Holographic optical element for laser soldering

Sumio Nakahara; Tatsuya Hayashi; Noriyuki Sudou; Shigeyoshi Hisada; Takeyoshi Fujita

doi:10.1117/12.456804

25 February 2002 Holographic optical element for laser soldering

Sumio Nakahara, Tatsuya Hayashi, Noriyuki Sudou, Shigeyoshi Hisada, Takeyoshi Fujita

Proceedings Volume 4426, Second International Symposium on Laser Precision Microfabrication; (2002) https://doi.org/10.1117/12.456804
Event: Second International Symposium on Laser Precision Micromachining, 2001, Singapore, Singapore

Abstract

Experimental studies on the characteristics of holographic lens were carried out, aiming at the simultaneous soldering of multi-spots in electronic assembly by the use of YAG laser. Holograms were recorded on the commercial available photographic plates, and converted into transparent phase type holographic lens by chemical processing. The dependencies of the diffraction efficiency on the recording conditions and two chemical treatment methods of silver halide sensitized gelatin and rehalogenating bleaching were examined in CW YAG laser system ((lambda) equals 1.06 micrometers ).

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Sumio Nakahara, Tatsuya Hayashi, Noriyuki Sudou, Shigeyoshi Hisada, and Takeyoshi Fujita "Holographic optical element for laser soldering", Proc. SPIE 4426, Second International Symposium on Laser Precision Microfabrication, (25 February 2002); https://doi.org/10.1117/12.456804

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