JP2005251487A - Spiral contact, spiral sheet, and manufacturing method of spiral contact - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spiral contact of which, a spring constant can be set relatively easily, capable of reducing manufacturing time, manufacturing cost, and contact resistance against an external contact, and to provide a manufacturing method of the same. <P>SOLUTION: As the square-shaped spiral contact 10 can be manufactured by punching a metal plate successively by a linear punch, the manufacturing time and the manufacturing cost can be reduced. The spring constant of the spiral contact 10 can be set only by adjusting the thickness of the metal plate 10A. As the shape of the spiral contact 10 is square, The edge of a wound part 12 can be made to contact with the external contact with a point contact, the contact resistance of the spiral contact 10 against the external contact can be reduced. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a spiral contactor individually connected to a plurality of external connection terminals arranged in an electronic component such as a semiconductor, and is particularly easy to manufacture and can reduce manufacturing time and manufacturing cost. The present invention relates to a spiral contact and a spiral sheet and a method for manufacturing the spiral contact.

  The semiconductor inspection apparatus (IC socket) described in Patent Document 1 is for temporarily temporarily connecting a semiconductor (IC or the like) to an external circuit board or the like. On the back side of the semiconductor, external contacts made up of a large number of spherical contacts or flat contacts arranged in a grid or matrix form are provided, and a large number of recesses are formed on the insulating base facing this. And a spiral contact is disposed in the recess.

  When the back side of the semiconductor is pressed toward the insulating base, for example, the spiral contact comes into contact with the outer surface of the spherical contact so that the spiral contact is spirally wound. The electrical connection between the contacts is ensured.

Further, FIGS. 37 to 40 of the cited document 1 describe a method of manufacturing a spiral contact by making use of a plurality of processing techniques such as plating and edging, or laser processing.
JP 2002-175859 A

  However, the spiral contact described in Patent Document 1 has the following problems.

(1) In the manufacturing method described in the above document, it is necessary to perform a plurality of processing techniques such as plating and edging processing or laser processing on the spiral contactor a plurality of times. Manufacturing costs are likely to rise.

(2) Since the spring constant of the spiral contact depends on the plate thickness of the spiral contact, it is necessary to thoroughly manage the concentration of the plating bath, the plating time, and the etching time. The plate thickness control tends to be complicated.

(3) In the spiral contactor, it is necessary to increase the contact pressure between the spiral contactor and the external contactor to reduce the contact resistance generated between the spiral contactor and the external contactor. It is preferable to make point contact via a corner or a corner. However, since the conventional spiral contact has a shape in which the arc-shaped contact is spirally extended from the outer edge portion toward the center portion, the spiral contact and the external contact are made to have sharp protrusions or It is a structure that is difficult to contact through the corners.

  The present invention is for solving the above-described conventional problems. The spring constant can be set relatively easily, the manufacturing time and the manufacturing cost can be reduced, and the contact of the spiral contact with the external contact is achieved. An object of the present invention is to provide a spiral contactor capable of reducing resistance and a method of manufacturing the spiral contactor.

The present invention is a spiral contact having a frame portion provided on the outer peripheral side and a winding portion extending spirally from the frame portion toward the inner peripheral center,
The winding portion is formed by repeating a linear extension of the next contact side in a direction different from the one direction from the end of the contact side extending linearly in one direction. It is what.

  In the spiral contact according to the present invention, since the winding part is formed in a square spiral shape, a plurality of corner parts are easily formed. Therefore, since it is possible to make point contact between the spiral contact and the external connection portion of the electronic component via the corner portion, the contact resistance between the spiral contact and the external connection portion can be reduced. .

  In the above, the length dimension of each contact side is formed so as to become shorter from the frame part toward the inner peripheral center, or the width dimension of each contact side is changed from the frame part to the inner side. What is formed so as to become narrower toward the circumferential center, or the included angle θ between one adjacent contact side and the other contact side is formed in a range of 60 ° ≦ θ <180 °, Further, it is preferable that the included angle θ is formed to have the same size.

  In the above means, the spring constant over the entire length of the winding portion can be set uniformly. For this reason, it becomes possible to prevent a problem that the spring becomes harder (the spring constant becomes larger) toward the tip (free end side) of the winding portion.

  Moreover, the said winding part can be comprised as what is plastically deformed by the planar shape or the solid convex shape.

  Moreover, this invention is a spiral sheet | seat characterized by the spiral contactor described in any of the said being connected through the hoop material.

  The spiral sheet can be separated by simply separating the individual spiral contacts from the hoop material, and thus a sheet for holding the individual spiral contacts can be dispensed with.

  In the above-mentioned invention, it is preferable that the frame part of another spiral contactor adjacent to the frame part of one spiral contactor is arranged in parallel.

  In the above process, the mounting density per unit area of the spiral contact can be increased. Therefore, it becomes possible to deal with even smaller electronic components.

  Further, the present invention is a method for manufacturing a spiral contact having a frame provided on the outer peripheral side and a winding portion in which a plurality of linearly extending contact sides are spirally connected. It is formed by the steps a) to (e).

(A) forming a center hole in the metal plate;
(B) drilling a long hole protruding outward from the center hole;
(C) a step of drilling another long hole that intersects the long hole continuously to the end of the long hole;
(D) By repeating the step (c) sequentially, other long holes are continuously drilled outside the central hole or the long hole previously drilled to form a spiral wound portion. Process,
(E) forming a hoop material to which the frame portion and the frame portion are coupled by forming a separation hole between the adjacent winding portion and the winding portion;

  Alternatively, a method of manufacturing a spiral contact having a frame portion provided on the outer peripheral side and a winding portion in which a plurality of linearly extending contact sides are spirally connected, the following (a) to It is formed by the step (e).

(A) a step of drilling a long hole in the metal plate;
(B) a step of making another long hole continuing to the end of the long hole crossing the long hole,
(C) by repeating the step (b), continuously forming other long holes inside the previously formed long holes to form a spiral wound portion;
(D) a step of forming a central hole continuous with the long hole formed on the innermost peripheral side;
(E) forming a separation hole between adjacent winding parts and the winding part to form the frame part and a hoop material to which the frame part is connected;

  In the above manufacturing method, it is preferable that two or more long holes are formed simultaneously. In this case, the long holes can be formed by punching with a punch.

  In the above manufacturing method, the spiral contact can be formed simply by repeating the punching process of punching a metal plate with a punch. That is, since a plurality of processing techniques such as plating and etching can be eliminated as in the prior art, the spiral contact can be manufactured at a low manufacturing cost by a simpler manufacturing method. Moreover, since the punching process can be performed continuously, the manufacturing time of the spiral contactor can be greatly shortened.

  In addition, it is possible to adjust the spring constant of the spiral contactor simply by changing the thickness of the metal plate. Therefore, setting and changing of the spring constant of the spiral contact can be performed relatively easily.

  In the above, the length dimension of the long hole is formed so as to become shorter from the outer peripheral side toward the inner peripheral side, or the included angle α between one adjacent long hole and the other long hole is 60 It is preferably formed in the range of ° ≦ α <180 °, and the included angles α are all formed in the same size.

  With the above means, it becomes possible to manufacture triangular contactors such as triangles and squares.

  In the present invention, since a plurality of corner portions can be formed in the winding portion, the spiral contact and the external connection portion of the electronic component can be brought into point contact via the corner portion. Therefore, the contact resistance between the spiral contact and the external connection portion can be reduced.

  Further, since the spiral contact can be manufactured by a simple method of punching with a punch, the manufacturing cost can be reduced and the manufacturing time can be greatly shortened.

  Further, since the spring constant of the spiral contact can be adjusted by changing the thickness of the metal plate, the spring constant can be easily set or changed.

  In addition, a plurality of spiral contacts can be formed as one sheet, and the mounting density in the sheet can be increased.

First, the structure of the spiral contact according to the present invention will be described.
FIG. 1 is a plan view showing a spiral contact as a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1, and FIG. FIG. 4 is a cross-sectional view similar to FIG. 2 showing the three-dimensionally shaped spiral contact, and FIG. 4 is a cross-sectional view similar to FIG. 2 illustrating the connection between the spiral contact and the spherical contact.

  The spiral contact 10 shown in FIG. 1 is formed of a conductive metal plate 10A made of a thin copper plate or the like. On the outer peripheral side of the spiral contactor 10, a frame portion 11 formed in a substantially square shape by four outer side portions 11a, 11b, 11c and 11d is provided. An opening portion 11A is formed inside the frame portion 11, and a winding portion 12 extending in a square spiral shape from the frame portion 11 is integrally formed in the opening portion 11A. The winding part 12 in this embodiment is formed of a contact side consisting of reference numerals 12a, 12b, 12c, 12d and 12e and a contact part 12f provided on the innermost periphery.

  The contact side 12a extends in a straight line along the outer side part 11b from the outer side part 11a toward the outer side part 11c which is the opposite side. Similarly, the contact side 12b extends straight from the end of the contact side 12a toward the outer side part 11d along the outer side part 11c, and the contact side 12b extends from the end of the contact side 12a to the outer side part. The contact side 12c extends in a straight line along the outer side part 11c from the end of the contact side 12b toward the outer side part 11a, and extends in a straight line along the outer side part 11d. Extends linearly from the end of the contact side 12c toward the contact side 12a along the outer side 11a, and the contact side 12e extends from the end of the contact side 12d toward the contact side 12b. It extends in a straight line along. The contact portion 12f is provided at the end of the contact side 12e.

  As shown in FIG. 1, a long hole 13a is formed between the outer side portion 11b and the contact side 12a. Similarly, a straight long hole 13b is formed between the outer side portion 11c and the contact side 12b, and a straight long hole 13c is formed between the outer side portion 11d and the contact side 12c. A straight long hole 13d is formed between the outer side portion 11a and the contact side 12d, and a straight long hole 13e is formed between the contact side 12a and the contact side 12e. . Linear long holes 13f and 13g are formed between the contact portion 12f and the contact side 12b and contact side 12c, respectively. The contact portion 12f and the contact sides 12c, 12d and 12e A central hole 13h is formed in the enclosed region.

  As shown in FIG. 1, when the width dimensions of the contact sides 12a, 12b, 12c, 12d, 12e are Wa, Wb, Wc, Wd, We, and the length dimensions are La, Lb, Lc, Ld, Le, Are formed in a relationship of Wa> Wb> Wc> Wd> We and La> Lb> Lc> Ld> Le.

  In this embodiment, if the included angles between adjacent contact sides are θa, θb, θc, θd, and θe as shown in FIG. 1, each included angle is θa = θb = θc = θd = θe = 90. °.

  The spiral contactor 10 has a plate thickness of 10 μm to 100 μm, and the overall width dimension in the X and Y directions is about 300 μm to 2000 μm.

  The winding portion 12 of the spiral contactor 10 has a planar shape as shown in FIG. 2, or a convex shape in which the contact portion 12f of the winding portion 12 is plastically deformed upward from the frame portion 11 as shown in FIG. It is formed in a mold shape.

  The spiral contact 10 has the contact side 12a on the fixed end side and the contact part 12f on the free end side, and the winding part 12 has the contact side 12a on the fixed end and the contact part 12f side which is the free end on the contact part 12f side. 2 and 3, it can be elastically deformed in the Z direction.

  As shown in FIG. 4, the spiral contact 10 is fixed to the substrate 40. A plurality of through holes 41 are penetrated through the surface of the substrate 40, and a first connection part 42 surrounding the edge part of the through hole 41 is formed by plating or the like on the outer edge part thereof. On the inner wall of the through hole 41, a conductive portion 43 is formed continuously from the first connection portion 42, and a second connection portion (not shown) provided on the back surface of the first connection portion 42 and the substrate 40. Are connected via the conductive portion 43. The spiral contactor 10 has a frame portion 11 fixed to the first connection portion 42 via a conductive adhesive or the like, and the winding portion 12 is placed on the first connection portion 42. The through hole 41 extends in the center direction.

  For example, when the spherical external contact 31 provided on the bottom surface of the electronic component 30 is embedded so as to be pushed into the through hole 41, the winding portion 12 of the spiral contact 10 is elastically deformed in the Z2 direction as shown in the drawing. The outer contact 31 and the spiral contact 10 can be electrically connected to contact the outer surface of the outer contact 31 so as to cling. At this time, any one or some of the contact sides 12 a to 12 e or the contact part 12 f of the winding part 12 can be brought into contact with the surface of the external contact 31. Since the edge forms a sharp corner, the contact portion and the surface of the external contact 31 can be brought into point contact via the corner. Therefore, the contact resistance between the spiral contact 10 and the external contact 31 can be reduced.

Next, the manufacturing method of the above spiral contactor 10 is demonstrated.
5 to 11 are partial plan views showing the manufacturing process of the spiral contactor. FIG. 5 shows a case where a center hole is formed, FIG. 6 shows a case where a long hole continuous to the center hole is formed, and FIG. 8 forms the next long hole continuous with the long hole formed in FIG. 7, FIG. 8 shows the case where the next long hole continuous with the long hole formed in FIG. 10 shows a state where the spiral contactor has been manufactured, and FIG. 10 shows a state where the manufacture of the spiral contactor is completed. In addition, the part shown with a dashed-dotted line in FIG. 5 thru | or FIG. 11 has shown the part formed in the process.

  A metal plate 10A having a plate thickness of 10 μm to 100 μm for forming a spiral contact is prepared, and this is loaded into a known punching apparatus (not shown). The punching device includes a plurality of punches for punching, and by exchanging these punches in order, or by moving the metal plate 10A intermittently to the operation position of each punch, The metal plate 10A can be punched in a predetermined shape.

  In the process shown in FIG. 5, a plurality of center holes 13h having a rectangular shape are formed in the metal plate 10A by punching with a first punch. In the next step shown in FIG. 6, a long hole 13g continuous with the center hole 13h is formed using a second punch extending linearly in the X direction. At this time, as shown in a part circled by a dotted line in FIG. 6, the end of the second punch is positioned so as to reach a part of the center hole 13h.

  In the process shown in FIG. 7, a long hole 13f continuous to the long hole 13g is formed by using a third punch extending linearly in the Y direction. As shown in a part circled by a dotted line in FIG. 7, the third punch is drilled in a state where the end of the third punch is positioned so as to intersect the end of the long hole 13g. At this time, when the included angle between the long hole 13g and the long hole 13f is α1, α1 = 90 °.

  In the process shown in FIG. 8, a long hole 13e continuous with the long hole 13f is formed by using a fourth punch extending linearly in the X direction. Also at this time, as shown in a part circled by a dotted line in FIG. 8, the end of the fourth punch is drilled in a state of being positioned so as to cross the end of the long hole 13g. When the included angle between the long hole 13f and the long hole 13e is α2, α2 = 90 °.

  In the same manner, the linear punches having different length dimensions are sequentially replaced while being sequentially formed from the long hole 13f to the long hole 13a, so that the opening 11A and the square spiral shape are formed as shown in FIG. Are formed on the metal plate 10A. In FIG. 9, a long hole 13h is formed in parallel outside one side of the center hole 13h, a long hole 13c is formed in parallel outside the long hole 13g, and a long hole 13b is formed outside the long hole 13f. Are formed in parallel, and a long hole 13a is formed in parallel outside the long hole 13e. At this time, the included angles α3 to α6 between the adjacent long holes are α3 = α4 = α5 = α6 = 90 °.

  By performing the steps of FIG. 5 to FIG. 9 in order, the spirally wound portion 12 is formed from the inner peripheral side toward the outer peripheral side, but these steps are performed in the reverse order. Also good. That is, the long hole 13a on the outer peripheral side is first formed, and then the long hole 13b, the long hole 13c,... Are formed up to the long hole 13g, and finally the central hole 13h is formed. It may be formed toward the inner peripheral side.

  Alternatively, a plurality of long holes may be formed simultaneously. For example, when a substantially L-shaped punch is used, the central hole 13h and the long hole 13g are formed simultaneously, then the long hole 13f and the long hole 13e are formed simultaneously, and then the long hole 13d and the long hole 13c are formed simultaneously. Finally, the long hole 13b and the long hole 13a can be formed simultaneously. Also in this case, as described above, it is possible to form from the inner peripheral side toward the outer peripheral direction, and from the outer peripheral side toward the inner peripheral side.

  Furthermore, it is possible to simultaneously form two or more long holes by using a substantially U-shaped punch, a substantially B-shaped punch, or a substantially = -shaped punch. In particular, when an approximately-shaped punch is used, for example, the long hole 13a and the long hole 13e can be formed simultaneously, so that the contact side 12a can be formed in a single step. Therefore, it can be formed for each contact side of the winding part 12.

  Thus, the manufacturing time of the spiral contactor 10 can be shortened by forming a plurality of long holes at the same time.

  Next, as shown in FIG. 9, a separation hole 14 a extending in a predetermined length in the Y direction is punched by a punch between the winding part 12 adjacent to the left and right (X) direction and the winding part 12. It is formed. Furthermore, as shown in FIG. 10, two separation holes 14b extending in a predetermined length parallel to the X direction shown between the winding part 12 and the winding part 12 adjacent to each other in the vertical (Y) direction. 14b is punched with a punch. When the separation hole 14a and the separation holes 14b and 14b are formed, the frame portion 11 and the hoop material 15 are formed around the winding portion 12.

  As described above, a plurality of spiral contacts 10 can be simultaneously formed on the metal plate 10A by the above manufacturing method in which punching is repeated using different punches for each process.

  FIG. 11 is a partial plan view showing a part of a spiral sheet composed of a plurality of spiral contacts formed by the above manufacturing method.

  As shown in FIG. 11, hoop members 15 formed by the two separation holes 14 b and 14 b extend in the X direction at both ends in the Y direction of each spiral contactor 10. Each spiral contact 10 has an outer edge portion 11b of the frame portion 11 connected by a connecting portion 15a extending from the hoop material 15 in the Y2 direction in the drawing, and an outer edge portion 11d extending from the hoop material 15 in the Y1 direction in the drawing. By connecting with each other, a spiral sheet is formed.

  The pitch dimension of each spiral contactor 10 in the X direction with respect to the hoop material 15 is Px, and the pitch dimension of the hoop material 15 in the Y direction is Py. The pitch dimension Px and the pitch dimension Py are formed with the same dimension. It may be formed (Px = Py) or formed with different dimensions (Px ≠ Py).

  The plurality of spiral contacts 10 manufactured by the above manufacturing method are placed on the through holes 41 formed in the substrate 40 in the form of a spiral sheet connected to the hoop material 15. And the frame part 11 of each spiral contactor 10 and the 1st connection part 42 formed in each through hole 41 are connected using a conductive adhesive etc. as mentioned above.

  At this time, if the pitch dimensions Px and Py coincide with the pitch dimensions of the through holes 41 in the X and Y directions, the individual spiral contacts 10 and the individual through holes 41 can be easily aligned. It is possible to improve the efficiency of connection work.

  Then, after the frame portion 11 of each spiral contact 10 is completely fixed to the first connection portion 42 of each through hole 41, the connecting portion 15a that connects the hoop material 15 and each spiral contact 10 is cut. Is done. Thereby, the independent spiral contacts 10 are arranged on the surfaces of the plurality of through holes 41 of the substrate 40.

  FIG. 12 is a plan view showing a triangular spiral contactor according to a second embodiment of the present invention, FIG. 13 is a plan view showing a part of a spiral sheet to which the triangular spiral contactor is connected, FIG. FIG. 5 is a plan view showing a preferred arrangement of a spiral sheet in which a plurality of triangular spiral contacts are arranged.

  The spiral contact 20 shown in FIG. 12 has substantially the same configuration as the square spiral contact except that it is triangular.

  That is, it has a regular triangular frame portion 21 composed of outer side portions 21a, 21b and 21c. An opening 21 </ b> A is formed inside the frame portion 21, and a winding portion 22 that extends in a triangular spiral shape from the frame portion 21 is formed integrally with the frame body 21.

  The winding portion 22 in this embodiment is formed by a contact side consisting of reference numerals 22a to 22g, the contact side 22a being a fixed end side, and the contact side 22g being a free end side. The contact sides 22a to 22g are formed in parallel to any one of the outer side portions 21a, 21b and 21c, but the point that the included angle θ between the contact sides is approximately 60 ° is the above. Different from the spiral contactor 10.

  The spiral contact 20 can be formed by the same manufacturing method as described above. That is, in the punching apparatus, a central hole 23i is formed in a metal plate using a triangular punch, and the hole 23h or the long hole is formed by sequentially punching the central hole 23i with a linear punch having a different length. The winding part 22 can be formed by forming 23a from the center toward the outer peripheral direction. It is also possible to form in order from the long hole 23a on the outer peripheral side to the long hole 23h on the inner peripheral side, and finally form the central hole 23i. Furthermore, it is also possible to form a plurality of long holes at the same time by using a substantially bowl-shaped punch, a substantially Δ-shaped punch, or a substantially = shaped punch. In this case, the included angle α formed by the adjacent long holes and the long holes is preferably α = 60 °.

  Finally, a substantially triangular separation hole 24a and a rectangular separation hole 24b are punched out to form a spiral sheet comprising a hoop material 25 and a triangular spiral contactor 20 connected to the hoop material 25. (See FIG. 13).

  As shown in FIG. 14, in the case where a plurality of spiral contacts 20 are connected to the hoop material 25, the frame portion 21 of one spiral contact 20 and the frame of another spiral contact 20 adjacent thereto. What was arrange | positioned in the state which opposes the part 21 in parallel is preferable. With this arrangement, the number of spiral contacts 20 that can be arranged per unit area on the spiral sheet can be increased, that is, the mounting density of the spiral sheet can be increased.

  In particular, in the case of the triangular spiral contact 20, the mounting density can be increased by arranging the spiral contacts 20 adjacent to each other in opposite directions as shown in FIG. 14.

  In the above embodiment, the frame portion 11 has a square shape and a regular triangle shape, and the included angle θ between the outer side portions forming the winding portions 12 and 22 is θ = 90 ° or θ = 60 °. The rectangular or triangular spiral contact that spirals in the above relationship has been described, but the present invention is not limited to this. For example, the frame portion is a polygonal shape such as a rhombus, regular pentagon, regular hexagon, or regular octagon, and the winding portions are polygonal spirals such as a rhombus, pentagon, hexagon, or octagon, respectively. It may be a contact.

  In this case, the range of the included angle θ between the outer sides forming the winding portion may be 60 ° ≦ θ <180 °. For example, in the case of a regular pentagonal shape, θ = 108 °, a regular hexagonal shape Θ = 120 ° for the regular octagon type, θ = 135 ° for the regular octagonal type, and θ = 180 ° (n−2) / n (n is a natural number of 3 or more) for the regular regular n square type. It becomes.

  Therefore, the regular n-square spiral contactor is formed by using the manufacturing method described above by setting the included angle α between the long holes to the same angle as the included angle θ between the respective outer sides. Is possible. In the case of a rhombus shape, the opposing included angles (diagonals) have the same size, but adjacent adjacent angles are set to different angles.

  Even in the case of the polygonal spiral contact as described above, it is formed on the spiral sheet by arranging the frame of another spiral contact adjacent to the frame of one spiral contact. It is possible to increase the mounting density per unit area of the spiral contact.

The top view which shows the spiral contactor as 1st Embodiment, FIG. 2 is a cross-sectional view taken along line 2-2 in FIG. FIG. 2 is a cross-sectional view similar to FIG. 2 showing a three-dimensional spiral contact; FIG. 2 is a cross-sectional view similar to FIG. 2 showing the connection between the spiral contact and the spherical contact; It is a partial plan view of the metal plate showing the manufacturing process of the spiral contact, showing the case of forming the center hole, FIG. 5 is a plan view similar to FIG. 5 showing a case where a long hole continuous with the center hole is formed; FIG. 5 is a plan view similar to FIG. 5 showing a case where a next long hole is formed continuously to the long hole formed in FIG. FIG. 5 is a plan view similar to FIG. 5 showing a case where a next long hole is formed continuously to the long hole formed in FIG. FIG. 5 is a plan view similar to FIG. FIG. 5 is a plan view similar to FIG. 5 showing a case where separation holes extending in the X direction are formed above and below the winding part FIG. 5 is a plan view similar to FIG. 5 showing a state where the manufacture of the spiral contactor is completed; The top view which shows the triangular spiral contactor as the 2nd Embodiment of this invention, A plan view showing a part of a spiral sheet connected with a triangular spiral contact, A plan view showing a preferred arrangement of a spiral sheet in which a plurality of triangular spiral contacts are arranged;

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Spiral contactor 10A Metal plate 11, 21 Frame part 11a-11d, 21a-21c Outer side part 12, 22 Winding part 12a-12e, 22a-22g Contact side 12f Contact part 13a-13g, 23a-23h Long hole 13h , 23i Center holes 14a, 14b, 24a, 24b Separation holes 15, 25 Hoop material 20 Triangular spiral contactor 30 Electronic component 31 External contactor 40 Substrate 41 Through hole 42 First connection part θ Outer part and outer part Angle made by the part α Angle made by the long hole and the long hole

Claims (15)

A spiral contact having a frame portion provided on the outer peripheral side and a winding portion extending spirally from the frame portion toward the inner peripheral center,
The winding portion is formed by repeating a linear extension of the next contact side in a direction different from the one direction from the end of the contact side extending linearly in one direction. Spiral contactor.   The spiral contact according to claim 1, wherein a length dimension of each contact side is formed so as to become shorter from the frame portion toward the inner peripheral center.   The spiral contact according to claim 1 or 2, wherein a width dimension of each contact side is formed so as to become narrower from the frame part toward the inner peripheral center.   The spiral contact according to any one of claims 1 to 3, wherein a sandwiching angle θ between one adjacent contact side and the other contact side is formed in a range of 60 ° ≤ θ <180 °.   The spiral contact according to claim 4, wherein the included angles θ are all formed to have the same size.   The spiral contact according to any one of claims 1 to 5, wherein the wound portion is plastically deformed into a planar shape or a three-dimensional convex shape.   The spiral sheet according to any one of claims 1 to 6, wherein the spiral contact is connected via a hoop material.   The spiral sheet according to claim 7, wherein a frame portion of another spiral contact that is adjacent to the frame portion of one spiral contact is disposed in parallel. A method of manufacturing a spiral contact having a frame portion provided on the outer peripheral side and a winding portion in which a plurality of linearly extending contact sides are spirally connected, and includes the following (a) to (e) The spiral contactor manufacturing method is characterized by being formed in the process of
(A) forming a center hole in the metal plate;
(B) drilling a long hole protruding outward from the center hole;
(C) a step of drilling another long hole that intersects the long hole continuously to the end of the long hole;
(D) By repeating the step (c) sequentially, other long holes are continuously drilled outside the central hole or the long hole previously drilled to form a spiral wound portion. Process,
(E) forming a separation hole between adjacent winding parts and the winding part to form the frame part and a hoop material to which the frame part is connected; A method of manufacturing a spiral contact having a frame portion provided on the outer peripheral side and a winding portion in which a plurality of linearly extending contact sides are spirally connected, and includes the following (a) to (e) The spiral contactor manufacturing method is characterized in that it is formed in the process of
(A) a step of drilling a long hole in the metal plate;
(B) a step of making another long hole continuing to the end of the long hole crossing the long hole,
(C) by repeating the step (b) to continuously drill other long holes inside the previously drilled long holes to form a spiral wound portion;
(D) a step of forming a central hole continuous with the long hole formed on the innermost peripheral side;
(E) forming a separation hole between adjacent winding parts and the winding part to form the frame part and a hoop material to which the frame part is connected;   The method for manufacturing a spiral contact according to claim 9 or 10, wherein two or more elongated holes are formed simultaneously.   The method for manufacturing a spiral contact according to claim 9, wherein the elongated hole is formed by punching with a punch.   The manufacturing method of the spiral contactor in any one of Claim 9 thru | or 12 currently formed so that the length dimension of the said long hole may become so short that it goes to an inner peripheral side from an outer peripheral side.   The manufacturing method of the spiral contactor in any one of Claim 9 thru | or 13 with which the included angle (alpha) of one adjacent long hole and the other long hole is formed in the range of 60 degrees <= alpha <180 degrees.   The method of manufacturing a spiral contact according to claim 14, wherein the included angles α are all formed to have the same size.

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