Coded data generation or conversion – Analog to or from digital conversion – Digital to analog conversion
Reexamination Certificate
2005-10-11
2005-10-11
Wamsley, Patrick (Department: 2819)
Coded data generation or conversion
Analog to or from digital conversion
Digital to analog conversion
C257S202000
Reexamination Certificate
active
06954164
ABSTRACT:
The present invention discloses a transistor array and a layout method, the array including a plurality of first LSB transistors arranged along diagonal directions of a central portion of a first quadrant of an array including a plurality of rows and a plurality of columns; a plurality of first MSB transistors arranged along diagonal directions above and below the plurality of first LSB transistors, respectively; a plurality of second LSB transistors and a plurality of second MSB transistors arranged on a second quadrant of the array to be symmetrical in a Y-axis direction to the plurality of first LSB transistors and the plurality of first MSB transistors; a plurality of third LSB transistors and a plurality of third MSB transistors arranged on a third quadrant of the array to be symmetrical in an X-axis direction to the plurality of first LSB transistors and the plurality of first MSB transistors; and a plurality of fourth LSB transistors and a plurality of fourth MSB transistors arranged on a fourth quadrant of the array to be symmetrical in a Y-axis direction to the plurality of third LSB transistors and the plurality of third MSB transistors, such that the transitor array can minimize the effects of temperature distribution and process variation.
REFERENCES:
patent: 5001484 (1991-03-01), Weiss
patent: 5568145 (1996-10-01), Reynolds
patent: 5627538 (1997-05-01), Ferry
patent: 6166670 (2000-12-01), O'Shaughnessy
patent: 6222474 (2001-04-01), Fattaruso et al.
patent: 6225933 (2001-05-01), Salter et al.
patent: 6317066 (2001-11-01), Chiang
patent: 6317069 (2001-11-01), Male et al.
patent: 6469646 (2002-10-01), Song
patent: 6720898 (2004-04-01), Ostrem
Lee Kwang-Hee
Moon Kyeong-Tae
F.Chau & Associates LLC
Samsung Electronics Co,. Ltd.
Wamsley Patrick
LandOfFree
Digital to analog converter transistor array and method of... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital to analog converter transistor array and method of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital to analog converter transistor array and method of... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3452781