Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Lumped type parameters
Reexamination Certificate
2005-03-01
2005-03-01
Le, N. (Department: 2858)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Lumped type parameters
C324S658000, C324S548000
Reexamination Certificate
active
06861849
ABSTRACT:
The capacity measuring device comprises a transistor (40) formed on a silicon substrate and having a drain, source, and gate regions (41, 42, and43), extension metals (51-54) to be connected to the regions, a guard electrode (55) surrounding the extension metal (53) for the gate region, measurement pads (61-64) electrically connected to the extension metals, the guard rings (61g-64g) surrounding the measurement pads and connected to the guard electrode (55). Accordingly, the infinitesimal capacity between any regions of the transistor in full scale is accurately measured by connecting the guard electrode (55) to a guard terminal of an infinitesimal capacity measuring apparatus for canceling the parasitic capacity.
REFERENCES:
patent: 6348809 (2002-02-01), Hirota et al.
patent: 2000-55956 (2000-02-01), None
Nguyen Vincent Q.
Oki Electric Industry Co. Ltd.
Takeuchi & Takeuchi
LandOfFree
Capacity measuring device and capacity measuring method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Capacity measuring device and capacity measuring method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Capacity measuring device and capacity measuring method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3393101