摘要:
A method of manufacturing a superjunction device includes providing a semiconductor wafer having a plurality of dies. A first plurality of trenches having a first orientation are formed in a first die. A second plurality of trenches having a second orientation are formed in a second die. The second orientation is different from the first orientation.
摘要:
An (R)-2-amino-1-phenylethanol derivative shown by the general formula (IIa) ##STR1## wherein R.sup.1 and R.sup.5 represent a hydrogen atom, etc.; R.sup.2, R.sup.3 and R.sup.4 independently represent a halogen atom, etc., or a salt thereof, can readily be produced (1) by permitting a microorganism belonging to the genus Rhodosporidium, the genus Comamonas or the like to act on a mixture of corresponding (R)-form and (S)-form to asymmetrically utilize, or (2) by permitting a microorganism belonging to the genus Lodderomyces, the genus Pilimelia or the like to act on a corresponding aminoketone derivative to asymmetrically reduce. An (R,R)-1-phenyl-2-�(2-phenyl-1-alkylethyl) amino!ethanol derivative having a high optical purity can easily be obtained from the compound of the formula (IIa) or a salt thereof. Said derivative is useful as an intermediate for producing an anti-obesity agent and so on.
摘要:
An (R)-2-amino-1-phenylethanol derivative shown by the general formula (IIa) ##STR1## wherein R.sup.1 and R.sup.5 represent a hydrogen atom, etc.; R.sup.2, R.sup.3 and R.sup.4 independently represent a halogen atom, etc., or a salt thereof, can readily be produced (1) by permitting a microorganism to act on a mixture of corresponding (R)-form and (S)-form to asymmetrically utilize, or (2) by permitting a microorganism to act on a corresponding aminoketone derivative to asymmetrically reduce. An (R,R)-1-phenyl-2-[(2-phenyl-1-alkylethyl) amino]ethanol derivative having a high optical purity can easily be obtained from the compound of the formula (IIa) or a salt thereof. Said derivative is useful as an intermediate for producing an anti-obesity agent.
摘要:
Provided is a method of manufacturing target substances with use of supercritical fluid chromatography, by which the following are achieved: solution of a problem at the time of sequential injections of samples containing the target substances; an increase of a treatment amount of separation per unit time; and improvement of efficiency in separation. The method includes the steps of: injecting the sample containing the target substances into a mobile phase; and returning composition of the mobile phase to a pre-change state after changing the composition of the mobile phase. The step of returning the composition of the mobile phase to the pre-change state after changing the composition of the mobile phase is performed during a period of time from detection of a peak of one of the target substances which is eluted latest from a column among the target substances separated by the supercritical fluid chromatography apparatus to injection of the next sample, whereby the problem is solved.
摘要:
A method of manufacturing a semiconductor device includes providing a semiconductor wafer and forming at least one first trench in the wafer having first and second sidewalls and a first orientation on the wafer. The first sidewall of the at least one first trench is implanted with a dopant of a first conductivity at a first implantation direction. The first sidewall of the at least one first trench is implanted with the dopant of the first conductivity at a second implantation direction. The second implantation direction is orthogonal to the first implantation direction. The first and second implantation directions are non-orthogonal to the first sidewall.
摘要:
A channel control unit of a storage apparatus is provided with: a variable-length DMA (Direct Memory Access) that performs data transfer of variable-length data sent to or received from the host computer in accordance with an I/O request; a fixed-length DMA that performs data transfer of fixed-length data to and from the cache memory; and a buffer intervening between the variable-length DMA and the fixed-length DMA. In performing the data transfer of the fixed-length data to the cache memory, the fixed-length DMA divides the variable-length data into multiple sets of the fixed-length data each having a data size equivalent to a unit size of data managed in the cache memory, and adds a first integrity code to the last fixed-length data set of the fixed-length data sets generated by the division, the first integrity code being generated based on the entire variable-length data.
摘要:
A method of manufacturing a semiconductor device includes providing a semiconductor wafer and forming at least one first trench in the wafer having first and second sidewalls and a first orientation on the wafer. The first sidewall of the at least one first trench is implanted with a dopant of a first conductivity at a first implantation direction. The first sidewall of the at least one first trench is implanted with the dopant of the first conductivity at a second implantation direction. The second implantation direction is orthogonal to the first implantation direction. The first and second implantation directions are non-orthogonal to the first sidewall.
摘要:
Methods for manufacturing trench type semiconductor devices involve refilling the trenches after high temperature processing steps are performed. The methods allow thermally unstable materials to be used as refill materials for the trenches of the device. Trench type semiconductor devices containing thermally unstable refill materials are also provided. In particular, methods of manufacturing and devices of a trench type semiconductor devices containing organic refill materials are provided.