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1.发明授权公开(公告)号：US06392919B1
公开(公告)日：2002-05-21
申请号：US09855040
申请日：2001-05-14
IPC分类号： G11C1122
CPC分类号： H01L28/55
摘要： A method for reducing imprint in a ferroelectric device which includes the steps of: applying a signal having a bipolar pulse shape for a predetermined time to the ferroelectric device; and decreasing the signal amplitude gradually in predetermined intervals of time and amplitude. Preferably, the bipolar shape signal is a sinusoidal wave, a square wave, or a sawtooth wave and the ferroelectric device is a capacitor of a memory cell in a computer. Also provided is an apparatus for reducing imprint in a ferroelectric device.
摘要翻译： 一种用于减小铁电体器件中的压印的方法，包括以下步骤：将具有双极脉冲形状的信号预定时间施加到铁电体器件; 并以预定的时间和幅度间隔逐渐降低信号幅度。 优选地，双极形状信号是正弦波，方波或锯齿波，并且铁电体装置是计算机中的存储单元的电容器。 还提供了用于减小铁电体装置中的印记的装置。
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2.发明授权公开(公告)号：US06294393B1
公开(公告)日：2001-09-25
申请号：US09644222
申请日：2000-08-23
IPC分类号： H01L2100
CPC分类号： H01L28/55
摘要： A method for reducing imprint in a ferroelectric device which includes the steps of: applying a signal having a bipolar pulse shape for a predetermined time to the ferroelectric device; and decreasing the signal amplitude gradually in predetermined intervals of time and amplitude. Preferably, the bipolar shape signal is a sinusoidal wave, a square wave, or a sawtooth wave and the ferroelectric device is a capacitor or a memory cell in a computer. Also provided is an apparatus for reducing imprint in a ferroelectric device.
摘要翻译： 一种用于减小铁电体器件中的压印的方法，包括以下步骤：将具有双极脉冲形状的信号预定时间施加到铁电体器件; 并以预定的时间和幅度间隔逐渐降低信号幅度。 优选地，双极形状信号是正弦波，方波或锯齿波，并且铁电装置是计算机中的电容器或存储单元。 还提供了用于减小铁电体装置中的印记的装置。
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公开(公告)号：US5116590A
公开(公告)日：1992-05-26
申请号：US727202
申请日：1991-07-09
CPC分类号： C01B39/205 , B01J29/70 , B01J2229/26 , B01J2229/42 , Y10S423/21
摘要： A synthetic large pore crystalline metalsilicate zeolite composition, designated as ECR-35, having the formula, expressed in term of mole ratio of oxides: ##STR1## where T is an organic cation selected from the group consisting of tetraethylammonium and methyltriethyl ammonium, and mixtures thereof and X is Al or Ga; wherein the composition consists of an X-ray diffraction pattern having the line intensities:______________________________________ Line # d(.ANG.) Intensity ______________________________________ (1) 15.00 .+-. 0.2 weak to very strong (2) 14.20 .+-. 0.2 very strong (3) 13.40 .+-. 0.2 weak to medium (4) 8.70 .+-. 0.2 medium (5) 8.03 .+-. 0.2 zero to medium (6) 7.40 .+-. 0.15 medium (7) 5.65 .+-. 0.15 medium-strong ______________________________________ and wherein the intensity of line (2) is greater than line (1) which is substantially greater than the intensity of line (3); and wherein the intensity of line (4) is substantially greater than the intensity of line (6) which is greater than the intensity of line (5) and a method for preparing same.
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