CN218808970U

CN218808970U - Novel suction nozzle for Hall SOT packaging test

Info

Publication number: CN218808970U
Application number: CN202222769774.3U
Authority: CN
Inventors: 叶锦祥; 刘文雄; 李飞
Original assignee: Hefei Jiuchang Semiconductor Co ltd
Current assignee: Hefei Jiuchang Semiconductor Co ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-04-07
Anticipated expiration: 2032-10-20

Abstract

The utility model discloses a novel hall SOT suction nozzle for encapsulation test, including the suction nozzle, the suction nozzle below is equipped with the component, the suction nozzle lower extreme seted up with component assorted spacing groove, link up the vertical induction port of having seted up of suction nozzle roof on the spacing inslot roof, the component both sides are equipped with the pin of flat foot encapsulation, the spacing groove both sides are equipped with the stopper, the stopper lower extreme is laminated mutually with the pin upper end, the suction nozzle is made by insulating ceramic, the cross sectional shape of induction port be with component up end assorted ellipse bar, the vertical fixedly connected with installation handle in suction nozzle upper end. The utility model relates to a rationally, novel structure, the effectual flat foot of SOT encapsulation of having solved detects the warping problem that the stitch makes progress, provides technical basis for hall SOT flat foot packaging element's full the examining, the improvement of very big degree the outgoing of SOT flat foot packaging element to greatly reduced the RDSON error in the test, improved detection quality.

Description

Novel suction nozzle for Hall SOT packaging test

Technical Field

The utility model relates to an encapsulation check out test set technical field especially relates to a novel suction nozzle is used in hall SOT encapsulation test.

Background

An SOT package, i.e., a Small Outline Transistor, is a surface mount package form, and in order to ensure the quality of an element and a product, the element needs to be detected after the package or before the chip is mounted, and there are two types of general inspection and sampling inspection.

When the SOT flat pin package is detected, a suction nozzle is needed to adsorb the element, and a test thimble is used to upwards support the pin of the element to detect the electrical property of the element.

The conventional SOT flat pin adopts a Pogpin mode during electrical performance detection, a product pin is open during testing, two kinds of abnormity can be generated when an ejector pin in a test seat generates an upward force, and 1, the pin is warped upwards and deformed, so that an element cannot be continuously used; 2. RDSON error is large in the test; therefore, the elements packaged by the SOT flat pins cannot be inspected completely, and the quality stability of subsequent products cannot be ensured.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that the prior art causes upward warping deformation of the pins, so that the elements cannot be used continuously; the RDSON error in the test is large; therefore, the SOT flat pin packaged element cannot be detected completely, and further the quality stability of subsequent products cannot be guaranteed, and the novel suction nozzle for the Hall SOT packaging test is provided.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a novel hall SOT suction nozzle for packaging test, includes the suction nozzle, the suction nozzle below is equipped with the component, the suction nozzle lower extreme seted up with component assorted spacing groove, link up the suction nozzle roof on the spacing inslot roof and vertically seted up the induction port.

The two sides of the element are provided with pins packaged by flat pins, the two sides of the limiting groove are provided with limiting blocks, and the lower ends of the limiting blocks are attached to the upper ends of the pins.

Preferably, the suction nozzle is made of insulating ceramic.

Preferably, the cross section of the air suction port is in an ellipse strip shape matched with the upper end face of the element.

Preferably, the upper end of the suction nozzle is vertically and fixedly connected with a mounting handle, and a suction hole communicated with the suction port is vertically formed in the mounting handle.

More preferably, a limit groove is vertically formed in the side wall of the mounting handle.

Compared with the prior art, the beneficial effects of the utility model are that:

1. in the utility model, the element is positioned through the limiting groove and is adsorbed by matching with the air suction port, thereby ensuring the accurate positioning of the element and the accuracy of the element packaging test;

2. in the utility model, the pin is supported by the limiting block during the detection of the pin, so that the upward buckling deformation of the pin caused by the upward jacking of the pin by the test probe is avoided, and the quality of the element after the detection of the SOT flat pin packaging element is ensured;

3. the utility model discloses in, make the suction nozzle of making through insulating ceramic, guarantee the insulating state of SOT component, reduce RDSON error in the test, improve the reliability of test result.

4. The utility model discloses in, fix a position the position and the angle of installation handle through the constant head tank, can effectually carry out the accurate positioning to the position and the angle of spacing groove, guarantee the installation effect of suction nozzle.

The utility model relates to a rationally, novel structure, the effectual flat foot of SOT encapsulation of having solved examines time measuring stitch warping problem that makes progress, for the full examination of the flat foot of Hall SOT encapsulated component provides technical basis, the improvement of very big degree the outgoing of the flat foot of SOT encapsulated component to greatly reduced the RDSON error in the test, improved detection quality.

Drawings

Fig. 1 is a schematic view of the overall appearance structure of a novel suction nozzle for hall SOT packaging test provided by the present invention;

FIG. 2 is a schematic structural view of a suction nozzle and a mounting handle of the novel suction nozzle for Hall SOT packaging test provided by the utility model;

fig. 3 is the utility model provides a novel suction nozzle and installation handle overlook the structural schematic diagram of suction nozzle for hall SOT packaging test.

In the figure: the vacuum cleaner comprises an installation handle 1, a positioning groove 2, a suction hole 3, a suction nozzle 4, a limiting groove 41, a limiting block 42, a suction port 43, an element 5 and a pin 51.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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 description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Example one

Referring to fig. 1-3, a novel hall SOT suction nozzle for packaging test, including

suction nozzle

4, 4 below of suction nozzle are equipped with

component

5, 4 lower extremes of suction nozzle offer with component 5 assorted spacing groove 41, link up 4 roof of suction nozzle on the roof of spacing groove 41 and vertically offered induction port 43, fix a position component 5 through spacing groove 41 to cooperate induction port 43 to absorb the component fixedly, conveniently snatch and detect component 5.

Element 5 both sides are equipped with pin 51 of flat foot encapsulation, spacing groove 41 both sides are equipped with stopper 42, stopper 42 lower extreme and pin 51 upper end are laminated mutually, carry on spacingly through stopper 42 to element 5, when examining pin 51, cooperate stopper 42 to support pin 51, avoid pin 51 to warp, guarantee element 5's quality, avoid warping because of the pin 51 that detects and lead to.

When using this suction nozzle to test the hall element of SOT flat foot encapsulation, fix a position component 5 through spacing groove 41, and cooperate induction port 43 to absorb fixedly component 5, and carry component 5 and remove to the test department, the test probe upwards stretches out and contacts with pin 51, in order to guarantee that the test result is accurate, it has certain extrusion force to guarantee between test probe and the pin 51, cooperation stopper 42 supports pin 51 at the top, guarantee the test effect, can avoid pin 51 upwards warpage deformation simultaneously, can effectually avoid the test to cause the influence to component 5, guarantee component 5's quality.

In this embodiment, as shown in fig. 1 to 3, the suction nozzle 4 is made of insulating ceramic, which can ensure an insulating state between the pin 51 and the suction nozzle 4, reduce an influence on an RDSON error, ensure a test effect on the component 5, and prevent the insulating state between the pin 51 and the suction nozzle 4 from influencing accuracy of a package test of the component 5.

In this embodiment, as shown in fig. 2, the cross-sectional shape of the air inlet 43 is an elliptical strip shape matching with the upper end surface of the component 5, so as to increase the contact area between the air inlet 43 and the component 5, improve the adsorption stability of the component 5, ensure the stable suction of the component 5, and improve the accuracy of the packaging test.

In this embodiment, as shown in fig. 1 to 3, the upper end of the suction nozzle 4 is vertically and fixedly connected with a mounting handle 1, and a suction hole 3 communicated with the suction port 43 is vertically formed in the mounting handle 1, so that the suction nozzle 4 is conveniently mounted, and the suction port 43 is also conveniently connected to a negative pressure device in cooperation with the suction hole 3.

In the embodiment, as shown in fig. 1 to 3, a limiting groove 41 is vertically formed in the side wall of the mounting handle 1, so that the positioning groove 2 is conveniently matched to determine the position and the direction of the limiting groove 41, the mounting handle 1 is also conveniently mounted, and the usability of the suction nozzle 4 is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The novel suction nozzle for the Hall SOT packaging test comprises a suction nozzle (4) and is characterized in that an element (5) is arranged below the suction nozzle (4), a limiting groove (41) matched with the element (5) is formed in the lower end of the suction nozzle (4), and an air suction port (43) is vertically formed in the inner top wall of the limiting groove (41) and penetrates through the top wall of the suction nozzle (4);

the pin (51) of flat foot encapsulation is equipped with to component (5) both sides, spacing groove (41) both sides are equipped with stopper (42), stopper (42) lower extreme and pin (51) upper end are laminated mutually.

2. The novel suction nozzle for the Hall SOT packaging test is characterized in that the suction nozzle (4) is made of insulating ceramics.

3. The novel suction nozzle for the Hall SOT packaging test is characterized in that the cross section of the air suction port (43) is in an oval strip shape matched with the upper end face of the element (5).

4. The novel suction nozzle for the Hall SOT packaging test is characterized in that a mounting handle (1) is vertically and fixedly connected to the upper end of the suction nozzle (4), and a suction hole (3) communicated with a suction port (43) is vertically formed in the mounting handle (1).

5. The novel suction nozzle for the Hall SOT packaging test is characterized in that a limiting groove (41) is vertically formed in the side wall of the mounting handle (1).