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. 26, 2015
Filed:
Dec. 20, 2012
E Ink Holdings Inc., Hsinchu, TW;
Wei-Chou Lan, Hsinchu, TW;
Ted-Hong Shinn, Hsinchu, TW;
Henry Wang, Hsinchu, TW;
Chia-Chun Yeh, Hsinchu, TW;
E Ink Holdings Inc., Hsinchu, TW;
Abstract
A semiconductor device including a substrate, a metal layer, an insulating layer, a semiconductor layer, a drain and a source is provided. The substrate has a surface and a first cavity. The metal layer is disposed on the substrate and covers the surface and inner-wall of the first cavity to define a second cavity corresponding to the first cavity. The insulating layer covers the metal layer and inner-wall of the second cavity to define a third cavity corresponding to the second cavity. The semiconductor layer exposes a portion of the insulating layer and covers the inner-wall of the third cavity to define a fourth cavity corresponding to the third cavity. The drain and source are disposed on the semiconductor layer and covers a portion of the semiconductor layer and a portion of the insulating layer, in which the drain and source expose the fourth cavity.