Method and apparatus for correcting electric-component-mount position
US6591219B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 14, 2000 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Jul 24, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K13/0815
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of determining, according to a dimensional and/or positional error of an actual board, an actual mounting position where a component is to be mounted on the actual board, on a coordinate system defined by a first and a second axis, including the steps of obtaining a relative position of an ideal mounting position, relative to four ideal reference-point positions, as four division ratios in which four ideal sides of a quadrilateral defined by the four ideal reference points are divided by two first division points where a first ideal line parallel to the first axis and passing through the ideal mounting position intersects two first ideal sides of the quadrilateral, and two second division points where a second ideal line parallel to the second axis and passing through the ideal mounting position intersects two second ideal sides of the quadrilateral, detecting four actual reference-point positions on the actual board, calculating four actual division-point positions which respectively divide, in the four division ratios, four actual sides of a quadrilateral defined by the four actual reference-point positions, and calculating the actual mounting position where a first actu…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.