The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 10, 2019
Filed:
Nov. 15, 2016
Applicant:
Hewlett-packard Development Company, L.p., Houston, TX (US);
Inventors:
Reynaldo V. Villavelez, Corvallis, OR (US);
Paul I. Mikulan, Carrollton, TX (US);
Assignee:
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P., Spring, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/11524 (2017.01); H01L 21/28 (2006.01); G11C 16/10 (2006.01); H01L 27/11519 (2017.01); H01L 27/11521 (2017.01); H01L 29/788 (2006.01); H01L 29/423 (2006.01); H01L 29/66 (2006.01); H01L 29/06 (2006.01); B41J 2/045 (2006.01); H01L 29/08 (2006.01); H01L 29/10 (2006.01);
U.S. Cl.
CPC ...
H01L 27/11524 (2013.01); B41J 2/04541 (2013.01); B41J 2/04586 (2013.01); G11C 16/10 (2013.01); H01L 21/28273 (2013.01); H01L 27/11519 (2013.01); H01L 27/11521 (2013.01); H01L 29/0692 (2013.01); H01L 29/0696 (2013.01); H01L 29/0847 (2013.01); H01L 29/1033 (2013.01); H01L 29/40114 (2019.08); H01L 29/42324 (2013.01); H01L 29/66825 (2013.01); H01L 29/788 (2013.01); H01L 29/7884 (2013.01);
Abstract
A memory cell for a printhead includes a substrate with a source and a drain. The substrate further includes a channel located between the source and the drain and surrounding the drain. The drain can include a first rounded closed curved structure. The memory cell can include a floating gate and a control gate. The floating gate can include a second rounded closed curve structure located above the channel and below the control gate. The control gate is capacitively coupled to the floating gate.