CN106356314A - SOT26 test clamp with adjustable test groove and operation method thereof - Google Patents
SOT26 test clamp with adjustable test groove and operation method thereof Download PDFInfo
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- CN106356314A CN106356314A CN201611030790.3A CN201611030790A CN106356314A CN 106356314 A CN106356314 A CN 106356314A CN 201611030790 A CN201611030790 A CN 201611030790A CN 106356314 A CN106356314 A CN 106356314A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L22/00—Testing or measuring during manufacture or treatment; Reliability measurements, i.e. testing of parts without further processing to modify the parts as such; Structural arrangements therefor
- H01L22/10—Measuring as part of the manufacturing process
- H01L22/14—Measuring as part of the manufacturing process for electrical parameters, e.g. resistance, deep-levels, CV, diffusions by electrical means
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
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Abstract
The invention discloses a SOT26 test clamp with an adjustable test groove and an operation method thereof and belongs to the technical field of chip test. The SOT26 test clamp with the adjustable test groove provided by the invention comprises a fixed clamp and a moveable clamp, wherein the fixed clamp and the moveable clamp are connected through mutually matched rotating devices; the width adjustment of a clamp rim between the fixed clamp and the moveable clamp can be realized through the rotation of the moveable clamp relative to the fixed clamp; the clamp rim of the test clamp can be adaptively adjusted according to the size of SOT26. The operation method for the test clamp provided by the invention comprises the steps of pressing in SOT26, testing and pushing out; a spring is utilized to control the opening and closing of the moveable clamp, so that the left and right shifting caused by the size of SOT26 can be made up and the yield of once test can be increased; a jacking rod is additionally arranged; under the synergic effect of the moveable clamp and the jacking rod, the purposes of accurately positioning SOT26 in a test process, preventing the material overlapping and increasing the test yield can be achieved; equivalently, the capacity is promoted, so that the effect of double benefit can be achieved.
Description
Technical field
The present invention relates to chip testing technology field, more particularly, to a kind of test groove adjustable sot26 test clip and its
Operational approach.
Background technology
At present, in semiconductor integrated circuit manufacturing process, need the finished chip after cutting encapsulation is carried out further
Test, test fixture more serves pivotal role.In chip testing process, specific practice is the suction nozzle by die selector
Chip is transferred in test clip, after being completed, chip is transferred to subsequent processing by the suction nozzle of die selector again.
Sot is the abbreviation of English small-outlinetransistor, refers to a kind of packing forms of transistor,
Sot26 is the abbreviation of sot23-6, and sot23-6 is one of sot23, and mantissa 6 represents 6 pins；Survey designed by original equipment
Examination folder, as shown in Fig. 2 the opening size of jaws (3) is fixing, and the length of sot26 is due to the limitation of manufacturing technology level
Property, lead to its length inconsistent, therefore the test clip of original equipment design is by the design of sot26 length full-size, thus make
Become the pin of sot26 product in contact test tablet about offset, thus causing loose contact, lead under a power of the test
Fall；And the pin of sot26 is to be symmetrical set, during test, how to ensure that pin contact with test piece in both sides is also technology people
Member needs the technical problem considering.
Through retrieval, Chinese invention patent application, publication number: cn105931979a, publication date: 2016.09.07, disclose
A kind of rotating down pressing cake core test fixture, including support, described support include base station with horizontal plane and vertical shape
Strut；The open column shape bracing frame that inwall carries spiral lamination is fixed with described support bar；Also include outer wall and carry spiral lamination
Lower pressure bar；The spiral lamination of the spiral lamination of support frame as described above inwall and described lower pressure bar outer wall is mutually matched；Described lower pressure bar bottom
End is provided with top testing needle, and the top end of described lower pressure bar is provided with handle；It is fixed with chip on told base station
Mounting table, the upper surface of described chip mounting table is provided with chip positioning bar, and chip mounting table is additionally provided with through hole, solid in through hole
Surely there is bottom testing needle.This invention is applied to the test of unpackaged chip, and chip can be carried out with positioning and quick test, and need not
Test pin is welded on chip, all efficient and convenient to chip installing/dismounting it is adaptable to large batch of test.But this invention Shen
The base station of horizontal plane please can not be sized, and can only test the chip of fixing specification, and, it is only applicable to unpackaged chip
Test, versatility is poor.
Content of the invention
1. invent technical problem to be solved
For present in prior art sot26 test when sot26 pin in contact test tablet about skew problem,
The invention provides a kind of test groove adjustable sot26 test clip and its operational approach.It can realize test clip jaws can
Size according to sot26 carries out adapt, reaches and improves the purpose testing average yield.
2. technical scheme
For reaching above-mentioned purpose, the technical scheme that the present invention provides is:
A kind of test groove adjustable sot26 test clip, including fixation clamp and activity folder；Described fixation clamp and activity folder are logical
Cross the rotary apparatuss cooperating to connect, and realize the width of jaws between the two by activity folder with respect to the rotation of fixation clamp
Adjust it is achieved that test clip jaws can carry out adapt according to the size of sot26, and then reach the test improving sot26
The purpose of average yield.
Further technical scheme, rotary apparatuss are fixation clamp, activity folder just to respective side on be respectively provided with and join
Close the convex semicolumn of setting, recessed semicolumn；Described activity folder hangs on the convex semicolumn of fixation clamp by recessed semicolumn, recessed semicircle
Post is rotated with convex semicolumn for axle, because the overall dimensions of sot26 are less, need not realize big width adjusting, as long as fixation clamp
Retain the width adjusting of the jaws required for narrow and small gap can achieve and activity folder between, therefore, recessed semicolumn is with convex half
Cylinder rotates for axle, that is, enable the fine adjustment of the width of jaws.
Further technical scheme, described fixation clamp is in fall " t " word shape；The middle part that described activity folder hangs over fixation clamp is convex
The side of platform, and leave " l " shape rotary gap and fixation clamp between, gap is in " l " shape it is achieved that recessed semicolumn is with convex semicolumn
Small angle rotation for axle.
Further technical scheme, the latter half of described activity folder, the bottom of recessed semicolumn is provided with horizontal direction
Spring cavity volume, the jaws width adjusting spring of built-in horizontal direction.After the completion of realizing sot26 test, the reset of jaws width,
And it is capable of the clamping force to sot26 for jaws during test, to ensure the stability of position during sot26 test.
Further technical scheme, inside boss in the middle part of fixation clamp, the push rod cavity volume of setting vertical direction, interior from the bottom to top
Put push rod spring and the push rod of interconnection；Push rod is in "convex" shaped, and top passes the upper surface of fixation clamp, in the middle of jaws
Position, bottom be connect push rod spring tip-lever support, will not be stuck in test clip with after the completion of guaranteeing sot26 product test,
And then decrease the stack warning probability of bracket panel.
Further technical scheme, the fixing gripping finger of upper surface setting of fixation clamp, the upper surface setting of described activity folder is lived
Dynamic gripping finger, fixing gripping finger groove and activity gripping finger groove are oppositely arranged, and can effectively avoid the sot product packaged by some special leads frames
The metal that the two ends of no pin are exposed, prevents product and periphery short circuit, the middle jaws accommodating sot26 packaging body, so that sot26 is pressed
After entering jaws, groove and jaws synergism, prevent left during sot26 test from offseting and can guarantee that sot26 both sides pin and survey
Test piece parallel, conveniently test and improve the precision of test.
Further technical scheme, the fixing gripping finger side relative with activity gripping finger be top opens outward two kinds are different
The inclined-plane of angle, lower end angle of inclination consistent with the shape of sot26 packaging body it is ensured that sot26 press-in jaws when buffer-type pressure
Enter, it is to avoid sot26 packaging body mutually damages with really up to the mark contact of jaws plane, and further ensures stablizing after press-in
Property.
Further technical scheme, described convex semicolumn is installed with hollow, the fixed pin holes of horizontal direction；Steady pin is in
The horizontal insertion fixed pin holes of " t " font, top is fixedly connected with steady pin cap, connects with packing ring close-fitting after tail end passes fixed pin holes
Connect, to ensure the stability parallel relation of fixing gripping finger groove and activity gripping finger groove；Rotating to be of described recessed semicolumn turns 0 clockwise
～4 °, according to the size adjust automatically anglec of rotation of sot26, to adapt to various sizes of sot26 product.
Further technical scheme, the tail end of described steady pin is also installed with fixed jack, and fixed jack is inserted into pin, and
It is stained with glue, pin is fixed.Loosen the dislocation causing fixing gripping finger groove and activity gripping finger groove to avoid packing ring close-fitting to connect.
A kind of operational approach of test groove adjustable sot26 test clip, step is:
Step one, the press-in of sot26: the suction nozzle of die selector is pressed into jaws by after the packaging body absorption in the middle part of sot26
Interior, in process of press in, activity folder turns clockwise with respect to fixation clamp, and the width of jaws is gradually increased, jaws width adjusting bullet
Spring is gradually compressed, until sot26 packaging body is completely forced in the jaws of test clip, die selector remains pressed into sot26
Formula is fixed；
Step 2, the test of sot26: each pin contact test tablet of sot26 is tested one by one；
Step 3, the ejection of sot26: after the completion of test, separator suction nozzle rises, and the sot26 product on suction nozzle is in vacuum
And under the upper top effect of push rod, sot26 is ejected, jaws width adjusting spring return function, the width of jaws recovers original width；Core
Sot26 is transferred to subsequent processing by piece separator；
Step 4, repeat step one to three, test other sot26.
Using monolateral activity folder action, using opening and the closure of spring control activity folder, to make up sot26 size
The left and right causing offsets thus improving the yield of disposable test, has installed push rod simultaneously additional, to prevent product card in jaws, has reached
Purpose to anti-stack automatically；Activity folder and the synergism of push rod, serve and during test, sot26 duplicate protection and raising are surveyed
The purpose of examination yield, is equivalent to and improves production capacity, essentially eliminate the hidden danger of stack simultaneously, has reached double effects obtaining at one stroke.
3. beneficial effect
The technical scheme being provided using the present invention, compared with prior art, is had the advantages that
(1) a kind of test groove adjustable sot26 test clip of the present invention, presss from both sides the rotation with respect to fixation clamp by activity
The width adjusting realizing jaws between the two, it is achieved that test clip jaws can carry out adapt according to the size of sot26, is entered
And reach the purpose of the average yield of test improving sot26；
(2) a kind of test groove adjustable sot26 test clip of the present invention, due to less (the individual position of the overall dimensions of sot26
Several millimeters level), big width adjusting need not be realized, as long as retaining narrow and small gap between fixation clamp and activity folder can achieve institute
The width adjusting of the jaws needing, therefore, recessed semicolumn is rotated with convex semicolumn for axle, that is, enable the fine setting of the width of jaws
Section；
(3) a kind of test groove adjustable sot26 test clip of the present invention, between activity folder and fixation clamp, gap is in " l "
Shape is it is achieved that the small angle rotation with convex semicolumn as axle for the recessed semicolumn；
(4) a kind of test groove adjustable sot26 test clip of the present invention, the setting of jaws width adjusting spring, realize
The reset of jaws width after the completion of sot26 test, and it is capable of the clamping force to sot26 for jaws during test, to ensure
The stability of position during sot26 test.；
(5) a kind of test groove adjustable sot26 test clip of the present invention, the built-in push rod of fixation clamp is it is ensured that sot26
Will not be stuck in test clip after the completion of product test, and then decrease the stack warning probability of bracket panel；
(6) a kind of test groove adjustable sot26 test clip of the present invention, after sot26 press-in jaws, groove and jaws are assisted
Same-action, prevents from offseting about during sot26 test, to improve the precision of test；Groove can also be some special for avoiding
The no pin two ends of the sot26 product packaged by lead frame the metal dots exposed to prevent the short circuit of product and test clip；
(7) a kind of test groove adjustable sot26 test clip of the present invention, the inclination of fixing gripping finger and activity gripping finger side
Angle consistent with the shape of sot26 packaging body it is ensured that sot26 press-in jaws when buffer-type press-in, it is to avoid sot26 packaging body and
The contact really up to the mark of jaws plane and mutually damage, and further ensure the stability after press-in；
(8) a kind of test groove adjustable sot26 test clip of the present invention, the setting of steady pin, ensure that fixation clamp
Refer to the stability parallel relation of groove and activity gripping finger groove；Rotating to be of recessed semicolumn turns 0～4 ° clockwise, big according to sot26
The little adjustment anglec of rotation；To adapt to the sot26 of different size；
(9) being equipped with of a kind of test groove adjustable sot26 test clip of the present invention, fixed jack and pin, keeps away
Exempt from packing ring close-fitting and connect the loosening dislocation causing fixing gripping finger groove and activity gripping finger groove；
(10) operational approach of the adjustable sot26 test clip of a kind of test groove of the present invention, dynamic using monolateral activity folder
Make, using opening and the closure of spring control activity folder, to make up the left and right skew that sot26 size causes, thus improving
The yield of disposable test, has installed push rod additional simultaneously, to prevent product card in jaws, reaches the purpose of anti-stack automatically；Live
Dynamic folder and the synergism of push rod, serve the purpose to sot26 duplicate protection and raising test yield during test, are equivalent to and carry
High production capacity, essentially eliminates the hidden danger of stack simultaneously, has reached double at one stroke effects, through statistics, at least can improve
10% production capacity, for hundreds of millions of batch production of sot26, is that one kind significantly improves.
Brief description
Fig. 1 is a kind of test groove adjustable sot26 test clip structural representation of the present invention；
Fig. 2 is the structural representation of the sot26 test clip of prior art；
Fig. 3 is the top view of sot26 product；
Fig. 4 is the side view of sot26 product；
Fig. 5 is the fixation clamp profile in the present invention；
Fig. 6 is the activity folder profile in the present invention；
Fig. 7 is the activity folder axonometric chart in the present invention；
Fig. 8 is structural representation after the steady pin amplification in the present invention；
Fig. 9 is structural representation after the packing ring amplification in the present invention；
Figure 10 is the push rod structure schematic diagram in the present invention.
Label declaration in schematic diagram: 1, fixation clamp；2nd, activity folder；3rd, jaws；4th, push rod；5th, steady pin；7th, packing ring；8、
sot26；9th, rotary gap；11st, fixing gripping finger；12nd, convex semicolumn；14th, fixing gripping finger groove；15th, push rod cavity volume；16th, steady pin
Hole；21st, activity gripping finger；22nd, recessed semicolumn；23rd, jaws width adjusting spring；24th, activity gripping finger groove；25th, spring cavity volume；41、
Tip-lever support；51st, fixed jack；52nd, steady pin cap；81st, sot26 middle pin；82nd, sot26 packaging body.
Specific embodiment
For further appreciating that present disclosure, in conjunction with accompanying drawing, the present invention is described in detail.
The shape of sot26 product is as shown in Figure 3,4.
Embodiment 1
The test groove adjustable sot26 test clip of the present embodiment, including fixation clamp 1 and activity folder 2；Described fixation clamp 1
The rotary apparatuss passing through to cooperate with activity folder 2 connect, and as shown in Fig. 5,7, rotary apparatuss are fixation clamp 1, activity folder 2 is just right
Respective side on be respectively provided with and be equipped with convex semicolumn 12, recessed semicolumn 22；Described activity folder 2 passes through recessed semicolumn
22 hang on the convex semicolumn 12 of fixation clamp 1, and recessed semicolumn 22 is rotated with convex semicolumn 12 for axle.Achieving test clip jaws can
Size according to sot26 carries out adapt, and then reaches the purpose of the average yield of test improving sot26.Due to sot26
Overall dimensions less, big width adjusting need not be realized, as long as retaining narrow and small gap and be between fixation clamp 1 and activity folder 2
The width adjusting of the jaws 3 required for can achieve, therefore, recessed semicolumn 22 is rotated with convex semicolumn 12 for axle, that is, enable to press from both sides
The fine adjustment of the width of mouth 3.
Embodiment 2
The test groove adjustable sot26 test clip of the present embodiment, basic structure is with embodiment 1, difference and improvements
It is: as shown in figure 1, described fixation clamp 1 is in fall " t " word shape；Described activity folder 2 hangs over the one of the middle part boss of fixation clamp 1
Side, and leave " l " shape rotary gap 9 and fixation clamp 1 between, gap is in " l " shape it is achieved that recessed semicolumn 22 is with convex semicolumn 12
Small angle rotation for axle.As shown in fig. 6, the latter half of described activity folder 2, the bottom of recessed semicolumn 22 is provided with level side
To spring cavity volume 25, the jaws width adjusting spring 23 of built-in horizontal direction.After the completion of realizing sot26 test, jaws 3 is wide
The reset of degree, and it is capable of the clamping force to sot26 for the jaws 3 during test, to ensure the stability of position during sot26 test.
Embodiment 3
The test groove adjustable sot26 test clip of the present embodiment, basic structure is with embodiment 2, difference and improvements
Be: as shown in figure 5, inside the boss of fixation clamp 1 middle part setting vertical direction push rod cavity volume 15, built-in be from the bottom to top mutually connected
The push rod spring connecing and push rod 4；As shown in Figure 10, push rod 4 is in "convex" shaped, and top passes the upper surface of fixation clamp 1, near folder
Positions in the middle of mouth 3, bottom is the tip-lever support 41 connecting push rod spring, will not be stuck in after the completion of guaranteeing sot26 product test
In test clip, and then decrease the stack warning probability of bracket panel.The fixing gripping finger 11 of upper surface setting of fixation clamp 1, described activity
The upper surface setting activity gripping finger 21 of folder 2, fixing gripping finger groove 14 and activity gripping finger groove 24 are oppositely arranged, and can effectively avoid some spies
The metal that the two ends of different sot product no pin packaged by lead frame are exposed, prevents product and periphery short circuit, middle receiving
The jaws 3 of sot26 packaging body 82, after making sot26 be pressed into jaws, groove and jaws synergism, prevent about during sot26 test
Skew, conveniently tests and improves the precision of test.The size of " l " shape rotary gap is 0.33mm.
The operational approach of the test groove adjustable sot26 test clip of the present embodiment, application specification is 3.0*1.6mm's
Sot26, ± 0.02～± 0.2, pin widths are 0.4mm to tolerance, and step is:
Step one, the press-in of sot26: press-in after the packaging body 82 in the middle part of sot26 is adsorbed by the suction nozzle of die selector is pressed from both sides
In mouth 3, in process of press in, activity folder 2 turns clockwise with respect to fixation clamp 1, and the anglec of rotation is 1.5～3.0 °, the width of jaws 3
Degree is gradually increased, and jaws width adjusting spring 23 is gradually compressed, until sot26 packaging body 82 is completely forced into the jaws of test clip
In 3, die selector remains pressed into formula to sot26 and fixes；
Step 2, the test of sot26: each pin contact test tablet of sot26 is tested one by one；
Step 3, the ejection of sot26: after the completion of test, separator suction nozzle rises, and product is on the upper top of vacuum and push rod 4
Under effect, product is ejected, jaws width adjusting spring 23 return, the width of jaws 3 recovers original width；Die selector will
Sot26 is transferred to subsequent processing；
Step 4, repeat step one to three, test other sot26.
The test groove adjustable sot26 test clip of the present embodiment, using monolateral activity folder action, is controlled using spring and lives
The opening of dynamic folder and closure, the left and right being caused with making up sot26 size offsets thus improving the yield of disposable test, with
When installed push rod additional, to prevent product card in jaws, reach the purpose of anti-stack automatically；Activity folder and the collaborative work of push rod
With serving the purpose to sot26 duplicate protection and raising test yield during test, being equivalent to and improve production capacity, substantially simultaneously
Eliminate the hidden danger of stack, reach double effects obtaining at one stroke.
Through statistics, the test groove adjustable sot26 test clip of the present embodiment, test yield improves 13%, is equivalent to
13% production capacity at least can be improved.
Example: 2016/4/21 statistics:
Embodiment 4
The test groove adjustable sot26 test clip of the present embodiment, basic structure is with embodiment 3, difference and improvements
It is: fixing gripping finger 11 side relative with activity gripping finger 21 is the double inclined plane of top opens outward, lower inclined plane is 7 degree, upper oblique
Face is 30 degree；Angle of inclination consistent with the shape of sot26 packaging body 82 it is ensured that sot26 press-in jaws when buffer-type press-in, keep away
Exempt from really up to the mark contact of sot26 packaging body and jaws plane and mutually damage, and further ensure the stability after press-in.Described
Convex semicolumn 12 is installed with hollow, the fixed pin holes 16 of horizontal direction, diameter 1mm；As shown in Figure 8,9, steady pin 5 is in " t " word
Shape horizontal insertion fixed pin holes 16, top is fixedly connected with steady pin cap 52, connects with packing ring 7 close-fitting after tail end passes fixed pin holes 16
Connect, to ensure the stability parallel relation of fixing gripping finger groove 14 and activity gripping finger groove 24.The tail end of described steady pin 5 is also installed with solid
Determine jack 51, fixed jack 51 is inserted into pin, then is clung with glue, loosened with avoiding packing ring 7 close-fitting to connect and cause fixation clamp
Refer to the dislocation of groove 14 and activity gripping finger groove 24.The size of " l " shape rotary gap is 0.23mm.
The operational approach of the test groove adjustable sot26 test clip of the present embodiment, application specification is 3.0*1.6mm's
Sot26, ± 0.01～± 0.1, step is tolerance:
Step one, the press-in of sot26: press-in after the sot26 packaging body 82 of sot26 is adsorbed by the suction nozzle of die selector is surveyed
In the jaws 3 of examination folder, in process of press in, activity folder 2 turns clockwise with respect to fixation clamp 1, and the anglec of rotation is 0～1.5 °, folder
The width of mouth 3 is gradually increased, and jaws width adjusting spring 23 is gradually compressed, until sot26 packaging body 82 is completely forced into test
In the jaws 3 of folder, die selector remains pressed into formula to sot26 and fixes；
Step 2, the test of sot26: each pin contact test tablet of sot26 is tested one by one；
Step 3, the ejection of sot26: after the completion of test, separator suction nozzle rises, and the sot26 product on suction nozzle is in vacuum
And under the upper top effect of push rod 4, sot26 is ejected, jaws width adjusting spring 23 return, the width of jaws 3 recovers initially wide
Degree；Sot26 is transferred to subsequent processing by die selector；
Step 4, repeat step one to three, test other sot26.
Through statistics, the test groove adjustable sot26 test clip of the present embodiment, test yield improves 15%, for
For hundreds of millions of batch production of sot26, it is that one kind significantly improves.
Below schematically the present invention and embodiments thereof are described, this description does not have restricted, institute in accompanying drawing
Show is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if the common skill of this area
Art personnel enlightened by it, in the case of without departing from the invention objective, designs and this technical scheme without creative
Similar frame mode and embodiment, all should belong to protection scope of the present invention.
Claims (10)
1. a kind of test groove adjustable sot26 test clip, including fixation clamp (1) it is characterised in that also including activity folder (2)；
Described fixation clamp (1) and activity folder (2) are connected by the rotary apparatuss cooperating, and by activity folder (2) with respect to fixation
The width adjusting of jaws (3) between the two is realized in the rotation of folder (1).
2. a kind of test groove adjustable sot26 test clip according to claim 1 it is characterised in that: described rotating dress
Be set to fixation clamp (1), activity folder (2) just to respective side on be respectively provided with and be equipped with convex semicolumn (12), recessed half
Cylinder (22)；Described activity folder (2) hangs on the convex semicolumn (12) of fixation clamp (1) by recessed semicolumn (22), recessed semicolumn
(22) rotated with convex semicolumn (12) for axle.
3. a kind of test groove adjustable sot26 test clip according to claim 2 it is characterised in that: described fixation clamp
(1) it is in fall " t " word shape；Described activity folder (2) hangs over the side of the middle part boss of fixation clamp (1), and and fixation clamp (1) between
Leave " l " shape rotary gap (9).
4. a kind of test groove adjustable sot26 test clip according to claim 3 it is characterised in that: described activity folder
(2) the latter half, the bottom of recessed semicolumn (22) is provided with the spring cavity volume (25) of horizontal direction, the folder of built-in horizontal direction
Mouth width adjusting spring (23).
5. a kind of test groove adjustable sot26 test clip according to claim 3 it is characterised in that: described fixation clamp
(1) inside middle arranges the push rod cavity volume (15) of vertical direction, the push rod of push rod cavity volume (15) built-in interconnection from the bottom to top
Spring and push rod (4)；Push rod (4) is in "convex" shaped, and top passes the upper surface of fixation clamp (1), the position in the middle of jaws (3)
Put, bottom is the tip-lever support (41) connecting push rod spring.
6. a kind of test groove adjustable sot26 test clip according to claim 5 it is characterised in that: described fixation clamp
(1) the fixing gripping finger (11) of upper surface setting, upper surface setting activity gripping finger (21) of described activity folder (2), fixing gripping finger groove
(14) it is oppositely arranged with activity gripping finger groove (24), form the middle jaws (3) accommodating sot26 packaging body (82).
7. a kind of test groove adjustable sot26 test clip according to claim 6 it is characterised in that: fixing gripping finger
(11) side relative with activity gripping finger (21) is the inclined-plane of top opens outward, angle of inclination and sot26 packaging body (82)
Shape is consistent.
8. a kind of test groove adjustable sot26 test clip according to claim 6 it is characterised in that: described convex semicircle
For the fixed pin holes (16) of horizontal direction in the middle of post (12)；Steady pin (5) is in " t " font horizontal insertion fixed pin holes (16), top
It is fixedly connected with steady pin cap (52), tail end passes fixed pin holes (16) and connects with packing ring (7) close-fitting afterwards, described recessed semicolumn
(22) rotate to be turns 0～4 ° clockwise.
9. a kind of test groove adjustable sot26 test clip according to claim 7 it is characterised in that: described steady pin
(5) tail end is also installed with fixed jack (51), and fixed jack (51) is inserted into pin, then pin is fixed.
10. a kind of test groove adjustable sot26 test clip operational approach it is characterised in that: step is:
Step one, the press-in of sot26: press-in after packaging body (82) absorption in the middle part of sot26 (8) is pressed from both sides by the suction nozzle of die selector
In mouth (3), in process of press in, activity folder (2) turns clockwise with respect to fixation clamp (1), and the width of jaws (3) is gradually increased,
Jaws width adjusting spring (23) is gradually compressed, until sot26 packaging body (82) is completely forced in the jaws (3) of test clip,
Die selector remains pressed into formula to sot26 and fixes；
Step 2, the test of sot26: each pin contact test tablet of sot26 (8) is tested one by one；
Step 3, the ejection of sot26: after the completion of test, separator suction nozzle rises, sot26 (8) product on suction nozzle in vacuum and
Under the upper top effect of push rod (4), sot26 (8) is ejected, jaws width adjusting spring (23) return, the width of jaws (3) recovers
Original width；Sot26 is transferred to subsequent processing by die selector；
Step 4, repeat step one to three, test other sot26 (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611030790.3A CN106356314B (en) | 2016-11-16 | 2016-11-16 | SOT26 test clamp with adjustable test groove and operation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611030790.3A CN106356314B (en) | 2016-11-16 | 2016-11-16 | SOT26 test clamp with adjustable test groove and operation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607859A (en) * | 2017-10-24 | 2018-01-19 | 长电科技（滁州）有限公司 | A kind of chip testing and sealing device and its technique |
Citations (4)
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| US5525812A (en) * | 1993-12-07 | 1996-06-11 | The United States Of America As Represented By The United States Department Of Energy | Retractable pin dual in-line package test clip |
| US20080309348A1 (en) * | 2007-06-18 | 2008-12-18 | David Eldridge | Integrated chip clamp adjustment assembly and method |
| CN105931979A (en) * | 2016-07-11 | 2016-09-07 | 无锡宏纳科技有限公司 | Rotary press-type chip testing fixture |
| CN206194699U (en) * | 2016-11-16 | 2017-05-24 | 长电科技（滁州）有限公司 | SOT26 tests and presss from both sides with adjustable test recess |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5525812A (en) * | 1993-12-07 | 1996-06-11 | The United States Of America As Represented By The United States Department Of Energy | Retractable pin dual in-line package test clip |
| US20080309348A1 (en) * | 2007-06-18 | 2008-12-18 | David Eldridge | Integrated chip clamp adjustment assembly and method |
| CN105931979A (en) * | 2016-07-11 | 2016-09-07 | 无锡宏纳科技有限公司 | Rotary press-type chip testing fixture |
| CN206194699U (en) * | 2016-11-16 | 2017-05-24 | 长电科技（滁州）有限公司 | SOT26 tests and presss from both sides with adjustable test recess |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607859A (en) * | 2017-10-24 | 2018-01-19 | 长电科技（滁州）有限公司 | A kind of chip testing and sealing device and its technique |
| CN107607859B (en) * | 2017-10-24 | 2023-04-11 | 长电科技（滁州）有限公司 | Chip testing and sealing device and process thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106356314B (en) | 2023-06-23 |
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