Process for determining the position and/or checking the separation and/or checking the coplanarity of the leads of components
AssigneeSiemens Aktiengesellschaft
InventorGunter Doemens
Life of this patent
Estimating the term…
Abstract
In order to determine the position and/or to check the separation of the leads (A) of components (B), a direct shadow of the region of the leads at one side of the component is generated on the photosensitive surface of a local resolution optoelectronic transducer (W4). If in each case one shadow is generated successively from two different directions, the coplanarity of the leads (A) may also be checked. Preferably, the local resolution optoelectronic transducer (W4) and the light sources for casting the shadow are directly secured to the equipping head (BK4). By integrating the determination system into the equipping head, the lead position can be determined and the separation and coplanarity of the leads can be checked without delay.
Claims19
A process for determining the position and/or checking the separation and/or checking the coplanarity of the leads (A) of components (B), which are removed from a predetermined removal position of a component preparation device by means of a equipping head (BK2;
- BK3;
- BK4) and are positioned in a predetermined position on a printed circuit board (LP) or a ceramic substrate, characterized in that in each case one direct shadow of the region of the leads at one side of the component is generated successively by illumination from two different directions on the photosensitive surface of a local resolution optoelectronic transducer (W2;
- W3;
- W4) fitted to the planting head (BK2;
- BK3;
- BK4), and in that the spatial position of the leads (A) is computed from the differing position of corresponding shadow edges of the leads (A) on the optoelectronic transducer (W2;
- W3;
- W4).
A process for determining the position and/or checking separation and/or checking coplanarity of leads of a component, comprising the steps of:
- illuminating the leads at one side of the component successively from two different directions;
- generating in each case one direct shadow of a region of the leads at the one side of the component on the photosensitive surface of a local resolution optoelectronic transducer;
- and
- computing a spatial position of the leads from differing positions of corresponding shadow edges of the leads on the optoelectronic transducer.
Dependencies are inferred from the claim text.