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    • 3. 发明授权
    • Differential gate oxide process by depressing or enhancing oxidation
rate for mixed 3/5 V CMOS process
    • 通过抑制或提高混合3/5 V CMOS工艺的氧化速率的差分栅极氧化工艺
    • US5480828A
    • 1996-01-02
    • US316084
    • 1994-09-30
    • Shun-Liang HsuJyh-Min TsaurMou S. LinJyh-Kang Ting
    • Shun-Liang HsuJyh-Min TsaurMou S. LinJyh-Kang Ting
    • H01L21/8234
    • H01L21/823462Y10S148/116Y10S438/981
    • A new method of simultaneously forming differential gate oxide for both 3 and 5 V transistors is described. A sacrificial silicon oxide layer is formed on the surface of a semiconductor substrate. Ions are implanted through the sacrificial silicon oxide layer into the planned 3 V transistor area of the semiconductor substrate wherein the implanted ions depress the oxidation rate of the semiconductor substrate. Alternatively, ions are implanted through the sacrificial silicon oxide layer into the planned 5 V transistor area of the semiconductor substrate wherein the implanted ions increase the oxidation rate of the semiconductor substrate. The sacrificial silicon oxide layer is removed and a layer of gate silicon oxide is grown on the surface of the semiconductor substrate. The growth rate of the gate silicon oxide will be slowed in the planned 3 V transistor area or will be increased in the planned 5 V transistor area resulting in a gate silicon oxide layer which is relatively thinner in the planned 3 V transistor area and relatively thicker in the planned 5 V transistor area. A layer of polysilicon is deposited over the gate silicon oxide layer and patterned to form gate electrodes for the 3V and 5V transistors.
    • 描述了同时形成3和5 V晶体管的差分栅极氧化物的新方法。 牺牲氧化硅层形成在半导体衬底的表面上。 离子通过牺牲氧化硅层注入到半导体衬底的预定的3V晶体管区域中,其中注入的离子降低半导体衬底的氧化速率。 或者,离子通过牺牲氧化硅层注入到半导体衬底的预定的5V晶体管区域中,其中注入的离子增加了半导体衬底的氧化速率。 去除牺牲氧化硅层,并在半导体衬底的表面上生长栅极氧化硅层。 栅极氧化硅的生长速率将在预定的3 V晶体管面积中减慢,或者将在计划的5 V晶体管区域中增加,从而导致栅极氧化硅层在计划的3 V晶体管区域中相对较薄,并且相对较厚 在计划的5 V晶体管区域。 一层多晶硅沉积在栅极氧化硅层上并被图案化以形成用于3V和5V晶体管的栅电极。
    • 7. 发明授权
    • Layout pattern for improved MOS device matching
    • 改善MOS器件匹配的布局图案
    • US06169314A
    • 2001-01-02
    • US09345358
    • 1999-07-01
    • Shyh-Chyi WongPin-Nan TsengJyh-Kang Ting
    • Shyh-Chyi WongPin-Nan TsengJyh-Kang Ting
    • H01L2976
    • H01L27/0207H01L27/0203H01L27/088
    • This invention provides a circuit layout pattern and layout method for matching pairs of metal oxide semiconductor field effect transistors used in matched pairs in precision analog circuits. The layout uses dummy Metal oxide field effect transistors, or MOSFETs, to keep the environment the same around each of the MOSFETs in a matched pair. The MOSFETs in a matched pair are in a single row with each MOSFET in the matched pair having dummy MOSFETs adjacent to it on either side. The dummy MOSFETs can be part of the matched pair, can be used in other parts of the circuit, or may not be used. The use of dummy MOSFETs keeps the environment around each MOSFET in the matched pair the same and this improves the matching characteristics.
    • 本发明提供了一种用于匹配精密模拟电路中匹配对中使用的金属氧化物半导体场效应晶体管对的电路布局图案和布局方法。 该布局使用虚拟金属氧化物场效应晶体管或MOSFET,以在匹配的对中的每个MOSFET周围保持相同的环境。 匹配对中的MOSFET处于单行,匹配对中的每个MOSFET都具有与其两侧相邻的虚设MOSFET。 虚拟MOSFET可以是匹配对的一部分,可以用于电路的其他部分,也可以不使用。 使用虚拟MOSFET可以使匹配对中每个MOSFET周围的环境保持一致,从而改善了匹配特性。
    • 8. 发明授权
    • Layout pattern for improved MOS device matching
    • 改善MOS器件匹配的布局图案
    • US5952698A
    • 1999-09-14
    • US524537
    • 1995-09-07
    • Shyh-Chyi WongPin-Nan TsengJyh-Kang Ting
    • Shyh-Chyi WongPin-Nan TsengJyh-Kang Ting
    • H01L27/02H01L27/088H01L29/76H01L31/062
    • H01L27/0207H01L27/0203H01L27/088
    • This invention provides a circuit layout pattern and layout method for matching pairs of metal oxide semiconductor field effect transistors used in matched pairs in precision analog circuits. The layout uses dummy Metal oxide field effect transistors, or MOSFETs, to keep the environment the same around each of the MOSFETs in a matched pair. The MOSFETs in a matched pair are in a single row with each MOSFET in the matched pair having dummy MOSFETs adjacent to it on either side. The dummy MOSFETs can be part of the matched pair, can be used in other parts of the circuit, or may not be used. The use of dummy MOSFETs keeps the environment around each MOSFET in the matched pair the same and this improves the matching characteristics.
    • 本发明提供了一种用于匹配精密模拟电路中匹配对中使用的金属氧化物半导体场效应晶体管对的电路布局图案和布局方法。 该布局使用虚拟金属氧化物场效应晶体管或MOSFET,以在匹配的对中的每个MOSFET周围保持相同的环境。 匹配对中的MOSFET处于单行,匹配对中的每个MOSFET都具有与其两侧相邻的虚设MOSFET。 虚拟MOSFET可以是匹配对的一部分,可以用于电路的其他部分,也可以不使用。 使用虚拟MOSFET可以使匹配对中每个MOSFET周围的环境保持一致,从而改善了匹配特性。
    • 9. 发明授权
    • Precision capacitor array
    • 精密电容阵列
    • US5838032A
    • 1998-11-17
    • US801677
    • 1997-02-18
    • Jyh-Kang Ting
    • Jyh-Kang Ting
    • H01L27/08H01L27/10
    • H01L27/0805Y10S257/92Y10S438/941
    • Capacitor arrays may be incorporated within silicon integrated circuits as part of analog-to-digital or digital-to-analog converters. Capacitance ratios between individual capacitors need to be controlled to better than 1%. Because of microloading effects during etching, the areas of the electrodes of the capacitors located along the edges of the array have tended to be slightly less than the areas of electrodes located completely inside the array. The present invention solves this problem by providing additional electrodes located along the periphery of the array, spaced the same distance away from the array edge as the spacing between electrodes inside the array.
    • 作为模数转换器或数模转换器的一部分,电容器阵列可以并入硅集成电路中。 单个电容器之间的电容比必须控制在1%以上。 由于在蚀刻期间的微加载效应,沿着阵列边缘的电容器的电极的面积趋向于稍微小于完全位于阵列内部的电极的面积。 本发明通过提供沿着阵列的周边设置的附加电极来解决这个问题,其间隔与阵列边缘相距离的距离与阵列内的电极之间的间隔隔开相同的距离。
    • 10. 发明授权
    • Method of making a precision capacitor array
    • 制作精密电容阵列的方法
    • US5635421A
    • 1997-06-03
    • US490856
    • 1995-06-15
    • Jyh-Kang Ting
    • Jyh-Kang Ting
    • H01L27/08H01L21/8258
    • H01L27/0805Y10S257/92Y10S438/941
    • Capacitor arrays may be incorporated within silicon integrated circuits as part of analog-to-digital or digital-to-analog converters. Capacitance ratios between individual capacitors need to be controlled to better than 1%. Because of microloading effects during etching, the areas of the electrodes of the capacitors located along the edges of the array have tended to be slightly less than the areas of electrodes located completely inside the array. The present invention solves this problem by providing additional electrodes located along the periphery of the array, spaced the same distance away from the array edge as the spacing between electrodes inside the array.
    • 作为模数转换器或数模转换器的一部分,电容器阵列可以并入硅集成电路中。 单个电容器之间的电容比必须控制在1%以上。 由于在蚀刻期间的微加载效应,沿着阵列边缘的电容器的电极的面积趋向于稍微小于完全位于阵列内部的电极的面积。 本发明通过提供沿着阵列的周边设置的附加电极来解决这个问题,其间隔与阵列边缘相距离的距离与阵列内的电极之间的间隔隔开相同的距离。