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:
Feb. 08, 2005
Filed:
Jul. 31, 2003
Applicants:
Phillip G. Wald, Boise, ID (US);
Casey Kurth, Eagle, ID (US);
Scott Derner, Meridian, ID (US);
Inventors:
Assignee:
Micron Technology, Inc., Boise, ID (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L021/22 ;
U.S. Cl.
CPC ...
Abstract
A ROM embedded DRAM allows hard programming of ROM cells by shorting DRAM capacitor plates during fabrication. In one embodiment, the intermediate dielectric layer is removed and the plates are shorted with a conductor. In another embodiment, an upper conductor and dielectric are removed and a conductor is fabricated in contact with the DRAM storage plate. The memory allows ROM cells to be hard programmed to different data states, such as Vcc and Vss.