四川盆地应以寻找局部层间氧化带砂岩型铀矿为主。
It should mainly seek local interlayered oxidized zone sand type uranium deposit in SiChuan basin.
受盆地构造演化特征的影响，盆地内铀矿化存在两种类型，即潜水氧化带型和局部性层间氧化带型。
Features of tectonic evolution resulted in the development of two type uranium mineralizations in the basin, I e. phreatic oxidation and local interlayer oxidation types.
再加上因为通道尖角造成的局部大电场会对穿隧氧化层造成极大的伤害，所以特性并不理想。
The traps are easily generated because of poor quality of TEOS. Besides, high electric field due to the horn of the channel could seriously damage the tunneling oxide.
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