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Conductive contact and method for manufacturing conductive contact

A manufacturing method and a conductive technology, applied in the field of conductive contacts, can solve the problems of time-consuming design, unreliable dislocation, uniform electrode load on difficult circuit substrates, etc., and achieve high precision, reliability, and high electrical characteristics inspection. Effect

Inactive Publication Date: 2008-09-03
NHK SPRING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

but Figure 24 In the structure shown, since the central axes of the holes provided in the plates are shifted, the design of the hole machining positions becomes complicated and time-consuming for the design.
In addition, there are machining errors in the machining of each plate hole, and it is unreliable whether the holes are completely dislocated in a stepped manner during stacking
Therefore, with respect to the existing conductive contact assembly, it is difficult to make the load on the electrodes of the circuit board of each conductive contact uniform, and it is also difficult to make the contact resistance of each contact part uniform, and there may be a problem in the electrical characteristics. Problems arise in checking the accuracy of itself

Method used

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  • Conductive contact and method for manufacturing conductive contact
  • Conductive contact and method for manufacturing conductive contact
  • Conductive contact and method for manufacturing conductive contact

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Experimental program
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Effect test

Embodiment approach 1

[0078] FIG. 1 is a perspective view showing the configuration of a conductive contact according to Embodiment 1 of the present invention. In addition, FIG. 2 is a top view of FIG. 1 seen from the arrow A direction. Furthermore, FIG. 3 is a sectional view taken along line B-B in FIG. 2 . The conductive contact 1 shown in these figures is a so-called metal wire probe type contact, which includes: a main body 11 having a flat plate shape with both ends sharpened (sharpened) into a V shape; The insulating layer 12 is formed to cover the surface of the main body 11 near the center except for both ends of the main body 11 . A section (cross section) in a direction perpendicular to the longitudinal direction of the main body portion 11 is also rectangular as shown in FIG. 3 . In addition, the cross-section of the entire conductive contact 1 with the insulating layer 12 added is substantially elliptical. Therefore, the cross-sectional shape of the conductive contact 1 in the direct...

Embodiment approach 2

[0099] 15 is a perspective view showing the configuration of a conductive contact according to Embodiment 2 of the present invention. The conductive contact 6 shown in this figure includes: a flat main body 61 with both ends sharpened into a V shape; 62. The cross section of the conductive contact 6 perpendicular to the longitudinal direction of the main body 61 also has anisotropy. Therefore, as in the above-mentioned first embodiment, as long as the plurality of conductive contacts 6 are attached to the conductive contact assembly 200 and biased, the bending directions of the plurality of conductive contacts 6 can also be aligned.

[0100] The main body portion 61 and the lamination portion 62 are made of different metals. For example, if metals such as iron (Fe), nickel (Ni), or tungsten (W) are used for the main body 61 with excellent wear resistance, on the other hand, metals such as copper (Cu) or silver with low resistance are used for the laminated portion 62 . (Ag)...

Embodiment approach 3

[0113] Embodiment 3 of the present invention is to provide a method for simultaneously and mass-producing conductive contacts having a main body having an anisotropic cross-section perpendicular to the longitudinal direction and an insulating layer covering the central portion of the main body. A preferred method of making conductive contacts.

[0114] In the manufacturing method of the conductive contact according to Embodiment 3, first, by using plating, etching (including wet etching, dry etching), electroforming, and lithography (including X-ray lithography, ultraviolet ray lithography) Technology), electric discharge machining (including metal wire electric discharge machining) and other processing technologies to form the main body group of the main body with a plurality of conductive contacts (forming process). Figure 19 It is a figure showing the structure of the main body part group molded by this molding process, and FIG. 20 is a partial enlarged perspective view wh...

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PUM

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Abstract

A conductive contact enabling electrical characteristic inspection with high accuracy and with high reliability by easily controlling the direction of deflection when an external force is exerted and a conductive contact manufacturing method. The contact is used for setting up an electrical connection by physical contact with one of connection terminals of a circuit structure. The cross section perpendicular to the longitudinal direction of the body of the conductive contact is of an anisotropic shape with respect to the circuit structure. An insulating layer covering an area including the longitudinal central portion of the body and not including the end portions of the body may be formed.

Description

technical field [0001] The present invention relates to a conductive contact for establishing electrical connection by physically contacting a circuit structure including a plurality of connection terminals with the connection terminal, and a method for manufacturing the conductive contact. Background technique [0002] At present, when performing electrical characteristic inspection of a circuit structure with a plurality of connection terminals, as a conductive contact that establishes an electrical connection with the inspection device through physical contact with the above-mentioned connection terminals, it is known that a circular contact is formed. Cross-sectional shape of the metal wire probe type contact. When attaching the plurality of probe-type conductive contacts to the conductive contact assembly, when external force acts on the main body of the conductive contacts, various methods have been conceived in order to align the direction of bending ( For example, r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R1/067G01R1/073
CPCG01R1/06716G01R1/06738G01R1/06761G01R1/07357G01R1/0675G01R3/00Y10T29/49204G01R1/067G01R1/073H01L22/00
Inventor 风间俊男石川重树
Owner NHK SPRING CO LTD