Source: https://patents.google.com/patent/TWI541515B/en
Timestamp: 2019-11-12 07:31:51
Document Index: 419809119

Matched Legal Cases: ['arts\n85', 'arts\n110', 'art\n190', 'art\n220', 'arts\n110', 'art\n190']

TWI541515B - A positioning member and the probe card probe card probe head - Google Patents
A positioning member and the probe card probe card probe head Download PDF
TWI541515B
TWI541515B TW103122324A TW103122324A TWI541515B TW I541515 B TWI541515 B TW I541515B TW 103122324 A TW103122324 A TW 103122324A TW 103122324 A TW103122324 A TW 103122324A TW I541515 B TWI541515 B TW I541515B
TW103122324A
TW201600863A (en
Tzu Yang Chen
Shang Jung Hsieh
Chung Tse Lee
Tien Chia Li
Chia Yuan Kuo
2014-06-27 Application filed by Mpi Corp filed Critical Mpi Corp
2014-06-27 Priority to TW103122324A priority Critical patent/TWI541515B/en
2016-01-01 Publication of TW201600863A publication Critical patent/TW201600863A/en
2016-07-11 Publication of TWI541515B publication Critical patent/TWI541515B/en
Probe card positioning member and probe card probe head
The present invention relates to a locating member and a probe head, and more particularly to a locating member for a probe card and a probe head for a probe card.
Semiconductor integrated circuit chips are typically fabricated using a probe card for electrical testing. The probe card comprises a printed circuit board, a space conversion plate and a probe head, and the probe head comprises at least an upper guide plate, a lower guide plate and a plurality of probes. The upper and lower guides of the probe head typically have a plurality of through holes, and each consistent hole allows only a single probe to pass through. Therefore, when the pitch of the contact to be tested of the wafer becomes small, the test pitch of the corresponding probe head must also be correspondingly small to conform to the fine pitch.
As shown in FIG. 1, a probe head 80 generally used for testing a semiconductor wafer includes an upper guide 81, a lower guide 82, and a plurality of probes 90, as shown in FIG. 92 is generally circular in shape, and the section of the body 94 may be elliptical or square; in order to facilitate assembly of the components of the probe head 80, the head 92 of each probe 90 is usually first positioned on a positioning member 84. The positioning member 84 has a plurality of openings 85 extending through the positioning member 84. The shape of the opening 85 is formed by a circle and an ellipse of. The circular portion of the opening 85 is similar to the cross-sectional shape of the head portion 92 of the probe 90. The head portion 92 of each probe 90 is disposed through the opening 85 of the positioning member 84 so that the opening 85 can restrain the probe 90 and be repositioned. A through hole 86 is formed in the upper upper surface of the upper guide plate 81 to extend the body portion 94 of each probe 90 to the lower guide plate 82.
When the probe head 80 is assembled, the positioning member 84 is first disposed on the lower guide plate 82, and then the probes 90 are passed through the openings 85 of the positioning member 84, and each of the probes 90 has an elliptical cross-sectional shape. The body portion 94 also passes through the elliptical portion of each of the openings 85 to prevent structural damage of the probe 90 due to interference with the wall surfaces of the openings 85. However, it has been found after actual use that the opening 85 does not effectively position the head 92 of the probe 90 because the head 92 of the probe 90 moves from the circular portion of the opening 85 to the side as long as it is slightly stressed. The elliptical part. As a result, because the opening 85 is too large, all the probes 90 will be shaken or misaligned, so that the heads 92 of all the probes 90 cannot be uniformly aligned and pass through the through holes 86 above the upper guide 81, so that the probes 90 positioning is not good, assembly difficulty is improved and product yield is reduced.
On the other hand, it can be seen from Fig. 3 that the enlarged opening 85 of the area shortens the distance D10 between the openings 85. In the probe head 80 which adopts the fine pitch as shown in FIG. 1 without increasing the pitch, if the probe 90 of a larger needle diameter is to be used, the distance D10 between the openings 85 is further shortened, resulting in the positioning member 84 being The probability of rupture is greatly increased, which further makes the assembly difficulty further and the product yield is further reduced. Therefore, how to effectively solve the above shortcomings is an urgent need for improvement in the relevant fields.
The invention relates to a positioning member of a probe card for providing a probe card assembly for testing a test object conforming to fine pitch contacts.
The invention relates to a probe head of a probe card, wherein the positioning member used by the probe head can be used to provide a probe card assembly for testing the test object conforming to the fine pitch contact.
The present invention provides a positioning member for a probe card having a main opening, a first sub-opening, a second sub-opening, at least one positioning portion, and at least one elastic portion, wherein the first sub-opening and the second sub-opening are arranged The main opening is connected to the main opening, and at least one positioning portion is complementary to the at least one elastic portion. The at least one elastic portion is located between the first sub-opening and the second sub-opening, and the at least one positioning portion has a rigidity greater than the at least one elastic portion.
The invention provides a probe head of a probe card, which comprises an upper guide plate, a lower guide plate, a aforementioned positioning member and a plurality of probes. The upper guide plate has a plurality of upper through holes. The lower guide plate is located at one side of the upper guide plate and has a plurality of lower through holes. The positioning member is located between the upper guide plate and the lower guide plate and has a plurality of main openings. Each of the probes is positioned between each of the upper through holes of the upper guide and each of the lower through holes of the lower guide and passes through the main opening of the positioning member.
Based on the above, the positioning member of the present invention can provide a good positioning effect of the probe, and is not easy to damage the probe, and the spacing between the opening and the opening of the positioning member is not easily collapsed. Thereby, the assembly difficulty of the probe head of the probe card is reduced and the product yield of the probe head of the probe card is improved.
In order to make the above features and advantages of the present invention more apparent, the following is a special The embodiments are described in detail below in conjunction with the drawings.
80‧‧‧ probe head
81‧‧‧Upper guide
82‧‧‧ lower guide
84‧‧‧ positioning parts
85‧‧‧ openings
86‧‧‧Upper through hole
90, 90B, 90C‧‧ ‧ probe
92‧‧‧ head
92B, 92C‧‧‧ stop
94‧‧‧ Body
20‧‧‧Probe head
21‧‧‧Upper guide
22‧‧‧ lower guide
21a‧‧‧through hole
22a‧‧‧through through hole
100, 100A, 100B, 200A~200G, 300A, 300C, 400‧‧‧ positioning parts
110, 210A, 210B, 210F, 210G, 310A, 310C, 410‧‧‧ main opening
120, 220A~220F, 320A‧‧‧ first opening
130, 230A~230G, 330A‧‧‧ second secondary opening
140, 240A~240G‧‧‧ third sub-opening
150, 250A~250E, 250G‧‧‧ fourth sub-opening
160, 264A, 460‧‧‧ first positioning department
170, 264B, 470‧‧‧ Second Positioning Department
180, 260A, 262A, 480‧‧‧ first elastic part
190, 260B, 262B, 490‧‧‧ second elastic part
220F1, 220F2, 240F1, 240F2‧‧‧ straight line
160A, 264A1‧‧‧ first positioning edge
170A, 264B1‧‧‧Second positioning edge
180A, 262A1‧‧‧ first elastic edge
190A, 262B1‧‧‧ second elastic edge
360A, 360C‧‧‧ Positioning Department
380A, 380C‧‧‧Flexible Department
360A1‧‧‧ positioning edge
380A1‧‧‧Flexible edge
C10, C20‧‧‧ Geometric Center
L10, L12‧‧‧ Straight line
L20‧‧ symmetry line
D10, D22, D24, D26, D28, D26B, D28B‧‧‧ distance
Figure 1 is a schematic illustration of a conventional probe head.
2 is a perspective view of a conventional probe.
Figure 3 is a partial top plan view of a conventional positioning member.
4A is a partial perspective view of a positioning member of a probe card according to an embodiment of the present invention.
4B is a schematic view of another state of the positioning member of FIG. 4A.
5A and 5B are partial top views of the positioning member of the probe card of the other two embodiments of the present invention.
6 to 12 are partial top views of the positioning member of the probe card of the other seven embodiments of the present invention.
Figure 13 is a perspective view of a probe head of a probe card in accordance with an embodiment of the present invention.
14A and 14B are partial top views of the positioning member of the probe card of the other two embodiments of the present invention.
Figure 15 is a schematic illustration of a probe suitable for use with a locator of a probe card in accordance with an embodiment of the present invention.
Figure 16 is a partial top plan view of a positioning member of a probe card in accordance with another embodiment of the present invention.
Figure 17 is a schematic illustration of another probe suitable for use with a locator of a probe card in accordance with an embodiment of the present invention.
Referring to FIG. 4A, the positioning member 100 of the probe card of the embodiment has a main opening 110, a first sub-opening 120, a second sub-opening 130, a third sub-opening 140, and a fourth sub-opening 150. The first positioning portion 160 , the second positioning portion 170 , the first elastic portion 180 and the second elastic portion 190 . The first sub-opening 120, the second sub-opening 130, the third sub-opening 140, and the fourth sub-opening 150 are sequentially arranged around the main opening 110, and the first sub-opening 120, the second sub-opening 130, and the third sub-opening Both the 140 and the fourth sub-opening 150 are in communication with the main opening 110. Taking the first sub-opening 120 in communication with the main opening 110 as an example, "communication" as used herein means that the first sub-opening 120 directly contacts the main opening 110 without any other barrier therebetween. It should be noted that the positioning member has a plurality of main openings and a plurality of sub-openings. In this embodiment or other embodiments, only one of the main openings and the first sub-opening, the second sub-opening, the third sub-opening and the fourth sub-opening communicating with the main opening; or only one of the main openings and The embodiment of the first sub-opening and the second sub-opening that communicate with the main opening will be described.
The first elastic portion 180 is located between the first sub-opening 120 and the second sub-opening 130. That is, the three sides of the first elastic portion 180 are the main opening 110, the first sub-opening 120 and the second sub-opening 130, respectively, and the other side of the first elastic portion 180 is connected to other portions of the positioning member 100. The first positioning portion 160 is located between the second sub-opening 130 and the third sub-opening 140. That is, the three sides of the first positioning portion 160 are the main opening 110, the second sub-opening 130 and the third sub-opening 140, respectively, and the other side of the first positioning portion 160 is connected to other portions of the positioning member 100. The second elastic portion 190 is located between the third sub-opening 140 and the fourth sub-opening 150. The second elastic part The three sides of the 190 are the main opening 110, the third sub-opening 140 and the fourth sub-opening 150, respectively, and the other side of the second elastic portion 190 is connected to other portions of the positioning member 100. The second positioning portion 170 is located between the first sub-opening 120 and the fourth sub-opening 150. That is, the three sides of the second positioning portion 170 are the main opening 110, the first sub-opening 120 and the fourth sub-opening 150, respectively, and the other side of the second positioning portion 170 is connected to other portions of the positioning member 100. In this embodiment, the first positioning portion 160 and the second positioning portion 170 are disposed opposite to each other, and the first elastic portion 180 and the second elastic portion 190 are disposed opposite to each other.
The first positioning portion 160, the second positioning portion 170, the first elastic portion 180, and the second elastic portion 190 each include a portion of the periphery of the main opening 110. The first positioning portion 160, the second positioning portion 170, the first elastic portion 180 and the second elastic portion 190 are also complementary. The "complementary" as used herein refers to the first positioning portion 160, the second positioning portion 170, and the first The elastic portion 180 and the second elastic portion 190 together constitute the entire circumference of the main opening 110. In this embodiment, the first positioning portion 160, the second positioning portion 170, the first elastic portion 180 and the second elastic portion 190 together constitute the entire circumference of the main opening 110 except for the first to fourth sub-openings. Outside the 120-150 connected part.
In the positioning member 100 of the probe card of the present embodiment, the rigidity of the first positioning portion 160 and the rigidity of the second positioning portion 170 are greater than the rigidity of the first elastic portion 180 and the rigidity of the second elastic portion 190. Referring to FIG. 2, FIG. 4A and FIG. 4B, when the body 94 having the elliptical cross section of the probe 90 of FIG. 2 passes through the main opening 110, the first elastic portion 180 and the second elastic portion 190 are less rigid. If the force is bent as shown in FIG. 4B, excessive force is generated between the positioning member 100 and the body portion 94 of the probe 90, resulting in damage of the positioning member 100 or the probe 90. When the probe 90 as shown in Figure 2 After the body 94 completely passes through the main opening 110, the head 92 of the probe 90 does not press the first elastic portion 180 and the second elastic portion 190, and the first elastic portion 180 and the second elastic portion 190 will return to the original shape as shown in the figure. 4A. When the first elastic portion 180 and the second elastic portion 190 are restored to the original shape as shown in FIG. 4A, the head portion 92 of the probe 90 is located at the main opening 110 at this time. In addition, the first positioning portion 160 of the present embodiment has a first positioning edge 160A around the main opening 110, and the second positioning portion 170 has a second positioning edge 170A around the main opening 110. The first elastic portion 180 is The main opening 110 has a first elastic edge 180A around the main opening 110, and the second elastic portion 190 has a second elastic edge 190A around the main opening 110. The first positioning edge 160A, the second positioning edge 170A, the first elastic edge 180A and the second elastic edge 190A are used to support the head 92 of the probe 90. In other words, the first positioning edge 160A, the second positioning edge 170A, the first elastic edge 180A and the second elastic edge 190A together constitute the entire circumference of the main opening 110 except for being in communication with the first to fourth sub-openings 120-150. Part of it. When the head 92 of the probe 90 of FIG. 2 is located at the main opening 110, the first positioning edge 160A, the second positioning edge 170A, the first elastic edge 180A and the second elastic edge 190A together provide sufficient positioning force to The head 92 of the probe 90 is confined to the main opening 110. As such, it is ensured that the positioning force of the positioning member 100 on the head 92 of the probe 90 is sufficient to avoid positional displacement of the head 92 of the probe 90 during subsequent assembly and to fail to complete assembly or damage. The sum of the side lengths of the first elastic side 180A and the second elastic side 190A may be greater than or equal to the sum of the side lengths of the first positioning side 160A and the second positioning side 170A, which may be determined according to actual needs, and is not required to limit the present invention. It should be noted that most of the embodiments of the present invention have positioning edges and elastic edges similar to those of the present embodiment, but only the embodiment is described as an example, which will be described first.
In the present embodiment, the shape of the main opening 110 of the positioning member 100 is mainly a cross-sectional shape of the head of the probe to be substantially fitted, for example, a substantially circular shape, but the present invention does not limit the shape of the main opening. Since the first positioning portion 160, the second positioning portion 170, and the first elastic portion 180 of the embodiment are complementary to the second elastic portion 190, they can be provided to the head of the probe in order to support the probe. Provides a good positioning effect. In addition, the positioning member 100 of the present embodiment is exemplified by a sheet shape, and the material thereof may be, for example, polyimide. The main opening 110, the first sub-opening 120, the second sub-opening 130, the third sub-opening 140, and the fourth sub-opening 150 of the positioning member 100 can be directly formed by laser processing, stamping, or the like, or by using a photomask. Positioning member 100. In the present embodiment, the first sub-opening 120, the second sub-opening 130, the third sub-opening 140, and the fourth sub-opening 150 are strip-shaped. The definition of the strip generally means that the width in the direction perpendicular to the direction of extension remains constant. In addition, it is preferable that the first sub-opening 120, the second sub-opening 130, the third sub-opening 140, and the fourth sub-opening 150 have an arc-shaped edge at one end away from the main opening 110. For example, if the secondary openings are cracks, after the crack is stressed, the stress concentration may continue to crack along the crack direction. Therefore, the first secondary opening 120, the second secondary opening 130, and the third secondary opening 140 are The fourth sub-opening 150 is preferably strip-shaped and has an arcuate edge at one end away from the main opening 110.
Referring to FIG. 4A , the first sub-opening 120 is point-symmetrical to the third sub-opening 140 and the second sub-opening 130 is point-symmetrical to the fourth sub-opening 150 with respect to a geometric center C10 of the main opening 110 . The meaning of the first sub-opening 120 being point-symmetrical to the third sub-opening 140 means that the center of the geometric center C10 is point-symmetric, around the geometric center C10 After the rotation by 180°, the contour position of the first sub-opening 120 and the third sub-opening 140 and the contour position before the rotation completely coincide. Herein, the sub-openings in FIGS. 5A, 5B, 7, 9, 11, and 16 are also point-symmetrical designs. With this design, the first positioning portion 160 is also point-symmetrical to the second positioning portion 170 with respect to the geometric center C10 of the main opening 110, and the first elastic portion 180 is point-symmetrical to the second elastic portion 190. In this way, it is helpful to stably provide the optimal positioning effect of the probe's head (or called the needle tail). In this embodiment, the first sub-opening 120, the second sub-opening 130, the third sub-opening 140, and the fourth sub-opening 150 are both straight and parallel to each other. The length of the first secondary opening 120 is greater than the length of the second secondary opening 130. In other embodiments, the first sub-opening, the second sub-opening, the third sub-opening and the fourth sub-opening may also be respectively a curved shape, a broken line shape or other shapes.
Referring to FIG. 5A, the positioning member 100A of the probe card of the present embodiment is similar to the positioning member 100 of FIG. 4A, except that the main openings 110 of the positioning member 100A of the embodiment are arranged in an array and any four adjacent The main openings 110 are arranged in a rectangular shape. The positioning member 100A has a plurality of main openings 110, a plurality of first sub-openings 120, a plurality of second sub-openings 130, a plurality of third sub-openings 140, and a plurality of fourth sub-openings 150. Similar to the positioning member 100 of FIG. 4A, each main opening 110 in FIG. 5A corresponds to a first sub-opening 120, a second sub-opening 130, a third sub-opening 140 and a fourth sub-opening 150, and the connection manner is The relative positions are the same as those shown in FIG. 4A, and therefore also have the same plurality of first positioning portions 160, a plurality of second positioning portions 170, a plurality of first elastic portions 180, and a plurality of second portions as shown in FIG. 4A. Elastic portion 190. With such a design, the shortest distance D22 between the main openings 110 or these pairs The shortest distance D24 between the openings is much larger than the distance D10 between the openings 85 of FIG. Therefore, the positioning member 100A of the probe card of the present embodiment can be easily applied to the probe head using the fine pitch probe, and when the needle diameter of the probe is increased, the main opening 110 can still be sufficiently maintained. The distance is not easily broken.
The first sub-opening 120 and the second sub-opening 130 of the embodiment have a misalignment distance D26. Specifically, both ends of the first sub-opening 120 are located on the straight line L10, but the two ends of the second sub-opening 130 do not fall on the straight line L10 at the same time, so the first sub-opening 120 and the second sub-opening 130 have The offset distance is D26. In addition, there is a bias distance D28 between the first sub-opening 120 and the fourth sub-opening 150. Specifically, both ends of the first sub-opening 120 are located on the straight line L10, but the two ends of the fourth sub-opening 150 do not fall on the straight line L10 at the same time, so the first sub-opening 120 and the fourth sub-opening 150 have The offset distance is D28. Of course, the second sub-opening or the fourth sub-opening may be located on a straight line as an example, and the present invention is not limited.
Next, referring to FIG. 5B, the positioning member 100B of the probe card of the present embodiment is similar to the positioning member 100 of FIG. 4A and the positioning member 100A of FIG. 5A, with the difference being any three adjacent main members of the positioning member 100B of the present embodiment. The openings 110 are arranged in a triangle. With such a design, the positioning member 100B of the probe card of the embodiment can be applied to the probe heads of the probes in different arrangements, and the main openings 110 still have a considerable distance between them without being easily rupture. Of course, the arrangement of the plurality of main openings on the positioning member of the present invention (the manner of the holes) is not limited to the above two embodiments, and may be different depending on the object to be tested, the diameter of the probe used, or the material of the positioning member. The arrangement of different holes can be, for example, a single object to be tested, that is, the above two embodiments The cloth hole method or the cloth hole method of one of the embodiments plus the cloth hole method having only one main opening, etc., are not intended to limit the present invention.
Next, referring to FIG. 6, the positioning member 200A of the probe card of the present embodiment is similar to the positioning member 100 of FIG. 4A, and only the difference is introduced here. The main opening 210A of the positioning member 200A of the present embodiment has a line of symmetry L20 passing through its geometric center C20. The first sub-opening 220A and the fourth sub-opening 250A are line-symmetric with respect to the second sub-opening 230A and the third sub-opening 240A with respect to the symmetry line L20. The meaning of the first sub-opening 220A and the fourth sub-opening 250A being line-symmetric with respect to the second sub-opening 230A and the third sub-opening 240A means that the symmetry line L20 is a line symmetrical line, and the positioning member 200A is folded in the symmetry line L20. Thereafter, the contour positions of the first sub-opening 220A and the fourth sub-opening 250A and the contour positions of the second sub-opening 230A and the third sub-opening 240A completely coincide. It is explained here that the sub-openings in FIGS. 8, 10, 12, 14A and 14B are also of a line-symmetric design. In this embodiment, the length of the first sub-opening 220A is smaller than the length of the third sub-opening 240A. With such a design, the rigidity of the elastic portion 260A between the first sub-opening 220A and the second sub-opening 230A is lower than that of the elastic portion 260B between the fourth sub-opening 250A and the third sub-opening 240A, and is easily deformed. And not easy to damage.
Next, referring to FIG. 7, the positioning member 200B of the probe card of the present embodiment is similar to the positioning member 100 of FIG. 4A, and only the difference is introduced here. In this embodiment, the first sub-opening 220B is parallel to the third sub-opening 240B, and the second sub-opening 230B is parallel to the fourth sub-opening 250B, but the first sub-opening 220B is not parallel to the second sub-opening 230B. The length of the first sub-opening 220B is greater than the length of the second sub-opening 230B. on the other hand, The first positioning portion 264A of the present embodiment has a first positioning edge 264A1 around the main opening 210B, and the second positioning portion 264B has a second positioning edge 264B1 around the main opening 210B. The first elastic portion 262A is at the main opening. The circumference of 210B has a first elastic edge 262A1, and the second elastic portion 262B has a second elastic edge 262B1 around the main opening 210B. It should be noted that the first and second positioning edges 264A1 and 264B1 and the first and second elastic edges 262A1 and 262B1 of the present embodiment are as described in the above embodiment of FIG. 4A, and are not described herein. . The first sub-opening 220B and the second sub-opening 230B of the embodiment have a bias distance D26B. In addition, the first sub-opening 220B and the fourth sub-opening 250B have a bias distance D28B. The inventive features of the distances D26B and D28B are as described in the embodiment of FIG. 5A above, and are not described herein.
Next, referring to FIG. 8, the positioning member 200C of the probe card of the present embodiment is similar to the positioning member 200A of FIG. 6, and only the difference is introduced here. In this embodiment, the first sub-opening 220C is parallel to the second sub-opening 230C, but the third sub-opening 240C is not parallel to the fourth sub-opening 250C.
Next, referring to FIG. 9, the positioning member 200D of the probe card of the present embodiment is similar to the positioning member 200B of FIG. 7, and only the difference is introduced here. In this embodiment, the second sub-opening 230D and the fourth sub-opening 250D are straight, and the first sub-opening 220D and the third sub-opening 240D are curved.
Next, referring to FIG. 10, the positioning member 200E of the probe card of the present embodiment is similar to the positioning member 200C of FIG. 8, and only the difference is introduced here. In this embodiment, the first sub-opening 220E and the second sub-opening 230E are in a straight strip shape, and the third sub-opening 240E and the second sub-opening 240E The four sub-openings 250E are curved.
Next, referring to FIG. 11, the positioning member 200F of the probe card of the present embodiment is similar to the positioning member 200B of FIG. 7, and only the difference is introduced here. In this embodiment, the first sub-opening 220F and the third sub-opening 240F are in a fold line shape, that is, respectively include two connected straight portions 220F1, 220F2, 240F1, and 240F2. The portion 220F1 of the first secondary opening 220F away from the main opening 210F is parallel to the second secondary opening 230F, and the portion 220F2 of the first secondary opening 220F adjacent to the primary opening 210F is not parallel to the second secondary opening 230F.
Next, referring to FIG. 12, the positioning member 200G of the probe card of the present embodiment is similar to the positioning member 200C of FIG. 8, and only the difference is introduced here. In this embodiment, the third sub-opening 240G and the fourth sub-opening 250G are in a line shape, that is, respectively include two connected straight portions. A portion of the third sub-opening 240G away from the main opening 210G is parallel to the fourth sub-opening 250G, and a portion of the third sub-opening 240G close to the main opening 210G is not parallel to the fourth sub-opening 250G.
Referring to FIG. 13 and FIG. 5A, the probe head 20 of the present embodiment is applicable to, for example, a vertical probe card to connect a circuit substrate of a vertical probe card (for example, a printed circuit board or a space transformer). Electrically connected to at least one device under test. Specifically, the probe head 20 includes an upper guide 21, a lower guide 22, a positioning member 100A, and a plurality of probes 90. The upper guide plate 21 has a plurality of upper through holes 21a. The lower guide 22 has a plurality of lower through holes 22a. The positioning member 100A is located between the upper guide plate 21 and the lower guide plate 22. Each of the probes 90 is positioned between the upper through hole 21a of the upper guide 21 and the lower through hole 22a of the lower guide 22, and passes through The main opening 110 of the positioning member 100A. Of course, the positioning member 100A can also be replaced with a positioning member of other embodiments of the present invention. In addition, it should be noted that these probes 90 can be produced by a micro electro mechanical systems (MEMS) process, that is, a so-called MEMS needle or a mechanical press forming of a wire, that is, a so-called Forming the needle.
The positioning member of the above probe card is exemplified by two positioning portions corresponding to each of the main openings and the auxiliary openings of the two elastic portions, but each main opening of the positioning member of the probe card of the present invention may also correspond to only one positioning. The sub-openings of the one portion and one elastic portion, or each of the main openings may also correspond to a plurality of positioning portions and a plurality of sub-openings of the elastic portions. Hereinafter, the design of each of the main openings corresponding to one positioning portion and one sub-opening of the elastic portion will be described in several embodiments. And, the positioning member of the probe card of the present invention and the inventive feature of the probe head using the above-described positioning member have been described in detail in the above embodiment, and in the following embodiments, the same as the previous embodiment will no longer be used. Narrative, first stated.
Referring to FIG. 14A, the positioning member 300A of the probe card of the present embodiment has a main opening 310A, a first sub-opening 320A, a second sub-opening 330A, a positioning portion 360A and an elastic portion 380A. The first sub-opening 320A and the second sub-opening 330A are arranged around the main opening 310A, and the first sub-opening 320A and the second sub-opening 330A are both connected to the main opening 310A. The elastic portion 380A is located between the first sub-opening 320A and the second sub-opening 330A. The positioning portion 360A is complementary to the elastic portion 380A, that is, the positioning portion 360A and the elastic portion 380A together constitute the entire circumference of the main opening 310A. In the present embodiment, the positioning portion 360A and the elastic portion 380A together constitute the entire circumference of the main opening 310A except for the first sub-opening 320A and the second sub-opening 330A. Outside the connected part. The rigidity of the positioning portion 360A is greater than the rigidity of the elastic portion 380A. The positioning edge 360A1 provided by the complementary positioning portion 360A beside the main opening 310A and the elastic edge 380A1 provided by the elastic portion 380A beside the main opening 310A can provide a good positioning effect of the probe.
Next, referring to FIG. 14B, the positioning member 300C of the probe card of the present embodiment is similar to the positioning member 300A of FIG. 14A, and only the difference is introduced here. The shape of the main opening 310C of the positioning member 300C of the present embodiment is mainly a cross-sectional shape of the head of the probe to be substantially fitted, and is, for example, a substantially rectangular shape. The complementary positioning portion 360C and the elastic portion 380C can also provide a good positioning effect of the probe, and the elastic portion 380C can be elastically deformed to avoid damaging the probe. The main opening 310C of the positioning member 300C of the present embodiment has a rectangular shape and can be used for the MEMS needle 90B of FIG. When the stopper portion 92B of the MEMS needle 90B passes through the main opening 310C, the elastic portion 380C is pushed by the stopper portion 92B to be elastically deformed, and the elastic portion 380C is restored to the original state after the stopper portion 92B is separated from the main opening 310C.
Referring to Figure 16, the positioning member 400 of the probe card of the present embodiment is similar to the positioning member 100 of Figure 4A, and only the differences will be described herein. The shape of the main opening 400 of the positioning member 400 of the present embodiment is mainly a cross-sectional shape of the head of the probe to be substantially fitted, and is, for example, a substantially rectangular shape. The complementary first positioning portion 460, the second positioning portion 470, the first elastic portion 480 and the second elastic portion 490 can also provide a good positioning effect of the probe, and the first elastic portion 480 and the second elastic portion 490 It can be elastically deformed to avoid damage to the probe. The main opening 410 of the positioning member 400 of the present embodiment has a rectangular shape and can be used for the MEMS needle 90C of FIG. Two in MEMS pin 90C When the stopping portion 92C passes through the main opening 410, the first elastic portion 480 and the second elastic portion 490 are respectively pushed by the stopping portion 92C to be elastically deformed, and the first elastic portion 480 is after the stopping portion 92C leaves the main opening 410. The second elastic portion 490 is restored to its original state. The first positioning portion 460 and the second positioning portion 470 are disposed opposite to each other, and the first elastic portion 480 and the second elastic portion 490 are disposed opposite to each other.
In summary, in the present invention, the complementary positioning portion and the elastic portion of the positioning member can provide a good positioning effect of the probe, and the elastic portion between the auxiliary openings can provide an appropriate deformation margin when the probe passes through. The degree is prevented from damaging the probe by excessive friction, and the strength of the positioning member between the main opening and the main opening is also raised by the distance being enlarged to prevent the distance between the main opening and the main opening from collapsing. Thereby, the assembly difficulty of the probe head of the probe card is reduced and the product yield of the probe head of the probe card is improved.
100‧‧‧ positioning parts
110‧‧‧Main opening
120~150‧‧‧First opening to fourth opening
160‧‧‧First Positioning Department
170‧‧‧Second Positioning Department
180‧‧‧First elastic part
190‧‧‧Second elastic part
C10‧‧‧Geometry Center
160A‧‧‧First positioning edge
170A‧‧‧Second positioning edge
180A‧‧‧First elastic edge
190A‧‧‧Second elastic side
The positioning member of the probe card has a main opening, a first sub-opening, a second sub-opening, at least one positioning portion, and at least one elastic portion, wherein the first sub-opening and the second sub-opening are arranged in the The main opening is connected to the main opening, the at least one positioning portion is complementary to the at least one elastic portion, and the at least one elastic portion is located between the first sub-opening and the second sub-opening, the at least one positioning portion The at least one positioning portion has a positioning edge around the main opening, and the at least one elastic portion has an elastic edge around the main opening.
The positioning member of the probe card of claim 1, wherein the side length of the positioning edge is greater than or equal to the side length of the elastic edge.
The positioning member of the probe card of claim 1, wherein the main opening is substantially circular or rectangular.
The positioning member of the probe card of claim 1, wherein the first sub-opening and the second sub-opening are respectively a strip shape, a curved shape or a broken line shape.
The locating member of the probe card of the first aspect of the invention has a third sub-opening and a fourth sub-opening, wherein the at least one positioning portion includes a first positioning portion and a second positioning portion. The at least one elastic portion includes a first elastic portion and a second elastic portion, and the first secondary opening, the second secondary opening, the third secondary opening and the fourth secondary opening are sequentially arranged around the main opening And communicating with the main opening, the first elastic portion is located between the first sub-opening and the second sub-opening, the first positioning portion is located between the second sub-opening and the third sub-opening, the second The elastic portion is located between the third sub-opening and the fourth sub-opening, and the second positioning portion is located at the first sub-opening Between the fourth auxiliary openings, the rigidity of the first positioning portion and the rigidity of the second positioning portion are greater than the rigidity of the first elastic portion and the rigidity of the second elastic portion.
The positioning member of the probe card of claim 5, wherein the first positioning portion and the second positioning portion are oppositely disposed, and the first elastic portion and the second elastic portion are disposed opposite to each other.
The positioning member of the probe card of claim 5, wherein the first sub-opening, the second sub-opening, the third sub-opening and the fourth sub-opening are respectively strip-shaped and curved Or a line shape.
The positioning member of the probe card of claim 7, wherein the first sub-opening, the second sub-opening, the third sub-opening, and the end of the fourth sub-opening away from the main opening have an arc shape. edge.
The positioning member of the probe card of claim 5, wherein the first sub-opening and the fourth sub-opening have a misalignment distance, or the first sub-opening and the second sub-opening There is a bias distance between them.
The positioning member of the probe card of claim 5, wherein the at least one positioning edge comprises a first positioning edge and a second positioning edge, the at least one elastic edge comprises a first elastic edge and a first edge a second locating portion having the first locating edge around the main opening, the second locating portion having the second locating edge around the main opening, the first elastic portion being at the main opening The second elastic portion has the second elastic edge around the main opening, and the first positioning edge, the second positioning edge, the first elastic edge and the second elastic edge are To support a probe.
The locating member of the probe card of claim 10, wherein the sum of the sides of the first elastic side and the second elastic side is greater than or equal to the sides of the first positioning edge and the second positioning edge. Long total.
The positioning member of the probe card of claim 5, wherein the first sub-opening and the second sub-opening are parallel to each other, or the first sub-opening and the third sub-opening are parallel to each other.
The locating member of the probe card of claim 5, wherein the first sub-opening and the second sub-opening are line-symmetric with each other with respect to a symmetry line passing through a geometric center of the main opening, or The first sub-opening and the third sub-opening are point-symmetric with each other at a geometric center of the main opening.
The positioning member of the probe card of claim 13, wherein the first sub-opening point is symmetric with respect to the third sub-opening, and the second sub-opening point is symmetric with respect to the fourth sub-opening.
The positioning member of the probe card of claim 13, wherein the first sub-opening is symmetric with the third sub-opening, the second sub-opening is symmetric with the fourth sub-opening, the first sub- The length of the opening is greater than or equal to the length of the second secondary opening.
The positioning member of the probe card of claim 13, wherein the first sub-opening is symmetrical with the second sub-opening, the third sub-opening is symmetrical with the fourth sub-opening, the first sub- The length of the opening is less than or equal to the length of the third secondary opening.
The positioning member of the probe card of claim 5, comprising a plurality of the main openings, a plurality of the first sub-openings, a plurality of the second sub-openings, a plurality of the third sub-openings, and a plurality of The fourth sub-opening, the plurality of first positioning portions, and the plurality of second portions a positioning portion, a plurality of the first elastic portions and a plurality of the second elastic portions, each of the main openings communicating with a corresponding one of the first sub-openings, one of the second sub-openings, one of the third sub-openings and one of the first Four pairs of openings, the main openings are arranged in an array, and any four adjacent main openings are arranged in a rectangle.
The positioning member of the probe card of claim 5, comprising a plurality of the main openings, a plurality of the first sub-openings, a plurality of the second sub-openings, a plurality of the third sub-openings, and a plurality of The fourth sub-opening, the plurality of first positioning portions, the plurality of second positioning portions, the plurality of first elastic portions and the plurality of second elastic portions, each of the main openings communicating with a corresponding one of the first pairs An opening, a second sub-opening, a third sub-opening and a fourth sub-opening, the main openings are arranged in an array, and any three adjacent main openings are arranged in a triangle shape.
A probe head of a probe card, comprising: an upper guide plate having a plurality of upper through holes; a lower guide plate located on one side of the upper guide plate and having a plurality of lower through holes; as in the patent application scope 1 The positioning member of the probe card of any one of the items -18, located between the upper guide plate and the lower guide plate, and having a plurality of the main openings; and a plurality of probes positioned on the upper guide plate The upper through holes and the lower through holes of the lower guide plate pass through the main openings of the positioning member.
TW103122324A 2014-06-27 2014-06-27 A positioning member and the probe card probe card probe head TWI541515B (en)
TW103122324A TWI541515B (en) 2014-06-27 2014-06-27 A positioning member and the probe card probe card probe head
US14/558,735 US9638716B2 (en) 2014-06-27 2014-12-03 Positioner of probe card and probe head of probe card
DE102015110128.9A DE102015110128A1 (en) 2014-06-27 2015-06-24 Positioner of a sample card and test head of a sample card
JP2015128827A JP6320970B2 (en) 2014-06-27 2015-06-26 Probe card positioning device and probe holder
CN201510361788.3A CN105223385B (en) 2014-06-27 2015-06-26 The locating piece of probe card and the probe of probe card
TW201600863A TW201600863A (en) 2016-01-01
TWI541515B true TWI541515B (en) 2016-07-11
ID=54839956
US (1) US9638716B2 (en)
JP (1) JP6320970B2 (en)
CN (1) CN105223385B (en)
DE (1) DE102015110128A1 (en)
TW (1) TWI541515B (en)
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JP6235785B2 (en) * 2013-03-18 2017-11-22 日本電子材料株式会社 Probe card guide plate and probe card guide plate manufacturing method
2014-06-27 TW TW103122324A patent/TWI541515B/en active
2014-12-03 US US14/558,735 patent/US9638716B2/en active Active
2015-06-24 DE DE102015110128.9A patent/DE102015110128A1/en not_active Ceased
2015-06-26 JP JP2015128827A patent/JP6320970B2/en active Active
2015-06-26 CN CN201510361788.3A patent/CN105223385B/en active IP Right Grant
CN105223385A (en) 2016-01-06
CN105223385B (en) 2019-02-19
JP2016011956A (en) 2016-01-21
US9638716B2 (en) 2017-05-02
DE102015110128A1 (en) 2015-12-31
TW201600863A (en) 2016-01-01
JP6320970B2 (en) 2018-05-09
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