摘要:
The present invention provides an antifouling coating material which can be used to form an antifouling coating film excellent in long-term antifouling performance and physical properties, and which is excellent in long-term storage stability. The present invention provides an antifouling coating composition containing a copolymer [A] obtained by copolymerizing a monomer represented by a general formula (1) (wherein, X represents acryloyloxy, methacryloyloxy, crotonoyloxy, or isocrotonoyloxy, R1 represents a hydrogen atom or methyl, and R2 represents an alkyl group having a carbon number of 1 to 6), and a polymerizable monomer represented by a general formula (2) (wherein, R3 represents a hydrogen atom or methyl, R4 represents an alkyl group having a carbon number of 1 to 10, or an alkyl group having a carbon number of 2 to 5 to which an alkoxy group having a carbon number of 1 to 4 is bonded.).
摘要:
A semiconductor device including a plurality of cells having an antenna protection element and a cell other than the antenna protection element; and a first dummy pattern and a second dummy pattern arranged in a layer above the plurality of cells. Further, the first dummy pattern overlaps with the antenna protection element, the second dummy pattern overlaps with the cell other than the antenna protection element, and a first layout rule of the first dummy pattern is different from a second layout rule of the second dummy pattern.
摘要:
Circuit data on a semiconductor integrated circuit, design constraints as to design of the semiconductor integrated circuit, air gap information on air gap creation in the circuit data, and an air gap volume constraint specifying an allowable range for an air gap volume value are received. The sum total of the values of the volumes of air gaps created in the circuit data according to the air gap information is calculated. Upon detection that the calculated sum total of the air gap volume values falls outside the allowable range specified by the air gap volume constraint, the circuit data is optimized so that the design constraints are satisfied and the sum total of the air gap volume values falls within the allowable range.
摘要:
A method is provided for designing a wiring structure of a wiring layer of a semiconductor integrated circuit device. The method includes a wire width detecting step of detecting a wire width of each wire in a wiring pattern of layout data, a wire identifying step of identifying a wire having a predetermined wire width or more based on a result of detection by the wire width detecting step, a wiring pitch detecting step of detecting a wiring pitch between the wire identified by the wire identifying step and another wire, and an air gap-forbidden region forming and removing step of forming or removing an air gap-forbidden region, depending on a result of detection by the wiring pitch detecting step.
摘要:
In design of particularly large-scale, complicated semi-conductor circuits, a two-dimensional graph is prepared with Si, for example, as one axis and Sj+Wmax+T as the other axis where T is a clock cycle, Wmax is the maximum delay of a circuit portion to be subjected to signal delay analysis, and Si and Sj are clock timings to registers to serve as an input and an output of the circuit portion. The delay analysis results of the circuit portion are plotted on the two-dimensional graph. Also, a two-dimensional graph is prepared with Si, for example, as one axis and Sj−Wmin as the other axis where Wmin is the minimum delay of the circuit portion, and the delay analysis results of the circuit portion are plotted on this two-dimensional graph. Using the resultant two-dimensional graph, therefore, it is possible to provide the cause or an indication for design improvement of the clock circuit, a hold error, and a set-up error.
摘要:
An insulating circuit board includes an insulating plate, a circuit board joined to a first surface of the insulating plate, and a metal plate joined to a second surface of the insulating plate. The circuit board is formed from an Al alloy having a purity of 99.98% or more or pure Al, and the metal plate is formed from an Al alloy having a purity of 98.00% or more and 99.90% or less. The thickness (a) of the circuit board is 0.2 mm or more and 0.8 mm or less, the thickness (b) of the metal plate is 0.6 mm or more and 1.5 mm or less, and the thicknesses satisfy the expression of a/b≦1. An insulating circuit board having a cooling sink includes cooling sink joined via a second solder layer. The second solder layer contains Sn as its main component, and has a Young's modulus, 35 GPa or more, a 0.2% proof stress of, 30 MPa or more, and a tensile strength of, 40 MPa or more. The cooling sink is formed from, pure Al or an Al alloy.
摘要翻译:绝缘电路板包括绝缘板,连接到绝缘板的第一表面的电路板和连接到绝缘板的第二表面的金属板。 电路板由纯度为99.98%以上的Al合金或纯Al形成,金属板由纯度为98.00%以上且99.90%以下的Al合金形成。 电路板的厚度(a)为0.2mm以上且0.8mm以下,金属板的厚度(b)为0.6mm以上且1.5mm以下,厚度满足a / b <= 1。 具有冷却槽的绝缘电路板包括通过第二焊料层接合的冷却水槽。 第二焊料层含有Sn作为其主要成分,杨氏模量为35GPa以上,0.2%屈服应力为30MPa以上,拉伸强度为40MPa以上。 冷却槽由纯Al或Al合金形成。
摘要:
In a layout designing operation of LSI, while repetitions as to a timing improvement and a retry of layout designing are suppressed, a designing term is shortened. An automatic layout method of a semiconductor integrated circuit is comprised of: an initial arranging step for initially arranging a logic cell which constitutes the logic circuit; an placement base circuit optimizing step for applying a margin of a constant length to a wiring line length obtained from an placement so as to improve timing; an placement change restriction calculating step for calculating an placement change restriction corresponding to the margin of the constant length; and an incremental arranging step in which when a logic cell placement of a corrected logic circuit is improved, an placement improvement having the placement change restriction calculated based upon the placement change restriction calculating step is carried out.
摘要:
In design of particularly large-scale, complicated semiconductor circuits, a two-dimensional graph is prepared with Si, for example, as one axis and Sj+Wmax+T as the other axis where T is a clock cycle, Wmax is the maximum delay of a circuit portion to be subjected to signal delay analysis, and Si and Sj are clock timings to registers to serve as an input and an output of the circuit portion. The delay analysis results of the circuit portion are plotted on the two-dimensional graph. Also, a two-dimensional graph is prepared with Si, for example, as one axis and Sj−Wmin as the other axis where Wmin is the minimum delay of the circuit portion, and the delay analysis results of the circuit portion are plotted on this two-dimensional graph. Using the resultant two-dimensional graph, therefore, it is possible to provide the cause or an indication for design improvement of the clock circuit, a hold error, and a set-up error.
摘要:
Based on the arrangement of a plurality of synchronous devices in an integrated circuit or on timing constraints, a group of discrete clock delay values composed of a finite number of discrete values to be allocated as respective clock delay values to the individual synchronous devices is determined. Then, the clock delay value selected from the group of discrete clock delay values is allocated as a selected clock delay value to each of the synchronous devices, while the operation of the integrated circuit is ensured. Thereafter, a clock circuit for supplying a clock signal to each of the synchronous devices in accordance with the selected clock delay value is designed.
摘要:
Circuit data on a semiconductor integrated circuit, design constraints as to design of the semiconductor integrated circuit, air gap information on air gap creation in the circuit data, and an air gap volume constraint specifying an allowable range for an air gap volume value are received. The sum total of the values of the volumes of air gaps created in the circuit data according to the air gap information is calculated. Upon detection that the calculated sum total of the air gap volume values falls outside the allowable range specified by the air gap volume constraint, the circuit data is optimized so that the design constraints are satisfied and the sum total of the air gap volume values falls within the allowable range.