CN202332813U

CN202332813U - Lifting suction nozzle applicable to light lamellate components

Info

Publication number: CN202332813U
Application number: CN2011204519940U
Authority: CN
Inventors: 蒋李望
Original assignee: Yangzhou Yangjie Electronic Co Ltd
Current assignee: Yangzhou Yangjie Electronic Co Ltd
Priority date: 2011-11-16
Filing date: 2011-11-16
Publication date: 2012-07-11
Anticipated expiration: 2021-11-16

Abstract

The utility model discloses a lifting suction nozzle applicable to light lamellate components, relates to a suction device for accurately picking, moving, positioning and placing a lamellate semi-conductor chip, and provides the lifting suction nozzle applicable to light lamellate components, which is simpler in structure, does not damage the chip and can realize accuracy in placement. The lifting suction nozzle comprises a flexible suction nozzle body, a cylinder body, a piston, a flexible push needle and a negative pressure source; a through hole communicated with the inner chamber of the cylinder body is formed on the flexible suction nozzle; the flexible push needle is arranged in the through hole; the top end of the flexible push needle is fixedly connected to the bottom of the piston; an air hole communicated with the negative pressure source is formed in the top surface of the cylinder body; and at least one groove allowing the inner chamber of the cylinder body to be communicated with the air hole is formed in the top surface of the piston. The suction nozzle provided by the utility model can place a chip in a position accurately without adhesion assistance measures under the condition of no additional control; and the lifting suction nozzle is strong in practicability and high in reliability, and is particularly suitable for the procedures of accurately picking, moving, positioning and placing minute thin chips.

Description

Be applicable to handling suction nozzles light, thin slice shape components and parts

Technical field

The utility model relates to a kind of handling suction nozzles light, thin slice shape components and parts that are applicable to, relates in particular to the suction means that the chip-Size semiconductor chip is accurately picked up, moves, locatees, places.

Background technology

Semiconductor chip is a kind of promptly light thin again material; Chip is discharged the influence that brings in order to overcome Electrostatic Absorption, material adhesion; Automatically pick up the used suction nozzle of sheet machine and generally all carry out surface treatment, or adopt the method for compressed air vacuum breaker to solve chip placement problem.Even if adopted said method, pick up the sheet machine automatically at present and generally can only chip be placed on the position of adhesivess such as scribbling soldering paste, red glue, or do not have the accurately occasion of requirement.Accurately locate and do not have under the situation that adhesives helps at needs, pick up the sheet machine automatically chip is placed on as in the technological equipments such as positioning disk, remain at chip and discharge unstable phenomenon of " blowing " the race chip with compressed air.

Although there is the applicant that this is proposed the innovative technology scheme in the prior art, like the disclosed CN1638068A of the 2005.7.13. of State Intellectual Property Office (pick device of semiconductor chip and pick-up method), the disclosed CN101148226A of 2008.3.26. (pick-up and have the head assembly of this pick-up); The former provides a kind of can not be that semiconductor chip is damaged, and the technical scheme that can peel off from adhesion tablet, around " peeling off " function concrete technical measures is provided.The latter provides a kind of pick-up simple in structure, and it comprises upper and lower mobile nozzle, and malleation and negative pressure adopt negative pressure absorption, malleation to discharge.This kind technical measures are difficult to keep the positional precision of placing during to the less chip of size, quality.

The utility model content

The utility model provides a kind of structure more succinct to above problem, does not damage chip, can realize being applicable to of exact position placement handling suction nozzles light, thin slice shape components and parts.

The technical scheme of the utility model is: comprise that flexible suction nozzle, cylinder body, piston, flexibility push pin and negative pressure source; Said flexible mouth seat is fixedly connected on the below of cylinder body; Offer the through hole of the said inner chamber of cylinder block of UNICOM on the said flexible suction nozzle; Said flexibility is pushed pin and is arranged in the said through hole, and the length that said flexibility is pushed pin is greater than the length of said through hole, and the diameter that said flexibility is pushed pin is less than the diameter of said through hole, and the top that said flexibility is pushed pin is fixedly connected on the bottom of said piston; The diameter of said piston is less than the diameter of said inner chamber of cylinder block; The end face of said cylinder body is provided with the pore of the said negative pressure source of UNICOM; Offer on the end face of said piston at least one make the said pore of said inner chamber of cylinder block UNICOM groove.

The lower surface of said piston is that face contacts with the bottom surface of said cylinder body.

The pore of said cylinder deck is located at the center of said cylinder deck, and the groove on the said piston is cross on piston-top surface.

Said flexible suction nozzle links to each other with said cylinder body through the suction nozzle seat that is provided with mesopore, and said suction nozzle seat is fixedly connected on the bottom of cylinder body, and said suction nozzle is fixedly connected on the bottom of suction nozzle seat, the diameter that the diameter of said suction nozzle seat mesopore is pushed pin greater than said flexibility.

The base area of said flexible suction nozzle is less than the top surface area of said light, thin slice shape components and parts.

The utility model adopts flexible material (like nonmetallic materials such as rubber, plastics, resins) to make suction nozzle and push pin; When absorption, maintenance, releasing action; Can avoid defective chip (existing chip surface generally has the passivation protection layer, very easily produces mechanical damage).Owing to adopted flexible material to make suction nozzle, after negative-pressure adsorption, also possibly exist " tension force or adhesion " to make chip be difficult to break away from the suction nozzle bottom surface even if remove negative pressure; The piston of this case has the effect of " weight " concurrently, when negative pressure is worked, at first is piston to be pushed pin together with flexibility pick up, and negative pressure produces absorption affinity through the through hole of suction nozzle to chip then; During release, piston together with the whereabouts of pushing pin, pushes away the suction nozzle bottom surface with chip under action of gravity, and then accomplishes releasing action.The suction nozzle of the utility model compare with prior art need not to add in addition under the situation of control, chip is placed on the exact position that does not adhere to ancillary method; Structure is simpler, and is practical, and reliability is high, and what especially adapt to small (size 1-8mm) thin type chip accurately picks up, moves, locatees, places operation.

Description of drawings

Fig. 1 is the structural representation of the utility model,

Fig. 2 is an A-A cutaway view among Fig. 1,

Fig. 3 be the utility model user mode with reference to figure one,

Fig. 4 is that the utility model user mode is with reference to figure two;

1 is flexible suction nozzle among the figure, the 11st, and through hole, the 2nd, flexibility is pushed pin, and the 3rd, suction nozzle seat, the 31st, mesopore, the 4th, piston, the 41st, groove, the 42nd, gap, the 5th, cylinder body, the 51st, inner chamber of cylinder block, the 6th, end cap, the 61st, pore, the 7th, chip.

Embodiment

The utility model is like Fig. 1, shown in 2, comprises that flexible suction nozzle 1, cylinder body 5, piston 4, flexibility push pin 2 and negative pressure source; Said flexible mouth seat 1 is fixedly connected on the below of cylinder body 5; Flexible suction nozzle 1 and cylinder body 5 concentrics offer the through hole 11 of the said inner chamber of cylinder block 51 of UNICOM on the flexible suction nozzle 1; Said flexibility is pushed pin and 2 is arranged in the said through hole 11, and said flexibility is pushed pin 2 length greater than the length of said through hole 11, and said flexibility is pushed pin 2 diameter less than the diameter of said through hole 11, and push pin 2 top of said flexibility is fixedly connected on the bottom of said piston 4; The diameter of said piston 4 makes to have certain clearance 42 between the two less than the diameter of said inner chamber of cylinder block 51; The end face of said cylinder body 5 is provided with the pore 61 (being opened on the end cap 6 of cylinder body 5 end faces) of the said negative pressure source of UNICOM; Offer on the end face of said piston 4 at least one make the said pore 61 of said inner chamber of cylinder block 51 UNICOMs groove 41.

The lower surface of said piston 4 is that face contacts with the bottom surface of said cylinder body 5.When negative pressure starts, can at first piston 4 be picked up like this, make flexibility push pin in the 2 indentation through holes 11.

The pore 61 of said cylinder body 5 end faces is located at the center (being the center of end cap 6) of said cylinder body 5 end faces, and the groove 41 on the said piston 4 is cross on piston 4 end faces.When drawing chip 7, vacuum drives on the piston 4 and moves, and " ten " word groove can not stop up vacuum passage (through hole 11, gap 42, inner chamber of cylinder block 51 constitute) because of moving on the piston 4; When needs releasing chips 7, piston 4 relies on self gravitations to move down to drive flexible pushing pin 2 can realize shirking the chip 7 that flexible suction nozzle 1 adheres to.Like Fig. 3, shown in 4.

Said flexible suction nozzle 1 links to each other with said cylinder body 5 through the suction nozzle seat 3 that is provided with mesopore 31; Said suction nozzle seat 3 is fixedly connected on the bottom of cylinder body 5; Said suction nozzle 1 is fixedly connected on the bottom of suction nozzle seat 3; The diameter of the mesopore 31 of said suction nozzle seat 3 is greater than push pin 2 diameter of said flexibility, and is preferably consistent with the diameter of through hole 11.

The base area of said flexible suction nozzle 1 is less than the top surface area of said light, thin slice shape components and parts (being chip 7).Can avoid the passivation protection layer at contact chip 7 edges so as far as possible.

Claims

1. be applicable to handling suction nozzles light, thin slice shape components and parts, it is characterized in that, comprise that flexible suction nozzle, cylinder body, piston, flexibility push pin and negative pressure source; Said flexible mouth seat is fixedly connected on the below of cylinder body; Offer the through hole of the said inner chamber of cylinder block of UNICOM on the said flexible suction nozzle; Said flexibility is pushed pin and is arranged in the said through hole, and the length that said flexibility is pushed pin is greater than the length of said through hole, and the diameter that said flexibility is pushed pin is less than the diameter of said through hole, and the top that said flexibility is pushed pin is fixedly connected on the bottom of said piston; The diameter of said piston is less than the diameter of said inner chamber of cylinder block; The end face of said cylinder body is provided with the pore of the said negative pressure source of UNICOM; Offer on the end face of said piston at least one make the said pore of said inner chamber of cylinder block UNICOM groove.

2. according to claim 1ly be applicable to handling suction nozzles light, thin slice shape components and parts, it is characterized in that the lower surface of said piston is that face contacts with the bottom surface of said cylinder body.

3. according to claim 1ly be applicable to handling suction nozzles light, thin slice shape components and parts, it is characterized in that the pore of said cylinder deck is located at the center of said cylinder deck, the groove on the said piston is cross on piston-top surface.

4. according to claim 1ly be applicable to handling suction nozzles light, thin slice shape components and parts; It is characterized in that; Said flexible suction nozzle links to each other with said cylinder body through the suction nozzle seat that is provided with mesopore; Said suction nozzle seat is fixedly connected on the bottom of cylinder body, and said suction nozzle is fixedly connected on the bottom of suction nozzle seat, the diameter that the diameter of said suction nozzle seat mesopore is pushed pin greater than said flexibility.

5. according to arbitrary described handling suction nozzles light, thin slice shape components and parts that are applicable among the claim 1-4, it is characterized in that the base area of said flexible suction nozzle is less than the top surface area of said light, thin slice shape components and parts.