CN209946313U

CN209946313U - Test fixture

Info

Publication number: CN209946313U
Application number: CN201920356635.3U
Authority: CN
Inventors: 卿琼
Original assignee: Dongguan Gun Hitoshi Electronic Technology Co Ltd
Current assignee: Dongguan Gun Hitoshi Electronic Technology Co Ltd
Priority date: 2019-03-20
Filing date: 2019-03-20
Publication date: 2020-01-14
Anticipated expiration: 2029-03-20

Abstract

The utility model provides a test fixture, including test seat body and lid, be provided with the mounting groove on the test seat body, be provided with kernel module and dress needle rack in the mounting groove, the upper portion of kernel module still is provided with spacing frame, be provided with the slot screens on the spacing frame, the slot screens with the corresponding setting of kernel module, spacing frame with the test seat body can be dismantled and be connected, the week side of kernel module, be located be provided with a plurality of locating convex blocks on the test seat body, be provided with a plurality of locating grooves with locating convex block matched with on the spacing frame; the test fixture is high in test efficiency and strong in universality.

Description

Test fixture

Technical Field

The utility model relates to a chip testing arrangement field especially relates to a test fixture.

Background

Chip, English is Chip; the Chipset is a Chipset. Generally refers to the carrier of the integrated circuit and the result of the integrated circuit after design, manufacture, packaging and testing, and is usually a separate entity that can be used immediately. Integrated circuits are now increasingly being used in many areas such as computers, communications, industrial control and consumer electronics. The manufacturing industry of integrated circuits has become the same basic industry as steel. After the wafer is subjected to complex processes such as exposure, etching, ion implantation, deposition, growth and the like, and a chip is formed and packaged, various very strict tests such as an electrical parameter test and a functional test on an Automatic Test Equipment (ATE) are required, and the wafer cannot be delivered to a customer until the wafer is qualified. The existing chip test fixture can only be used for testing one chip, and because the types of the chips are more, a plurality of test fixtures are needed, so that the design cost of the test fixtures is high, and the test fixtures are easy to be confused in use.

Disclosure of Invention

In view of this, the utility model aims at providing a high, the strong test fixture of commonality of efficiency of software testing.

In order to solve the technical problem, the technical scheme of the utility model is that:

the utility model provides a test fixture, includes test seat body and lid, be provided with the mounting groove on the test seat body, be provided with kernel module and dress needle rack in the mounting groove, the upper portion of kernel module still is provided with spacing frame, be provided with the slot screens on the spacing frame, the slot screens with the kernel module corresponds the setting, spacing frame with the connection can be dismantled to the test seat body.

Preferably, the periphery of the core module is located a plurality of positioning lugs are arranged on the test seat body, and a plurality of positioning grooves matched with the positioning lugs are arranged on the limiting frame.

Preferably, the positioning lug is a magnetic block with magnetic attraction performance, and the limiting frame is a metal frame capable of being attracted by magnetic force; or,

the locating convex block is a metal convex block which can be adsorbed by magnetic force, and the peripheral side of the locating groove is provided with a material with magnetic attraction performance on the limiting frame.

Preferably, the cover body is hinged to one side of the test seat body, a buckle is arranged on the other side of the cover body, and a clamping block corresponding to the clamping block is arranged on the test seat body.

Preferably, a pressing block corresponding to the core module is fixed on the cover body.

Preferably, the needle installing rack surrounds the periphery side of the core module, the needle installing rack is provided with a plurality of needles, the heads and the tails of the needle installing racks are in mutual contact, and the needle installing rack is detachably connected with the core module.

Preferably, a plurality of clamping blocks are arranged on the side surface of the core module, clamping grooves corresponding to the clamping blocks are arranged on the needle mounting rack, and the core module and the needle mounting rack are fixedly connected through the clamping grooves and the clamping blocks in a clamping manner.

Preferably, the inner core module comprises a plurality of metal elastic sheets, the needle mounting rack comprises a plurality of vertically arranged metal elastic sheets, and the metal elastic sheets are detachably connected to the needle mounting rack.

Compared with the prior art, the utility model has the advantages that: due to the arrangement of the limiting frame, the limiting frame is provided with the slot clamp position, so that the chip is conveniently prevented, and the testing efficiency is improved; because spacing frame and test seat body can be dismantled and be connected, can change different spacing frames according to the chip, make this test fixture's commonality stronger.

Drawings

FIG. 1 is a view of the overall structure of a test fixture according to a preferred embodiment of the present invention;

FIG. 2 is a view of the preferred embodiment of the present invention showing the combination of the core module and the needle rack;

FIG. 3 is an overall block diagram of the kernel module according to the preferred embodiment of the present invention;

fig. 4 is an overall structure diagram of the needle mounting rack and the metal dome according to the preferred embodiment of the present invention.

Detailed Description

The following detailed description will be made with reference to fig. 1 to 4 to make the technical solution of the present invention easier to understand and master.

In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In addition, in the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a pin fixing manner, or a pin shaft connecting manner, which is commonly used in the prior art, and therefore, detailed description thereof is omitted in this embodiment.

Referring to fig. 1-4, an embodiment of the present invention provides a test fixture, which includes a test socket body 1 and a cover body 2, wherein a mounting groove 13 is provided on the test socket body 1, and a core module 11 and a needle mounting rack 12 are provided in the mounting groove 13. When testing the chip, the chip is placed on the upper part of the core module 11, and then the cover body 2 is covered, so that the chip can be tested. The upper portion of kernel module 11 still is provided with spacing frame 3, be provided with slot screens 32 on the spacing frame 3, slot screens 32 with kernel module 11 corresponds the setting, slot screens 32 cooperatees with the size of chip, and during the test chip, it is more convenient to place the chip. Spacing frame 3 with test seat body 1 can dismantle the connection, can change different spacing frames 3 according to the chip, makes this test fixture can adapt to multiple different chips, and the commonality is stronger.

Referring to fig. 1, in a preferred embodiment, a plurality of positioning protrusions 14 are disposed on the test socket body 1 on the peripheral side of the core module 11, and a plurality of positioning grooves 31 matched with the positioning protrusions 14 are disposed on the position limiting frame 3. Further, the positioning protrusions 14 and the positioning grooves 31 are all provided with four ones, and are respectively located at four corners of the test socket body 1 and the limiting frame 3. The positioning bump 14 is clamped in the positioning groove 31 to fix the limiting frame 3, and the replacement of the limiting frame 3 is only required to take down the limiting frame 3 and mount a new limiting frame 3, which is more convenient. Different limiting frames 3 can be replaced according to different chips, so that the test fixture is higher in universality.

In a preferred embodiment, the positioning protruding block 14 is a magnetic block with magnetic attraction performance, the limiting frame 3 is a metal frame capable of being attracted by magnetic force, and the magnetic force of the positioning protruding block 14 can attract and fix the limiting frame 3, so that the connection between the limiting frame 3 and the test socket body 1 is more stable. In another preferred embodiment, the positioning protrusion 14 is a metal protrusion that can be attracted by magnetic force, a material with magnetic attraction performance is disposed on the limiting frame 3 and on the periphery of the positioning groove 31, the magnetic attraction material on the limiting frame 3 can attract and fix the positioning module, and the connection between the limiting frame 3 and the test socket body 1 can be more stable.

In a preferred embodiment, the cover 2 is hinged to one side of the test socket body 1, so as to facilitate the cover 2 to be closed and opened. The other side of the cover body 2 is provided with a buckle 22, and the test socket body 1 is provided with a fixture block 10 corresponding to the buckle, so that the cover body 2 and the test socket body 1 can be conveniently fixed.

Referring to fig. 2 and 3, in a preferred embodiment, a pressing block 21 corresponding to the core module 11 is fixed on the cover 2, and when the cover 2 is covered, the pressing block can press the chip on the core module 11, so that the chip is in closer contact with the core module 11.

Referring to fig. 3-4, in a preferred embodiment, the needle mounting rack 12 is wound around the periphery of the core module 11, and the metal spring sheet 121 fixed to the needle mounting rack 12 is wound around the periphery of the core module 11. The needle installing racks 12 are in mutual contact end to end, and the needle installing racks 12 are detachably connected with the kernel module 11. The side surface of the core module 11 is provided with a plurality of clamping blocks 111, the needle mounting rack 12 is provided with clamping grooves 122 corresponding to the clamping blocks 111, and the core module 11 and the needle mounting rack 12 are fixedly connected through the clamping grooves 122 and the clamping blocks 111.

Referring to fig. 2 and 4, in a preferred embodiment, the needle mounting rack 12 includes a plurality of vertically arranged metal elastic pieces 121. The metal elastic sheet 121 is detachably connected to the needle mounting rack 12, the metal elastic sheet 121 is arranged in an arc shape, the metal elastic sheet 121 is fixedly clamped on the needle mounting rack 12, furthermore, a plurality of strip-shaped clamping grooves matched with the metal elastic sheet 121 are formed in the needle mounting rack 12, and the metal elastic sheet 121 is clamped in the strip-shaped clamping grooves. The metal elastic sheet 121 is detachably connected to the needle mounting rack 12, and any metal elastic sheet 121 can be replaced at will. If one metal elastic sheet 121 is damaged, the damaged metal elastic sheet 121 is convenient to replace, the maintenance is convenient, the metal elastic sheet does not need to return to a manufacturer for maintenance, and the time and the cost are saved.

In a preferred embodiment, the needle mounting rack 12, the core module 11 and the metal elastic sheet 121 are all produced by using a mold, so that the precision is high, the efficiency is high, and the cost is low. More convenient dismantlement, maintenance, it is very convenient to use.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. The utility model provides a test fixture, includes test seat body and lid, be provided with the mounting groove on the test seat body, be provided with kernel module and dress needle rack in the mounting groove, its characterized in that, the upper portion of kernel module still is provided with spacing frame, be provided with the slot screens on the spacing frame, the slot screens with the kernel module corresponds the setting, spacing frame with the connection can be dismantled to the test seat body.

2. The test fixture of claim 1, wherein: the side of the inner core module is located a plurality of positioning lugs are arranged on the test seat body, and a plurality of positioning grooves matched with the positioning lugs are arranged on the limiting frame.

3. The test fixture of claim 2, wherein: the positioning lug is a magnetic block with magnetic attraction performance, and the limiting frame is a metal frame which can be attracted by magnetic force; or,

4. The test fixture of claim 1, wherein: the cover body is hinged to one side of the test seat body, a buckle is arranged on the other side of the cover body, and a clamping block corresponding to the clamping block is arranged on the test seat body.

5. The test fixture of claim 1, wherein: and a pressing block corresponding to the kernel module is fixed on the cover body.

6. The test fixture of claim 1, wherein: dress needle rack encircles the week side of kernel module, dress needle rack is provided with a plurality ofly, a plurality of dress needle racks contact each other between the head and the tail, dress needle rack with the kernel module can be dismantled and be connected.

7. The test fixture of claim 1, wherein: the side of the core module is provided with a plurality of clamping blocks, the needle mounting rack is provided with clamping grooves corresponding to the clamping blocks, and the core module and the needle mounting rack are fixedly connected through the clamping grooves and the clamping blocks in a clamping mode.

8. The test fixture of claim 1, wherein: the inner core module comprises a plurality of metal elastic sheets, the pin mounting rack comprises a plurality of vertically arranged metal elastic sheets, and the metal elastic sheets are detachably connected to the pin mounting rack.