Coherent light generators – Particular temperature control – Heat sink
Reexamination Certificate
2005-08-23
2005-08-23
Ip, Paul (Department: 2828)
Coherent light generators
Particular temperature control
Heat sink
C372S034000
Reexamination Certificate
active
06934309
ABSTRACT:
A two-dimensional LD (laser diode) array light-emitting device constituted by stacking light-emitting units each having a LD bar and a cooling assembly for cooling the LD bar with a simplified electrical connection structure to reduce manufacturing cost. The cooling assembly is electrically connected with one electrode of the LD bar through the die spacer so that a part of the cooling assembly serves as one electrode of the light-emitting unit. The other electrode of the LD bar is electrically connected with a webbed extending section of a conductive layer of a TAB (tape-automated bonding) sheet so that the conductive layer serves as the other electrode of the light-emitting unit. A space between the adjacent cooling assemblies for arranging the LD bar is adjusted by the spacer sheet intervened between the TAB sheet and the cooling assembly.
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G.L. Harnagel, et al., “Large Laser Diode Arrays for High-Duty-Cycle Operation”, Electronic Letters, Aug. 27, 1992, vol. 28, No. 18, pp. 1702-1704.
Mark A. Neifeld, et al., “Electrical Packaging Impact on Source Components in Optical Interconnects”, IEEE Transactions on Components, Packaging, and Manufacturing Technology—Part B, vol. 18, No. 3, Aug. 1995, pp. 578-595.
John G. Endriz, et al., “High Power Diode Laser Arrays”, 8106 IEEE Journal of Quantum Electronics, Apr. 28, 1992, vol. 28, No. 4, pp. 952-965.
Hayano Koji
Nishikawa Yuji
Ohyama Akinori
Sakano Tetsuro
Takigawa Hiroshi
Fanuc Ltd.
Ip Paul
Menefee James
Staas & Halsey , LLP
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