Microminiature optical waveguide structure and method for fabric

Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making named article

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

430330, 385 35, G03C 500

Patent

active

058466940

ABSTRACT:
A method for manufacturing low-cost, nearly circular cross section waveguides comprises starting with a substrate material that a molten waveguide material can not wet or coat. A thin layer is deposited of an opposite material that the molten waveguide material will wet and is patterned to describe the desired surface-contact path pedestals for a waveguide. A waveguide material, e.g., polymer or doped silica, is deposited. A resist material is deposited and unwanted excess is removed to form pattern masks. The waveguide material is etched away to form waveguide precursors and the masks are removed. Heat is applied to reflow the waveguide precursors into near-circular cross-section waveguides that sit atop the pedestals. The waveguide material naturally forms nearly circular cross sections due to the surface tension effects. After cooling, the waveguides will maintain the round shape. If the width and length are the same, then spherical ball lenses are formed. Alternatively, the pedestals can be patterned to taper along their lengths on the surface of the substrate. This will cause the waveguides to assume a conical taper after reflowing by heat.

REFERENCES:
patent: 5064266 (1991-11-01), Sun et al.
patent: 5246733 (1993-09-01), Springer et al.
patent: 5439782 (1995-08-01), Haemmerle et al.
patent: 5499312 (1996-03-01), Hahn et al.
R. R. A. Syms and A. S. Holmes, Reflow and Burial of Channel Waveguides Formed in Sol-Gel Glass on Si Substrates, IEEE Photonics Technology Letters, vol. 5, No. 9, pp. 1077-1079, Sep. 1993.
C. J. Sun, et al., Silica Based Circular Cross-Sectioned Channel Waveguides, IEEE Photonics Technology Letters, vol. 3, No. 3, pp. 238-240, Mar. 1991.
H. Izadpanah and L. A. Reith, Microlens fabrication technique for an efficient laser/single-mode fiber coupling, SPIE vol. 836 Optoelectronic Materials, Devices, Packaging, and Interconnects, pp. 306-310 (1987).
L. F. Miller, Controlled Collapse Reflow Chip Joining, IBM J. Res. Develop., pp. 239-250, May 1969.
L. S. Goldmann and P. A. Totta, Area Array Solder Interconnections for VLSI, Solid State Technology, pp. 91-97, Jun. 1983.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Microminiature optical waveguide structure and method for fabric does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Microminiature optical waveguide structure and method for fabric, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microminiature optical waveguide structure and method for fabric will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-175553

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.