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Capacitance coupled driving circuit

A drive circuit, overdrive technology, applied in the direction of logic circuit, logic circuit connection/interface layout, electrical components, etc., can solve the problems of increased voltage power consumption, performance degradation, etc., to achieve the effect of increasing the overdrive voltage

Inactive Publication Date: 2006-01-11
INFINEON TECHNOLOGIES NORTH AMERICA CORPORATION +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The larger the voltage swing between high and low levels, the more time it takes to charge and discharge the bus, for example, causing performance degradation
In addition, the increased voltage increases power consumption, which is undesirable especially for portable systems such as laptop computers

Method used

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  • Capacitance coupled driving circuit
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Examples

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Embodiment Construction

[0022] The present invention relates to a semiconductor device, in particular to a driving circuit used in the semiconductor device. For example, the semiconductor device may be a memory circuit such as Random Access Memory (RAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Ferroelectric RAM (FRAM), such as RDRAM (Direct RAM Bus), SLDRAM (Synclink DRAM) or protocol oriented RAM such as static RAM (SRAM). The semiconductor device may also be a logic device, such as a programmable logic array (PLA), an application specific integrated circuit (ASIC), an incorporated DRAM logic IC (embedded DRAM), or other circuit devices. For example, semiconductor devices may be used in consumer electronics such as computer systems, office equipment including copiers and printers, cellular telephones, personal digital assistants (PDAs), and other electronic products.

[0023] According to the invention, in order to increase the current flow at the output, the driver circuit operates in an enh...

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PUM

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Abstract

A high performance driver circuit is described. The driver produces increased current flow at its output to decrease charging time. Increased current flow is achieved by providing an overdrive circuit that provides a voltage offset to increase the magnitude of the overdrive voltage.

Description

[0001] This application is a serial application of co-pending US Application USSN 09 / 225,664 (Attorney Docket No. 99 P 7441 US), entitled "Improved Driver Circuit." technical field [0002] The present invention relates to semiconductor devices. In particular, it relates to drive circuits capable of high-frequency operation. Background technique [0003] As semiconductor integrated circuits (ICs) operate at higher frequencies, IC designers are faced with smaller or tighter operating windows. For example, in memory ICs such as dynamic random access memory (DRAM), it becomes more difficult to complete certain operations such as reading, writing or precharging within the cycle time of one chip. One scheme to limit the speed of operation in memory ICs is bus charging. For example, there are buses that need to be charged to an appropriate level within one clock cycle. IC clock operation is a concept that has been used for a long time. Higher operating frequencies make it incr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11C7/12G11C11/409G11C7/10G11C11/4096G11C11/41G11C11/417H03K19/017H03K19/0175
CPCG11C7/1012H03K19/01728G11C7/1069G11C11/4096G11C7/1048H03K19/01707G11C7/1051E04F13/0853E04F2201/0517
Inventor D·R·汉森G·米勒
Owner INFINEON TECHNOLOGIES NORTH AMERICA CORPORATION
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