摘要:
A semiconductor device produced by forming an oxide film on a substrate, heat treating the oxide film at a temperature of 800° C. or higher in an inert atmosphere, followed by conventional steps for formation of a transistor, is improved in electrical reliability due to relaxation of stress generated in the oxide film or in the surface of substrate.
摘要:
A semiconductor device containing a polycrystalline silicon thin film wherein crystal grains of the silicon thin film have mainly a columnar structure and a crystal orientation of individual crystal grains is almost in a uniform direction can be produced by depositing a non-impurity-doped silicon thin film or an impurity layer on an interface of underlying film, followed by deposition of impurity-doped silicon thin film, if necessary, followed by heat treatment for polycrystallization.
摘要:
A semiconductor device containing a polycrystalline silicon thin film wherein crystal grains of the silicon thin film have mainly a columnar structure and a crystal orientation of individual crystal grains is almost in a uniform direction can be produced by depositing a non-impurity-doped silicon thin film or an impurity layer on an interface of underlying film, followed by deposition of impurity-doped silicon thin film, if necessary, followed by heat treatment for polycrystallization.
摘要:
A semiconductor device containing a polycrystalline silicon thin film wherein crystal grains of the silicon thin film have mainly a columnar structure and a crystal orientation of individual crystal grains is almost in a uniform direction can be produced by depositing a non-impurity-doped silicon thin film or an impurity layer on an interface of underlying film, followed by deposition of impurity-doped silicon thin film, if necessary, followed by heat treatment for polycrystallization.
摘要:
A semiconductor device containing a polycrystalline silicon thin film wherein crystal grains of the silicon thin film have mainly a columnar structure and a crystal orientation of individual crystal grains is almost in a uniform direction can be produced by depositing a non-impurity-doped silicon thin film or an impurity layer on an interface of underlying film, followed by deposition of impurity-doped silicon thin film, if necessary, followed by heat treatment for polycrystallization.
摘要:
A semiconductor device containing a polycrystalline silicon thin film wherein crystal grains of the silicon thin film have mainly a columnar structure and a crystal orientation of individual crystal grains is almost in a uniform direction can be produced by depositing a non-impurity-doped silicon thin film or an impurity layer on an interface of underlying film, followed by deposition of impurity-doped silicon thin film, if necessary, followed by heat treatment for polycrystallization.
摘要:
A bipolar device having a level difference between the contact area level of a base electrode and a base region in a silicon substrate, and the contact area level of an emitter electrode and an emitter region in the silicon substrate in the range of 0.03 .mu.m to 0.1 .mu.m by removing undesirable impurities from the emitter region and a predetermined horizontal distance between a sidewall and a device isolation film does not generate dislocation and show good electric characteristics.
摘要:
A bipolar device having a level difference between the contact area level of a base electrode and a base region in a silicon substrate, and the contact area level of an emitter electrode and an emitter region in the silicon substrate in the range of 0.03 .mu.m to 0.1 .mu.m by removing undesirable impurities from the emitter region and a predetermined horizontal distance between a sidewall and a device isolation film does not generate dislocation and show good electric characteristics.
摘要:
A multi-chip module has at least two semiconductor chips. Each of the semiconductor chips has chip electrodes of the semiconductor chip, electrically conductive interconnections for electrically connection with the chip electrodes, electrically conductive lands for electrically connection with the interconnections, external terminals placed on the lands, and a stress-relaxation layer intervening between the lands and the semiconductor chip. The semiconductor chips are placed on a mounting board via the external terminals. The stress-relaxation layer of a first semiconductor chip is thicker than the stress-relaxation layer of a second semiconductor chip having a distance from a center thereof to an external terminal positioned at an outermost end portion thereof smaller than that of the first semiconductor chip.
摘要:
In a small semiconductor device having external terminals on a semiconductor element and a semiconductor module mounted with the small semiconductor device, disconnection of the external terminals is prevented when a temperature change occurs under the conditions that the semiconductor device is mounted on a printed circuit board. To achieve this a projection is formed on a land which is an external terminal bonding area of the semiconductor device, and a protruded portion of the projection is bonded to the external terminal. An intervening portion of a protective film made of resin material is formed between the lands and semiconductor element.