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, 2022
Filed:
Apr. 13, 2018
Infineon Technologies Ag, Neubiberg, DE;
Nico Caspary, Munich, DE;
Hans-Joachim Schulze, Taufkirchen, DE;
Infineon Technologies AG, Neubiberg, DE;
Abstract
A silicon ingot has opposite ends. A specific resistance, measured along an axis between the opposite ends of the silicon ingot, has at least one point of inflection where a concavity of the specific resistance changes along the axis. According to another embodiment, a silicon ingot has a first ingot part and a second ingot part between opposite ends of the silicon ingot. The first ingot part has a different specific resistance than the second ingot part. In a region of the silicon ingot between the first and second ingot parts, the specific resistance has at least one point of inflection where a concavity of the specific resistance changes.