摘要:
According to a semiconductor device and a method of manufacturing the same, a storage node has an increased capacity, and a resistance against soft error is improved. A GND interconnection is formed on a first interconnection layer including storage node portions with a dielectric film therebetween. Thereby, the storage node portions, the dielectric film, and the GND interconnection form a capacity element of the storage node portion. The first interconnection layer is arranged symmetrically around the center of the memory cell, and a plurality of memory cells having the same layout and neighboring to each other are arranged along the word lines.
摘要:
An n.sup.- epitaxial layer 4 is formed on the top face of a p type semiconductor substrate 1. A p.sup.+ buried layer 20 is formed by implanting ions in the region extending over the p type semiconductor substrate 1 and the n.sup.- epitaxial layer 4. A p.sup.+ channel stop is formed in the upper layer of the p.sup.+ buried layer 20 by ion implantation. A p well is formed extending from the upper layer of the p.sup.+ channel stop to the top face of the n.sup.- epitaxial layer. An n channel MOS type field effect transistor 200 is formed in the p well 22. It is possible to reliably isolate an element from an adjacent element thereto because of the structure.
摘要:
Insulator films (5) formed on an epitaxial layer (3) are opened such that external base regions (17) are not covered with the insulator films (5). Cross sections (14a) of the insulator films (5) are concavely sloped downward from the insulator films (5) toward an intrinsic base region (18) in the vicinity of the epitaxial layer (3). Base electrodes (15) which are in contact with the insulator films (5) along the cross sections (14a) are connected to the external base regions (17), so that coverage of the base electrodes (15) over the external base regions (17) is improved. The base resistance of a bipolar transistor (101) is reduced.
摘要:
On an epitaxial layer (4) serving as a collector layer are formed an emitter layer (10), an intrinsic base layer (9) surrounding the emitter layer (10) while permitting the surface of the emitter layer (10) to be exposed, external base layers (8) and link base layers (7) lying between the intrinsic base layer (9) and external base layers (8). The intrinsic base layer between the emitter layer and the epitaxial layer serving as the collector layer has a relatively high impurity concentration, so that a collector-emitter breakdown voltage is not decreased. The link base layers between the intrinsic base layer and external base layers has a relatively low impurity concentration to suppress decrease in emitter-base junction breakdown voltage.
摘要:
A semiconductor device including a shunt interconnection which operates at higher speed and permits high density integration is provided. In the semiconductor device including the shunt interconnection, a shunt connection region for a word line and a first shunt interconnection including a metal are formed in the memory cell region. In the memory cell region, shunt connection region and shunt interconnection are electrically connected with each other through a word line contact plug formed in a contact hole.
摘要:
An n.sup.+ buried layer is formed on a surface of p.sup.- semiconductor substrate. An n.sup.- epitaxial growth layer and an n.sup.+ diffusion layer are formed on a surface of n.sup.+ buried layer. A p.sup.- base region and p.sup.+ external base region adjoining to each other are formed on a surface of n.sup.- epitaxial growth layer. An an n.sup.+ emitter region is formed at a surface of p.sup.- base region. An emitter electrode is formed adjacently to n.sup.+ emitter region. The emitter electrode is made of polycrystalline silicon doped with phosphorus at a concentration from 1.times.10.sup.20 cm.sup.-3 to 6.times.10.sup.20 cm.sup.-3.
摘要翻译:在p-半导体衬底的表面上形成n +掩埋层。 在n +掩埋层的表面上形成n外延生长层和n +扩散层。 在n-外延生长层的表面上形成彼此相邻的p-基区和p +外基区。 在p基极区的表面形成n +射极区。 发射极电极与n +发射极区域相邻形成。 发射电极由掺杂浓度为1×10 20 cm -3至6×10 20 cm -3的磷的多晶硅制成。
摘要:
There is disclosed a C-BiCMOS semiconductor device in which a base electrode (300) of an NPN bipolar transistor and a drain electrode (360) of a PMOS transistor are formed of the same polycrystalline semiconductor, in which a base electrode (310) of a PNP bipolar transistor and a drain electrode (350) of an NMOS transistor are formed of the same polycrystalline semiconductor, and in which a source electrode (530) of the PMOS transistor and a source electrode (520) of the NMOS transistor are formed of aluminium wiring. The C-BiCMOS semiconductor device achieves preferable electric conductivity in the source electrodes, size reduction in the drain electrodes, and simplified process steps in the formation of the base electrodes of the bipolar transistors, so that the size of the devices is reduced in simple process steps without deterioration of the electric conductivity.
摘要:
Provided are a thin-film transistor formed by connecting polysilicon layers having different conductivity types with each other which prevents occurrence of inconvenience resulting from diffusion of impurities and a method of fabricating the same. A drain (6), a channel (7) and a source (8) are integrally formed on a surface of a second oxide film (4) by polysilicon. The drain (6) is formed to be connected with a pad layer (3) (second polycrystalline semiconductor layer) through a contact hole (5) which is formed to reach an upper surface of the pad layer (3). The pad layer (3) positioned on a bottom portion of the contact hole (5) (opening) is provided with a boron implantation region BR.
摘要:
Provided are a thin-film transistor formed by connecting polysilicon layers having different conductivity types with each other which prevents occurrence of inconvenience resulting from diffusion of impurities and a method of fabricating the same. A drain (6), a channel (7) and a source (8) are integrally formed on a surface of a second oxide film (4) by polysilicon. The drain (6) is formed to be connected with a pad layer (3) (second polycrystalline semiconductor layer) through a contact hole (5) which is formed to reach an upper surface of the pad layer (3). The pad layer (3) positioned on a bottom portion of the contact hole (5) (opening) is provided with a boron implantation region BR.
摘要:
The present invention provides an improved static random access memory which can be manufactured into values as designed by photolithography. Second direct contract for connecting active region and ground line for first and second memory cells is provided at a boundary between the first memory cell and second memory cell. Second direct contact is divided into a plurality of portions.