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Double-coating probe

A double-coating and probe technology is applied in the direction of measuring devices, instruments, and measuring electronics. It can solve the problems of easy discharge of probes and poor control of probe depth, so as to reduce production costs, improve test reliability, The effect of improving productivity

Pending Publication Date: 2021-04-16
珠海拓优电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a double-coated probe, which solves the problem of easy discharge between two probes that are very close to each other in the prior art, and at the same time overcomes the propelling depth of the probe. Defects that are not well controlled

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] refer to Figure 1 to Figure 3 , Embodiment 1 provides a double-coated probe, including a main body 1, the main body 1 itself has electrical conductivity, the first end along the extending direction of the main body 1 is the test end 2, the second end is the connecting end 3, the main body 1 The outer surface is provided with a first insulating coating 11 and a second insulating coating 12, and there is a height difference between the first insulating coating 11 and the second insulating coating 12 at the test end 2, and the test end 2 includes a first exposed head 21, The connection end 3 includes a second exposed head 31 , both of the first exposed head 21 and the second exposed head 31 are beyond the coverage of the first insulating coating 11 .

[0028] It should be noted that, except for the first exposed head 21 and the second exposed head 31, the rest of the main body 1 of the probe is covered with the first insulating coating 11, and then on the basis of the fir...

Embodiment 2

[0035] In the first preferred mode, that is, the first insulating coating 11 covers the outer surface of the main body 1, and the second insulating coating 12 covers the outer surface of the first insulating coating 11. For the first insulating coating 11 and the thickness of the second insulating coating 12 and the length of the main body 1 all have a most cost-effective value range, wherein when the thickness of the first insulating coating 11 ranges between 0.001 and 0.005mm, the second insulating coating The thickness of 12 is in the range of 0.005-0.009mm, the length of the main body 1 is in the range of 10-40mm, the exposed length of the first exposed head is in the range of 0.05-0.5mm, and the exposed length of the second exposed head is in the range of 0.05mm. Between ~0.5mm, the effect is better.

[0036] refer to Figure 4 , in this embodiment, in order to achieve the best effect, the length of the main body 1 is 30mm, the thickness of the first insulating coating 1...

Embodiment 3

[0039] For the complete manufacturing process of double-coated probes, the following steps can be followed:

[0040] The probe bar is straightened, and the bar of suitable length is cut out;

[0041] Grind both ends of the bar into a specified shape, and check the overall appearance and shape of the probe;

[0042] The whole probe is nickel-plated first, then gold-plated or rhodium-plated;

[0043] First coat the first insulating coating 11 on the end of the probe, and then coat the second insulating coating 12 on the probe needle body;

[0044] Finally, check the manufacturing situation and complete the production.

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Abstract

The invention provides a double-coating probe. The probe comprises a main body, a first end part along the extending direction of the main body is a test end, a second end part is a connecting end, the outer surface of the main body is provided with a first insulating coating and a second insulating coating, the first insulating coating and the second insulating coating have a height difference at the test end, and the first insulating coating and the second insulating coating have a height difference at the connecting end. The test end comprises a first exposed head, the connecting end comprises a second exposed head, and the first exposed head and the second exposed head both exceed the coverage range of the first insulating coating. The first insulating coating and the second insulating coating are arranged on the outer surface of the main body, and a height difference exists between the first insulating coating and the second insulating coating in the direction of the test end, so that the propulsion depth is convenient to control, the possibility of probe discharge in the test process is limited, the test reliability of the probe is improved, and the probe is directly replaced without replacing jigs when the jig is burnt out, so the production cost is reduced, and the production efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of electronic equipment testing, in particular to a double-coated probe. Background technique [0002] In the field of testing integrated circuits of electronic equipment, it is necessary to fix the probes on the fixture, and then control the fixture to make the probes contact the integrated circuits multiple times, wherein the test end of the probe is in contact with the integrated circuit, and the connecting end of the probe is in contact with the integrated circuit. In contact with the enameled wire of the fixture, the middle of the probes is coated with an insulating layer, and the distance between the probes is even less than 0.03mm, and the gap between them is very small. [0003] Therefore, in the normal test process, since the distance between adjacent probes is very small, and the test end of the probe includes a bare part, in order to facilitate contact with the integrated circuit, when the probe i...

Claims

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Application Information

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IPC IPC(8): G01R1/067
Inventor 刘胜丽
Owner 珠海拓优电子有限公司