Title:
APPARATUS FOR DETECTING POSITION OF PART
Document Type and Number:
Japanese Patent JP3411354
Kind Code:
B2
Abstract:
PURPOSE: To detect accurately the position of a part, wherein many pins are arranged, even if the size and the shape of the part, the width of the pin and the interval between the pins are different.
CONSTITUTION: The transmitted light or the reflected light at the pin part of a semiconductor chip 10 when light from a lamp 12 is cast on the semiconductor chip 10 wherein many pins are arranged, is received by a CCD camera 14. The position of the semiconductor chip 10 is detected based on the received signal. In this part-position detecting apparatus, an illuminance switching device 24, which adjusts the illuminance of the illuminated light in correspondence with the size and the shape of the semiconductor ship, the width of the pin and the interval of the pins, is provided.
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Inventors:
Masato Ozawa
Application Number:
JP32076893A
Publication Date:
May 26, 2003
Filing Date:
December 21, 1993
Export Citation:
Assignee:
Juki Corporation
International Classes:
G01B11/00; H05K13/04; (IPC1-7): G01B11/00; H05K13/04
Domestic Patent References:
| JP4364404A | ||||
| JP2171602A |
Attorney, Agent or Firm:
Satoshi Takaya (2 outside)