CN210775257U

CN210775257U - Adjustable bad IC product detection device

Info

Publication number: CN210775257U
Application number: CN201921639010.4U
Authority: CN
Inventors: 张德青; 刘明群; 涂可嘉; 魏世全
Original assignee: Jiangsu Union Semiconductor Co Ltd
Current assignee: Jiangsu Union Semiconductor Co Ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-06-16
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses a bad IC product detection device of adjustable in the IC chip packaging field, including placing the horizontal material area on conveying mechanism, the interval in proper order is provided with a plurality of base plates on taking the material, all is equipped with the IC chip on every base plate, and the mark hole has been seted up to vertical running through on the base plate of bad IC chip, the downside in material area is provided with the detection light sensor that can send the infrared light, detects the light sensor and installs on position control mechanism, and the light emission end axis that detects the light sensor is perpendicular with taking the material, detects the infrared light that the light sensor launches and upwards passes the mark hole, the top in material area is provided with board signal receiver, and board signal receiver can correspond the infrared light that the receipt passed the mark hole. The utility model discloses can improve the discernment efficiency of bad IC product, realize automatic screening bad IC product, the discernment precision is high, avoids bad IC product to flow.

Description

Adjustable bad IC product detection device

Technical Field

The utility model belongs to the IC chip encapsulation field, in particular to bad IC product detection device of adjustable.

Background

In the prior art, an IC chip is a chip formed by placing a large number of microelectronic devices, such as transistors, resistors, capacitors, etc., on a plastic substrate, and then encapsulated in a package to form a microstructure having the required circuit functions. The IC chip is usually made of a monocrystalline silicon wafer, the wafer is cut to form a plurality of small crystal grains, namely the IC chip, a plurality of substrates for the IC chip are usually fixed on the material belt at intervals in sequence, each IC chip on the material belt needs to be inspected, the IC chip detected as a defective product can penetrate through the substrate of the defective IC chip to form a marking hole, and the material belt is conveyed backwards by the conveying mechanism, so that each IC chip is sequentially transmitted to a subsequent processing operation area. Among the prior art, in the transmission in material area, discern bad IC chip through artifical visual observation mark hole at present, reject bad IC chip again, its weak point lies in: the manual observation has low recognition efficiency and low automation degree, and people easily make mistakes due to subjective reasons and flow out bad IC products due to unidentified products, thereby increasing the defective rate.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bad IC product detection device of adjustable can improve the discernment efficiency of bad IC product, realizes automatic screening bad IC product, and the discernment precision is high, avoids bad IC product to flow.

The purpose of the utility model is realized like this: the utility model provides an adjustable bad IC product detection device, is including placing the horizontal material area on conveying mechanism, and the interval is provided with a plurality of base plates in proper order on the material area, all is equipped with the IC chip on every base plate, and the mark hole has been seted up to vertical running through on the base plate of bad IC chip, the downside in material area is provided with the detection light sensor that can send the infrared light, detects the light sensor and installs on position control mechanism, and the light emission end axis that detects the light sensor is mutually perpendicular with the material area, detects the infrared light that the light sensor launches and upwards passes the mark hole, the top in material area is provided with board signal receiver, and board signal receiver can correspond the infrared light of.

When the utility model works, the conveying mechanism drives the material belt to move horizontally forward, and when the material belt moves by one material level, the detection light sensor can upwards emit infrared light; when the IC chip on this material level is the defective products, has the mark hole on the base plate, and the infrared light just in time passes the base plate, and board signal receiver receives the signal, and the IC chip on this material level is the defective products by default to the board, realizes automated inspection and selects bad IC product. Compared with the prior art, the beneficial effects of the utility model reside in that: the identification efficiency of bad IC products can be improved, the identification precision is high, and the outflow of the bad IC products is avoided.

As a further improvement, the machine station signal receiver is electrically connected with the mechanical arm for screening the defective products. When board signal acceptor received the signal, the IC chip on this material level of board acquiescence was the defective products, and the defective products screening manipulator is grabbed the defective IC product on this material level and is distinguished to the waste material.

As a further improvement, position control mechanism includes the stationary mast, the stationary mast upper end is provided with the pole setting, the pole setting is including the screw thread section that is located upper portion and the polished rod section that is located the lower part, polished rod section periphery cover is equipped with the gasket of support on the stationary mast up end, the gasket upside is provided with the alignment jig, the kidney slot has been seted up along length direction on the alignment jig, the vertical alignment jig that runs through of kidney slot sets up, it sets up at the alignment jig front end to detect the light sense ware, the kidney slot setting is upwards passed in the pole setting, the groove width in kidney slot is greater than the diameter of pole setting, the upside of alignment jig is provided with the gland, the centre bore has been seted up at the gland middle part, the polished rod section upwards passes the centre bore setting, the screw thread section periphery threaded connection of pole setting. When the specification of the IC product is changed, the position of the mark hole on the substrate is also changed, the sensing diameter range of the detection light sensor is less than or equal to 5mm, the position of the detection light sensor needs to be adjusted, the detection light sensor corresponds to the position of the mark hole, after the gland nut is loosened, the gland does not compress the adjusting frame any more, the adjusting frame can rotate around the axis of the polished rod, the adjusting frame can move back and forth along the axis of the kidney-shaped groove, the position of the detection light sensor can be adjusted freely in the horizontal plane, after the detection light sensor is adjusted in place, the gland nut is screwed down, and the position of the adjusting frame is compressed and fixed by the gland.

As a further improvement of the utility model, a position adjusting mechanism is arranged above the material belt and corresponds to a reflector which is arranged on an adjuster, the adjuster comprises a fixed seat and a mounting bracket which are connected through a connecting mechanism, the fixed seat has magnetism and is tightly absorbed at the corresponding part of the machine platform, the connecting mechanism comprises a first pressing plate and a second pressing plate which are parallel to each other, two bulbs which are distributed one on the other are arranged between the first pressing plate and the second pressing plate, the first pressing plate and the second pressing plate are locked through bolts and nuts, the axis of the bolt is vertical to the first pressing plate, a spherical through groove is arranged on the second pressing plate and corresponds to each bulb, the right side of each bulb is embedded into the through groove, an upper connecting rod is integrally arranged on the bulb above and is connected with the fixed seat, and a lower connecting rod is integrally arranged on the bulb below, the lower connecting rod is connected with the mounting bracket, and the reflector is fixedly connected on the mounting bracket. After the position of the detection light sensor is adjusted, observing whether a red light spot exists on the reflector or not, and if the red light spot exists, indicating that the detection light sensor corresponds to the marking hole to realize in-place adjustment; after the position of the light sensor is adjusted, the position of the reflector needs to be adjusted to ensure that the reflector can reflect infrared light; after the nut is loosened, the ball head between the first pressing plate and the second pressing plate can be adjusted in a random rotating mode, the positions of the upper connecting rod and the lower connecting rod are changed through rotation of the ball head, and the positions of the fixed seat and the reflector are adjusted.

As the utility model discloses a further improvement, clamp plate one and clamp plate two all set up threaded hole, the both ends of bolt respectively with two screw hole threaded connection, the nut is the goat's horn nut, the right-hand member at the bolt is connected to the goat's horn nut, the goat's horn nut presses on clamp plate two surfaces.

As a further improvement, the mounting bracket includes the installation piece fixed mutually with lower connecting rod, through fastener fixedly connected with mounting panel on the installation piece, reflector fixed connection is in the mounting panel front side. The ball head below the mounting bracket can rotate to drive the position of the reflector on the mounting bracket to change.

As a further improvement, be provided with two PU protective sheaths that parcel lived corresponding bulb between clamp plate one and the clamp plate two, in the bulb stretched into the trepanning that corresponds the protective sheath, the left side and the clamp plate one contact of protective sheath, the right side and the clamp plate two contact of protective sheath. The PU protective sheath can prevent to skid, and avoids the friction between clamp plate and the bulb to produce the piece, thereby prevents that the piece from dropping to influence on the IC chip below and produce property ability.

As a further improvement, the reflector is made of stainless steel, and high-temperature-resistant adhesive tape is pasted around the reflector. The adhesive tape can avoid personnel to cut the hand when snatching the reflector, and the stainless steel reflector only has a reflection light spot, and domestic mirror comprises multilayer structure, leads to domestic mirror to have a plurality of reflection light spots, influences personnel's judgement.

Drawings

Fig. 1 is a top view of the present invention.

Fig. 2 is a front view of the present invention.

Fig. 3 is a front view of the position adjustment mechanism.

Fig. 4 is a partially enlarged view of fig. 3.

Fig. 5 is a top view of the position adjustment mechanism.

Fig. 6 is a schematic view of the structure of the regulator.

Fig. 7 is a cross-sectional view of the attachment mechanism.

The device comprises a material belt 1, a base plate 2, a chip 3, a marking hole 4, a detection light sensor 5, a fixed upright post 6, a vertical rod 7, a thread section 7a, a light rod section 7b, an adjusting frame 8, a kidney-shaped groove 8a, a gland 9, a central hole 9a, a gland nut 10, a reflector 11, a fixed seat 12, a mounting bracket 13, a mounting block 13a, a mounting plate 13b, a first pressing plate 14, a second pressing plate 15, a ball head 16, an upper connecting rod 17, a lower connecting rod 18, a bolt 19, a nut 20, a through groove 21, a protective sleeve 22, a trepanning 22a 22 and a gasket 23.

Detailed Description

As shown in fig. 1-7, an adjustable defective IC product detecting device includes a horizontal material belt 1 disposed on a conveying mechanism, a plurality of substrates 2 are sequentially disposed on the material belt 1 at intervals, an IC chip 3 is disposed on each substrate 2, a marking hole 4 is vertically formed in each substrate 2 of the defective IC chip 3 in a penetrating manner, a detecting light sensor 5 capable of emitting infrared light is disposed on a lower side of the material belt 1, the detecting light sensor 5 is mounted on a position adjusting mechanism, an axis of a light emitting end of the detecting light sensor 5 is perpendicular to the material belt 1, the infrared light emitted by the detecting light sensor 5 upwardly passes through the marking hole 4, a machine signal receiver is disposed above the material belt 1, and the machine signal receiver can correspondingly receive the infrared light passing through the marking hole 4. The machine station signal receiver is electrically connected with the defective product screening manipulator. Position adjustment mechanism includes fixed upright 6, 6 upper ends of fixed upright are provided with pole setting 7, pole setting 7 is including being located the threaded section 7a on upper portion and the polished rod section 7b that is located the lower part, polished rod section 7b periphery cover is equipped with the gasket 23 of support on 6 up end of fixed upright, gasket 23 upside is provided with alignment jig 8, kidney-shaped groove 8a has been seted up along length direction on the alignment jig 8, the vertical setting that runs through alignment jig 8 that waist-shaped groove 8a is vertical, it sets up at 8 front ends to detect light sense ware 5, pole setting 7 upwards passes kidney-shaped groove 8a and sets up, the groove width of kidney-shaped groove 8a is greater than the diameter of pole setting 7, the upside of alignment jig 8 is provided with gland 9, centre bore 9a has been seted up at the gland 9 middle part, polished rod section 7b upwards passes centre bore 9a and sets up, the threaded section 7a periphery threaded connection of pole setting 7 has gland nut 10, the lower terminal. A reflective mirror 11 is arranged above the material belt 1 and corresponds to a position adjusting mechanism, the reflective mirror 11 is arranged on an adjuster, the adjuster comprises a fixed seat 12 and a mounting bracket 13, the fixed seat 12 is connected with the mounting bracket 13 through a connecting mechanism, the fixed seat 12 has magnetism, the fixed seat 12 is tightly absorbed at a corresponding position of the machine platform, the connecting mechanism comprises a first pressing plate 14 and a second pressing plate 15 which are parallel to each other, two bulbs 16 which are distributed one above the other are arranged between the first pressing plate 14 and the second pressing plate 15, the first pressing plate 14 and the second pressing plate 15 are locked through bolts 19 and nuts 20, the axis of the bolts 19 is vertical to the first pressing plate 14, a spherical through groove 21 is arranged on each bulb 16 on the second pressing plate 15, the right side of each bulb 16 is embedded into the through groove 21, an upper connecting rod 17 is integrally arranged on the bulb 16 above, the upper connecting rod 17 is connected with the fixed seat 12, a lower connecting rod, the lower connecting rod 18 is connected with the mounting bracket 13, and the reflective mirror 11 is fixedly connected on the mounting bracket 13. The first pressing plate 14 and the second pressing plate 15 are both provided with threaded holes, two ends of the bolt 19 are respectively in threaded connection with the two threaded holes, the nut 20 is a claw nut, the claw nut is connected to the right end of the bolt 19, and the claw nut is pressed on the surface of the second pressing plate 15. The mounting bracket 13 comprises a mounting block 13a fixed with the lower connecting rod 18, a mounting plate 13b is fixedly connected to the mounting block 13a through a fastener, and the reflective mirror 11 is fixedly connected to the front side of the mounting plate 13 b. Two PU protective sleeves 22 wrapping the corresponding ball heads 16 are arranged between the first pressing plate 14 and the second pressing plate 15, the ball heads 16 extend into sleeve holes 22a of the corresponding protective sleeves 22, the left sides of the protective sleeves 22 are in contact with the first pressing plate 14, and the right sides of the protective sleeves 22 are in contact with the second pressing plate 15. The reflective mirror 11 is made of stainless steel materials, and high-temperature-resistant adhesive tape is pasted around the reflective mirror 11.

When the utility model works, the conveying mechanism drives the material belt 1 to move horizontally forward, and when the material belt 1 moves a material level, the detection light sensor 5 can emit infrared light upwards, when the IC chip 3 on the material level is qualified, no mark hole 4 is arranged on the base plate 2, the infrared light can not pass through the base plate 2, the machine signal receiver can not receive signals, and the machine defaults that the IC chip 3 on the material level is qualified; when the IC chip 3 on the material level is a defective product, the substrate 2 is provided with a marking hole 4, infrared light just passes through the substrate 2, a machine signal receiver receives a signal, and a machine defaults that the IC chip 3 on the material level is a defective product, so that the automatic detection and screening of a defective IC product are realized; when the specification of an IC product is changed, the position of the marking hole 4 on the substrate 2 is also changed, and the sensing diameter range of the detection light sensor 5 is less than or equal to 5mm, so that the position of the detection light sensor 5 needs to be adjusted, the positions of the detection light sensor 5 and the marking hole 4 correspond to each other, after the compression nut 2010 is loosened, the gland 9 does not compress the adjusting frame 8 any more, the adjusting frame 8 can rotate around the axis of the polished rod, the adjusting frame 8 can move back and forth along the axis of the kidney-shaped groove 8a, the position of the detection light sensor 5 can be adjusted freely in the horizontal plane, and after the detection light sensor 5 is adjusted in place, the compression nut 10 is screwed down, so that the gland 9 compresses and fixes the position of the; after the position of the detection light sensor 5 is adjusted, observing whether a red light spot exists on the reflective mirror 11, if so, indicating that the detection light sensor 5 is already corresponding to the marking hole 4 to realize the in-place adjustment; after the position of the light sensor 5 is adjusted, the position of the reflective mirror 11 needs to be adjusted to ensure that the reflective mirror 11 can reflect infrared light; after the nut 20 is loosened, the ball head 16 between the first pressure plate 14 and the second pressure plate 15 can be adjusted in a random rotating mode, and the positions of the upper connecting rod 17 and the lower connecting rod 18 are changed through rotation of the ball head 16, so that the positions of the fixed seat 12 and the reflector 11 are adjusted. The utility model discloses can improve the discernment efficiency of bad IC product, and the discernment precision is high, avoids bad IC product to flow.

The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and transformations for some technical features without creative labor according to the disclosed technical contents, and these replacements and transformations are all within the protection scope of the present invention.

Claims

1. The utility model provides an adjustable bad IC product detection device, is including placing the horizontal material area on conveying mechanism, and the interval is provided with a plurality of base plates in proper order on the material area, all is equipped with the IC chip on every base plate, and the mark hole has been seted up to vertical running through on the base plate of bad IC chip, a serial communication port, the downside in material area is provided with the detection light sensor that can send infrared light, detects the light sensor and installs on position control mechanism, and the light emission end axis that detects the light sensor is mutually perpendicular with the material area, detects the infrared light that the light sensor launches and upwards passes the mark hole, the top in material area is provided with board signal receiver, and board signal receiver can correspond the infrared light that.

2. The adjustable defective IC product detecting apparatus as claimed in claim 1, wherein the machine signal receiver is electrically connected to a defective product sorting robot.

3. An adjustable defective IC product detecting device according to claim 1 or 2, its characterized in that, position control mechanism includes the stationary mast, the stationary mast upper end is provided with the pole setting, the pole setting is including the screw thread section that is located upper portion and the polished rod section that is located the lower part, polished rod section periphery cover is equipped with the gasket of support on the stationary mast up end, the gasket upside is provided with the alignment jig, the kidney slot has been seted up along length direction on the alignment jig, the vertical alignment jig that runs through of kidney slot sets up, it sets up at the alignment jig front end to detect the light sense ware, the pole setting upwards passes the kidney slot setting, the groove width in kidney slot is greater than the diameter of pole setting, the upside of alignment jig is provided with the gland, the centre bore has been seted up at the gland middle part, the polished rod section upwards passes the centre bore setting, the screw thread section periphery threaded connection.

4. An adjustable defective IC product detecting device according to claim 1 or 2, wherein a position adjusting mechanism is further provided above the material belt, a reflective mirror is provided above the adjusting mechanism, the reflective mirror is mounted on the adjusting mechanism, the adjusting mechanism comprises a fixing seat and a mounting bracket, the fixing seat and the mounting bracket are connected through a connecting mechanism, the fixing seat has magnetism, the fixing seat is tightly absorbed at a corresponding position of the machine table, the connecting mechanism comprises a first pressing plate and a second pressing plate which are parallel to each other, two ball heads are arranged between the first pressing plate and the second pressing plate, the first pressing plate and the second pressing plate are distributed one above the other and locked through a bolt and a nut, the axis of the bolt is perpendicular to the first pressing plate, a spherical through groove is provided on each ball head on the second pressing plate, the right side of the ball head is embedded into the through groove, an upper connecting rod is integrally provided on the ball head above, and the upper, the lower connecting rod is integrally arranged on the ball head located below and connected with the mounting bracket, and the reflector is fixedly connected to the mounting bracket.

5. The adjustable defective IC product detection device according to claim 4, wherein the first pressing plate and the second pressing plate are both provided with threaded holes, two ends of the bolt are respectively in threaded connection with the two threaded holes, the nut is a claw nut, the claw nut is connected to the right end of the bolt, and the claw nut is pressed against the surfaces of the two pressing plates.

6. The adjustable defective IC product detecting device of claim 4, wherein the mounting bracket includes a mounting block fixed to the lower connecting rod, the mounting block is fixedly connected to a mounting plate by a fastener, and the reflective mirror is fixedly connected to a front side of the mounting plate.

7. The adjustable defective IC product detection device according to claim 4, wherein two PU protective sleeves wrapping corresponding ball heads are arranged between the first pressing plate and the second pressing plate, the ball heads extend into sleeve holes of the corresponding protective sleeves, the left sides of the protective sleeves are in contact with the first pressing plate, and the right sides of the protective sleeves are in contact with the second pressing plate.

8. The adjustable defective IC product detecting device of claim 4, wherein the reflective mirror is made of stainless steel material, and a high temperature resistant adhesive tape is adhered around the reflective mirror.