Chaowei
Chaowei Li, Beijing CN
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20130017661 | METHOD FOR FABRICATING A SEMICONDUCTOR DEVICEAANM WEI; QINGSONGAACI BeijingAACO CNAAGP WEI; QINGSONG Beijing CNAANM He; YONGGENAACI BeijingAACO CNAAGP He; YONGGEN Beijing CNAANM Liu; HUANXINAACI BeijingAACO CNAAGP Liu; HUANXIN Beijing CNAANM Liu; JialeiAACI BeijingAACO CNAAGP Liu; Jialei Beijing CNAANM Li; ChaoweiAACI BeijingAACO CNAAGP Li; Chaowei Beijing CN - A method of fabricating semiconductor device includes forming a recess having a substantially rectangular section and forming an oxide layer on sidewalls and an oxide layer on a bottom of the recess by anisotropic oxidation, wherein the oxide layer on the sidewalls is thinner than the oxide layer on the bottom of recess. The method further includes completely removing the oxide layer on the sidewalls and partially removing the oxide layer on the bottom of the recess. The method also includes performing an orientation selective wet etching on the recess using a remaining oxide layer of the recess as a stop layer to shape the sidewalls into a Σ shaped section. The method includes removing the remaining oxide layer using an isotropic wet etching. | 01-17-2013 |
Chaowei Li, Shenzhen CN
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20140053087 | Friend recommendation method, apparatus and storage medium - Disclosed is a friend recommendation method, comprising: creating a recommendation backlist for a user; deleting a recommended object included in the recommendation backlist of the user from a recommended object list; and recommending remaining recommended objects in the recommended object list to the user. The present application further discloses a server and a storage medium, so as to recommend friends based on the requirements of a user and recommend objects that the user is really interested in. Therefore, the accuracy and efficiency of friend recommendation are improved, friends can be recommended effectively and the user experience is enhanced. | 02-20-2014 |
Chaowei Liu, Beijing CN
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20150175432 | MAGNESIUM MODIFIED ULTRA-STABLE RARE EARTH Y-TYPE MOLECULAR SIEVE AND PREPARATION METHOD THEREFOR - The present invention provides a magnesium-modified ultra-stable rare earth type Y molecular sieve and the preparation method thereof, which method is carried out by subjecting a NaY molecular sieve as the raw material to a rare earth exchange and a dispersing pre-exchange, then to an ultra-stabilization calcination treatment, and finally to a magnesium modification. The molecular sieve comprises 0.2 to 5% by weight of magnesium oxide, 1 to 20% by weight of rare earth oxide, and not more than 1.2% by weight of sodium oxide, and has a crystallinity of 46 to 63%, and a lattice parameter of 2.454 nm to 2.471 nm. In contrast to the prior art, in the molecular sieve prepared by this method, rare earth ions are located in sodalite cages, which is demonstrated by the fact that no rare earth ion is lost during the reverse exchange process. Moreover, the molecular sieve prepared by such a method has a molecular particle size D(v,0.5) of not more than 3.0 μm and a D(v,0.9) of not more than 20 μm. Such a molecular sieve has both high stability and high selectivity for the target product, while cracking catalysts using the molecular sieve as an active component is characterized by a high heavy-oil-conversion capacity and a high yield of valuable target products. | 06-25-2015 |
Chaowei Wang, Beijing CN
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20130322396 | METHOD AND APPARATUS FOR COORDINATING INTERFERENCE ON USER EQUIPMENT - Embodiments of the disclosure provide a method an apparatus for coordinating interference on a user equipment, the user equipment being served by a serving base station and interfered by an interfering base station. The method comprising steps of requesting for a limited access to the interfering base station; and responsive to an acknowledge message from the interfering base station, transmitting interference coordination information to the interfering base station. | 12-05-2013 |