Other

Eli Wiener-avnear

Laser Electro Optic Application Technology Company

James Earl McFall

Eliezer Wiener-Avnear

A pixel array device is fabricated by a laser micro-milling method under strict process control conditions. The device has an array of pixels bonded together with an adhesive filling the grooves between adjacent pixels. The array is fabricated by moving a substrate relative to a laser beam of predetermined intensity at a controlled, constant velocity along a predetermined path defining a set of grooves between adjacent pixels so that a predetermined laser flux per unit area is applied to the material, and repeating the movement for a plurality of passes of the laser beam until the grooves are ablated to a desired depth. The substrate is of an ultrasonic transducer material in one example for fabrication of a 2D ultrasonic phase array transducer. A substrate of phosphor material is used to fabricate an X-ray focal plane array detector.

High density pixel array

High density pixel array and laser micro-milling method for fabricating array

An x-ray focal plane array (XFPA) detector is fabricated by a laser micro-milling method under strict process control conditions. The detector has an array of phosphor pixels bonded together with a light reflective adhesive filling the grooves between adjacent pixels. The phosphor array is bonded on top of a visible detector array, either directly or via a light guiding structure, such that each phosphor pixel is aligned with a corresponding visible detector pixel. The phosphor array is fabricated by moving a phosphor substrate relative to a laser beam of predetermined intensity at a controlled, constant velocity along a predetermined path defining a set of grooves between adjacent pixels so that a predetermined laser flux per unit area is applied to the phosphor material, and repeating the movement for a plurality of passes of the laser beam until the grooves are ablated to a desired depth.

Growing community of inventors

Carlsbad, CA, United States of America

James Earl McFall