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:
Sep. 15, 2015
Filed:
Dec. 12, 2013
Asahi Kasei Microdevices Corporation, Tokyo, JP;
Asahi Kasei Microdevices Corporation, Tokyo, JP;
Abstract
By restricting the concentration and the depth of an n-type impurity region which is a magnetosensitive portion of a Hall device to appropriate ranges, it is possible to improve linearity of temperature characteristics in detecting a magnetic field intensity with high accuracy. In order to obtain linearity of the temperature characteristics of the constant-current sensitivity, there is provided a Hall device including a p-type impurity regionand an n-type impurity regionthat is disposed on the p-type impurity regionand that serves as a magnetosensitive portion, wherein an n-type impurity concentration N and a distribution depth D of the n-type impurity regionsatisfy relational expressions of N<1.0×10and N>3.802×10×D.