Mini-prober for TFT-LCD testing
First Claim
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1. A prober assembly adapted to test a large area substrate, comprising:
- a rectangular frame having a lateral member extending along the width of the frame with a length that is equal to or less than half of the length of the large area substrate and a longitudinal member extending along the length of the frame with a length that is equal to or greater than the width of the large area substrate;
a plurality of prober pins extending from a lower surface of the frame along the length of the lateral and longitudinal members and adapted to contact the large area substrate; and
a prober support member having a linear drive configured to laterally move the rectangular frame with respect to the substrate.
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Abstract
An apparatus and method for testing large area substrates is described. The large area substrates include patterns of displays and contact points electrically coupled to the displays. The apparatus includes a prober assembly that is movable relative to the large area substrate and may be configured to test various patterns of displays and contact points. The prober assembly is also configured to test fractional sections of the large area substrate. The apparatus also includes a test chamber configured to store at least two prober assemblies within an interior volume.
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Citations
19 Claims
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1. A prober assembly adapted to test a large area substrate, comprising:
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a rectangular frame having a lateral member extending along the width of the frame with a length that is equal to or less than half of the length of the large area substrate and a longitudinal member extending along the length of the frame with a length that is equal to or greater than the width of the large area substrate; a plurality of prober pins extending from a lower surface of the frame along the length of the lateral and longitudinal members and adapted to contact the large area substrate; and a prober support member having a linear drive configured to laterally move the rectangular frame with respect to the substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A prober assembly adapted to test a large area substrate, comprising:
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a rectangular frame with a rectangular aperture formed therethrough and a cross-member extending across the aperture; a plurality of contact heads coupled to the cross-member and adapted to contact the large area substrate, wherein the rectangular frame comprises an area that is equal to or less than half of the area of the large area substrate; and a prober support member having a linear drive configured to laterally move the rectangular frame with respect to the substrate. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A test system, comprising:
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a testing table sized to receive a rectangular substrate; and a prober assembly adapted to contact the substrate, wherein the prober assembly comprises; a rectangular frame having a lateral member and a longitudinal member; and a plurality of prober pins extending from a lower surface of the frame along the length of the lateral member and along the length of the longitudinal member and adapted to contact the substrate, wherein the rectangular frame comprises an area that is equal to or less than half of the area of the substrate and is movable by at least two motors along a length of the testing table. - View Dependent Claims (18, 19)
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Specification