CN206992056U - Semiconductor packages automation Trim Molding machine feed rail gets stuck stack error-proof structure - Google Patents
Semiconductor packages automation Trim Molding machine feed rail gets stuck stack error-proof structure Download PDFInfo
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- CN206992056U CN206992056U CN201720617080.4U CN201720617080U CN206992056U CN 206992056 U CN206992056 U CN 206992056U CN 201720617080 U CN201720617080 U CN 201720617080U CN 206992056 U CN206992056 U CN 206992056U
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- feed rail
- type sensor
- opposite type
- pushing hands
- molding machine
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Abstract
It the utility model is related to a kind of semiconductor packages automation Trim Molding machine feed rail to get stuck stack error-proof structure, it includes feed rail（2）, charging pushing hands（3）With pinch roller track（8）, the feed rail（2）Rear is provided with opposite type sensor transmitting terminal pedestal（13）, the opposite type sensor transmitting terminal pedestal（13）On be provided with opposite type sensor（14）Transmitting terminal, the feed rail（2）Front is provided with opposite type sensor receiving terminal pedestal（17）, the opposite type sensor receiving terminal pedestal（17）On be provided with opposite type sensor（14）Receiving terminal, the charging pushing hands（3）On be provided with charging pushing hands feedback overload features（15）.A kind of semiconductor packages of the utility model automation Trim Molding machine feed rail gets stuck stack error-proof structure; it exports disorderly closedown by the sensor of installation and alarmed in time; problematic tablet is fed back early; product rejection will not be caused because of OP carelessness, while reach the purpose for improving encapsulation yield.
Description
Technical field
A kind of semiconductor packages automation Trim Molding machine feed rail is the utility model is related to get stuck stack error-proof structure,
Belong to technical field of semiconductor encapsulation.
Background technology
In semiconductor package process, need chip being fixed in the die pad of lead frame first, and described in utilization
Several bonding wires carry out routing operation, by several connection pads on the chip, described several pins are electrically connected.
Then recycle plastic packaging material to carry out encapsulating operation, plastic packaging material is coated the upper surface of the chip, bonding wire and lead frame, it is described
The lower surface of lead frame is exposed to outside plastic packaging material.After operation is encapsulated, make pin and lead frame using Trim Molding machine
Separate and form specific shape, so that adjacent unit separates each other, to complete semiconductor package singulation.
In existing semiconductor packages automates Trim Molding machine, typically sense signal and then feedback by inductor
Go out position and the state of product.When sensor sensing is to product signal, signal is passed to PLC by sensor, PLC according to setting
The order of the next action of fixed program transportation, worked with this sequential loop, so as to reach equipment automatization purpose.
Existing automation Trim Molding machine feeding manner is as shown in figure 1, existing board feed pieces are described as follows：
Tablet 1：Semiconductor chip flows into Trim Molding process by processes such as assembling, encapsulatings, and product is unformed in framework
Strip is showed before separation；
Feed rail 2：Handgrip is caught tablet 1 on feed rail 2, waits and pushing in next step；
Feed pushing hands 3：Tablet 1 in feed rail 2 is pushed into pinch roller transmission track 8；
Pushing hands sliding block 4：Ensure that charging pushing hands 3 is moved along fixed track is smooth；
Slide attachment plate 5：Connection charging pushing hands 3 and the part of sliding block 4；
Feed belt 6：Feed pushing hands servo motor M4 by feed belt 6 drive charging pushing hands 3 along pushing hands sliding block 4 back and forth
Motion；
Pinch roller transmission track 8：Tablet 1 is pushed on this track, waits pinch roller transmission；
Pinch roller 9：After tablet 1 is pushed on pinch roller transmission track 8, transmission tablet is coordinated by upper lower pressure wheel；
Pinch roller servo motor 10：Pinch roller of the driving in the lower position of pinch roller transmission track 8；
Die tracks 11：After tablet 1 is sent in die tracks 11, after stepping handgrip 12 navigates to tablet, transmission material
Piece 1 enters Trim Molding mould；
Stepping handgrip 12：Accurate transmission tablet enters Trim Molding mould.
Tablet 1 is entered feed rail 2 by handgrip, and feed rail tablet detection sensor 114 detects the presence of tablet 1, entered
Expect pushing hands servo motor M4 operatings, charging pushing hands 3 pushes tablet 1 to the top of tablet detection sensor at feed 400.Pinch roller transmits
Pinch roller 9 on track 8 continues to transmit tablet 1 to die tracks 11, and die tracks porch tablet detection sensor 401 detects
To tablet, stepping handgrip 12 navigates to tablet, and tablet 1 enters mould with stepping handgrip 12, so as to reach the mesh being fed to mould
's.
Following defect be present in existing feeding manner：
1st, when tablet corner crimps, when charging pushing hands transmits tablet, tablet is easily stuck at feed rail pit injustice
Or feed rail and pinch roller transmission track joining place, and feed pushing hands and still may proceed to push tablet, this will cause tablet to occur more
Serious curling is even scrapped；
2nd, when the both sides of tablet 1 tilt, after tablet is put into feed rail 2 by handgrip, because tablet 1 tilts position from charging
The distance of the sensing region of track tablet detection sensor 114 exceeds the detecting distance of sensor 114, and sensor fails to detect material
Piece 1 has been enter into feed rail 2, can order handgrip capture tablet again and be put into feed rail 2, cause two panels tablet to be stacked together
Phenomenon, now feed rail tablet detection sensor 114 sense tablet 1, charging pushing hands 3 pushes tablet 1 and expected at feed
The opening position of piece detection sensor 400, pinch roller 9 start to transmit tablet, double-sheet can be caused to be completely superposed into die tracks, caused
Product rejection.
Utility model content
Technical problem to be solved in the utility model is automatic for a kind of semiconductor packages of above-mentioned prior art offer
To change Trim Molding machine feed rail to get stuck stack error-proof structure, it exports disorderly closedown by the sensor of installation and alarmed in time,
Problematic tablet is fed back early, product rejection will not be caused because of the carelessness of operating personnel, while reaches raising envelope
Fill the purpose of yield.
The technical scheme in the invention for solving the above technical problem is：A kind of semiconductor packages automates Trim Molding
Machine feed rail gets stuck stack error-proof structure, and it includes feed rail, charging pushing hands and pinch roller track, the feed rail rear
Opposite type sensor transmitting terminal pedestal is provided with, the transmitting of opposite type sensor is provided with the opposite type sensor transmitting terminal pedestal
End, the feed rail front are provided with opposite type sensor receiving terminal pedestal, set on the opposite type sensor receiving terminal pedestal
There is the receiving terminal of opposite type sensor, charging pushing hands feedback overload features are provided with the charging pushing hands, the charging pushing hands is anti-
Offered in the horizontal direction to perforation on feedback overload features, the transmitting terminal of the opposite type sensor, the receiving terminal of opposite type sensor
It is located along the same line with to perforation.
The aperture to perforation is consistent with the transmitting terminal of opposite type sensor and the diameter of receiving terminal.
The charging pushing hands feedback overload features are hinged with charging pushing hands by connecting shaft, and folder is set with the connecting shaft
Angle spring.
The installation site of opposite type sensor plane on feed rail tablet has 3mm buffer height.
The pinch roller track entrance is provided with pinch roller track limit thick parts.
The size of the pinch roller track limit thick parts is 1.5 times of tablet seal ring thickness after plating.
Compared with prior art, the utility model has the advantage of：
1st, during the warpage of product corner, when tablet is stuck in feed rail somewhere, charging pushing hands push tablet meets with obstruction, and feeds
Feedback overload features in pushing hands can drive charging pushing hands to tilt in time, so as to block the light path of opposite type sensor described above,
Cause fault alarm, pushing hands motor M4 power-off is stopped, and effectively evades the deformation of tablet secondary coil；
2nd, tablet is tilted for both sides, tilts height superelevation 3mm, the opposite type sensor of above-mentioned selection can export failure automatically
Alarm, the M4 power-off of charging pushing hands motor are stopped；
3rd, push product for two tablet overlapping cases, the charging pushing hands of feedback overload described above and limited to pinch roller track
During thick parts position, pushing hands, which meets obstructions, to tilt immediately, trigger fault alarm, and the M4 power-off of charging pushing hands motor is stopped,
Double-deck stack is thoroughly avoided to enter the risk of mould on feed rail.
Brief description of the drawings
Fig. 1 is the schematic diagram of existing automation Trim Molding machine feeding manner.
Fig. 2 is that a kind of semiconductor packages of the utility model automates Trim Molding machine feed rail and got stuck stack error-proof structure
Schematic diagram.
Fig. 3 is that a kind of semiconductor packages of the utility model automates Trim Molding machine feed rail and got stuck stack error-proof structure
Solid be abstracted layout drawing.
Wherein：
Tablet 1
Feed rail 2
Feed pushing hands 3
Pushing hands sliding block 4
Slide attachment plate 5
Feed belt 6
Synchronizing wheel 7
Pinch roller transmission track 8
Pinch roller 9
Pinch roller servo motor 10
Die tracks 11
Stepping handgrip 12
Opposite type sensor transmitting terminal pedestal 13
Opposite type sensor 14
Feed pushing hands feedback overload features 15
Pinch roller track limits thick parts 16
Opposite type sensor receiving terminal pedestal 17
Feed pushing hands servo motor M4
Feed rail tablet detection sensor 114
Tablet detection sensor 400 at feed
Track entrance tablet detection sensor 401.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
The stack as shown in Fig. 2 a kind of semiconductor packages automation Trim Molding machine feed rail in the present embodiment gets stuck
Error-proof structure, it includes feed rail 2 and charging pushing hands 3, and the upper rear of the feed rail 2 is provided with opposite type sensor transmitting
End group seat 13, the transmitting terminal of opposite type sensor 14, the feed rail 2 are provided with the opposite type sensor transmitting terminal pedestal 13
Upper front be provided with opposite type sensor receiving terminal pedestal 17, the opposite type sensor receiving terminal pedestal 17 is located at pinch roller track 8
Top, the receiving terminal of opposite type sensor 14 is provided with the opposite type sensor receiving terminal pedestal 17, is set in the charging pushing hands 3
Charging pushing hands feedback overload features 15 are equipped with, are offered in the horizontal direction on the charging pushing hands feedback overload features 15 to penetrating
Hole, the transmitting terminal of the opposite type sensor 14, the receiving terminal of opposite type sensor 14 and is located along the same line to perforation；
The aperture to perforation is consistent with the transmitting terminal of opposite type sensor 14 and the diameter of receiving terminal；
The charging pushing hands feedback overload features 15 are hinged with charging pushing hands 3 by connecting shaft, are set with the connecting shaft
There is angle spring, the elastic force of angle spring should not be excessive, it is ensured that the material that the charging pushing hands push of the feedback overload meets with obstruction
During piece, pushing hands can upspring in time, and the sensor is blocked light path, therefore exports fault alarm, and charging pushing hands servo motor M4 stops
Only work, reach the effect for stopping pusher, so as to play a part of protecting tablet；
The installation site of the opposite type sensor 14 plane on the tablet colloid of feed rail 2 has 3mm buffer height；
The porch of pinch roller track 8 is provided with pinch roller track limit thick parts 16, the pinch roller track limit thick parts 16
Size is 1.5 times of tablet seal ring thickness after plating.
In addition to the implementation, the utility model also includes other embodiment, all to use equivalents or equivalent
The technical scheme that substitute mode is formed, all should fall within the protection domain of the utility model claims.
Claims (6)
- The stack error-proof structure 1. a kind of semiconductor packages automation Trim Molding machine feed rail gets stuck, it is characterised in that：It is wrapped Include feed rail（2）, charging pushing hands（3）With pinch roller track（8）, the feed rail（2）Upper rear be provided with to penetrate sensing Device transmitting terminal pedestal（13）, the opposite type sensor transmitting terminal pedestal（13）On be provided with opposite type sensor（14）Transmitting terminal, The feed rail（2）Upper front be provided with opposite type sensor receiving terminal pedestal（17）, the opposite type sensor reception end group Seat（17）On be provided with opposite type sensor（14）Receiving terminal, the charging pushing hands（3）On be provided with charging pushing hands feedback overload Part（15）, the charging pushing hands feedback overload features（15）On offer in the horizontal direction to perforation, the opposite type sensor （14）Transmitting terminal, opposite type sensor（14）Receiving terminal and perforation is located along the same line.
- The stack fool proof knot 2. a kind of semiconductor packages automation Trim Molding machine feed rail according to claim 1 gets stuck Structure, it is characterised in that：The aperture and opposite type sensor to perforation（14）Transmitting terminal it is consistent with the diameter of receiving terminal.
- The stack fool proof knot 3. a kind of semiconductor packages automation Trim Molding machine feed rail according to claim 1 gets stuck Structure, it is characterised in that：The charging pushing hands feedback overload features（15）With feeding pushing hands（3）It is hinged by connecting shaft, the company Angle spring is set with spindle.
- The stack fool proof knot 4. a kind of semiconductor packages automation Trim Molding machine feed rail according to claim 1 gets stuck Structure, it is characterised in that：The opposite type sensor（14）Installation site apart from feed rail（2）Plane has 3mm on tablet colloid Buffer height.
- The stack fool proof knot 5. a kind of semiconductor packages automation Trim Molding machine feed rail according to claim 1 gets stuck Structure, it is characterised in that：The pinch roller track（8）Porch is provided with pinch roller track limit thick parts（16）.
- The stack fool proof knot 6. a kind of semiconductor packages automation Trim Molding machine feed rail according to claim 5 gets stuck Structure, it is characterised in that：The pinch roller track limits thick parts（16）Size be 1.5 times of tablet seal ring thickness after plating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720617080.4U CN206992056U (en) | 2017-05-31 | 2017-05-31 | Semiconductor packages automation Trim Molding machine feed rail gets stuck stack error-proof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720617080.4U CN206992056U (en) | 2017-05-31 | 2017-05-31 | Semiconductor packages automation Trim Molding machine feed rail gets stuck stack error-proof structure |
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| Publication Number | Publication Date |
|---|---|
| CN206992056U true CN206992056U (en) | 2018-02-09 |
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| CN201720617080.4U Active CN206992056U (en) | 2017-05-31 | 2017-05-31 | Semiconductor packages automation Trim Molding machine feed rail gets stuck stack error-proof structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542451A (en) * | 2018-05-29 | 2019-12-06 | 台湾积体电路制造股份有限公司 | Error detection method and manufacturing facility |
| CN113415484A (en) * | 2021-06-24 | 2021-09-21 | 华天科技（西安）有限公司 | Plastic packaging equipment preheating platform and production method for preventing material stacking and wire collapsing |
| CN116313944A (en) * | 2023-05-23 | 2023-06-23 | 苏州赛肯智能科技有限公司 | Black glue fool-proof mechanism of mould-entering carrying grabbing mechanism |
-
2017
- 2017-05-31 CN CN201720617080.4U patent/CN206992056U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542451A (en) * | 2018-05-29 | 2019-12-06 | 台湾积体电路制造股份有限公司 | Error detection method and manufacturing facility |
| CN113415484A (en) * | 2021-06-24 | 2021-09-21 | 华天科技（西安）有限公司 | Plastic packaging equipment preheating platform and production method for preventing material stacking and wire collapsing |
| CN116313944A (en) * | 2023-05-23 | 2023-06-23 | 苏州赛肯智能科技有限公司 | Black glue fool-proof mechanism of mould-entering carrying grabbing mechanism |
| CN116313944B (en) * | 2023-05-23 | 2023-08-08 | 苏州赛肯智能科技有限公司 | Black glue fool-proof mechanism of mould-entering carrying grabbing mechanism |
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