1756 results about "Concentration gradient" patented technology

The present disclosure provides a carrier channel with an element concentration gradient distribution. The carrier channel includes a substrate and a carrier channel structure. The carrier channel structure is stacked on the substrate, wherein a ratio of a height and a width of the carrier channel is greater than 1, and the carrier channel is crystallized from the contact surface by a rapid melting growth process, thus the carrier channel structure has the element concentration gradient distribution.

A single photon avalanche diode for use in a CMOS integrated circuit includes a deep n-well region formed above a p-type substrate and an n-well region formed above and in contact with the deep n-well region. A cathode contact is connected to the n-well region via a heavily doped n-type implant. A lightly doped region forms a guard ring around the n-well and deep n-well regions. A p-well region is adjacent to the lightly doped region. An anode contact is connected to the p-well region via a heavily doped p-type implant. The junction between the bottom of the deep n-well region and the substrate forms a multiplication region when an appropriate bias voltage is applied between the anode and cathode and the guard ring breakdown voltage is controlled with appropriate control of the lateral doping concentration gradient such that the breakdown voltage is higher than that of the multiplication region.

A high-voltage transistor includes first and second trenches that define a mesa in a semiconductor substrate. First and second field plate members are respectively disposed in the first and second trenches, with each of the first and second field plate members being separated from the mesa by a dielectric layer. The mesa includes a plurality of sections, each section having a substantially constant doping concentration gradient, the gradient of one section being at least 10% greater than the gradient of another section. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Methods are disclosed for providing a library of composite compositions on a support. The method involves depositing one or more components onto the support on either discrete spaced regions of the support or as a continuous concentration gradients on the surface of the support. The composite samples can be removed from the support by drilling out portions of the coated support so as to yield individual composite tablets containing the support with one or more component layers thereon. By using this method, a vast number of composites can be made and tested simultaneously.

A dressing for promoting healing and pain relief of the body of a living organism having a pathologic condition has at least one layer of conductive material having a resistance no greater than 1000 Ω / cm2. When placed proximate a portion of the body of the living organism suffering from the pathologic condition, the dressing alters the electrodynamic processes occurring in conjunction with said pathologic condition to promote healing and pain relief in the living organism. When used as a wound dressing, the conductive material is placed in contact with tissue around the periphery of the wound and with the wound, lowering the electrical potential and resistance of the wound and increasing the wound current. In an exemplary embodiment, the conductive material is a multi-ply nylon fabric plated with silver by an autocatalytic electroless plating process and with the plies in electrical continuity. The dressing provides an antimicrobial and analgesic effect. The dressing may be provided for numerous applications and may include other layers such as an absorbent layer, a semi-permeable layer and additional layer of conductor material. Multilaminate embodiments of the present invention exhibit conductive material concentration gradients and, potentially, a capacitive effect when sequential conductor layers are insulated by intervening layers.