RFID tag circuits using ring FET

Details RFID tag circuits using ring FET RFID tag circuits using ring FET

2006-07-18

2008-09-02

Nguyen, Phung (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S572100, C343S7000MS

Reexamination Certificate

active

07420469

ABSTRACT:
A Radio Frequency IDentification (RFID) circuit for use in an RFID tag includes a FET semiconductor device that is coupled to antenna connections. The device can be part of a modulator, a demodulator, or a rectifier. A designated region for a first terminal (such as a drain or a source) is formed as an island completely surrounded by a gate structure, which minimizes parasitic effects. One or more designated regions for a second terminal (such as a source or a drain) outside the gate structure complete the FET device.

REFERENCES:
patent: 5430441 (1995-07-01), Bickley et al.
patent: 5771021 (1998-06-01), Veghte et al.
patent: 6078259 (2000-06-01), Brady et al.
patent: 6130570 (2000-10-01), Pan et al.
patent: 2003/0234655 (2003-12-01), Sarma et al.
patent: 2006/0055620 (2006-03-01), Oliver et al.

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