CN205789916U - A kind of anti-offset thimble system - Google Patents
A kind of anti-offset thimble system Download PDFInfo
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- CN205789916U CN205789916U CN201620681395.0U CN201620681395U CN205789916U CN 205789916 U CN205789916 U CN 205789916U CN 201620681395 U CN201620681395 U CN 201620681395U CN 205789916 U CN205789916 U CN 205789916U
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- thimble
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Abstract
This utility model relates to a kind of anti-offset thimble system, belongs to technical field of semiconductor encapsulation.It includes thimble seat (1), at least one cross thimble (2) and thimble cap (3), described thimble seat (1) includes thimble pedestal (1.1), it is provided with at least one pilot hole (1.2) on described thimble pedestal (1.1), described cross thimble (2) includes thimble top, thimble boss and thimble bottom, the thimble bottom of described cross thimble (2) is plugged in pilot hole (1.2), and the upper corresponding thimble of described thimble cap (3) is provided with pin hole (5).A kind of anti-offset thimble system of this utility model, it can be good at controlling thimble and only moves along the vertical direction, makes thimble move up and down in the pilot hole of thimble seat all the time, will not inhale brilliant bad problem because the skew of the mobile generation thimble of cartridge chip film causes.
Description
Technical field
This utility model relates to a kind of anti-offset thimble system, belongs to technical field of semiconductor encapsulation.
Background technology
At present the board structure about thimble system there is a kind of design (seeing Fig. 1) using magnetic pin, at the bottom of pin
Having projection to prevent flying needle situation from occurring, this kind of structure can prevent thimble flying needle, but, if thimble is before next step displacement of film
Dropping back on Magnet base the most in time, film can drive the movement of thimble horizontal direction, makes thimble produce lateral shift, causes thimble
The corresponding position with chip offsets with impetus, easily makes to produce, during chip jack-up, the phenomenon of inclination, causes suction brilliant bad.
And this magnetic thimble mode there is also following shortcoming:
1, thimble backshank boss structure area is minimum, and Magnet is the least to the captivation of thimble；
2, the material cost of magnetic thimble seat is higher, and hardness is relatively low relative to rustless steel, fragile.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of anti-offset thimble system for above-mentioned prior art,
It can be good at controlling thimble and only moves along the vertical direction, makes thimble move up and down in the pilot hole of thimble seat all the time, no
Magnet base can be dropped back into because of thimble not in time, moved by blue film strips and make thimble produce skew；On the other hand technological parameter aspect is not
With change, do not increase and improve cost.
The technical scheme in the invention for solving the above technical problem is: a kind of anti-offset thimble system, and it includes top
Needle stand, at least one cross thimble and thimble cap, described thimble seat includes thimble pedestal, described thimble pedestal is provided with to
A few pilot hole, described cross thimble includes thimble top, thimble boss and thimble bottom, the top of described cross thimble
Pin bottom is plugged in pilot hole, and described thimble boss is movable between thimble seat and thimble cap, corresponding top on described thimble cap
Pin is provided with pin hole.
Described pilot hole diameter is slightly larger than the diameter of thimble bottom.
Described pilot hole is cone shaped countersink.
Described thimble upper length is more than thimble demoulding height.
Described thimble upper length is less than the distance between thimble seat and the thimble cap under thimble system initial state.
Described thimble lower length is more than thimble upper length.
Described thimble lower length is more than the distance between thimble seat and the thimble cap under thimble system initial state.
Described thimble cap diameter is more than thimble upper diameter, and described thimble cap diameter is less than thimble boss diameter.
Compared with prior art, the utility model has the advantage of:
1, this utility model can effectively control the side-play amount of thimble, it is to avoid chip is produced showing of inclination during thimble jack-up
As, effectively solve to inhale brilliant bad problem；
2, this utility model simple in construction, system and technique are constant, save the production cost of consumption product thimble.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing thimble system.
Fig. 2 is to push up the schematic diagram to peak on a kind of anti-offset thimble system thimble of this utility model.
Fig. 3 is the schematic diagram that a kind of anti-offset thimble system thimble of this utility model falls to minimum point.
Fig. 4 is the structural representation of thimble pedestal in Fig. 2.
Wherein:
Thimble seat 1
Thimble pedestal 1.1
Pilot hole 1.2
Cross thimble 2
Thimble cap 3
Film 4
Pin hole 5.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail.
As shown in Fig. 2 ~ 4, the one anti-offset thimble system in the present embodiment, it includes thimble seat 1, at least one cross
Type thimble 2 and thimble cap 3, described thimble seat 1 includes thimble pedestal 1.1, described thimble pedestal 1.1 is provided with at least one and leads
To hole 1.2, described cross thimble 2 includes thimble top, thimble boss and thimble bottom, the thimble of described cross thimble 2
Bottom is plugged in pilot hole 1.2, and described thimble boss is movable between thimble seat 1 and thimble cap 3, right on described thimble cap 3
Answering thimble to be provided with pin hole 5, the thimble top of described cross thimble 2 is through on the pin hole 5 jack-up film 4 arranged on thimble cap 3
Chip；
It is peak, now thimble when moving the chip on related cross thimble 2 upwards jack-up film 4 on described thimble seat 1
Jack-up is highly demoulding height, and thimble seat 1 moving related cross thimble 2 and moves down into when thimble seat 1 resets is minimum point, now
Thimble position is in initial position, described cross thimble 2 when moving up and down all process thimble bottoms all at thimble pedestal 1.1
Pilot hole 1.2 in；
Described pilot hole 1.2 diameter is slightly larger than the diameter of thimble bottom；
Described pilot hole 1.2 is cone shaped countersink, it is simple to install cross thimble 2；
Described thimble upper length is more than thimble demoulding height；
Described thimble upper length is less than the distance between thimble seat 1 and the thimble cap 3 under thimble system initial state；
Described thimble lower length is more than thimble upper length；
Described thimble lower length is more than the distance between thimble seat 1 and the thimble cap 3 under thimble system initial state；
On described thimble cap 3, pin hole 5 diameter is more than thimble upper diameter, and on described thimble cap 3, pin hole 5 diameter is less than thimble
Boss diameter.
During the work of described thimble system: thimble seat upwards jack-up thimble makes thimble expose thimble cap, and thimble cap is fixed all the time
Motionless, thimble jack-up highly reach demoulding condition stop jack-up operation, after on film, chip is drawn, thimble seat drops back into initial bit
Putting, ideally thimble also can drop back in pilot hole, but indivedual thimble can tunicle parcel.Caudacoria can translate a list
Position, during make thimble avoid detaching thimble seat due to the convex structure of thimble, and thimble end portion is guiding all the time
Being not susceptible to left and right skew in hole, be equivalent to blue film and doing movement relative to thimble, the friction between blue film and thimble finally makes
Thimble and membrance separation, the thimble after separation drops back into initial position due to the guide effect of pilot hole, it is achieved thimble resets.Weigh afterwards
Multiple above-mentioned action completes chip pick-up and thimble seat and thimble resets and operates.
In addition to the implementation, this utility model also includes other embodiments, all employing equivalents or equivalence
The technical scheme that substitute mode is formed, within all should falling into this utility model scope of the claims.
Claims (8)
1. an anti-offset thimble system, it is characterised in that: it includes thimble seat (1), at least one cross thimble (2) and top
Needle cap (3), described thimble seat (1) includes thimble pedestal (1.1), described thimble pedestal (1.1) is provided with at least one and guides
Hole (1.2), described cross thimble (2) includes thimble top, thimble boss and thimble bottom, described cross thimble (2)
Thimble bottom is plugged in pilot hole (1.2), and described thimble boss is movable between thimble seat (1) and thimble cap (3), described top
The upper corresponding thimble of needle cap (3) is provided with pin hole (5).
One the most according to claim 1 anti-offset thimble system, it is characterised in that: described pilot hole (1.2) diameter is slightly
Diameter more than thimble bottom.
One the most according to claim 1 anti-offset thimble system, it is characterised in that: described pilot hole (1.2) is taper
Counterbore.
One the most according to claim 1 anti-offset thimble system, it is characterised in that: described thimble upper length is more than top
Pin demoulding height.
One the most according to claim 1 anti-offset thimble system, it is characterised in that: described thimble upper length is less than top
The distance between thimble seat (1) and thimble cap (3) under needle system original state.
One the most according to claim 1 anti-offset thimble system, it is characterised in that: described thimble lower length is more than top
Pin upper length.
One the most according to claim 1 anti-offset thimble system, it is characterised in that: described thimble lower length is more than top
The distance between thimble seat (1) and thimble cap (3) under needle system original state.
One the most according to claim 1 anti-offset thimble system, it is characterised in that: the upper pin hole (5) of described thimble cap (3)
Diameter is more than thimble upper diameter, and upper pin hole (5) diameter of described thimble cap (3) is less than thimble boss diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620681395.0U CN205789916U (en) | 2016-07-01 | 2016-07-01 | A kind of anti-offset thimble system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620681395.0U CN205789916U (en) | 2016-07-01 | 2016-07-01 | A kind of anti-offset thimble system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205789916U true CN205789916U (en) | 2016-12-07 |
Family
ID=58125941
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620681395.0U Active CN205789916U (en) | 2016-07-01 | 2016-07-01 | A kind of anti-offset thimble system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205789916U (en) |
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2016
- 2016-07-01 CN CN201620681395.0U patent/CN205789916U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |