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Browse Prior Art Database

Laminated Scanlaser Matrix

IP.com Disclosure Number: IPCOM000090135D
Original Publication Date: 1969-Feb-01
Included in the Prior Art Database: 2005-Mar-05
Document File: 2 page(s) / 64K

Publishing Venue

IBM

Related People

Siegel, A: AUTHOR

Abstract

The apparatus is involved in the fabrication process utilized to form a laminated lithium niobate matrix arrangement for a digital scanlaser. To form the matrix arrangement, it is required that each crystal slab be cut into segments with each cut being smooth and parallel to the other. After undergoing evaporation treatment, it is required that the surfaces cut be accurately realigned and reconnected. The crystal handling jig shown at A is used for cutting and for realigning and reconnecting after evaporation treatment. The jig shown at B is used for the intermediate evaporation step.

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Laminated Scanlaser Matrix

The apparatus is involved in the fabrication process utilized to form a laminated lithium niobate matrix arrangement for a digital scanlaser. To form the matrix arrangement, it is required that each crystal slab be cut into segments with each cut being smooth and parallel to the other. After undergoing evaporation treatment, it is required that the surfaces cut be accurately realigned and reconnected. The crystal handling jig shown at A is used for cutting and for realigning and reconnecting after evaporation treatment. The jig shown at B is used for the intermediate evaporation step.

The crystal, shown at A and cut into segments 6 and 7, is first mounted, with glycol phthalate, between small brass plates 1 and 2 of the jig. Plates 1 and 2 are mounted on respective dovetail holders 3 and 4. These are located in the dovetail slides of the jig to provide proper cutting alignment. With gold foil bow 5 removed from the vicinity of the crystal, the latter is cut with a string cutter into segments 6 and 7.

After cutting the crystal, dovetail holders 3 and 4, each now holding segments 6 and 7 of the crystal, are removed from the jig and inserted into the dovetail slides of the jig, as shown at B. Then, 500 Angstroms of chrome and 1000 Angstroms of gold are evaporated on each of the newly cut surfaces through evaporation mask 8. Height adjustment is provided by adjusting screw 9.

To realign and reconnect the crystal segments back together, the...