Semiconductor device

Details Semiconductor device Semiconductor device

2006-07-24

2010-11-16

Tran, Khai (Department: 2611)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S219000

Reexamination Certificate

active

07835422

ABSTRACT:
In a semiconductor device having a large-scale arithmetic circuit, when there is delay in clock signals, a malfunction occurs in a circuit. In particular, in an environment where supply voltage varies as in a wireless chip, it is very difficult to precisely estimate delays in clock signals in designing. Further, in order to keep supply voltage stable, a large-scale power supply circuit is required, which increases the area of a chip, and the cost thereof. A semiconductor device provided with a power control circuit and a clock generation circuit is used to detect variation in supply voltage using the power control circuit and changing frequency and duty ratio of a clock circuit using the clock generation circuit, thereby operating an arithmetic circuit stably. A high performance semiconductor device provided with such a large-scale arithmetic circuit can be provided at low cost.

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RFCPUs on Glass and Plastic Substrates Fabricated by TFT Transfer Technology, 2005 IEDM [5.8], 3 pages.
Office Action (Application No. 200610110005.5) Dated Jun. 19, 2009.

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