Claims
- 1. A method for obtaining electronic images with a single imager of a substrate location and a component to be placed on the substrate location, said method comprising:
placing the component above the substrate location; interposing a movable imager body between the substrate location and the component, the imager body including a moveable reflector; moving the reflector to reflect an image from the component into the imager; capturing the image of the component; moving the reflector to reflect an image from the substrate location into the imager; capturing the image of the substrate location; and retracting the imager body from between the substrate location and the component.
- 2. A method for accurately placing a component on a substrate location, said method comprising:
picking the component; transporting the component to a location above the substrate location; interposing a movable imager body between the substrate location and the component, the imager body including a moveable reflector; moving the reflector to reflect an image from the component into the imager; capturing the image of the component; moving the reflector to reflect an image from the substrate location into the imager; capturing the image of the substrate location; retracting the imager body from between the substrate location and the component; and placing the component on the substrate location.
- 3. An apparatus for obtaining electronic images with a single imager of a substrate location and a component to be placed on the substrate location, said apparatus comprising:
means for placing the component above the substrate location; means for interposing a movable imager body between the substrate location and the component, the imager body including a moveable reflector; means for moving the reflector to reflect an image from the component into the imager; means for capturing the image of the component; means for moving the reflector to reflect an image from the substrate location into the imager; means for capturing the image of the substrate location; and means for retracting the imager body from between the substrate location and the component.
- 4. An apparatus for accurately placing a component on a substrate location, said apparatus comprising:
means for picking the component; means for transporting the component to a location above the substrate location; means for interposing a movable imager body between the substrate location and the component, the imager body including a moveable reflector; means for moving the reflector to reflect an image from the component into the imager; means for capturing the image of the component; means for moving the reflector to reflect an image from the substrate location into the imager; means for capturing the image of the substrate location; means for retracting the imager body from between the substrate location and the component; and means for placing the component on the substrate location.
- 5. A single camera system using up/down optics for component to substrate registration, said system comprising:
a placement machine; a pick-up head transportable in X, Y, Z and T directions, the pick-up head for picking up a component to be placed at a selected location of the substrate; an imager body including an imaging sensor mounted to the placement machine so that it can be disposed between a component held by the pick-up head and the selected location of the substrate and then withdrawn; and a moveable reflector disposed on the imager body, the moveable reflector moveable between a position where an image of the component disposed above the imager body is reflected into the imaging sensor and a position where an image of the selected location of the substrate is reflected into the imaging sensor.
- 6. A single camera system in accordance with claim 5, wherein said imaging sensor comprises an area array-type imager.
- 7. A single camera system in accordance with claim 5, wherein said imaging sensor comprises a linear array-type imager.
- 8. A single camera system in accordance with claim 5, wherein said reflector is rotateable.
- 9. A single camera system in accordance with claim 8, wherein said reflector rotates in a range of about 45 degrees to about 225 degrees.
- 10. A single camera system in accordance with claim 9, wherein said reflector comprises a mirror having a reflective front surface.
RELATED APPLICATIONS
[0001] This application claims the benefit of provisional U.S. patent application Ser. No. 60/188,359 filed on Mar. 10, 2000 in the names of Edison T. Hudson and Ernest H. Fischer and commonly assigned herewith.
Provisional Applications (1)
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Number |
Date |
Country |
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60188359 |
Mar 2000 |
US |