Apparatus and method for the determination of positioning coordinates for semiconductor substrates
First Claim
1. An apparatus for the determination of positioning coordinates for at least one semiconductor substrate comprises:
- an acquisition means for digital images of the surface of the semiconductor substrate;
a computer system with a display on which the image of the surface of the semiconductor substrate is presented;
an input means with which a user marks at least one site of interest on the surface of the semiconductor substrate as shown on the display; and
a stage, displaceable in a X direction and a Y direction, that carries the semiconductor substrate and positions the semiconductor substrate with respect to a measuring machine in the at least one marked site.
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Accused Products
Abstract
An apparatus (2) and a method for the determination of positioning coordinates for at least one semiconductor substrate (6) are disclosed. A digital camera (11) for acquiring an image of the surface (4) of the semiconductor substrate (6) is provided. A computer system is provided, having a display (41) on which the image of the surface (4) of the semiconductor substrate (6) is presentable. By way of an input means (44), a user can mark at least one site (34) of interest on the surface (4) of the semiconductor substrate (6). A measuring machine (24) then automatically travels to the at least one defined site (34) and carries out the desired measurement or examination.
51 Citations
18 Claims
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1. An apparatus for the determination of positioning coordinates for at least one semiconductor substrate comprises:
- an acquisition means for digital images of the surface of the semiconductor substrate;
a computer system with a display on which the image of the surface of the semiconductor substrate is presented;
an input means with which a user marks at least one site of interest on the surface of the semiconductor substrate as shown on the display; and
a stage, displaceable in a X direction and a Y direction, that carries the semiconductor substrate and positions the semiconductor substrate with respect to a measuring machine in the at least one marked site. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 14, 15, 16)
- an acquisition means for digital images of the surface of the semiconductor substrate;
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9. A method for the determination of position coordinates for at least one semiconductor substrate using a digital camera, comprising the steps of:
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aligning the semiconductor substrate in order to obtain a correlation between the coordinates of the semiconductor substrate and of a measuring machine;
acquiring an image of the entire surface of the semiconductor substrate, presenting the image of the surface of the semiconductor substrate on a display;
marking by the user, via an input means, at least one site on the surface of the semiconductor substrate; and
transferring a displaceable stage of a measuring machine and thereby positioning of the measuring machine at the at least one marked site on the surface of the semiconductor substrate;
whereby the stage is moved successively to the at least one marked site in order to carry out the specific measurement there. - View Dependent Claims (10, 11, 12, 13, 18)
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17. The method as defined in claim 27, wherein at “
- High Mag,”
the surface of the wafer (32) of the semiconductor substrate is imaged over an area of 0.24 mm×
0.32 mm.
- High Mag,”
Specification