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CN100466687C - 具有ir-截止涂覆窗口玻璃的照相机组件装置 - Google Patents

具有ir-截止涂覆窗口玻璃的照相机组件装置 Download PDF

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Publication number
CN100466687C
CN100466687C CNB2006101122849A CN200610112284A CN100466687C CN 100466687 C CN100466687 C CN 100466687C CN B2006101122849 A CNB2006101122849 A CN B2006101122849A CN 200610112284 A CN200610112284 A CN 200610112284A CN 100466687 C CN100466687 C CN 100466687C
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window glass
circuit board
printed circuit
camera module
pcb
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CN1925561A (zh
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高民喆
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Samsung Electro Mechanics Co Ltd
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Samsung Electro Mechanics Co Ltd
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Abstract

本发明涉及一种具有IR截止涂覆窗口玻璃的照相机组件装置，包括：下壳体；印刷电路板，其安装在下壳体上，并设置有图像传感器；透镜保持器，其安装在印刷电路板上，并设置有位于图像传感器上面的透镜；窗口玻璃，其安装在透镜上面，并在其上进行IR截止涂覆；以及上壳体，其具有形成于窗口玻璃上面的开口，并连接至下壳体。

Description

具有IR-截止涂覆窗口玻璃的照相机组件装置
相关申请交叉参考
本申请要求2005年8月30日向韩国知识产权局提交的韩国专利申请第2005-0080143号的优先权，其内容结合于此作为参考。
技术领域
本发明涉及一种照相机组件装置，具体地，涉及一种具有IR截止涂覆窗口玻璃的照相机组件装置，其中集成有IR滤光片和窗口，以便降低照相机组件的成本，提高光学特性，以及减少设计和制造时间。
背景技术
目前，越来越多的移动电话采用照相机组件。具体地，在2005年投放市场的移动电话中超过50％已采用照相机组件。
同时，作为封装用于移动电话的照相机组件的方法，提出了倒装芯片薄膜覆晶封装(COF)法、引线结合板上芯片封装(COB)法、芯片级封装(chip scale package)(CSP)法等。
COB法是与现有半导体生产线方法的工艺相类似的工艺，并且比其它封装方法具有更高的生产率。但是，由于引线应该用于与PCB的连接，组件的尺寸增大，而且需要附加工艺。因此，需要新的封装技术，以减小芯片的尺寸、改进热量散失和电性能、以及提高可靠性。由此，基于具有外部结合突起的凸块(bump)，出现了COF法。
在COF法中，不需要连接引线的空间。因此，封装件的面积和镜筒的高度可以减小。而且，由于使用薄膜或挠性印刷电路板(FPCB)，可以制造出能够经受外部冲击的可靠封装件，而且其制造工艺相对简单。此外，COF法满足了以高速处理信号的这种趋势，而且要求高密度，并需要多个销。
COF法作为芯片尺寸晶片级(wafer-scale)封装来应用。但是，该方法的工艺成本昂贵，而且到期日的一致性也不稳定。因此，这种方法作为用于图像传感器的方法具有局限性。
此外，由于移动电话制造商要求使带照相机的电话(cameraphone)小型化，并使成本降低，因此急需对应这种要求的对策。
随后，将参照附图，描述传统照相机组件的结构及其问题。
图1是示出了根据相关技术的照相机组件装置的分解透视图。
如图1所示，传统的照相机组件10包括：上壳体1，设置有开口1a；窗口玻璃2，其安装在开口1a的下面；透镜3，其安装在窗口玻璃2的下面；透镜保持器4，其固定透镜3；IR截止滤光片5，其安装在上面固定有透镜3的透镜保持器4的下面；图像传感器8，其安装在IR截止滤光片5的下面；印刷电路板(PCB)6，其固定图像传感器8；以及下壳体7，其安装在印刷电路板6的下面并连接至上壳体1。
印刷电路板6具有形成于IR截止滤光片5下面的开口(未示出)，而图像传感器8安装在开口的一个侧面中。图像传感器8起到处理所接收的图像信号的作用，而IR截止滤光片5起到截止从外界入射的红外线的作用。
在具有上述结构的传统照相机组件10中，IR截止滤光片5连接的位置根据COF法和COB法而不同。
在COF法中，将图像传感器8连接在印刷电路板(PCB)6上，然后将IR截止滤光片5连接在图像传感器8上。在COB法中，利用引线结合法将图像传感器8连接至印刷电路板(PCB)6，然后使用粘合剂将IR截止滤光片5连接在上壳体1的内侧上。
采用COF法或COB法的照相机组件使用窗口玻璃2。
但是，在传统的照相机组件10中，IR截止滤光片5和窗口玻璃2是独立使用的，从而增加了制造成本。
而且，当光传输至图像传感器8时，光会经过窗口玻璃2和IR截止滤光片5。因此，减少了其透射率，使得光量变得不充足。
在COB法中，由于IR截止滤光片5组装到壳体中，额外需要组装成本，从而增加了制造成本。
而且，在COB法中，由于将IR截止滤光片5组装到壳体中时，图像传感器8与IR截止滤光片5之间的短距离会发生与引线之间的接触，因而使得组件质量恶化。
在COF法中，由于IR截止滤光片5连接到图像传感器8上的连接工艺，使得生产率降低。
发明内容
本发明的优点在于，提供了一种具有IR截止涂覆窗口玻璃的照相机组件装置，其中，为了省去现有的IR截止滤光片，在照相机组件的窗口玻璃上进行IR截止涂覆，从而降低了成本，提高了光学特性，并减少了设计和制造时间。
本发明总发明构思的其它方面和优点将在随后的描述中部分地陈述，而其中一部分将通过这些描述将变得显而易见，或者通过对总发明构思的实践而获知。
根据本发明的一方面，具有IR截止涂覆窗口玻璃的照相机组件装置包括：下壳体；印刷电路板，其安装在下壳体上，并设置有图像传感器；透镜保持器，其安装在印刷电路板上，并设置有位于图像传感器上面的透镜；窗口玻璃，其安装在透镜上方，并在其上进行IR截止涂覆；以及上壳体，其具有形成于窗口玻璃上面的开口，并连接至下壳体。
根据本发明的另一方面，在窗口玻璃的一个表面上进行IR截止涂覆。
根据本发明的再一方面，在窗口玻璃的两个表面上进行IR截止涂覆。
根据本发明的又一方面，在窗口玻璃的一个表面上进行IR截止涂覆，而在其另一表面上进行抗反射涂覆。
根据本发明的又一方面，IR截止涂覆形成640nm至660nm的厚度。
根据本发明的又一方面，印刷电路板是挠性印刷电路板(F-PCB)。
根据本发明的又一方面，印刷电路板是刚挠结合印刷电路板(rigid flexible printed circuit board，RF-PCB)。
附图说明
从以下与附图相结合的对实施例的描述中，本发明总发明构思的这些和/或其它方面和优点将变得更显然和易于理解，附图中：
图1是示出了根据相关技术的照相机组件装置的分解透视图；
图2是示出了根据本发明的具有IR截止涂覆窗口玻璃的照相机组件装置的分解透视图。
具体实施方式
现在将详细说明本发明总发明构思的实施例，其实例在附图中示出，其中，相同附图标号始终表示相同部件。下面参照附图描述这些实施例，以解释本发明总发明构思。
下面将参照附图详细描述本发明的优选实施例。
图2是示出了根据本发明的具有IR截止涂覆窗口玻璃的照相机组件装置的分解透视图。
如图2所示，根据本发明的具有IR截止涂覆窗口玻璃的照相机组件装置包括：上壳体110，设置有开口110a；下壳体170，其连接至上壳体110；印刷电路板(PCB)160，其设置有IR截止涂覆窗口玻璃120、具有透镜130的透镜保持器140、以及图像传感器180，这些部件顺序地安装在上壳体110与下壳体170之间。
在壳体110的开口110a下面，IR截止涂覆窗口玻璃120安装在上壳体110内侧，与上述结构中一样。
窗口玻璃120具有形成于其一个表面和两个表面上的640nm至660nm的IR截止涂层。如果IR截止涂层的厚度小于640nm，则不可能期望IR截止效果。如果IR截止涂层的厚度大于660nm，则难以确保待传输至图像传感器的充足光量。
当在窗口玻璃120的两个表面上形成有IR截止涂层时，不必进行已经在窗口玻璃120上进行的抗反射涂覆。
同时，当仅在窗口玻璃120的一个表面上形成有IR截止涂层时，为了提高透射率，优选地在另一表面上进行抗反射涂覆。
由于根据本发明的IR截止涂覆窗口玻璃120还起到传统IR截止滤光片的作用，所以照相机组件装置不必包括单独的IR截止滤光片。
同时，作为印刷电路板(PCB)160，可以使用挠性印刷电路板(F-PCB)或刚挠结合印刷电路板(RF-PCB)，以通过COF或COB封装方法构成图像传感器组件。
在COF封装方法中，印刷电路板160具有这样的开口，使得经过窗口玻璃120和透镜130所传输的光投射到图像传感器180上。在开口中，安装有图像传感器180，与现有技术中的一样，其起到处理所接收到的图像信号的作用。
也就是说，在COF封装方法中，将图像传感器180连接到印刷电路板160上，然后，立即安装设置有透镜130的透镜保持器140，而无需在图像传感器180上安装IR截止滤光片。
因此，可以省去将IR截止滤光片连接到图像传感器上的工艺。
在COB封装方法中，通过使用引线结合法，将图像传感器180连接到印刷电路板160上。然后，直接安装设置有透镜130的透镜保持器140。在这种情况下，可以省去将IR截止滤光片连接到壳体内侧的工艺。
因此，可以降低把IR截止滤光片组装到壳体内时所需的成本。而且，可以防止由于将IR截止滤光片5组装到壳体内时的图像传感器与IR截止滤光片之间的短距离而发生的与引线接触所造成的质量恶化。
根据本发明的具有IR截止涂覆窗口玻璃的照相机组件装置，通过IR滤光片和窗口的集成，提高了透射率，从而提高了光学特性。而且，由于不必使用现有的IR截止滤光片，可以降低成本。
此外，由于不必进行将IR滤光片连接到图像传感器上的连接过程，可以提高生产率，并改善与IR滤光片有关的工艺不良率。
尽管已经示出和描述了本发明总发明构思的几个实施例，对本领域技术人员来说很显然，在不偏离本发明总发明构思的原则和精神的前提下，可以对这些实施例进行改变，本发明总发明构思的范围由所附权利要求及其等同物所限定。

Claims (4)

1.一种照相机组件装置，具有IR截止涂覆窗口玻璃，包括:
下壳体；
印刷电路板，其安装在所述下壳体上，并设置有图像传感器；
透镜保持器，其安装在所述印刷电路板上，并设置有位于所述图像传感器上方的透镜；
窗口玻璃，其安装在所述透镜上方，并在其上进行IR截止涂覆，其中，所述IR截止涂覆是在所述窗口玻璃的两个表面上进行的；以及
上壳体，其具有形成于所述窗口玻璃上方的开口，并连接至所述下壳体。
2.根据权利要求1所述的照相机组件装置，
其中，所述IR截止涂覆形成640nm至660nm的厚度。
3.根据权利要求1所述的照相机组件装置，
其中，所述印刷电路板是挠性印刷电路板(F-PCB)。
4.根据权利要求1所述的照相机组件装置，
其中，所述印刷电路板是刚挠结合印刷电路板(RF-PCB)。
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