Patent ID: 7595089

Claim:
A vapor deposition method for semiconductor laser bars, the method comprising: preparing a clamping jig for mounting semiconductor laser bars, the clamping jig comprising: a plurality of supporting bars each of which has a pair of laser-bar supporting faces respectively provided on both the front and back sides thereof and extending in a longitudinal direction; a supporting frame including a contact portion defined by a side of the supporting frame in contact with one of the supporting faces of an adjacent one of the supporting bars, a supporting wall portion defined by a side of the supporting frame facing the contact portion, and a fixing portion defined by sides of the supporting frame and having faces opposing each other; a first support plate directly fixed to the face of the fixing portion and having a mounting face on which the supporting bars are mounted so as not to protrude from the mounting face; a second support plate having the same structure as that of the first support plate and directly fixed to the opposite-side face of the fixing portion; a pressing cover member including two bar-shaped plate members that are directly fixed to the either face of the fixing portion so that the laser bars mounted on the mounting face of the first support plate are covered at both ends by the pressing cover member; and a pressing member in the supporting wall portion and having a spring screw supported by the supporting wall portion, the pressing member pressing the laser-bar supporting faces of the supporting bars by the spring screw, a first step in which the first support plate is directly fixed to a face of the fixing portion of the supporting frame, the supporting bars and the laser bars are directly mounted and alternately arranged on the mounting face of the first support plate so that each of respective pairs of the supporting bars clamp a laser bar therebetween, the laser-bar supporting faces of the supporting bars are pressed by the pressing member, the pressing cover member is fixed to the opposite-side face of the fixing portion, and one-side end faces of the laser bars protrude beyond the supporting bars and are exposed for vapor deposition processing; a second step in which the first support plate is directly fixed to a face of the fixing portion, the second support plate is directly fixed to the opposite-side face of the fixing portion, and the laser bars and the supporting bars are in a space surrounded by the first and second support plates and the supporting frame, and the top and bottom are reversed; and a third step in which the pressing cover member is directly fixed to the face of the fixing portion to which the first support plate was fixed in the first step, the second support plate is directly fixed to the opposite-side face of the fixing portion, and the other-side end faces of the laser bars protrude beyond the supporting bars and are exposed for vapor deposition processing.