Patent ID: 7564253

Claim:
A temperature characteristic inspection device comprising: an inspection stage for sustaining a light emitting device chip or a light receiving device chip; a cooling device for cooling the inspection stage; a coolant supplying/exhausting device having a coolant inlet tube for introducing a liquid coolant and a coolant outlet tube for exhausting warmed liquid coolant for cooling the cooling device; a shield casing encapsulating the inspection stage, the cooling device, a part of the coolant inlet tube and a part of the coolant outlet tube joining the cooling device; a dry-air chamber following a rear of the shield casing for introducing and accommodating dry air temporarily; a dry-air path produced in the shield casing; a dry-air rectifying plate fitted on a front of the dry-air chamber for supplying the dry-air path in the shield casing with a laminar flow of dry air from the dry-air chamber; an opening perforated at a front upper part of the shield casing for exhausting dry air and for allowing the chip to go in or go out therethrough; a collet for fetching an unexamined chip onto the inspection stage and for taking an examined chip off from the inspection stage via the opening; a probe for coming via the opening in contact with an electrode of the unexamined chip to supply a current or a voltage to the chip; and a photocharacteristic examining device for detecting light emitted from the chip or irradiating the chip with a test beam and measuring a photocurrent induced; wherein the dry-air path has a section having a shape and a size identical to a shape and a size of the dry-air rectifying plate, the opening has a section smaller than the section of the dry-air path, photocharacteristics of the light emitting device chips or the light receiving device chips are examined by chucking the chip by the collet, conveying the chip via the opening into the shield casing, laying the chip on the inspection stage, bringing the probe into contact with an electrode of the chip, blowing cool dry air to the chip, examining photocharacteristics of the chip, chucking the chip by the collet and taking the chip off by the collet from the inspection stage via the opening.