Semiconductor anti-interference band for integrated circuit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 2, 2003
Grant Date -
N/A
app pub date -
Jul 8, 2002
filing date -
Jul 8, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A semiconductor anti-interference band distributed on peripheries of partial of regional circuits in an integrated circuit is assembled by an unequal number of PNP structures; two metal bands are disposed on the surface layer of the integrated circuit, wherein one band connects with GND and the other connects with Vcc; to add positive voltage at Vcc increases the charge at P+ tip thereby generating a parasitic capacitance on a poly layer between two P+ tips and limiting a noisy signal within the distributed area; furthermore, the P+ tip and an N well connect to produce a positive voltage zone in a large area to forcefully prevent a noisy signal current from passing through and make it discharge at a ground end with lower voltage so as to achieve the electromagnetic anti-interference function of the integrated circuit.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully