CN214792887U

CN214792887U - Device for detecting height of arc of bonding wire

Info

Publication number: CN214792887U
Application number: CN202121185612.4U
Authority: CN
Inventors: 方逸裕; 陈杰辉; 李彬; 郑庆喜
Original assignee: SHANTOU HUASHAN ELECTRONIC DEVICES CO Ltd
Current assignee: SHANTOU HUASHAN ELECTRONIC DEVICES CO Ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2021-11-19
Anticipated expiration: 2031-05-31

Abstract

The utility model discloses a simple structure, the inspection result is accurate, can realize high efficiency inspection, can accomplish the high detection device of bonding wire arc of inspection work in batches in short time, including track base and detection reference block, the track base has two different degree of depth and the first track and the second track that are parallel to each other, and the detection reference block is a flat board, articulates at the up end of track base, by the space shape that detection reference block and first track and second track enclose with wait to detect the shape phase-match of product. An operator can visually and conveniently obtain a detection result, particularly visually observe which wire arc height is unqualified, can mark and carry out corresponding treatment, can confirm which product is unqualified when a plurality of products pass through the detection device side by side and pick out the product, and is suitable for detecting the wire arc height of the welding wire of the TO-264 packaging product.

Description

Device for detecting height of arc of bonding wire

Technical Field

The utility model relates to an electronic component detection device specifically is applied to the high detection device of bonding wire arc among the semiconductor device packaging process.

Background

In the traditional technology, the high radian of the product easily causes poor insulation of the packaged product, and the factor must be monitored in all production processes. The method for detecting the height of the wire arc of the welding wire mainly comprises two methods; one method is to use a measuring microscope to detect the arc height by a focusing difference method, and the method has high detection accuracy, but the operation process is more complicated and is not beneficial to conventional batch operation; and in the other method, judgment and comparison are carried out by people by taking a reference object as a reference through visual inspection, so that the method is simple and convenient to operate, but has more artificial factors and is easy to cause misjudgment.

CN206399328U discloses a bonding wire line arc height detection tool, including upper cover plate and lower apron, set up corresponding recess one and recess two respectively on apron and lower apron down, connect to set up in one side of recess two and place the platform, will wait to detect the product and place placing the bench, incline this detection tool, through waiting to detect the product can pass through the space that recess one and recess two constitute smoothly, can be very convenient detect out whether this product bonding wire line arc height is standard. However, the structure is complex, which line arc height is unqualified in unqualified products can not be visually observed, and which product is unqualified product is difficult to be identified when a plurality of products pass through the detection jig side by side, so the detection efficiency is low.

Disclosure of Invention

An object of the utility model is to provide a simple structure, the testing result is accurate, can realize high efficiency inspection, can accomplish the high detection device of bonding wire arc of inspection work in batches in short time.

In order to achieve the above object, the utility model discloses a bonding wire arc height detecting device includes track base and detection reference block, the track base has two different degree of depth and the first track and the second track that are parallel to each other, detects the reference block and is a flat board, articulates the up end at the track base, by the space shape that detection reference block and first track and second track enclose with wait to detect the shape phase-match of product.

Preferably, the detection reference block is a diamond-shaped flat plate. More preferably, the side edge of the detection reference block forms an angle of 45 ° with the side edge of the first track or the second track.

The first track and the second track are preferably connected by a ramp.

The utility model discloses can have better observation angle in the use, the operator can be directly perceived, convenient results of obtaining, especially can audio-visually observe which arc height is unqualified, can mark and carry out corresponding processing, can confirm which product is unqualified product and from which choose when a plurality of products pass through detection device side by side, is applicable TO the detection of TO-264 encapsulation product bonding wire arc height.

Drawings

Fig. 1 is a perspective view of an embodiment of the present invention.

Fig. 2 is a top view of the rail mount.

Fig. 3 is a side view of fig. 2.

Fig. 4 is a plan view of the detection reference block.

FIG. 5 is a schematic diagram of the detection process.

Fig. 6 is a diagram illustrating a state where the height of the wire arc exceeds the standard.

Detailed Description

Fig. 1-4 show the utility model discloses a bonding wire arc height detection device implementation mode, be applicable TO the detection of TO-264 encapsulation product bonding wire arc height. The detection device comprises a track base 1 and a detection reference block 2. The track base 1 is provided with a first track 3 and a second track 4 which are different in depth and parallel to each other, and the first track 3 and the second track 4 are connected by an inclined plane 5. The detection reference block 2 is a rhombic flat plate, is hung on the upper end face of the track base 1, and the included angle A between the side edge of the detection reference block and the side edge of the first channel 3 or the second channel 4 is 45 degrees. The space shape enclosed by the detection reference block 2 and the first channel 3 and the second channel 4 is matched with the shape of the product to be detected.

Fig. 5 shows the utility model discloses TO the testing process of TO-264 encapsulation product, will wait TO detect product 6 and place in first track 3 and second track 4, with track base 1 slope, wait TO detect through the action of gravity that the product slides and detect the space that reference block 2 and first channel 3 and second channel 4 enclose, if pass through smoothly, then product line arc height is qualified, if can not pass through (fig. 6 shows), observation that can be convenient highly unqualified line arc 7 is blocked, can mark and carry out corresponding processing.

Claims

1. The utility model provides a bonding wire arc height detection device, its characterized in that includes track base and detection reference block, the track base has two different degree of depth and first track and the second track that is parallel to each other, detects the reference block and is a flat board, articulates at the up end of track base, and the spatial shape that is enclosed by detection reference block and first track and second track matches with the shape of waiting to detect the product.

2. The detecting device for detecting the rotation of a motor rotor according to claim 1, wherein the detecting reference block is a diamond-shaped flat plate.

3. The detecting device according to claim 2, wherein the side edge of the detecting reference block forms an angle of 45 ° with the side edge of the first track or the second track.

4. The detecting device for detecting the rotation of a motor rotor according to any one of claims 1 to 3, wherein the first track and the second track are connected by a slope.