US Patent Application 18348460. Fingerprint Sensor in InFO Structure and Formation Method simplified abstract

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Fingerprint Sensor in InFO Structure and Formation Method

Organization Name

Taiwan Semiconductor Manufacturing Co., Ltd.


Inventor(s)

Chih-Hua Chen of Zhubei City (TW)

Yu-Feng Chen of Hsinchu (TW)

Chung-Shi Liu of Hsinchu (TW)

Chen-Hua Yu of Hsinchu (TW)

Hao-Yi Tsai of Hsinchu (TW)

Yu-Chih Huang of Hsinchu (TW)

Fingerprint Sensor in InFO Structure and Formation Method - A simplified explanation of the abstract

This abstract first appeared for US patent application 18348460 titled 'Fingerprint Sensor in InFO Structure and Formation Method

Simplified Explanation

The patent application describes a package that includes a sensor die and an encapsulating material.

  • The top surface of the encapsulating material is either at the same level or higher than the top surface of the sensor die.
  • The package also includes a plurality of sensing electrodes that are higher than both the sensor die and the encapsulating material.
  • These sensing electrodes are arranged in rows and columns and are electrically connected to the sensor die.
  • A dielectric layer is used to cover the sensing electrodes.


Original Abstract Submitted

A package includes a sensor die, and an encapsulating material encapsulating the sensor die therein. A top surface of the encapsulating material is substantially coplanar with or higher than a top surface of the sensor die. A plurality of sensing electrodes is higher than the sensor die and the encapsulating material. The plurality of sensing electrodes is arranged as a plurality of rows and columns, and the plurality of sensing electrodes is electrically coupled to the sensor die. A dielectric layer covers the plurality of sensing electrodes.