INDUSTRIAL HIGH CONCENTRATION DUST COLLECTOR

Brand	Owner	Address	Description
MAXITUBE	AIREAU QUALITÉ CONTRÔLE INC.	660, rue de la Sablière Bois-des-Filion Québec J6Z4T7 Canada	Industrial high-concentration dust collector, namely, dust separators;MAXI TUBE;Industrial high-concentration dust collector, namely, industrial scrubbers for removing dust particulates from air during industrial processing;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A bipolar type semiconductor device capable of attaining high current gain and high cut-off frequency and performing a satisfactory transistor operation also in a high current region while maintaining a high breakdown voltage performance, as well as a method of manufacturing the semiconductor device, are provided. In a collector comprising a first semiconductor layer and a second semiconductor layer narrower in band gap than the first semiconductor layer, an impurity is doped so as to have a peak of impurity concentration within the second collector layer and so that the value of the peak is higher than the impurity concentration at any position within the first collector layer. It is preferable to adjust the concentration of the doped impurity in such a manner that a collector-base depletion layer extends up to the first collector layer.