Patent №
US 6,017,133
Granted
2000-01-25
Filed 1997
Owner
SIEMENS AKTIENGESELLSCHAFT
+2 more
Lab
—
AI components
1
vision
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
08860515
The device for recognizing the position of the terminals (A) of components (BE) whose optical unwanted structures proceed in two principal directions (X, Y) has an image transducer (BW) equipped with an objective (O); and at least one segmented ring light illumination (RB; RB1, RB2) whose rays (S; S1, S2) are incident onto the surface of the components (BE) from all sides upon exclusion of angular segments (WS) around the principal directions (X, Y). By suppressing the light directions incident perpendicular and parallel to the unwanted structures, the terminals (A) are presented with clearly higher contrast than the other structures of the components (BE). The device is particularly utilized in components vision systems of automatic equipping units. It enables a reliably recognition of the position of the spherical terminals even given flip chips, bare chips and ball grid arrays and, thus, an exact optoelectronic centering of these components.
AI classification
Ownership
SIEMENS AKTIENGESELLSCHAFT
assignment · 88280045
SIEMENS ELECTRONICS ASSEMBLY SYSTEMS GMBH & CO. KG
assignment · 229510001
ASM ASSEMBLY SYSTEMS GMBH & CO. KG
namechg · 260260550
Assignors
GRASMUELLER, HANS HORST, WITTMANN, GUENTHER
On an employer assignment, the assignors are typically the inventors.