Method and apparatus for inspecting solid-state image pick-up device
View Patent ↗Provided is a method for inspecting a solid-state image pickup device by irradiating a solid-state image pickup device with measuring light emitted from a light source. The light source is a surface light emitter that includes a plurality of pixels, and each of the plurality of pixels includes a combination of a red LED, a green LED and a blue LED.
1. A method for inspecting a solid-state image pickup device by irradiating the solid-state image pickup device with measuring light emitted from a light source,
wherein the light source is a surface light emitter comprising a plurality of pixels each including a combination of a red light emitting diode (LED), a green LED and a blue LED, and
wherein the measuring light is uniform light of an arbitrary color which is a combination of red light, green light and blue light emitted from the red LED, the green LED and the blue LED, respectively.
2. The method for inspecting a solid-state image pickup device according to claim 1 ,
wherein the surface light emitter comprises an organic electroluminescence (EL) device.
3. The method for inspecting a solid-state image pickup device according to claim 1 ,
wherein a probe card having a center through hole in its center and having probe pins to be abutted against an electrode pad of the solid-state image pickup device is provided, and
the light source is provided integrally with the probe card so as to be located above the center through hole of the probe card.
4. The method for inspecting a solid-state image pickup device according to claim 1 ,
wherein the solid-state image pickup device is a solid-state image pickup device package,
the solid-state image pickup device package is attached to a socket, and
the surface light emitter is provided in a lid body which is arranged above the socket and opens and closes an area above the socket.
5. An apparatus for inspecting a solid-state image pickup device by irradiating the solid-state image pickup device with measuring light emitted from a light source, the apparatus comprising
a surface light emitter comprising a plurality of pixels each including a combination of a red light emitting diode (LED), a green LED and a blue LED, as the light source,
wherein the measuring light is uniform light of an arbitrary color which is a combination of red light, green light and blue light emitted from the red LED, the green LED and the blue LED, respectively.
6. The apparatus for inspecting a solid-state image pickup device according to claim 5 ,
wherein the surface light emitter comprises an organic electroluminescence (EL) device.
7. The apparatus for inspecting a solid-state image pickup device according to claim 5 , further comprising:
a probe card having a center through hole in its center and having probe pins to be abutted against an electrode pad of the solid-state image pickup device,
wherein the light source is provided integrally with the probe card so as to be located above the center through hole of the probe card.
8. The apparatus for inspecting a solid-state image pickup device according to claim 5 , further comprising:
a socket on which a solid-state image pickup device package serving as the solid-state image pickup device is to be attached; and
a lid body which is arranged above the socket and opens and closes an area above the socket,
wherein the surface light emitter is provided in the lid body.
9. The method for inspecting a solid-state image pickup device according to claim 1 , wherein the measuring light is not scattered by a scattering element facing the surface light emitter, before the measuring light is irradiated on the solid-state image pickup device.
10. The apparatus for inspecting a solid-state image pickup device according to claim 5 , wherein the apparatus does not include a scattering element facing the surface light emitter to scatter the measuring light before the measuring light is irradiated on the solid-state image pickup device.
11. The apparatus for inspecting a solid-state image pickup device according to claim 5 , further comprising a condensing lens, wherein no optical element intervenes between the surface light emitter and the condensing lens.
12. The method for inspecting a solid-state image pickup device according to claim 1 , further comprising:
controlling a voltage and a voltage pulse to control light quantity of each of the red light, the green light and the blue light,
wherein the uniform light of the arbitrary color is emitted based on the controlled light quantity of each of the red light, the green light and the blue light.
13. The apparatus for inspecting a solid-state image pickup device according to claim 5 , further comprising:
a tester that controls a voltage and a voltage pulse to control light quantity of each of the red light, the green light and the blue light,
wherein the uniform light of the arbitrary color is emitted based on the controlled light quantity of each of the red light, the green light and the blue light.