Abstract:
The present invention relates to a method of packaging a silicon photomultiplier using a PCB substrate. The method of packaging a silicon photomultiplier using a PCB substrate according to one embodiment of the present invention includes a step of forming at least one array-type silicon photomultiplier on a PCB substrate; a step of attaching a dam PCB to the edge of the PCB substrate and a step of forming a passivation layer in the upper part of the array-type silicon photomultiplier; and a step of cutting the edge region of the PCB substrate which includes the dam PCB attached to the PCB.
Abstract:
상보적 램프신호를 이용하여 A/D 변환을 수행하는 ADC 및 이를 적용한 이미지 센싱 장치가 제공된다. 본 발명의 실시예에 따른 이미지 센싱 장치는, 아날로그 픽셀값을 출력하는 픽셀, 픽셀에서 출력되는 아날로그 픽셀값을 샘플신호 앤드 홀드하여 샘플신호를 생성하는 S/H 및 S/H에서 생성된 샘플신호를 다수의 램프신호들과 비교하여 디지털화하는 ADC를 포함한다. 이에 의해, A/D 변환 속도를 증가시킬 수 있게 되어, 단위시간당 처리할 수 있는 픽셀값들의 개수 증가를 통해 고화질 영상을 지연 없이 제공하는 기틀을 마련할 수 있게 된다.
Abstract:
PURPOSE: An SHA (Sample and Hold Amplifier) for suppressing charge outflow at an internal device is provided to prevent the operation distortion of the SHA by suppressing the charge outflow at a switch which delivers an input signal to a charging device. CONSTITUTION: A switching unit (110) includes a plurality of switches (MN1-7, MP1-3), an inverter (I) and a capacitor (C1). The switching unit delivers an input signal to a charging unit. The charging unit charges the input signal delivered through the switching unit. A charge outflow suppressing unit (130) includes a micro-inductor (ML). The charge outflow suppressing unit suppresses the charge outflow at the switching unit.
Abstract:
PURPOSE: Detector modules for positron emission tomography and a positron emission tomography using the same are provided to prevent the external loss of the detecting ring of a gamma-ray by forming a detection module. CONSTITUTION: In detector modules for positron emission tomography and a positron emission tomography using the same, a flash layer includes a plurality of flash body. A plurality of stick flash bodies are arranged in pixel type array. A pair of light diffusing layers are respectively connected to both ends of the flash layer. A pair of light diffusing layers diffuses a flashing light signal. A pair of photo sensor arrays(130) converts the flashing light signal into the electric signal. A pair of detection circuits detects the reaction site of the gamma-ray within the flash layer.
Abstract:
본 발명은 스트립형 PN 접합구조를 갖는 실리콘 광전자증배관 및 그 제조 방법에 관한 것으로서, 더욱 상세하게는 실리콘 광전자증배관을 구성하는 각 마이크로셀의 PN 접합(PN junction)층을 형성함에 있어서, 통상의 CMOS 공정을 이용하여 p- 에피택셜층 상에 n+층을 형성하되, 상기 n+층을 p- 에피택셜층 상부에 띠 형태의 스트립(strip) 구조로 형성하여, 섬광체로부터 입사되는 가시광에 의해 p- 에피택셜층에서 발생한 전자가 스트립 구조로 형성된 n+층으로 집속되도록 구성함으로써, 정공보다 상대적으로 아발란치(전자사태, avalanche) 효율이 우수한 전자에 의한 아발란치 브레이크다운(Avalanche Breakdown)을 유도하여, 입사되는 광의 검출 효율을 높일 수 있는 스트립형 PN 접합구조를 갖는 실리콘 광전자증배관 및 그 제조 방법에 관한 것이다. 이를 위하여 본 발명은, 다수개의 마이크로셀로 이루어지는 실리콘 광전자증배관(SiPM : Silicon Photomultiplier)에 있어서, 상기 실리콘 광전자증배관을 구성하는 다수개의 마이크로셀 각각은, p+ 웨이퍼 기판, 상기 p+ 웨이퍼 기판상에 형성되는 p- 에피택셜층 및 상기 p- 에피택셜층에 도핑되어, 상기 p- 에피택셜층 표면에 띠 형태의 스트립(strip) 구조로 형성되는 n+층을 포함하여 구성되는 것을 특징으로 한다.
Abstract:
The present invention relates to a silicon photomultiplier with a strip-type P-N junction structure and a manufacturing method thereof and, more specifically, to a silicon photomultiplier with a strip-type P-N junction structure, and a manufacturing method thereof which forms an n+ layer on a p- epitaxial layer using an ordinary CMOS process, but forms the n+ layer as a strip structure in a band shape on the top of the p- epitaxial layer when a P-N junction layer of each microcell forming the silicon photomultiplier is formed. The silicon photomultiplier with the strip-type P-N junction structure makes an electron generated in the p- epitaxial layer by visible light inserted from a scintillator to be concentrated to an n+ layer of the strip structure, induces avalanche breakdown by the electron having excellent avalanche efficiency than a hole, and enhances detection efficiency of incident light. For the purpose mentioned above, the silicon photomultiplier (SiPM) which is formed of a plurality of microcells is provided. Each of the microcells forming the silicon photomultiplier comprises; a p+ wafer substrate; the p- epitaxial layer formed on the p+ wafer substrate; and an n+ layer which is doped on the p- epitaxial layer and is formed on the surface of the p- epitaxial layer as a strip structure in a band shape.
Abstract:
Disclosed is a personal electronic dosimeter using multiple single channel analyzers. The personal electronic dosimeter, according to embodiments of the present invention, uses more than two single channel analyzers in order to form an energy window based on the radiation energy level of the radiation source, or form a reference level value greater than two. Through the reference level value, a radiation signal can be recognized, so as for a user to measure radiation of various sources, and calculate a reliable dose. [Reference numerals] (AA) Radiation energy; (BB) Time
Abstract:
PURPOSE: An image sensing device implementing a pixel with two different type transistors is provided to output an output signal of a photo diode to a comparator through two different type transistors, thereby reducing the number of column lines. CONSTITUTION: An image sensing device comprises a pixel (110) to output an output signal of a photo diode (PD) through first type transistors (MN1, MN2) and a second type transistor (MP); a comparator (121) to compare the output signal to a reference signal; and memories (123,124) to stores an output size based on a result of the comparison. The pixel is a heterogeneous 3-Tr pixel and constituted with the PD, two N-channel metal-oxide semiconductors (N-MOS), and one P-channel metal-oxide semiconductor (P-MOS). The 3-Tr pixel outputs the output signal of the PD through the two N-MOSs and the one P-MOS. [Reference numerals] (123) Memory 1; (124) Memory 2; (125) Counter