1
Yinon Degani, Thomas D Dudderar, Byung J Han, Alan M Lyons, King L Tai: Packaging multi-chip modules without wire-bond interconnection. Lucent Technologies, Oleg E Alber, Robert E Rudnick, March 4, 1997: US05608262 (209 worldwide citation)

Described is a novel packaging of MCM tiles without wire-bond interconnections and in a total thickness which is reduced relative to conventional MCM packaging. The MCM tile includes a substrate with a plurality of peripheral metallizations and at least one chip flip-chip mounted on the substrate. T ...


2
Gabriel L Miller, Eric R Wagner: In situ monitoring technique and apparatus for chemical/mechanical planarization endpoint detection. AT&T Bell Laboratories, Oleg E Alber, January 14, 1992: US05081421 (174 worldwide citation)

This invention provides an in situ monitoring technique and apparatus for chemical/mechanical planarization end point detection in the process of fabricating semiconductor or optical devices. Fabrication of semiconductor or optical devices often requires smooth planar surfaces, either on the surface ...


3
Yinon Degani, Thomas D Dudderar, William L Woods Jr: Surface mount solder assembly of leadless integrated circuit packages to substrates. AT&T Bell Laboratories, Oleg E Alber, September 13, 1994: US05346118 (132 worldwide citation)

Described are a process for soldering at least one component having solder bumps to a substrate and a process for forming solder bumps on metal pads of an element, such as an IC package or substrate or both. The bumps are formed by stencil printing solder paste deposits on the metal pads, heating th ...


4
Alfred Y Cho, Erdmann F Schubert, Li Wei Tu, George J Zydzik: Light emitting diode. AT&T Bell Laboratories, Oleg E Alber, July 6, 1993: US05226053 (121 worldwide citation)

This invention embodies a LED in which an optical cavity of the LED, which includes an active layer (or region) and confining layers, is within a resonant Fabry-Perot cavity. The LED with the resonant cavity, hereinafter called Resonant Cavity LED or RCLED, has a higher spectral purity and higher li ...


5
John E Cunningham, Erdmann F Schubert, Won Tien Tsang: Field-effect transistor having a delta-doped ohmic contact. American Telephone & Telegraph Company AT&T Bell Laboratories, Daniel D Dubosky, Oleg E Alber, October 25, 1988: US04780748 (94 worldwide citation)

A field-effect transistor is created on a GaAs semi-insulating substrate using molecular beam epitaxy by fabricating a delta-doped monolayer with a silicon dopant between two undoped GaAs layers grown over the semi-insulating substrate. A plurality of delta-doped monolayers are grown over the surfac ...


6
Herman M Presby: Method and apparatus for fabricating microlenses on optical fibers. AT&T Bell Laboratories, Oleg E Alber, June 12, 1990: US04932989 (86 worldwide citation)

This invention concerns with a process and apparatus for fabricating microlenses on optical fibers. A pulsed laser beam and an end portion of a fiber are arranged relative to each to another so that the laser beam is incident on the end portion of the fiber at an acute angle .theta. to the longitudi ...


7
Neil E J Hunt, Erdmann F Schubert, George J Zydzik: Photodetector with a resonant cavity. AT&T Bell Laboratories, Oleg E Alber, May 24, 1994: US05315128 (67 worldwide citation)

Described is a resonant-cavity p-i-n photodetector based on the reflection or transmission through a Fabry-Perot cavity incorporating non-epitaxial, amorphous layers with alternating refractive index difference which layers are electron-beam deposited on a light-gathering side of a commercially avai ...


8
Christopher A Edwards, Herman M Presby: Coupling of optical devices to optical fibers by means of microlenses. AT&T Bell Laboratories, Oleg E Alber, April 30, 1991: US05011254 (62 worldwide citation)

This invention is concerned with coupling optical energy efficiently by means of a microlens at an end of an optical fiber, the microlens being capable of improved coupling efficiency exceeding 55 percent (-2.5 dB), with coupling efficiencies of about 90 percent or more (less than 0.45 dB and as low ...


9
Alfred Y Cho, Deborah L Sivco, Daryoosh Vakhshoori: Integrated optical package for coupling optical fibers to devices with asymmetric light beams. AT&T Bell Laboratories, Oleg E Alber, November 23, 1993: US05265177 (59 worldwide citation)

This invention embodies an integrated optical package including an optical component having an asymmetric modal output, and a lens integrated with the component for coupling to another optical component having a large modal area. The coupling is achieved by the use of a Polymeric Elongated Waveguide ...


10
Karen A Grim, Shobha Singh, LeGrand G Van Uitert, George J Zydzik: Procedure for rapid thermal annealing of implanted semiconductors. AT&T Bell Laboratories, Oleg E Alber, April 30, 1991: US05011794 (53 worldwide citation)

This invention is directed to the fabrication of semiconductor devices, especially those comprising III-V and II-VI compound semiconductor materials, and involves Rapid Thermal Annealing (RTA) of semiconductor wafers, especially those implanted with a dopant(s). The invention is also concerned with ...



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