摘要:
A gas sensor has a housing, a gas sensing element held by the housing and having a gas contact portion and an element cover for covering the gas contact portion. The element cover has a double pipe structure formed by layering an outer pipe and an inner pipe. The outer pipe has an outer bottom portion having an outer bottom hole and an outer side portion having plural outer side holes. The inner pipe has an inner bottom portion having an inner bottom hole and an inner side portion having plural inner side holes disposed not to overlap the outer side holes. A spacing D of 0.2-1.0 mm is formed between the outer bottom portion and the inner bottom portion. As a result, flow resistance in the spacing D is relatively high, and the sample gas sufficiently and more smoothly flows toward the gas sensing element. Therefore, the element cover prevents condensed water from entering the inside of the gas sensor and improves response of the gas sensor.
摘要:
An element larger than silicon is ion-implanted to a contact liner in an N-channel region to break constituent atoms of the contact liner in the N-channel region. An element larger than silicon is ion-implanted to the contact liner in a P-channel region to break constituent atoms of the contact liner, oxygen or the like is ion-implanted. Thereafter, heat treatment is performed to cause shrinkage of the contact liner in the N-channel region to form an n-channel contact liner, and to cause expansion of the contact liner in the P-channel region to form a p-channel contact liner.
摘要:
A first film and a second film are formed on a semiconductor substrate in this order. A resist pattern is formed on the second film. An opening is formed by removing the second film exposed between the resist pattern at a state where the second film remains on the bottom. A first removal preventing film is formed on the side wall of the opening and the residual film is removed at a state where the projecting part of the second film protruding from the sidewall to the opening remains. The first film exposed in the opening is removed. A second removal preventing film is formed on the first removal preventing film and the surface of the semiconductor substrate exposed in the opening is removed at a state where the projecting part of the semiconductor substrate protruding from the side wall to the opening remains and a round part is formed at the projecting part of the semiconductor substrate. The semiconductor substrate exposed in the opening is further removed.
摘要:
The semiconductor comprises an n-channel transistor forming region and a p-channel transistor forming region, which are disposed while being sectioned by an element isolation region. The stress caused by contact plugs in the n-channel transistor forming region and the stress caused by contact plugs in the p-channel transistor forming region are made different from each other. With this, it enables to increase the drive current of both the n-channel transistor and p-channel transistor without changing the dimensions of the active region and the element isolation region.
摘要:
The semiconductor comprises an n-channel transistor forming region and a p-channel transistor forming region, which are disposed while being sectioned by an element isolation region. The stress caused by contact plugs in the n-channel transistor forming region and the stress caused by contact plugs in the p-channel transistor forming region are made different from each other. With this, it enables to increase the drive current of both the n-channel transistor and p-channel transistor without changing the dimensions of the active region and the element isolation region.
摘要:
A first film and a second film are formed on a semiconductor substrate in this order. A resist pattern is formed on the second film. An opening is formed by removing the second film exposed between the resist pattern at a state where the second film remains on the bottom. A first removal preventing film is formed on the side wall of the opening and the residual film is removed at a state where the projecting part of the second film protruding from the sidewall to the opening remains. The first film exposed in the opening is removed. A second removal preventing film is formed on the first removal preventing film and the surface of the semiconductor substrate exposed in the opening is removed at a state where the projecting part of the semiconductor substrate protruding from the side wall to the opening remains and a round part is formed at the projecting part of the semiconductor substrate. The semiconductor substrate exposed in the opening is further removed.
摘要:
A liquid starch solution suitable for saccharification into a maltose-containing product is obtained by suspending starch in water, adding to the starch suspension a heat resistant .alpha.-amylase and a buffer, adjusting the resultant mixture to a pH value in the range of from 7.5 to 8.0, and thermally treating the resultant starch milk while repressing possible hydrolysis of starch molecules.
摘要:
A method of manufacturing a cellulose/gelatin composite viscose rayon filament that is characterized by including a process in which a spinning process is carried out while a viscose spinning solution is mixed with a gelatin crosslinking solution, which makes it possible to produce a cellulose/gelatin composite viscose rayon having uniform strength and elongation without yarn disconnection.
摘要:
The semiconductor comprises an n-channel transistor forming region and a p-channel transistor forming region, which are disposed while being sectioned by an element isolation region. The stress caused by contact plugs in the n-channel transistor forming region and the stress caused by contact plugs in the p-channel transistor forming region are made different from each other. With this, it enables to increase the drive current of both the n-channel transistor and p-channel transistor without changing the dimensions of the active region and the element isolation region.
摘要:
Decreases in the volume of intake air to an engine in response to environmental changes results in an increase in amount of PM emissions. In view of this situation, a correction coefficient of fuel supply interval is calculated based on the variation in amount of PM emissions to adjust a reference fuel supply interval in order to determine an target fuel supply interval. By adjusting the fuel supply interval, a fuel supply amount appropriate to the variation in amount of PM emissions, thereby preventing clogging of the injection hole of a supplemental fuel valve, while maintaining fuel economy.