Invention Grant
- Patent Title: Fuse sensing scheme
- Patent Title (中): 保险丝感测方案
-
Application No.: US11770956Application Date: 2007-06-29
-
Publication No.: US07986024B2Publication Date: 2011-07-26
- Inventor: Thomas Nirschl
- Applicant: Thomas Nirschl
- Applicant Address: DE Neubiberg
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Neubiberg
- Agency: Eschweiler & Associates, LLC
- Main IPC: H01H85/30
- IPC: H01H85/30

Abstract:
A fuse circuit includes a fuse configured for programming a configuration of an integrated circuit device and a resistive element having a known resistance value operably coupled in parallel with the fuse. The fuse and the resistive element form a parallel circuit configured for quickly sensing a state of the fuse in relation to the known value of the resistive element. In one embodiment, the device may further include a sense circuit operably coupled to the parallel circuit combination of the fuse and the resistive element. The sense circuit is configured to sense one of a FUSED state and an UNFUSED state of the fuse, for example, based on a comparison between a reference resistance and a FUSED resistance of the fuse when coupled to the known resistance. The fuse may comprise a programmable fuse, and the resistive element may comprise a MOS transistor.
Public/Granted literature
- US20090002119A1 FUSE SENSING SCHEME Public/Granted day:2009-01-01
Information query