Integrated circuit devices and methods

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9362291
SERIAL NO

14455892

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An integrated circuit can include multiple SRAM cells, each including at least two pull-up transistors, at least two pull-down transistors, and at least two pass-gate transistors, each of the transistors having a gate; at least one of the pull-up transistors, the pull-down transistors, or the pass-gate transistors having a screening region a distance below the gate and separated from the gate by a semiconductor layer, the screening region having a concentration of screening region dopants, the concentration of screening region dopants being higher than a concentration of dopants in the semiconductor layer, the screening region providing an enhanced body coefficient for the pull-down transistors and the pass-gate transistors to increase the read static noise margin for the SRAM cell when a bias voltage is applied to the screening region; and a bias voltage network operable to apply one or more bias voltages to the multiple SRAM cells.

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Patent Owner(s)

Patent OwnerAddress
MIE FUJITSU SEMICONDUCTOR LIMITED2000 MIZONO TADO-CHO KUWANA MIE 511-0118

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Clark, Lawrence T Phoenix, US 139 2030
Rogenmoser, Robert Schwerzenbach, CH 19 111
Roy, Richard S Dublin, US 46 1088
Thompson, Scott E Gainesville, US 64 1047
Thummalapally, Damodar R Cupertino, US 31 700

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