发明名称 |
Method and apparatus for aligning and/or leveling a test head |
摘要 |
One embodiment of the present invention is a method for aligning a first workpiece to a second work piece that includes: (a) placing the first workpiece on an alignment apparatus including: (i) two or more fluid chambers disposed in fixed relation to each other, the chambers having a movable wall and one or more apertures for admitting or releasing fluid; (ii) fluid channels coupled to the one or more apertures that enable fluid to flow between at least two of the fluid chambers; and (iii) one or more valves disposed to enable or to stop the flow of fluid through one or more of the one or more fluid channels; (b) pumping incompressible fluid into the fluid chambers; (c) opening the one or more valves; (d) bringing the first and second workpieces into contact; (e) waiting a predetermined time for fluid flow in the fluid channels; (f) determining whether the first and second workpieces are aligned; (g) if they are aligned, shutting the valves; and (h) if they are not aligned, moving the second workpiece a predetermined amount in a predetermined direction, and returning to waiting.
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申请公布号 |
US8348252(B2) |
申请公布日期 |
2013.01.08 |
申请号 |
US20100797477 |
申请日期 |
2010.06.09 |
申请人 |
CENTIPEDE SYSTEMS, INC.;DI STEFANO THOMAS H.;DI STEFANO PETER T. |
发明人 |
DI STEFANO THOMAS H.;DI STEFANO PETER T. |
分类号 |
B23Q3/18;G01M99/00;G01R31/00 |
主分类号 |
B23Q3/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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