Semiconductor image sensor module and method of manufacturing the same
First Claim
1. An image sensor comprising:
- a first semiconductor chip including a plurality of pixels arranged in a first array, each of the pixels including a photoelectric conversion element, anda second semiconductor chip including a plurality of analog/digital converters arranged in a second array; and
a third semiconductor chip including a memory element array provided with at least a decoder and a sense amplifier,wherein the first, second, and third semiconductor chips are stacked and electrically connected to one another, andat least two of the first, second, and third semiconductor chips are electrically connected through a penetration contact portion passing through at least one of the first, second, and third semiconductor chips.
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Abstract
The present invention provides a CMOS type semiconductor image sensor module in which the aperture ratio of the pixel is improved and at the same time chip use efficiency is attempted to be improved and furthermore, simultaneous shuttering of all the pixels is made possible, and a method of manufacturing the same. The semiconductor image sensor module of the present invention is constituted by laminating a first semiconductor chip including an image sensor in which a plurality of pixels, each constituted by a photoelectric conversion element and transistors, are arranged, and a second semiconductor chip including an A/D converter array. Preferably, a third semiconductor chip including a memory element array is further laminated. Also, a semiconductor image sensor module of the present invention is constituted by laminating a first semiconductor chip provided with the aforesaid image sensor and a fourth semiconductor chip provided with an analog type nonvolatile memory array.
186 Citations
33 Claims
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1. An image sensor comprising:
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a first semiconductor chip including a plurality of pixels arranged in a first array, each of the pixels including a photoelectric conversion element, and a second semiconductor chip including a plurality of analog/digital converters arranged in a second array; and a third semiconductor chip including a memory element array provided with at least a decoder and a sense amplifier, wherein the first, second, and third semiconductor chips are stacked and electrically connected to one another, and at least two of the first, second, and third semiconductor chips are electrically connected through a penetration contact portion passing through at least one of the first, second, and third semiconductor chips. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 26, 27)
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17. An image sensor comprising:
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a first semiconductor chip including a plurality of pixels arranged in a first array, each of the pixels including a photoelectric conversion element, a second semiconductor chip including an analog nonvolatile memory array including a plurality of analog nonvolatile memories, and a third semiconductor chip including a plurality of analog/digital converters arranged in a second array, wherein the first, second, and third semiconductor chips are stacked and electrically connected to one another, wherein at least two of the first, second, and third semiconductor chips are electrically connected through a penetration contact portion passing through at least one of the first, second, and third semiconductor chips, and wherein an amount of information corresponding to an amount of accumulated electric charge is stored by the analog nonvolatile memories. - View Dependent Claims (28, 29)
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18. A method of making an image sensor module, comprising the steps of:
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forming a first semiconductor chip, the first semiconductor chip including a plurality of pixels arranged two-dimensionally in a first array, each of the pixels including a photoelectric conversion element; forming a second semiconductor chip, the second semiconductor chips including a plurality of analog/digital converters arranged in a second array; forming a third semiconductor chip, the third semiconductor chip including a memory element array provided with at least a decoder and a sense amplifier; and stacking and electrically connecting the first, second, and third semiconductor chips to one Another, wherein at least two of the first, second, and third semiconductor chips are electrically connected through a penetration contact portion passing through at least one of the first, second, and third semiconductor chips. - View Dependent Claims (19, 20, 21, 22, 23, 24, 30, 31)
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25. A method of making an image sensor, comprising the steps of:
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forming a first semiconductor chip, the first semiconductor chip including a plurality of pixels arranged in a first array, each of the pixels including a photoelectric conversion element; forming a second semiconductor chip, the second semiconductor chip including an analog nonvolatile memory array including a plurality of analog nonvolatile memories provided with an analog nonvolatile memory array composed of a plurality of analog nonvolatile memories; forming a third semiconductor chip, the third semiconductor chip including a plurality of analog/digital converters arranged in a second array; stacking and electrically connecting the first, second, and third semiconductor chips to one another; and connecting each of the pixels to one of the analog nonvolatile memories, wherein at least two of the first, second, and third semiconductor chips are electrically connected through a penetration contact portion passing through at least one of the first, second, and third semiconductor chips. - View Dependent Claims (32, 33)
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Specification