Bar strip test fixture suitable for wafer
By clamping the wafer Bar with Teflon blocks and driving structures, the chip damage caused by metal blocks is solved, and damage-free fixation and high-precision production are achieved.
Patent Information
- Application Number
- CN202421786050.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-25
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-07-25
AI Technical Summary
Existing test fixtures are prone to chip damage when using metal blocks to fix wafer bars.
Teflon blocks are used instead of metal blocks, and the driving structure is designed to make the Teflon blocks slide and clamp them. The Teflon blocks are used to push the Teflon blocks to clamp the chip BAR strips, and the suction holes are combined to ensure that the fixation is not damaged.
It effectively avoids damage to the chip bar during the fixing process, and improves production accuracy and equipment stability.
Smart Images
Figure CN223259758U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of optical chip manufacturing, in particular to a fixture suitable for wafer bar testing. Background Art
[0002] The front and rear ends of the existing test fixture for fixing the chip Bar are metal blocks. The hardness of the metal is higher than that of the chip Bar, which can easily cause damage to the chip Bar during fixing. Utility Model Content
[0003] In order to solve the above problems, the present technical solution provides a fixture suitable for wafer bar testing.
[0004] To achieve the above purpose, the technical solution is as follows:
[0005] A fixture suitable for wafer bar testing includes a fixture body, an upper end surface of which is provided with an area for accommodating chip BAR strips, and Teflon blocks for fixing chip BAR strips are provided on both sides of the area.
[0006] In some embodiments, the Teflon block on one side of the region is fixed on the fixture body, and the Teflon block on the other side can slide on the fixture body to clamp the chip BAR strip.
[0007] In some embodiments, the clamp body is provided with a driving member for pushing the Teflon block to slide.
[0008] In some embodiments, the driving member is a screw threadedly connected to the clamp body.
[0009] In some embodiments, a pushing portion is provided between the driving member and the Teflon block, and a side surface of the pushing portion is designed to be inclined.
[0010] In some embodiments, suction holes for sucking the chip BAR strip are provided in the region.
[0011] The beneficial effects of this application are:
[0012] The present application adopts Teflon blocks to replace metal blocks, which are less hard than the chip BAR strips and will not damage the chip BAR strips during fixation. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments.
[0014] Figure 1 It is a structural schematic diagram of an embodiment of the present utility model. DETAILED DESCRIPTION
[0015] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0016] Please refer to Figure 1 As shown, a fixture suitable for wafer Bar strip testing includes a fixture body, an upper end surface of the fixture body is provided with an area for accommodating chip BAR strips, and Teflon blocks 1 for fixing chip BAR strips are provided on both sides of the area.
[0017] The present application adopts Teflon blocks to replace metal blocks, which are less hard than the chip BAR strips and will not damage the chip BAR strips during fixation.
[0018] In the prior art, metal blocks are used to clamp and fix the chip BAR strips, so it is impossible to design a driving structure to allow the metal blocks to approach the BAR strips, otherwise damage will be more likely to occur. However, this application uses Teflon blocks, so a driving structure can be designed. Specifically, the Teflon block 1 on one side of the area is fixed on the fixture body, and the Teflon block 1 on the other side can slide on the fixture body to clamp the chip BAR strips.
[0019] In this embodiment, the clamp body is provided with a driving member 2 for pushing the Teflon block 1 to slide. The driving member can be moved horizontally to push the Teflon block close to the BAR strip for clamping and fixing without damaging the BAR strip.
[0020] In this embodiment, the driving member 2 is a screw threadedly connected to the clamp body, so that the head of the screw can push the Teflon block by rotating the screw.
[0021] In this embodiment, a pushing portion 3 is provided between the driving member 2 and the Teflon block 1. The side surface of the pushing portion 3 is designed to be inclined so that the pushing portion is in the shape of a shovel and has a larger area of contact with the Teflon block, so that the Teflon block can be pushed more stably, ensuring that the Teflon block can completely clamp the BAR strip horizontally to prevent affecting the production accuracy.
[0022] In this embodiment, the region is provided with suction holes 4 for sucking the chip BAR strip tightly, so that the lower end surface of the BAR strip can always fit with the end surface of the region.
[0023] The above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application. Other embodiments whose principles and basic structures are the same or similar to those of the present application are within the scope of protection of the present application.
Claims
1. A fixture suitable for wafer bar testing, characterized in that: The clamp body comprises a clamp body, wherein the upper end surface of the clamp body is provided with an area for accommodating the chip BAR strip, and Teflon blocks (1) for fixing the chip BAR strip are provided on both sides of the area; The Teflon block (1) located on one side of the area is fixed on the clamp body, and the Teflon block (1) on the other side can slide on the clamp body to clamp the chip BAR strip; The clamp body is provided with a driving member (2) for pushing the Teflon block (1) to slide; Suction holes (4) for sucking the chip BAR strip are provided in the area.
2. The wafer bar test fixture according to claim 1, characterized in that: The driving member (2) is a screw threadedly connected to the clamp body.
3. The wafer bar test fixture according to claim 2, characterized in that: A pushing portion (3) is provided between the driving member (2) and the Teflon block (1), and the side surface of the pushing portion (3) is designed to be an inclined surface.