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Probe card device and fence-like probe thereof

a technology of probe card and probe, which is applied in the field of electrically conductive probes, can solve problems such as compact circuits

Active Publication Date: 2022-01-20
CHUNGHWA PRECISION TEST TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a probe card device with a fence-like probe that addresses the issues with conventional electrically conductive probes. The fence-like probes have a structure design that allows for a longer distance between the fixing points, improving manufacturing cost and efficiency. The stroke segment of the fence-like probes is formed with penetrating slots arranged along the fan-out direction, reducing the length of each fence-like probe. This helps in improving the overall functionality of the probe card device.

Problems solved by technology

Due to the structural design of the conventional electrically conductive probe, a space transformer arranged between a circuit board and conventional electrically conductive probes needs to have complex and compact circuits design for transmitting signals between the circuit board and the conventional electrically conductive probes.

Method used

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  • Probe card device and fence-like probe thereof
  • Probe card device and fence-like probe thereof
  • Probe card device and fence-like probe thereof

Examples

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Effect test

first embodiment

[0025]Referring to FIG. 1 to FIG. 8, a first embodiment of the present disclosure provides a probe card device 1000. As shown in FIG. 1, the probe card device 1000 includes a probe head 100 and a circuit board 200 that is abutted against (or fixed to) one side of the probe head 100 (e.g., the top side of the probe head 100 shown in FIG. 1), and another side of the probe head 100 (e.g., the bottom side of the probe head 100 shown in FIG. 1) is configured to abut against and test a device under test (DUT) that can be a semiconductor wafer (not shown in the drawings). In other words, the probe card device 1000 in the present embodiment does not have any space transformer arranged between the probe head 100 and the circuit board 200, and the probe head 100 is directly connected to (or fixed onto) the circuit board 200.

[0026]It should be noted that in order to clearly describe the structure and connection relationship of each component of the probe card device 1000, the drawings of the p...

second embodiment

[0046]Referring to FIG. 9, a second embodiment of the present disclosure is similar to the first embodiment of the present disclosure. For the sake of brevity, descriptions of the same components in the first and second embodiments of the present disclosure will be omitted herein, and the following description only discloses different features between the first and second embodiments.

[0047]In the present embodiment, the probe card device 1000 further includes a space transformer 300 that connects the circuit board 200 and the fence-like probes 4. Each of the fence-like probes 4 is fixed onto the space transformer 300 through the fixing point 424 thereof. In other words, the fence-like probes 4 in the present embodiment are electrically coupled to the circuit board 200 through the space transformer 300.

[0048]Accordingly, by the structural design of each of the fence-like probes 4 (e.g., the fixing point 424 and the abutting point 431 are spaced apart from each other by the fan-out di...

third embodiment

[0049]Referring to FIG. 10, a third embodiment of the present disclosure is similar to the first and second embodiments of the present disclosure. For the sake of brevity, descriptions of the same components in the first to third embodiments of the present disclosure will be omitted herein, and the following description only discloses different features between the third embodiment and the first and second embodiments.

[0050]In the present embodiment, the fan-out distances FD of the fence-like probes 4 include at least two different values. In other words, the probe head 100 is provided with the fence-like probes 4 having the fan-out distances FD of different values, thereby satisfying different design requirements and allowing the fixing points 424 of the fence-like probes 4 to be directly fixed onto a circuit board (not shown in FIG. 10). In other words, the fence-like probes 4 in the present embodiment can be formed to have the fan-out distances FD of different values so as to rep...

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Abstract

A probe card device and a fence-like probe thereof are provided. The fence-like probe includes a stroke segment, a fan-out segment, and a testing segment. The stroke segment is in an elongated shape defining a longitudinal direction, and the stroke segment has two end portions and a plurality of penetrating slots that are arranged along a fan-out direction perpendicular to the longitudinal direction, so that the stroke segment is deformable to store an elastic force by being applied with a force. The fan-out segment and the testing segment are respectively connected to the two end portions of the stroke segment. The fan-out segment has a fixing point arranged away from the stroke segment, and the testing segment has an abutting point arranged away from the stroke segment. Along the fan-out direction, the fixing point is spaced apart from the abutting point by a fan-out distance.

Description

CROSS-REFERENCE TO RELATED PATENT APPLICATION[0001]This application claims the benefit of priority to Taiwan Patent Application No. 109123884, filed on Jul. 15, 2020. The entire content of the above identified application is incorporated herein by reference.[0002]Some references, which may include patents, patent applications and various publications, may be cited and discussed in the description of this disclosure. The citation and / or discussion of such references is provided merely to clarify the description of the present disclosure and is not an admission that any such reference is “prior art” to the disclosure described herein. All references cited and discussed in this specification are incorporated herein by reference in their entireties and to the same extent as if each reference was individually incorporated by reference.FIELD OF THE DISCLOSURE[0003]The present disclosure relates to an electrically conductive probe, and more particularly to a probe card device and a fence-l...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G01R1/073
CPCG01R1/07328G01R1/07314
Inventor LEE, WEN-TSUNGWEI, HSUN-TAIHSIEH, KAI-CHIEHSU, WEI-JHIH
Owner CHUNGHWA PRECISION TEST TECH