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:
May. 24, 2022
Filed:
Jun. 23, 2020
Winbond Electronics Corp., Taichung, TW;
Winbond Electronics Corp., Taichung, TW;
Abstract
A memory structure including a substrate, a bit line structure, a contact structure, and a capacitor structure is provided. The bit line structure is located on the substrate. The contact structure is located on the substrate on one side of the bit line structure. The capacitor structure is located on the contact structure. The capacitor structure includes a first electrode, a second electrode, and an insulating layer. The first electrode includes a first bottom surface and a second bottom surface. The first bottom surface is lower than the second bottom surface. The first bottom surface is only located on a part of the contact structure. The second electrode is located on the first electrode. The insulating layer is located between the first electrode and the second electrode.