Split type adjustable HAST test fixture

Abstract

The utility model discloses a split type adjustable HAST test fixture, and belongs to the technical field of HAST test. Comprising a lower-layer jig testing base and an upper-layer sample mounting part, the upper-layer sample mounting part and the lower-layer jig test base are arranged in a sliding manner; the lower jig test base comprises a jig frame, and a jig support frame is fixedly connected below the jig frame; a metal testing unit is arranged in the jig frame; the upper-layer sample mounting part comprises an upper-layer frame, and movable push switch conduction devices which are used in pairs are arranged in the upper-layer frame in a sliding manner; the movable push switch conduction device comprises a metal lower pressing head and a metal telescopic rod which are communicated with each other; a test bonding pad is arranged in the upper-layer frame, and a test sample is arranged on the test bonding pad; the metal lower pressing head presses the test bonding pad, and the metal telescopic rod extends downwards to be conducted with the metal test unit. The problems that an existing HAST test box is narrow in space and large in operation difficulty, and the number of samples capable of being tested by an HAST jig is limited can be solved.

Description

Technical Field

[0001] The utility model provides a split-type adjustable HAST test fixture, belonging to the technical field of HAST testing. Background Art

[0002] COF flexible packaging substrate (also known as chip-on-film) plays a key role in carrying driver chips, electrical conduction, and insulation support in display modules. It is widely used in large-size smart TVs, full-screen mobile phones, flexible OLED display terminals, etc. As the complexity of electronic appliances continues to increase, the use environment of electronic products is becoming increasingly stringent, and the device density is increasing. The reliability of COF flexible packaging substrates has also become an important quality indicator for product assessment and testing.

[0003] The HAST test is a commonly used reliability test method in the integrated circuit industry. It simulates the harsh conditions that the samples may face in actual applications by placing the samples in a high temperature and high humidity environment to evaluate the stability and reliability of the samples. The existing HAST test chambers on the market are small in space and difficult to operate. At the same time, the number of samples that can be tested by the HAST fixture is limited. If multiple tests are performed, it will be time-consuming and inefficient. Therefore, it is urgent to invent a test fixture that reduces the difficulty of the operation and greatly improves the efficiency of the operation. Utility Model Content

[0004] The utility model provides a split-type adjustable HAST test fixture, which adopts a split design and is easy to adjust. It can test multiple samples at the same time, improves the test efficiency, and solves the problems of small space, difficult operation and limited number of testable samples in the existing HAST test box.

[0005] In order to solve the above problems, the utility model proposes a technical solution: a split adjustable HAST test fixture, comprising a lower fixture test base and an upper sample mounting portion; the upper sample mounting portion is slidably arranged with the lower fixture test base; the lower fixture test base comprises a fixture frame, and a fixture support frame is fixedly connected to the lower portion of the fixture frame; a metal test unit is arranged in the fixture frame; the upper sample mounting portion comprises an upper frame, and a movable push switch conduction device used in pairs is slidably arranged in the upper frame; the movable push switch conduction device comprises a metal down-pressing head and a metal telescopic rod connected to each other; a test pad is arranged in the upper frame, and a test sample is arranged on the test pad; the metal down-pressing head presses the test pad, and the metal telescopic rod extends downward to conduct with the metal test unit.

[0006] As an improvement, the metal testing unit includes a metal sheet and a metal conductive socket, which is connected under the metal sheet; the metal telescopic rod is conductive with the metal sheet of the metal testing unit, and the metal conductive socket is connected to the test box through an external lead.

[0007] As an improvement, a sliding track is provided in the upper frame, and the movable push switch conduction device is slidably arranged relative to the sliding track; a fastening device is provided on the movable push switch conduction device, and the fastening device fixedly connects the movable push switch conduction device to the upper frame.

[0008] As an improvement, interactive guide rails are provided on both sides of the upper sample mounting portion, and insert-type sliding guide rails are provided on both sides of the lower fixture test base; the interactive guide rails are slidably matched with the insert-type sliding guide rails.

[0009] As an improvement, the interactive guide rail is connected with the plug-in sliding guide rail and then locked and fixed by a track lock.

[0010] As an improvement, the fixture frame is made of corrosion-resistant material.

[0011] Beneficial effects of the utility model:

[0012] This application includes an upper sample mounting part and a lower fixture test base that can be relatively slidably separated, and a movable push switch conduction device is provided; the split design greatly reduces the difficulty of connecting samples and improves work efficiency, and the movable push switch conduction device can easily complete the sample clamping, and the adjustable track is suitable for various types of samples, achieving cost reduction and efficiency improvement. At the same time, the space of the HAST test box can be fully utilized to greatly increase the number of test samples. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a side view of a split adjustable HAST test fixture of the utility model.

[0014] Figure 2 The utility model is a top view of a lower fixture test base of a split adjustable HAST test fixture.

[0015] Figure 3 It is a side view of a metal testing unit of a split adjustable HAST testing fixture of the utility model.

[0016] Figure 4 The utility model is a top view of the upper sample mounting portion of a split adjustable HAST test fixture.

[0017] Figure 5The utility model is a schematic diagram of a movable push switch conduction device of a split adjustable HAST test fixture.

[0018] Figure 6 It is a schematic diagram of the pressed state of a movable push switch conducting device of a split-type adjustable HAST test fixture of the utility model.

[0019] Figure 7 The utility model is a schematic diagram of the cooperation and connection between the plug-in sliding guide rail and the interactive guide rail of a split adjustable HAST test fixture.

[0020] 1. Fixture support frame; 2. External lead wire; 3. Metal conduction socket; 4. Metal sheet; 5. Fixture frame; 6. Track lock; 7. Plug-in sliding guide rail; 8. Interactive guide rail; 9. Metal down-pressure head; 10. Fastening device; 11. Sliding track; 12. Metal telescopic rod; 13. Upper frame; 14. Test sample; 15. Test pad. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings.

[0022] according to Figure 1-7 As shown: the utility model provides a split adjustable HAST test fixture: comprising a lower fixture test base and an upper sample mounting portion; the upper sample mounting portion is slidably arranged with the lower fixture test base; the lower fixture test base comprises a fixture frame 5, and a fixture support frame 1 is fixedly connected to the lower portion of the fixture frame 5; a metal test unit is arranged in the fixture frame 5; the upper sample mounting portion comprises an upper frame 13, and a movable push switch conduction device used in pairs is slidably arranged in the upper frame 13; the movable push switch conduction device comprises a metal pressing head 9 and a metal telescopic rod 12 which are connected to each other; a test pad 15 is arranged in the upper frame 13, and a test sample 14 is arranged on the test pad 15; the metal pressing head 9 presses the test pad 15, and the metal telescopic rod 12 extends downward to conduct with the metal test unit. The metal test unit includes a metal sheet 4 and a metal conductive socket 3, which is connected to the bottom of the metal sheet 4; the metal telescopic rod 12 is conductive with the metal sheet 4 of the metal test unit, and the metal conductive socket 3 is connected to the test box through an external lead 2.

[0023] The split design is easy to adjust and can test multiple samples at the same time, which improves the test efficiency and solves the problems of small space, difficult operation and limited number of test samples in the existing HAST test chamber.

[0024] A sliding track 11 is provided in the upper frame 13, and the movable push switch conduction device is slidably arranged relative to the sliding track 11; a fastening device 10 is provided on the movable push switch conduction device, and the fastening device 10 fixes the movable push switch conduction device to the upper frame 13. The fastening device 10 is provided to facilitate the fixation of the movable push switch conduction device after it is moved.

[0025] Interactive rails 8 are provided on both sides of the upper sample mounting portion, and plug-in sliding rails 7 are provided on both sides of the lower fixture test base; the interactive rails 8 and the plug-in sliding rails 7 are provided in a sliding manner. After the interactive rails 8 and the plug-in sliding rails 7 are connected in a coordinated manner, they are locked and fixed by the track lock 6. The provision of the sliding connection rails facilitates the installation of the upper sample mounting portion and the lower fixture test base, and the provision of the track lock 6 facilitates the fixation of the two after the connection.

[0026] The fixture frame 5 is made of corrosion-resistant material, which can improve the corrosion resistance of the entire test fixture.

[0027] Principle of the utility model

[0028] When in use, place the lower fixture test base in the test box, connect the metal conductive socket 3 through the external lead 2, so that the positive and negative poles are conductive with the test box; through the interactive guide rail 8 and the plug-in sliding guide rail 7, push the upper sample mounting part to the top of the lower fixture test base, and use the track lock 6 to lock and fix it.

[0029] According to the number of test samples 14, the number of movable push switch conduction devices is selected, and the position of the movable push switch conduction device on the sliding track 11 is adjusted according to the size of the test sample 14, and fixed by the fastening device 10. The test pad 15 of the sample is placed under the metal pressing head 9, and the switch is pressed. The metal pressing head 9 presses the test pad 15, and at the same time, the metal telescopic rod 12 at the other end of the movable push switch conduction device extends downward and conducts with the metal sheet 4 of the metal test unit below to form a path; the entire test fixture forms a complete circuit, and can be operated after the external test conditions are applied.

[0030] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A split adjustable HAST test fixture, comprising a lower fixture test base and an upper sample mounting portion; characterized in that: The upper sample mounting portion is slidably arranged with the lower jig test base; the lower jig test base comprises a jig frame (5), and a jig support frame (1) is fixedly connected below the jig frame (5); a metal test unit is arranged in the jig frame (5); the upper sample mounting portion comprises an upper frame (13), and a movable push switch conduction device used in pairs is slidably arranged in the upper frame (13); the movable push switch conduction device comprises a metal pressing head (9) and a metal telescopic rod (12) which are connected to each other; a test pad (15) is arranged in the upper frame (13), and a test sample (14) is arranged on the test pad (15); the metal pressing head (9) presses the test pad (15), and the metal telescopic rod (12) extends downward to conduct with the metal test unit.

2. A split adjustable HAST test fixture according to claim 1, characterized in that: The metal testing unit comprises a metal sheet (4) and a metal conductive socket (3), wherein the metal conductive socket (3) is connected below the metal sheet (4); the metal telescopic rod (12) is conductively connected to the metal sheet (4) of the metal testing unit, and the metal conductive socket (3) is connected to a test box via an external lead wire (2).

3. A split adjustable HAST test fixture according to claim 1, characterized in that: A sliding track (11) is provided in the upper frame (13), and the movable push switch conduction device is slidably arranged relative to the sliding track (11); a fastening device (10) is provided on the movable push switch conduction device, and the fastening device (10) fixedly connects the movable push switch conduction device and the upper frame (13).

4. A split adjustable HAST test fixture according to claim 1, characterized in that: Interactive guide rails (8) are arranged on both sides of the upper sample mounting portion, and inserted sliding guide rails (7) are arranged on both sides of the lower fixture test base; the interactive guide rails (8) and the inserted sliding guide rails (7) are arranged to slide in cooperation with each other.

5. A split adjustable HAST test fixture according to claim 4, characterized in that: After the interactive guide rail (8) is matched and connected with the insertable sliding guide rail (7), it is locked and fixed by a track lock (6).

6. The split adjustable HAST test fixture according to claim 1, characterized in that: The jig frame (5) is made of corrosion-resistant material.

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