公开(公告)号：US20120305786A1

公开(公告)日：2012-12-06

申请号：US13153852

申请日：2011-06-06

申请人： Bart Dierickx

发明人： Bart Dierickx

IPC分类号： G01T1/24 ,  H01L27/146 ,  G01J1/44

CPC分类号： G01J1/44

摘要： A pixel for the detection of electromagnetic radiation or high energy particles or charge packets, in particular for detecting X-ray photons, comprises a radiation receptor for converting the radiation into a sensing signal, the pixel being adapted for performing both pulse detection and integration of the same sensing signal.

摘要翻译： 用于检测电磁辐射或高能量粒子或电荷包，特别是用于检测X射线光子的像素包括用于将辐射转换成感测信号的辐射接收器，该像素适于执行脉冲检测和积分 相同的感应信号。

公开(公告)号：US20060239580A1

公开(公告)日：2006-10-26

申请号：US11111287

申请日：2005-04-20

申请人： Bart Dierickx

发明人： Bart Dierickx

IPC分类号： H04N9/64 ,  G06K9/40

CPC分类号： H04N5/367 ,  G06T5/005 ,  G06T2207/10024 ,  H04N9/045

摘要： A method and apparatus for defect pixel correction in an image sensor. The method may include calculating a median of extrapolated values of right neighboring and left neighboring pixel values of a potentially defective pixel.

摘要翻译： 一种用于图像传感器中的缺陷像素校正的方法和装置。 该方法可以包括计算潜在缺陷像素的右邻近和相邻像素值的外推值的中值。

公开(公告)号：US08198577B2

公开(公告)日：2012-06-12

申请号：US12392637

申请日：2009-02-25

申请人： Bart Dierickx

发明人： Bart Dierickx

IPC分类号： G01J1/44 ,  H01J40/14 ,  H03F3/08

CPC分类号： G01T1/17 ,  G01T1/247

摘要： A pixel for the detection of electromagnetic radiation or impinging high energy particles, in particular for detecting X-ray photons, including a radiation receptor for converting the electromagnetic radiation or impinging high energy particles into a radiation signal, a converter for converting the radiation signal into a pulse train, and an analog accumulator for accumulating the pulses of a pulse train to an analog signal for readout. The analog accumulator is adapted such that the analog signal is non-linearly proportional to the pulse count. Such non-linear analog accumulator has the advantage of an large dynamic range.

摘要翻译： 用于检测电磁辐射或冲击高能粒子的像素，特别是用于检测X射线光子，包括用于将电磁辐射转换或将高能粒子撞击到辐射信号中的辐射接收器，用于将辐射信号转换成 脉冲串和模拟累加器，用于将脉冲串的脉冲累加到模拟信号用于读出。 模拟累加器适于使得模拟信号与脉冲计数成非线性比例。 这种非线性模拟累加器具有动态范围大的优点。

公开(公告)号：US20110267505A1

公开(公告)日：2011-11-03

申请号：US12770262

申请日：2010-04-29

申请人： Bart DIERICKX

发明人： Bart DIERICKX

IPC分类号： H04N9/64

CPC分类号： H04N5/357 ,  H01L27/14609 ,  H01L27/1461 ,  H01L27/14612 ,  H01L27/1463 ,  H01L27/14643 ,  H04N5/3745

摘要： A pixel is provided, comprising at least one transistor, the pixel being arranged for cycling the at least one transistor between two or more bias states, e.g. inversion and accumulation, during a readout phase. Due to the cycling between the at least two bias states, the correlation over time of the 1/f noise of the readout signals is broken, thus taking multiple samples and applying an operator onto the samples can reduce the effect of the 1/f noise to arbitrary low levels.

摘要翻译： 提供了一个像素，包括至少一个晶体管，该像素被布置成用于在两个或多个偏压状态之间循环至少一个晶体管，例如， 反转和累积，在读出阶段。 由于至少两个偏置状态之间的循环，读出信号的1 / f噪声随时间的相关性被破坏，因此采用多个采样并将运算符应用于采样可以减少1 / f噪声的影响 到任意低水平。

公开(公告)号：US07973845B2

公开(公告)日：2011-07-05

申请号：US11136545

申请日：2005-05-25

申请人： Bart Dierickx ,  Jan Bogaerts

发明人： Bart Dierickx ,  Jan Bogaerts

IPC分类号： H04N5/335 ,  H03M1/34

CPC分类号： H04N5/3575 ,  H04N5/37452

摘要： A method and apparatus for performing correlated double sampling to remove low frequency noise. The method and apparatus includes an active pixel of an array of active pixels comprising a sensor circuit for collecting radiation induced charges and transducing them to a measurement signal corresponding to the amount of charge collected, two memory elements for storing the measurement signal at the beginning and the end of a first integration period respectively, and at least one further memory element for storing at least the measurement signal at the beginning of a next integration period.

摘要翻译： 一种执行相关双重采样以去除低频噪声的方法和装置。 该方法和装置包括有源像素阵列的有源像素，其包括用于收集辐射感应电荷的传感器电路并将其转换成与所收集的电荷量相对应的测量信号，用于在开始时存储测量信号的两个存储元件，以及 分别为第一积分期间的结束，以及至少一个存储元件，用于在下一个积分周期的开始时至少存储测量信号。

公开(公告)号：US07808022B1

公开(公告)日：2010-10-05

申请号：US11392410

申请日：2006-03-28

申请人： Bart Dierickx

发明人： Bart Dierickx

IPC分类号： H01L27/146 ,  H01L31/06

CPC分类号： H01L27/14683 ,  H01L27/1463

摘要： A method and apparatus for reducing cross-talk between pixels in a semiconductor based image sensor. The apparatus includes neighboring pixels separated by a homojunction barrier to reduce cross-talk, or the diffusion of electrons from one pixel to another. The homojunction barrier being deep enough in relation to the other pixel structures to ensure that cross-pixel electron diffusion is minimized.

摘要翻译： 一种用于减少基于半导体的图像传感器中的像素之间的串扰的方法和装置。 该装置包括由同质屏障隔开的相邻像素，以减少串扰，或者将电子从一个像素扩散到另一个像素。 相同的结构势垒相对于其他像素结构足够深以确保跨像素电子扩散最小化。

公开(公告)号：US20100052020A1

公开(公告)日：2010-03-04

申请号：US12204011

申请日：2008-09-04

申请人： Bart DIERICKX

发明人： Bart DIERICKX

IPC分类号： H01L27/146 ,  H01L31/18

CPC分类号： H01L27/14603 ,  H01L27/14689

摘要： The invention relates to a semiconductor substrate 1 and a MOS based pixel structure for detecting light. The semiconductor substrate 1 comprises a base region 2 having dopants of a first conductivity type, a first region 3 having dopants of a second conductivity type, a second region 5 having dopants of the first conductivity type at a higher doping level than the base region 2, the second region 5 forming a barrier to the first region, and the second region 5 further comprising an opening 6, wherein the opening 6 is provided between the base region 2 and the first region 3. Providing such an opening 6 in the second region 5 is advantageous, since it allows provision of a low threshold voltage.

摘要翻译： 本发明涉及半导体衬底1和用于检测光的MOS基像素结构。 半导体衬底1包括具有第一导电类型的掺杂剂的基极区域2，具有第二导电类型的掺杂剂的第一区域3，具有比基极区域2更高的掺杂浓度的第一导电类型的掺杂剂的第二区域5 第二区域5形成对第一区域的屏障，第二区域5还包括开口6，其中开口6设置在基部区域2和第一区域3之间。在第二区域中设置这样的开口6 5是有利的，因为它允许提供低阈值电压。

公开(公告)号：US07224389B2

公开(公告)日：2007-05-29

申请号：US09906418

申请日：2001-07-16

申请人： Bart Dierickx

发明人： Bart Dierickx

IPC分类号： H04N5/335

CPC分类号： H04N5/37452

摘要： An active pixel comprises a sensor circuit for collecting radiation induced charges and transducing them to a measurement signal corresponding to the amount of charge collected, and a capacitor element with two nodes, where the measurement signal is present on a node of the capacitor element. The memory circuit is clocked, i.e. driven by a pulsed signal. The pulse on the memory circuit will rise the reset level at the output, which is lowered due to threshold voltage losses in the active pixel circuit, thus restoring a large signal swing. Arrays of the pixels are described, as well as a method for reading out such a pixel.

摘要翻译： 有源像素包括用于收集辐射感应电荷并将其转换成对应于所收集的电荷量的测量信号的传感器电路，以及具有两个节点的电容器元件，其中测量信号存在于电容器元件的节点上。 存储器电路被计时，即由脉冲信号驱动。 存储器电路上的脉冲将使输出端的复位电平升高，由于有源像素电路中的阈值电压损耗而降低，从而恢复了大的信号摆幅。 描述像素的数组，以及用于读出这样的像素的方法。

公开(公告)号：US20050270394A1

公开(公告)日：2005-12-08

申请号：US11136545

申请日：2005-05-25

申请人： Bart Dierickx ,  Jan Bogaerts

发明人： Bart Dierickx ,  Jan Bogaerts

IPC分类号： H04N5/217 ,  H04N5/357 ,  H04N5/3745 ,  H04N5/335

CPC分类号： H04N5/3575 ,  H04N5/37452

摘要： The present invention provides an active pixel and an array of active pixels. The active pixel, and each active pixel in the array comprises: a sensor circuit for collecting radiation induced charges and for transducing them to a measurement signal corresponding to the amount of charge collected, two memory elements for storing the measurement signal at the beginning and the end of a first integration period respectively, and at least one further memory element for storing at least the measurement signal at the beginning of a next integration period. A corresponding method for performing correlated double sampling is described in which a reset level of the pixel at a beginning of the first integration period is stored in a first memory element, a measurement signal of the pixel at an end of the first integration period is stored in a second memory element, and, while performing the correlated double sampling with the stored reset level and the stored measurement signal, a reset level of the pixel at the beginning of the second integration period is stored in a third memory element.

摘要翻译： 本发明提供一种有源像素和一个有源像素阵列。 有源像素和阵列中的每个有源像素包括：传感器电路，用于收集辐射诱发的电荷并将它们转换成与所收集的电荷量相对应的测量信号，用于在开始时存储测量信号的两个存储元件 以及至少一个另外的存储元件，用于在下一个积分周期开始时至少存储测量信号。 描述了用于执行相关双重采样的相应方法，其中在第一积分周期的开始处的像素的复位电平被存储在第一存储元件中，存储在第一积分周期结束时的像素的测量信号 在第二存储元件中，并且在利用所存储的复位电平和所存储的测量信号执行相关双重采样的同时，将第二积分周期开始时的像素的复位电平存储在第三存储元件中。

公开(公告)号：US20050110050A1

公开(公告)日：2005-05-26

申请号：US10717854

申请日：2003-11-20

申请人： Tom Walschap ,  Herman Witters ,  Danny Scheffer ,  Jan Bogaerts ,  Bart Dierickx

发明人： Tom Walschap ,  Herman Witters ,  Danny Scheffer ,  Jan Bogaerts ,  Bart Dierickx

IPC分类号： H01L21/00 ,  H01L27/146 ,  H01L27/148

CPC分类号： H01L27/14625 ,  H01L27/1462 ,  H01L27/14621 ,  H01L27/14643 ,  H01L27/14685

摘要： An image sensor device (100) is described comprising a semiconductor substrate (1), a MOS-based pixel structure and a planarization layer (30) on top. The planarization layer (30) is provided to avoid lensing due to the roughness of the pixel structure surface. The planarization layer (30) may be further optimized by adapting its thickness and refractive index to obtain anti-reflective coating properties for some regions in the image sensor device. This allows increasing the quantum efficiency and the spectral response of the image sensor device significantly.

摘要翻译： 描述了一种在顶部包括半导体衬底（1），基于MOS的像素结构和平坦化层（30）的图像传感器装置（100）。 提供平坦化层（30）以避免由于像素结构表面的粗糙度导致的透镜化。 通过适应其厚度和折射率可以进一步优化平坦化层（30），以获得图像传感器装置中的一些区域的抗反射涂层性质。 这允许显着增加图像传感器装置的量子效率和光谱响应。