Stress sensor transfer method used for measuring wafer level packaging stress
A stress sensor, wafer-level packaging technology, applied in the fields of packaging and measurement, and integrated circuit manufacturing, can solve the problems of high processing cost, high development cost, and high development cost of integrated circuit process lines
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[0036] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.
[0037] Embodiments of the present invention relate to a stress sensor transfer method for wafer-level packaging stress measurement, including the following steps: first, a dedicated test chip is fabricated, a stress sensor is fabricated on the test chip, and the size of the test chip and the arrangement of the pads are consistent with The chip to be packaged is the same; the test chip is packaged with the package process to be ...
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