1
Abdelkrim Tatah, Akira Fukumoto: 3-dimensional micromachining with femtosecond laser pulses. Panasonic Technologies, Ratner & Prestia, July 28, 1998: US05786560 (118 worldwide citation)

A method of treating a material by generating an ultraviolet wavelength laser beam having femtosecond pulses; splitting the ultraviolet wavelength laser beam into a plurality of separate laser beams having femtosecond pulses; directing the separate laser beams onto a target point within a sample suc ...


2
Abdelkrim Tatah, Xinbing Liu: Method and apparatus for focusing a laser. Matsushita Electric Industrial, Ratner & Prestia, March 12, 2002: US06355908 (46 worldwide citation)

A method for focusing an ultrashort pulse laser relative to a workpiece using the position of a plasma formed by a laser. A laser beam is focused to a focal point. The high peak intensity of the ultrashort pulse laser ionizes air at the focal region to form a plasma. The intensity of the plasma vari ...


3
Akira Fukumoto, Paul Laferriere, Abdelkrim Tatah: Apparatus and method for material treatment and inspection using fiber-coupled laser diode. Panasonic Technologies, Ratner & Prestia, December 3, 1996: US05580471 (39 worldwide citation)

Apparatus and method for the precision treatment of a material using a semiconductor diode for generating a plurality of laser light beams, optical fibers coupled to the diode for transmitting and combining the light beams, and a scanner for scanning the combined light beams onto the material to be ...


4
Abdelkrim Tatah: Laser ablation forward metal deposition with electrostatic assisted bonding. Matsushita Electric Industrial, Ratner & Prestia, October 22, 1996: US05567336 (27 worldwide citation)

Apparatus and method for metal line deposition on a substrate. Laser ablation of a metal film coated on a first substrate removes metal ions from the film. The ions travel forward to a surface of a second substrate disposed opposite the metal film on the first substrate and are deposited on the seco ...


5
Abdelkrim Tatah: Method for scanning a beam and an apparatus therefor. Matsushita Electric Industrial, Ratner & Prestia, March 14, 2000: US06037564 (16 worldwide citation)

A method for directing a light beam to a substrate and an apparatus to do the same. A single light beam is directed to a diffractive element. The diffractive element diffracts the single light beam to form a plurality of light beams. A controller generates a first control signal for controlling a di ...


6
Abdelkrim Tatah, Xinbing Liu: Method and apparatus for forming a diffraction grating. Matsushita Electric Industrial, Ratner & Prestia, February 12, 2002: US06347171 (15 worldwide citation)

A method for forming a diffraction grating in an optical fiber. First and second ultrashort laser pulses are generated. The first and second ultrashort laser pulses are directed to intersect and form an interference pattern. The interference pattern includes periodic intensity variations which cause ...


7
Abdelkrim Tatah: Laser ablation forward metal deposition with electrostatic assisted bonding. Panasonic Technologies, Ratner & Prestia, November 4, 1997: US05683601 (13 worldwide citation)

Apparatus and method for metal line deposition on a substrate. Laser ablation of a metal film coated on a first substrate removes metal ions from the film. The ions travel forward to a surface of a second substrate disposed opposite the metal film on the first substrate and are deposited on the seco ...


8
Abdelkrim Tatah: Multiwavelength and multibeam diffractive optics system for material processing. Panasonic Technologies, Ratner & Prestia, May 21, 1996: US05519724 (13 worldwide citation)

A laser apparatus having a laser that generates at least one laser beam of a fundamental wavelength, a diffractive optical element that converts the laser beam into a plurality of light beams at the fundamental wavelength, and a harmonic crystal that converts the plurality of light beams at the fund ...


9
Abdelkrim Tatah, Makoto Ishizuka: Mechanically restricted laser deposition. Matsushita Electric Industrial, Ratner & Prestia, May 9, 2000: US06060127 (10 worldwide citation)

An apparatus for metal line deposition and a method for metal line deposition using the apparatus. A donor plate has a donor substrate transparent to a focused coherent light beam and a donor surface. The donor surface of the donor plate has a channel formed therein. The channel is coated with a met ...


10
Abdelkrim Tatah: Repair of metal lines by electrostatically assisted laser ablative deposition. Matsushita Electric Industrial, Ratner & Prestia, August 10, 1999: US05935462 (8 worldwide citation)

Apparatus and method for metal line deposition on a substrate. Laser ablation of a metal film coated on a first substrate removes metal ions from the film. The ions travel forward to a surface of a second substrate disposed opposite the metal film on the first substrate and are deposited on the seco ...