摘要:
Implantable medical devices with coatings formed by atomic layer deposition and methods of applying such coatings to implantable medical devices are disclosed. The medical devices may include electrical feedthroughs and media exposed integrated circuits and/or transducer systems, as well as others. The coatings may improve, among other things, hermeticity, biocompatibility, biostability, surface characteristics, and electrical properties.
摘要:
An electrolytic capacitor cell for use in implantable medical devices and associated method for manufacture are provided. The capacitor cell includes an electrode substrate having a dielectric layer formed thereon by atomic layer deposition. In various embodiments, the dielectric layer includes an oxide of one or more valve metals.
摘要:
An integrated circuit device includes at least one test device and a stress generator coupled to the test device and operable to cycle the at least one test device to generate an AC stress. A method for testing an integrated circuit device including at least one test device and a stress generator coupled to the test device includes enabling the stress generator to cycle the at least one test device to generate an AC stress and measuring at least one parameter of the test device to determine an effect of the AC stress.
摘要:
An apparatus and method for a fast recovery rectifier structure. Specifically, the structure includes a substrate of a first dopant. A first epitaxial layer lightly doped with the first dopant is coupled to the substrate. A first metallization layer is coupled to the first epitaxial layer. A plurality of trenches is recessed into the first epitaxial layer, each of which is coupled to the metallization layer. The device also includes a plurality of wells each doped with a second dopant type, wherein each well is formed beneath and adjacent to a corresponding trench. A plurality of oxide layers is formed on walls and a bottom of a corresponding trench. A plurality of channel regions doped with the first dopant is formed within the first epitaxial layer between two corresponding wells. Each of the plurality of channel regions is more highly doped with the first dopant than the first epitaxial layer.
摘要:
A process for forming an NPT IGBT in a thin N type silicon wafer in which the bottom surface of a thin silicon wafer (100 microns thick or less) has a shallow reduced lifetime region in its bottom formed by a light species atom implant to a depth of less than about 2.5 microns. A P+ transparent collector region about 0.5 microns deep is formed in the bottom of the damaged region by a boron implant. A collector contact of Al/Ti/NiV and Ag is sputtered onto the collector region and is annealed at 200° C. to 400° C. for 30 to 60 minutes. A pre-anneal step before applying the collector metal can be carried out in vacuum at 300° C. to 400° C. for 30 to 60 seconds.
摘要:
An insulated gate trench type semiconductor device having L-shaped diffused regions, each diffused region having a vertically oriented portion and a horizontally oriented portion extending laterally from the vertically oriented portion, and a method for manufacturing the device in which the vertically oriented portion of each L-shaped diffused region is formed by directing dopants at an angle toward a sidewall of a trench to form the vertically oriented portion using the edge of the opposing sidewall of the trench as a mask.
摘要:
An ultrafast recovery diode. In a first embodiment, a rectifier device comprises a substrate of a first polarity, a lightly doped layer of the first polarity coupled to the substrate and a metallization layer disposed with the lightly doped layer. The ultrafast recovery diode includes a plurality of wells, separated from one another, formed in the lightly doped layer, comprising doping of a second polarity. The plurality of wells connect to the metallization layer. The ultrafast recovery diode further includes a plurality of regions, located between wells of said plurality of wells, more highly doped of the first polarity than the lightly doped layer.
摘要:
The collector or anode of a non-punch through IGBT formed in a float zone silicon wafer is formed by a P doped amorphous silicon layer deposited on the back surface of an ultra thin wafer. A DMOS structure is formed on the top surface of the wafer before the bottom structure is formed. A back contact is formed over the amorphous silicon layer. No alloy step is needed to activate the anode defined by the P type amorphous silicon.
摘要:
An insulated gate trench type semiconductor device having L-shaped diffused regions, each diffused region having a vertically oriented portion and a horizontally oriented portion extending laterally from the vertically oriented portion, and a method for manufacturing the device in which the vertically oriented portion of each L-shaped diffused region is formed by directing dopants at an angle toward a sidewall of a trench to form the vertically oriented portion using the edge of the opposing sidewall of the trench as a mask.
摘要:
A soft recovery diode is made by first implanting helium into the die to a location below the P/N junction and the implant annealed. An E-beam radiation process then is applied to the entire wafer and is also annealed. The diode then has very soft recovery characteristics without requiring heavy metal doping.