Abstract:
Described herein is a method for simulating a three-dimensional spatial intensity distribution of radiation formed within a resist layer on a substrate resulting from an incident radiation, the method comprising: calculating an incoherent sum of forward propagating radiation in the resist layer and backward propagating radiation in the resist layer; calculating an interference of the forward propagating radiation in the resist layer and the backward propagating radiation in the resist layer; and calculating the three-dimensional spatial intensity distribution of radiation from the incoherent sum and the interference.
Abstract:
A process for generating social recommendations is provided. For each user, a user profile index is accessed to determine reading interests of the user. Further, relevance matching is performed to determine matching users having at least one publishing interest that is relevant to the reading interests of the user. Next, the matching users are ranked. Based on the ranking, one or more top ranked matching user(s) are determined. Additionally, a social recommendation for each of the top ranked matching user(s) is enabled to be made to the user.
Abstract:
A carbon nanotube field emitter is disclosed. The carbon nanotube field emitter includes an emission portion and a supporting portion. The emission portion and the supporting portion are configured as one piece to form a roll structure. The emission portion includes a first rolled carbon nanotube layer, which includes a number of carbon nanotubes. The supporting portion includes a rolled composite layer, which includes at least one second rolled carbon nanotube layer and a rolled metal layer stacked with each other. Another carbon nanotube field emitter with a number of separated emission tips on the emission portion is also disclosed.
Abstract:
The present application relates to a method for making a carbon nanotube field emitter. A carbon nanotube film is drawn from the carbon nanotube array by a drawing tool. The carbon nanotube film includes a triangle region. A portion of the carbon nanotube film closed to the drawing tool is treated into a carbon nanotube wire including a vertex of the triangle region. The triangle region is cut from the carbon nanotube film by a laser beam along a cutting line. A distance between the vertex of the triangle region and the cutting line can be in a range from about 10 microns to about 5 millimeters.
Abstract:
The present invention discloses a new anti-tumor medicament comprising a mutant of endostatin. The mutant comprises a mutation in the ATP-binding site of endostatin and has a decreased ATPase activity and an increased anti-angiogenesis activity.
Abstract:
Modern coding and modulation techniques have greatly improved the transmission and reception of signals. A method is described including receiving a signal de-mapping the signal into a first and second substream, decoding the first and second substream using a low density parity check decoding process, and combining the first and second decoded substream into a single data stream. An apparatus is described including a symbol de-mapper that receives a signal de-maps the modulation symbols in the signal into a first and second substream, a first decoder that decodes the first substream using a low density parity check coding process at a first decoding rate, a second decoder that decodes the second substream at a second encoding rate, and a combiner that combines the first substream and the second substream into a single data stream.
Abstract:
A semiconductor package is assembled using first and second lead frames. The first lead frame includes a die flag and the second lead frame includes lead fingers. When the first and second lead frames are mated, the lead fingers surround the die flag. Side surfaces of the die flag are partially etched to form an extended die attach surface on the die flag, and portions of the top surface of each of the lead fingers also are partially etched to form lead finger surfaces that are complementary with the etched side surfaces of the die flag. A semiconductor die is attached to the extended die attach surface and bond pads of the semiconductor die are electrically connected to the lead fingers. An encapsulating material covers the die, electrical connections, and top surfaces of the die flag and lead fingers.
Abstract:
A process for generating social recommendations is provided. For each user, a user profile index is accessed to determine reading interests of the user. Further, relevance matching is performed to determine matching users having at least one publishing interest that is relevant to the reading interests of the user. Next, the matching users are ranked. Based on the ranking, one or more top ranked matching user(s) are determined. Additionally, a social recommendation for each of the top ranked matching user(s) is enabled to be made to the user.
Abstract:
Methods for calibrating a photolithographic system are disclosed. A cold lens contour for a reticle design and at least one hot lens contour for the reticle design are generated from which a process window is defined. Aberrations induced by a lens manipulator are characterized in a manipulator model and the process window is optimized using the manipulator model. Aberrations are characterized by identifying variations in critical dimensions caused by lens manipulation for a plurality of manipulator settings and by modeling behavior of the manipulator as a relationship between manipulator settings and aberrations. The process window may be optimized by minimizing a cost function for a set of critical locations.
Abstract:
A clamp mechanism for clamping a heat sink is disclosed in the present invention. The clamp mechanism includes a base. An accommodating space is formed on a side of the base, and the accommodating space is for accommodating the heat sink. The clamp mechanism further includes at least one constraining component pivoted to the base for engaging with an engaging portion of the heat sink, so as to fix the heat sink inside the accommodating space. The clamp mechanism further includes at least one contacting component pivoted to the base for buckling a hook of the heat sink when pivoting relative to the base, so as to rotate the hook relative to a shaft of the heat sink.