摘要:
A semiconductor device includes first, second, and third semiconductor layers each having multiple diffusion layers. The first direction widths of the first diffusion layers are the same. The amount of impurity within the first diffusion layers gradually increases from the bottom end towards the top end of the first semiconductor layer. The first direction widths of the second diffusion layers are the same. The amounts of impurity within the second diffusion layers are the same. The first direction widths of the third diffusion layers are narrower than the first direction widths of the first diffusion layers and the first direction widths of the second diffusion layers at the same level, and gradually become narrower from the bottom end towards the top end of the third semiconductor layer. The amount of impurity within the third diffusion layers are the same.
摘要:
A power semiconductor device includes a first semiconductor layer of a first conductivity type, a second semiconductor layer provided thereon, mutually separated columnar third semiconductor layers of a second conductivity type extending within the second semiconductor layer, island-like fourth semiconductor layers of the second conductivity type provided on the third semiconductor layers, fifth semiconductor layers of the first conductivity type, sixth semiconductor layers of the second conductivity type, a gate electrode, a first electrode, and a second electrode. The fifth semiconductor layers are selectively provided on the fourth semiconductor layers. The sixth semiconductor layer electrically connects two adjacent fourth semiconductor layers. The first electrode is in electrical connection with the first semiconductor. The second electrode is in electrical connection with the fourth semiconductor layers and the fifth semiconductor layers via the openings in the gate electrode.
摘要:
The invention provides a method for producing a carbon material as a negative electrode active material that can dope and undope a sodium ion. The production method of a carbon material for a sodium secondary battery includes a step of heating at a temperature of 800 to 2500° C. a compound according to Formula (1), Formula (2) or Formula (3), and having 2 or more oxygen atoms, or a mixture of an aromatic derivative 1 having an oxygen atom in the molecule and an aromatic derivative 2 having a carboxyl group in the molecule and being different from the aromatic derivative 1.
摘要:
A power semiconductor device includes a high resistance epitaxial layer having a first pillar region and a second pillar region as a drift layer. The first pillar region includes a plurality of first pillars of the first conductivity type and a plurality of second pillars of the second conductivity type disposed alternately along a first direction. The second pillar region is adjacent to the first pillar region along the first direction. The second pillar region includes a third pillar and a fourth pillar of a conductivity type opposite to a conductivity type of the third pillar. A net quantity of impurities in the third pillar is less than a net quantity of impurities in each of the plurality of first pillars. A net quantity of impurities in the fourth pillar is less than the net quantity of impurities in the third pillar.
摘要:
A process for producing a carbon material comprising the following steps (A) and (B): Step (A): a step of reacting a compound represented by the formula (1): wherein R represents a hydrogen atom etc., R′ represents a hydrogen atom etc., and n represents 3, 5 or 7, with an aldehyde compound to obtain a polymer, Step (B): a step of heating the polymer obtained in Step (A) at 600 to 3000° C. under an inert gas atmosphere.
摘要:
A microactuator has a fixed portion and a movable portion that is provided in such a way as to be movable relative to the fixed portion between a first position at which it is in contact with a predetermined portion of the fixed portion and a second position away from the first position. The fixed portion has a first electrode portion, the movable portion has a second electrode portion that can produce an electrostatic force between it and the first electrode portion by a voltage between it and the first electrode portion, and the first and second electrode portions are arranged in such a way that a first force that biases the movable portion in a direction toward the first position according to the electrostatic force created when the voltage is constant reaches a peak when the movable portion is at a third position between the first position and the second position.
摘要:
A digitized luminance signal, representing the luminance component of a picture signal, is adjusted according to data stored in a memory. The data are output according to the value of the digitized luminance signal and multiplied by a weighting signal generated according to the amount of black area represented by the digitized luminance signal. The digitized luminance signal is then multiplied by a value obtained from the weighted product data. Use of the weighting signal enables the luminance scale to be stretched and compressed according to various different control characteristics without the need to store separate data for each characteristic in the memory.
摘要:
The light guide substrate 2 has mirror receiving grooves 24 and light guides. The light guides conduct light that is input into the input ports to selected output ports in accordance with the advance and retraction of the mirrors 31 with respect to the grooves 24. The actuator substrate 4 has mirrors 31 and actuators which place the mirrors 31 in a state in which the mirrors are drawn in toward the substrate 4, or a state in which the mirrors protrude from the substrate 4. The light guide substrate 2 and actuator substrate 4 are aligned using alignment marks and joined with a spacer 3 interposed so that the mirrors 31 retract from the grooves 24 when the mirrors 31 are drawn in toward the substrate 4, and so that the mirrors 31 advance into the grooves 24 when the mirrors 31 protrude from the substrate 4. This alignment is performed in a state in which all of the mirrors 31 are drawn in toward the substrate 4.
摘要:
An insecticidal compound of the formula ##STR1## wherein A completes a 5 or 6 membered aromatic ring selected from the group pyridyl, pyridyl substituted with C.sub.1-5 alkyl, C.sub.1-5 haloalkyl, C.sub.1-5 alkoxy, C.sub.1-5 alkylthio, C.sub.1-5 alkylsulfonyl, cyano, halogen, phenoxy or C.sub.1-5 dialkylamino, pyrazinyl, pyrazinyl substituted with C.sub.1-5 alkyl or halogen, pyrazolyl substitited with C.sub.1-5 alkyl, pyridazyl substituted with halogen, or thiazolyl substituted with halogen or C.sub.1-5 alkyl;R.sub.1 is hydrogen or C.sub.1-5 alkyl, C.sub.1-5 haloalkyl, C.sub.1-5 alkoxy, C.sub.1-5 alkylthio, C.sub.1-5 alkylsulfonyl, cyano, halogen, phenoxy, or C.sub.1-5 dialkylamino;X is substituted or unsubstituted C.sub.1-3 alkylene or C.sub.1-3 alkylidene;R.sub.2 is hydrogen, monoalkylcarbamoyl, C.sub.1-5 dialkylcarbamoyl, C.sub.1-5 alkoyl, C.sub.1-5 alkyl substituted with halogen, C.sub.1-5 alkoxy, C.sub.1-5 alkylthio, C.sub.1-5 alkoxycarbonyl, cyano, aryl, haloaryl, C.sub.1-5 alkoxyaryl, furyl, thienyl, pyridyl, halopyridyl, thiazolyl or halothiazolyl, C.sub.2-5 alkyenyl, C.sub.2-5 alkynyl, C.sub.3-6 cycloalkyl, aryl, or the radical--Y--R.sub.5and an insecticidal acceptable salt thereof.
摘要:
Compounds represented by general formulas (I) and (II), useful as the intermediates for agricultural chemicals, particularly herbicidal compounds, wherein R.sup.1 and R.sup.2 represent each hydrogen, alkyl or COOR.sup.3 :R.sup.3 represents alkyl: and R.sup.4 represents alkyl.