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US 8,009,896 B2Granted
Coplanarity inspection device for printed circuit boards
AssigneeKing Yuan Electronics Co., Ltd.
InventorChiu-Fang Chang
Life of this patent
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AssigneeKing Yuan Electronics Co., Ltd.
InventorChiu-Fang Chang
Estimating the term…
A coplanarity inspection device for a printed circuit board includes a base, a supporting disk, a driver, a printed circuit board, a light source, an image acquisition means, and a controller. The supporting disk is arranged on the base, and the driver rotates the supporting disk. The printed circuit board is placed on the supporting disk, and includes a to-be measured side facing downward. The light source projects light beams on the to-be measured side of the printed circuit board. The image acquisition means aims at a specific area of the to-be measured side for image acquisition. The controller is to control the driver, and to store image taken by the image acquisition means. As such, the coplanarity inspection device for a printed circuit board can be employed to inspect whether the coplanarity of the printed circuit board satisfies the standard of setting values in a certain range.
A coplanarity inspection device for a printed circuit board, comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
For measuring roughness or irregularity of surfaces: for measuring evenness
Measuring length, thickness or similar linear dimensions
About 3 years 8 months of term left · ends 26 Jun 2030 (estimated)
1. Field of the Invention
The present invention relates to a probe card coplanarity inspection tool, and more particularly, to a coplanarity inspection device adapted for printed circuit boards, with such a mechanism the manner using a round probe card for inspecting the flatness of printed circuit boards can be standardized.
2. Description of Related Art
FIG. 1 is a perspective view illustrating a coplanarity inspection device according to the present invention;
FIG. 2 is a schematic view illustrating an alignment kit of the coplanarity inspection device according to the present invention; and
FIG. 3 is a schematic view illustrating performance of a coplanarity inspection device according to the present invention.
Referring to FIG. 1, a coplanarity inspection device for a printed circuit board comprises a base 1, a supporting disk 11, a driver 2, a printed circuit board 12, a light source 5, an image acquisition means 3, and a controller 4.
In the present invention, the base 1 refers to a circular base, and the printed circuit board 12 to a circular printed circuit board 12. The supporting disk 11 is slidably arranged on the base 1, and is provided with a tooth-ring 111 around external circumference of the supporting disk 11, where a plurality of rollers 112 are pivotally disposed underneath the supporting disk 11. A supporting ring 113 is provided around internal circumference of the supporting disk 11, and that the printed circuit board 12 is placed on the supporting ring 113 so as to be positioned on the supporting disk 11.
The driver 2 includes a tooth-disk 21 and a motor 22, where the tooth-disk 21 is fixed to the motor 22. The tooth-disk 21 of the driver 2 is engaged with the tooth-ring 111 of the supporting disk 11, so that the supporting disk 11 can be driven by the motor 22 for rotation. The printed circuit board 12 is placed on the supporting disk 11, where the printed circuit board 12 has a to-be measured side 121 facing toward downside of the supporting disk 11.