Waddie Heyward

US Patent:

6669803, Dec 30, 2003

Filed:

Sep 29, 2000

Appl. No.:

09/672445

Inventors:

Alan D. Kathman - Charlotte NC
Harris R. Miller - Charlotte NC
Jay Matthews - Huntersville NC
Stacey Grabiner - Charlotte NC
Waddie Heyward - Charlotte NC

Assignee:

Digital Optics Corp. - Charlotte NC

International Classification:

B32B 3118

US Classification:

156250, 156291, 156297, 156299, 156300, 216 24, 216 26

Abstract:

Different techniques may be used to realize the simultaneous provision of bonding material at a controlled height on a wafer level. These techniques include photolithographically patterning a layer of bonding material and providing spacer elements on a wafer then contacting another surface having the bonding material provided thereon to transfer the bonding material to the spacer elements. The patterning of the bonding material may include using a mask direct contact with or spaced from the bonding material. The providing of the spacer elements may include forming the spacers in the wafer itself or attaching spacer elements, particularly a wafer of spacer elements. The resultant integrated structure has controlled spacing between the bonded elements.

US Patent:

55090834, Apr 16, 1996

Filed:

Jun 15, 1994

Appl. No.:

8/259879

Inventors:

Nooral S. Abtahi - Charlotte NC
Grady C. Shumate - Charlotte NC
Waddie Heyward - Charlotte NC
Hedong Yang - Charlotte NC

International Classification:

G06K 900

US Classification:

382124

Abstract:

A system for confirming the identity of an individual presenting an identification card includes a card reader, an associated central processing unit, a preselected feature template library associated with the central processing unit, a scanner for scanning preselected portions of an epidermis, such as a fingerprint, RAM storage means operatively associated with the central processing unit and the scanner, a communication interface such as a modem communicating with a remote site, and an output display indicating the identifier correlation. This invention provides an improved method of verifying that a card holder is the card owner by matching the image of the card holder's fingerprint to the unique code which has been assigned to the card owner and encoded on the card's magnetic strip, which requires only a relatively small amount of data to perform identification, making it possible to use low cost, low density encoding methods including bar code and magnetic strip. Fingerprint verification apparatus is also disclosed.