摘要:
A process for patterning regions on a semiconductor structure comprises the steps of forming a first layer of an alloy of tungsten and titanium on the semiconductor structure, forming a conductive layer of aluminum or chemically similar material on the surface of the tungsten-titanium alloy, removing the undesired portions of the conductive layer by etching with a plasma and removing the thereby exposed portions of the tungsten-titanium alloy layer by chemical etching.
摘要:
An integrated circuit structure comprises a plurality of islands of semiconductor material (16-1 through 16-5) each island being separated from adjacent islands by a groove formed in annular shape around said island to laterally define the dimensions of each such island, an oxide (12, 14) formed over the surface of said grooves (13-1 through 13-6) and said islands and a selected glass (15) deposited on said oxide (14) in the grooves and over the top surface of said device, said glass having the property that it flows at a temperature beneath the temperature at which dopants in the islands of semiconductor material substantially redistribute, said selected glass (15) having a substantially flat top surface thereby to give said structure a substantially flat top surface.
摘要:
A low temperature insulating glass for use in semiconductor devices comprises a mixture of germanium, silicon, oxygen and phosphorus. In the preferred embodiment, the glass comprises a mixture of about 40% to 55% silicon dioxide (SiO.sub.2), about 55% to 40% of germanium dioxide (GeO.sub.2) and from 1% to about 5% of phosphorus pentoxide (P.sub.2 O.sub.5), by mole percent.
摘要翻译:用于半导体器件的低温绝缘玻璃包括锗,硅,氧和磷的混合物。 在优选的实施方案中,玻璃包含约40%至55%的二氧化硅(SiO 2),约55%至40%的二氧化锗(GeO 2)和1%至约5%的五氧化二磷(P 2 O 5)的混合物, 按摩尔%计。
摘要:
An integrated circuit structure comprises a plurality of islands of semiconductor material (16-1 through 16-5) each island being separated from adjacent islands by a groove formed in annular shape around said island to laterally define the dimensions of each such island, an oxide (12, 14) formed over the surface of said grooves (13-1 through 13-6) and said islands and a selected glass (15) deposited on said oxide (14) in the grooves and over the top surface of said device, said glass having the property that it flows at a temperature beneath the temperature at which dopants in the islands of semiconductor material substantially redistribute, said selected glass (15) having a substantially flat top surface thereby to give said structure a substantially flat top surface.
摘要:
A method of introducing a controlled flow of vapor from a high pressure sublimation chamber into a low pressure vapor deposition reactor, said vapor being derived from solid source material preferably, but not necessarily, having a vapor pressure above about one (1) Torr at a temperature not exceeding about 350.degree. C. The method comprises controllably heating the source material to a temperature sufficient to produce vapor therefrom at a desired pressure, and then controllably transferring the vapor through vapor transmission means to the vapor deposition reactor. During such transfer, the transmission means is maintained at a temperature sufficient to prevent condensation of the vapor therein during transfer. The vapor is delivered to the reactor in a pure state and is not mixed with any carrier medium.
摘要:
An integrated circuit device is fabricated upon a semi-conductor wafer by first forming a stop layer upon the surface of the wafer. Holes are formed through the stop layer and wells are formed in the semiconductor material of the semiconductor wafer below the openings. A dielectric layer is formed over the surface of the device substantially filling the wells and covering the stop layer. The dielectric layer is then planarized to substantially the level of the stop layer. A PAD oxide layer is provided between the stop layer and the surface of the semiconductor device. Conventional thin film oxidation of the wells and implants into the side walls of the wells are performed. An abrasive mechanical polisher is used to perform the planarization wherein the mechanical polisher is provided with the self-stopping feature when it encounters the stop layer.
摘要:
A polishing pad and a method for polishing semiconductor wafers. The polishing pad includes a polishing layer and a rigid layer. The rigid layer adjacent the polishing layer imparts a controlled rigidity to the polishing layer. The resilient layer adjacent the rigid layer provides substantially uniform pressure to the rigid layer. During operation, the rigid layer and the resilient layer apply an elastic flexure pressure to the polishing layer to induce a controlled flex in the polishing layer to conform to the global topography of the wafer surface while maintaining a controlled rigidity over the local topography of the wafer surface.
摘要:
An adjustable frame, mountable on a vehicle, for releasably securing hand trucks of different sizes and configurations includes: a support platform for receiving a base of a hand truck; a first and a second side member affixed to the platform; a first bracket and a second bracket attached to the first and second side members, respectively, the brackets extending in parallel therewith; an elongate swing bar pivotally connected to the first bracket and pivotal between a first position that retains the hand truck on the platform, and a second position, which allows access and removal of the hand truck from the platform; and a latch mounted on the swing bar. The second bracket may include a strike that engages the latch for releasably securing the swing bar in the first position. Cushioned crossbars attachable to the side members dampen vibration of the hand truck during transportation.
摘要:
A seat assembly includes a seat structural member and a clip having first and second hook portions. The first hook portion of the clip is attached to the structural member. The seat assembly also includes a first trim material having an edge attached to the clip. Preferably, the first trim material is an elastomeric material. The seat assembly further includes a second trim material having a first edge attached to the first trim material and a second edge attached to the second hook portion.
摘要:
A method is disclosed for forming MOSFET devices on a semiconductor substrate including steps of depositing layers of polysilicon, dielectric, and polysilicon again. Each polysilicon layer is planarized after it is deposited. The dielectric layer is patterned and etched to delineate active regions and interconnect grooves. After the second polysilicon layer is planarized, the material in the active region is patterned and etched to form a gate and source and drain areas. The appropriate areas of the active region are doped as necessary to form the source and drain.