US 12,352,724 B2
Dual gate biologically sensitive field effect transistor
Yu-Jie Huang, Kaohsiung (TW); Jui-Cheng Huang, Hsinchu (TW); and Cheng-Hsiang Hsieh, Taipei (TW)
Assigned to Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu (TW)
Filed by Taiwan Semiconductor Manufacturing Co., Ltd., Hsinchu (TW)
Filed on Mar. 27, 2023, as Appl. No. 18/126,577.
Application 18/126,577 is a division of application No. 17/135,508, filed on Dec. 28, 2020, granted, now 11,614,422.
Application 17/135,508 is a continuation of application No. 16/227,646, filed on Dec. 20, 2018, granted, now 10,876,998, issued on Dec. 29, 2020.
Application 16/227,646 is a continuation of application No. 14/961,588, filed on Dec. 7, 2015, granted, now 10,161,901, issued on Dec. 25, 2018.
Prior Publication US 2023/0251223 A1, Aug. 10, 2023
Int. Cl. G01N 27/414 (2006.01)
CPC G01N 27/4145 (2013.01) [G01N 27/4148 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of threshold voltage mismatch calibration for a sensor array comprising sensors with two control gates, the method comprising:
producing a first signal through each sampling loop circuit coupled to a corresponding one of the sensors;
calculating, for each of the sensors, a mismatch between voltages of the two control gates based on the first signal;
correcting the mismatch of each of the sensors; and
producing a second signal through each cancel mismatch loop circuit coupled to the corresponding one of the sensors.