术
随着无线通信技术的发展，手机、无线局域网、蓝牙等已成为社会生活不可或缺的一部分。无线通信技术的进步离不开射频和微波技术的发展。射频技术的核心之一是射频芯片。在射频芯片的生产过程中，需要进行多种调试。
目前，射频芯片调试过程为，将晶圆切割之后，使用镊子等工具夹取芯片，并用银浆焊接至测试基板上，再通过金线连接测试芯片，通过测试输出性能来判断所选的芯片是否满足设计需求。当性能不满足要求时，需要更换不同电路结构的版本来再次测试。
射频芯片非常薄而且易碎，每次更换都需要重新夹取芯片。使用镊子等工具夹取芯片过程中，用力过大会破坏芯片的完整性和功能，对于操作人员来说难以把控力度、操作不便。
发明内容
为了解决使用镊子等工具夹具芯片的过程，操作力度难以把控、容易破坏芯片完整性等问题，本申请提供一种新的芯片吸取工具，通过按压操作可以轻松地吸取或释放芯片，从而快速地安装至测试板上并且保证芯片的安全。
本申请提供的芯片吸取工具，包括：
外壳，包括沿轴线贯通的台阶状内孔；
伸缩杆，穿过所述台阶状内孔，其第一端伸出所述台阶状内孔的大直径端外部，其第二端伸出所述台阶状内孔的小直径端外部，可沿所述 外壳的轴线方向运动；
弹性吸盘，设置于所述台阶状内孔的小直径端外部，与所述伸缩杆的第二端相连，可随所述伸缩杆沿着所述外壳的轴线方向运动；
弹性限位装置，设置所述台阶状内孔内部，环套与所述伸缩杆外部，在所述伸缩杆的运动过程中将其固定或释放。
根据本申请的一些实施例，所述吸盘的直径大于所述台阶状内孔的小直径端的直径。
根据本申请的一些实施例，所述外壳在所述台阶状内孔的小直径端外部包括一凹槽，所述凹槽的宽度小于所述弹性吸盘的直径。
根据本申请的一些实施例，所述伸缩杆包括：
第一杆部，与所述弹性吸盘相连；
第二杆部，与所述第一杆部相连，直径大于所述第一杆部的直径。
根据本申请的一些实施例，所述弹性限位装置包括：
弹性部件，环套于所述第一杆部的外部，一端与所述第一杆部和所述第二杆部的连接处相连，另一端与所述台阶状内孔的台阶面相连；
旋转限位部件，与所述第二杆部相连。
根据本申请的一些实施例，所述旋转限位部件包括：
导轨，设置于所述台阶状内孔的大直径端侧壁上；
推杆，设置于于所述台阶状内孔的大直径内，一端伸出所述台阶状内孔，可沿所述导轨直线运动；
滑套，一端与所述第二杆部相连，另一端与所述推杆配合，在所述推杆和所述弹性部件的作用下可在所述台阶状内孔中旋转和直线运动。
根据本申请的一些实施例，当所述旋转限位部件在外力作用下被按压使得所述伸缩杆沿着所述第一端向所述第二端方向运动时，所述弹性部件被压缩；当外力撤销后，在所述弹性部件的回弹力作用下，所述旋转限位部件发生转动将所述伸缩杆锁定。
根据本申请的一些实施例，当继续按压所述旋转限位部件时，所述旋转限位部件继续转动并解锁；在所述弹性部件的回弹力作用下所述伸缩杆沿着所述第二端向所述第一端的方向运动。
根据本申请的一些实施例，所述第一杆外部的所述外壳形状为圆锥形，所述第二杆外部的外壳形状为圆柱形。
根据本申请的一些实施例，所述外壳或所述伸缩杆的材料包括：碳纤维。
本申请提供的芯片吸取工具头部设置吸盘，吸取芯片时，按压芯片吸取工具的伸缩杆，伸缩杆的吸盘头部向外伸，可以将吸盘紧贴于芯片上从而吸取芯片；再次按压芯片吸取工具的伸缩杆，伸缩杆向外壳内回缩，吸盘被芯片吸取工具的外壳端部阻挡变形，与芯片之间产生缝隙后将芯片释放。操作简单、可重复性好。
本申请的附加方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本申请的实践了解到。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，还可以根据这些附图获得其他的附图，而并不超出本申请要求保护的范围。
图1示出根据本申请示例实施例的芯片吸取工具示意图；
图2示出根据本申请示例实施例的外壳示意图；
图3示出根据本申请示例实施例的伸缩杆和弹性限位装置示意图；
图4示出根据本申请示例实施例的弹性吸盘示意图；
图5示出根据本申请示例实施例的芯片吸取工具局部示意图；
图6A示出根据本申请示例实施例的旋转限位部件示意图；
图6B示出根据本申请示例实施例的滑套示意图；
图6C示出根据本申请示例实施例的推杆示意图；
图7示出根据本申请示例实施例的芯片吸取工具吸取芯片状态示意 图；
图8示出根据本申请示例实施例的芯片吸取工具释放芯片状态示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
此外，所描述的特征、结构或特性可以以任何合适的方式结合在一个或更多实施例中。在下面的描述中，提供许多具体细节从而给出对本申请的实施例的充分理解。然而，本领域技术人员将意识到，可以实践本申请的技术方案而没有特定细节中的一个或更多，或者可以采用其它的方法、组元、装置、步骤等。在其它情况下，不详细示出或描述公知方法、装置、实现或者操作以避免模糊本申请的各方面。
应理解，虽然本文中可能使用术语第一、第二等来描述各种组件，但这些组件不应受这些术语限制。这些术语乃用以区分一组件与另一组件。因此，下文论述的第一组件可称为第二组件而不偏离本申请概念的教示。如本文中所使用，术语“及/或”包括相关联的列出项目中的任一个及一或多者的所有组合。
本领域技术人员可以理解，附图只是示例实施例的示意图，可能不是按比例的。附图中的模块或流程并不一定是实施本申请所必须的，因此不能用于限制本申请的保护范围。
本发明人发现，射频芯片尺寸小、薄且易碎，目前只能通过镊子去夹取。但是人工使用镊子夹取芯片时，力量过大会造成芯片破损，力量过小可能芯片会滑落。为此，本身申请拟提供一种芯片吸取工具，可以通过吸盘快速地吸取或释放芯片。
以下将结合附图对本申请的技术方案进行详细介绍。
图1示出根据本申请示例实施例的芯片吸取工具示意图；图2示出根据本申请示例实施例的外壳示意图；图3示出根据本申请示例实施例的伸缩杆和弹性限位装置示意图；图4示出根据本申请示例实施例的弹性吸盘示意图；图5示出根据本申请示例实施例的芯片吸取工具局部示意图。
如图1至图4所示，本申请提供的芯片测试工具1000包括外壳100、伸缩杆200、弹性限位装置。外壳100为中空的壳体，内部设置沿轴线贯通的台阶状内孔。根据本申请的一些实施例，为了便于操作人员握持，外壳100可以包括锥形段110和圆形段120。台阶状内孔的大直径部分121分布在圆形段120内，台阶状内孔的小直径部分111分布在锥形段110内。
相应地，伸缩杆200的形状也为台阶状，与外壳100的台阶状内孔相配合。伸缩杆200包括第一杆部210和第二杆部220，第二杆部220与第一杆部210相连，直径大于第一杆部210的直径。伸缩杆200穿过外壳100的台阶状内孔，第二杆部220伸出台阶状内孔的大直径端121外部，第一杆部210伸出所述台阶状内孔的小直径端111外部。伸缩杆200可在外壳100内沿轴线方向运动。弹性限位装置设置于台阶状内孔内部，与伸缩杆200相连，在伸缩杆200的运动过程中将其固定或释放。
在伸缩杆200端部设置了弹性吸盘240，与第一杆部210相连，设置于外壳100锥形段110的外部，可随伸缩200杆沿着外壳100的轴线方向运动。弹性吸盘240的直径大于外壳100的台阶状内孔的小直径端111的直径。
如图2所示，外壳100在台阶状内孔的小直径端111外部包括一凹槽130。凹槽130的宽度小于所述弹性吸盘240的直径，从而在弹性吸盘240跟随伸缩杆200从台阶状内孔的小直径端111向台阶状内孔的大直径端121运动时进行阻挡从而使弹性吸盘240发生变形，最终导致芯片脱离弹性吸盘240。
如图3所示，弹性限位装置包括弹性部件310和旋转限位部件。弹性 部件310环套于第一杆部210的外部，一端与第一杆部210和第二杆部220的连接处相连，另一端与台阶状内孔的台阶面相连。弹性部件310在第一杆部210和第二杆部220的连接处与台阶状内孔的台阶面之间被压缩。根据本申请的示例实施例，弹性部件310可以是弹簧，本申请对此不作限制。
旋转限位部件包括导轨(图中未示)、滑套320和推杆330。导轨固定设置于台阶状内孔的大直径端侧壁上。推杆330设置于台阶状内孔的大直径内，一端伸出台阶状内孔，可沿导轨直线运动。滑套320一端与第二杆部220相连，另一端与推杆330配合，在推杆330和弹性部件310的作用下可在台阶状内孔中旋转和直线运动。在弹性部件310的作用下，滑套320和推杆330紧密接触。
推杆330伸出台阶状内孔的一端还可以设置按压部。推杆330装入外壳100后，按压部位于外壳100台阶状内孔的大直径端121外侧。为了便于按压操作，按压部可以是图中所述的圆盘形，也可以是其他形状，例如圆球形等，本申请对此不作限制。
图6A示出根据本申请示例实施例的旋转限位部件示意图；图6B示出根据本申请示例实施例的滑套示意图；图6C示出根据本申请示例实施例的推杆示意图。
如图6A、6B、6C所示，旋转限位部件的导轨340固定设置于台阶状内孔的大直径端侧壁上(即圆形段120内)。推杆330一端伸出台阶状内孔，可沿导轨340直线运动。滑套320的一端在弹性部件的弹性力作用下与第二杆部220紧密接触，另一端与推杆330配合，在推杆330和弹性部件的作用下可在台阶状内孔中旋转和直线运动。
初始状态下，弹性部件处于收缩状态，当按压推杆330的端部时，推杆330推动滑套320沿着第一端(即外壳100台阶状内孔的大直径端121)向第二端(即外壳100台阶状内孔的小直径端111)的方向运动到导轨340底部尖端位置(临界点)。当外力撤销后，在弹性部件的推动下，滑套320顺势转动。推杆330在滑套320的反向作用力下反向直线运动。推杆330通过临界点后滑套320继续转动，被卡在导轨340处，从而锁紧固定。此 时伸缩杆伸出外壳。
当再次按压推杆33，旋转限位部件320继续转动，与导轨340分离并解锁。外力撤销后，在弹性部件310的弹性力作用下伸缩杆沿着第二端向第一端的方向运动，回到初始状态，伸缩杆缩回外壳。旋转限位部件的上述按压过程与按压圆珠笔的结构类似，本申请在此不作详细介绍。
图7示出根据本申请示例实施例的芯片吸取工具吸取芯片状态示意图；图8示出根据本申请示例实施例的芯片吸取工具释放芯片状态示意图。
如图7所示，当需要吸取芯片时，通过按压伸缩杆，弹性吸盘240跟随伸缩杆伸出外壳的锥形段110，与芯片400紧密贴合，从而将芯片吸附。当再次按压伸缩杆，弹性吸盘240跟随伸缩杆向外壳的锥形段110内回缩时，如图8所示，弹性吸盘240被外壳端部的凹槽130阻挡而发生变形，与芯片之间产生间隙，从而将芯片释放，保证了芯片的完整。
根据本申请的一些实施例，外壳、伸缩杆的材料可以是碳纤维，具有耐高温、耐腐蚀、强度高、绝缘等特点，适用于芯片调试的工作环境。
本申请提供的芯片吸取工具头部设置吸盘，吸取芯片时，按压芯片吸取工具的伸缩杆，伸缩杆的吸盘头部向外伸，可以将吸盘紧贴于芯片上从而吸取芯片；再次按压芯片吸取工具的伸缩杆，伸缩杆向外壳内回缩，吸盘被芯片吸取工具的外壳端部阻挡变形，与芯片之间产生缝隙后将芯片释放。操作简单、可重复性好。
以上对本申请实施例进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明仅用于帮助理解本申请的方法及其核心思想。同时，本领域技术人员依据本申请的思想，基于本申请的具体实施方式及应用范围上做出的改变或变形之处，都属于本申请保护的范围。综上所述，本说明书内容不应理解为对本申请的限制。

Claims (9)

  1. 一种芯片吸取工具，其特征在于，包括：
    外壳，包括沿轴线贯通的台阶状内孔；
    伸缩杆，穿过所述台阶状内孔，其第一端伸出所述台阶状内孔的大直径端外部，其第二端伸出所述台阶状内孔的小直径端外部，可沿所述外壳的轴线方向运动；
    弹性吸盘，设置于所述台阶状内孔的小直径端外部，与所述伸缩杆的第二端相连，可随所述伸缩杆沿着所述外壳的轴线方向运动；
    弹性限位装置，设置于所述台阶状内孔内部，环套于所述伸缩杆外部，第一次按压所述伸缩杆并撤销外力后，在所述伸缩杆的运动过程中将其锁紧固定；第二次按压所述伸缩杆并撤销外力后，在所述伸缩杆的运动过程中将其释放；
    所述外壳在所述台阶状内孔的小直径端外部包括一凹槽，所述凹槽的宽度小于所述弹性吸盘的直径，所述凹槽在所述弹性吸盘运动时进行阻挡使所述弹性吸盘发生变形，从而导致所述芯片脱离所述弹性吸盘。
  2. 根据权利要求1所述的芯片吸取工具，其特征在于，所述弹性吸盘的直径大于所述台阶状内孔的小直径端的直径。
  3. 根据权利要求1所述的芯片吸取工具，其特征在于，所述伸缩杆包括：
    第一杆部，与所述弹性吸盘相连；
    第二杆部，与所述第一杆部相连，直径大于所述第一杆部的直径。
  4. 根据权利要求3所述的芯片吸取工具，其特征在于，所述弹性限位装置包括：
    弹性部件，环套于所述第一杆部的外部，一端与所述第一杆部和所述第二杆部的连接处相连，另一端与所述台阶状内孔的台阶面相连；
    旋转限位部件，与所述第二杆部相连。
  5. 根据权利要求4所述的芯片吸取工具，其特征在于，所述旋转限位部件包括：
    导轨，设置于所述台阶状内孔的大直径端侧壁上；
    推杆，设置于所述台阶状内孔的大直径内，一端伸出所述台阶状内孔，可沿所述导轨直线运动；
    滑套，一端与所述第二杆部相连，另一端与所述推杆配合，在所述推杆和所述弹性部件的作用下可在所述台阶状内孔中旋转和直线运动。
  6. 根据权利要求4所述的芯片吸取工具，其特征在于，当所述旋转限位部件在外力作用下被按压使得所述伸缩杆沿着所述第一端向所述第二端方向运动时，所述弹性部件被压缩；
    当外力撤销后，在所述弹性部件的回弹力作用下，所述旋转限位部件发生转动将所述伸缩杆锁定。
  7. 根据权利要求6所述的芯片吸取工具，其特征在于，当继续按压所述旋转限位部件时，所述旋转限位部件继续转动并解锁；
    在所述弹性部件的回弹力作用下所述伸缩杆沿着所述第二端向所述第一端的方向运动。
  8. 根据权利要求3所述的芯片吸取工具，其特征在于，所述第一杆外部的所述外壳形状为圆锥形，所述第二杆外部的外壳形状为圆柱形。
  9. 根据权利要求1所述的芯片吸取工具，其特征在于，所述外壳或所述伸缩杆的材料包括：碳纤维。
PCT/CN2022/099461 2021-08-18 2022-06-17 芯片吸取工具 Ceased WO2023020102A1 (zh)

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