摘要:
A memory device, such as a DRAM, SRAM or non-volatile memory device, includes a substrate, a gate electrode disposed on the substrate, and source and drain regions in the substrate adjacent respective first and second sidewalls of the gate electrode. First and second sidewall spacers are disposed on respective ones of the first and second sidewalls of the gate electrode. The first and second sidewall spacers have different dielectric constants. The first and second sidewall spacers may be substantially symmetrical and/or have substantially the same thickness.
摘要:
A memory device, such as a DRAM, SRAM or non-volatile memory device, includes a substrate, a gate electrode disposed on the substrate, and source and drain regions in the substrate adjacent respective first and second sidewalls of the gate electrode. First and second sidewall spacers are disposed on respective ones of the first and second sidewalls of the gate electrode. The first and second sidewall spacers have different dielectric constants. The first and second sidewall spacers may be substantially symmetrical and/or have substantially the same thickness.
摘要:
A memory device, such as a DRAM, SRAM or non-volatile memory device, includes a substrate, a gate electrode disposed on the substrate, and source and drain regions in the substrate adjacent respective first and second sidewalls of the gate electrode. First and second sidewall spacers are disposed on respective ones of the first and second sidewalls of the gate electrode. The first and second sidewall spacers have different dielectric constants. The first and second sidewall spacers may be substantially symmetrical and/or have substantially the same thickness.
摘要:
A memory device, such as a DRAM, SRAM or non-volatile memory device, includes a substrate, a gate electrode disposed on the substrate, and source and drain regions in the substrate adjacent respective first and second sidewalls of the gate electrode. First and second sidewall spacers are disposed on respective ones of the first and second sidewalls of the gate electrode. The first and second sidewall spacers have different dielectric constants. The first and second sidewall spacers may be substantially symmetrical and/or have substantially the same thickness.
摘要:
A wiring structure of a semiconductor device and a method for manufacturing the same are provided. The wiring structure according to the present invention includes a body formed of a conductive material in a first insulating film on a semiconductor substrate and a protrusion formed of a conductive material in a second insulating film formed on the first insulating film, connected to the upper surface of the body, formed to have a width less than that of the body, and having a planarized upper surface.
摘要:
A MOS transistor having a self-aligned well bias area and a method of fabricating the same provide for efficient application of well bias in a highly integrated semiconductor substrate without causing latch-up. The well bias area is formed at a trench, which is formed by etching a semiconductor substrate in a manner of self-alignment, so that well bias can be efficiently applied to the MOS transistor achieving reduction of the area of a chip without degradation of electrical characteristics.
摘要:
Methods of forming bipolar junction transistors include the step of forming insulated gate electrode means adjacent the base region of the transistor so that the majority carrier conductivity of the base region and the gain (.beta.) of the transistor can be modulated in response to a gate bias. The methods can include the steps of forming an insulated gate electrode containing a conductive gate on a face of a substrate and then forming a base region in the substrate. These steps can then be followed by the steps of patterning the insulated gate electrode to define an opening which exposes a first portion of the base region at the face and then forming an emitter electrode in the opening. The emitter electrode and conductive gate are preferably formed to be in electrical contact so that during operation, the potential of the emitter electrode and conductive gate are maintained at the same level. The emitter electrode is preferably a semiconductor containing first conductivity type dopants which can be diffused into the base region to define an emitter region.
摘要:
A wiring structure of a semiconductor device and a method for manufacturing the same are provided. The wiring structure according to the present invention includes a body formed of a first conductive material in a first insulating film on a semiconductor substrate and a protrusion formed of a second conductive material in a second insulating film formed on the first insulating film, connected to the upper surface of the body, formed to have a width less than that of the body, and having a planarized upper surface.