Technique to manufacture a CIS module
OwnerYung Chau Yeninventor
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Abstract
A new technique is provided to manufacture a CIS module by employing an alignment-plate, a light-guide plate, and a resolution plate. The above plates can be selected to be pre-fabricated into one piece to reduce the number of components for the CIS module. The dimension of resolution definition structures of resolution plate determines the resolution of CIS module and allows only the reflect light from the image with a desired resolution to pass through. Consequently, it alleviates the butting difficulty in the convention butting operation to form a linear sensor array. Also, a signal reading technique is provided to improve the photo-response of the conventional photo-sensing device. Therefore, operation speed is increased and product performance is improved.
Claims17
a technique to assemble a CIS (Contact Image Sensor) module, employing the use of components of:
- (a) an alignment plate which has an alignment array of light-through structures which are one-to-one aligned to a sensor array of a photo-sensing elements, including photo-diodes, photo-transistors, charge coupled devices, on a sensor IC chip which is used to butt to form a linear sensor array,
- (b) a light-guide plate which has a light-guide array of light-guide structures which are one-to-one aligned to said light-through structures at one end and one-to-one aligned to said resolution definition structures at the other end.
- (c) a resolution plate which has a resolution array of said resolution-definition structures.
- in such a configuration of said components that said alignment plate is between said sensor IC chip and said light-guide plate which is between said alignment plate and said resolution plate which is aligned to a line image which is an linear image array of a discrete image which upon an incident of a light source has a reflective light to pass through an aligned one of said resolution-definition structures which are one-to-one aligned to said linear image array to other aligned one of said light-guide structures which guides said reflective light to another one of said light-through structures which transfers said reflective light further to other another aligned one of said photo-sensing elements of said sensor array to result in a photo-signal of said photo-sensing element of said sensor array.
Dependencies are inferred from the claim text.