| Date | Major Event | ||
| Jun. | 2000 | Sentelic was established with NTD 15,000K capital stock. | |
| Dec. | 2001 | Cash capital increased of NTD 5,000K to NTD 20,000K. | |
| Nov. | 2003 | Cash capital increased of NTD 11,000K to NTD 31,000K. | |
| Jul. | 2004 | Launch finger-sensing pad controller IC with laptop computers: STL3842. | |
| Jul. | 2004 | Launch ultra-low power voltage detector IC: STL81xx series. | |
| Jul. | 2004 | Cash capital increased of NTD 4,000K to NTD 35,000K. | |
| Aug. | 2004 | VentureTech Alliance Fund II, L.P. (TSMC venture capital) became the largest corporate shareholder of Sentelic. | |
| Aug. | 2004 | Obtained ISO-9001 certification. | |
| Sep. | 2004 | Launch finger-sensing pad controller IC with mobile electronics: STL3843. | |
| Oct. | 2004 | Finger-sensing pad was certified by major laptop OEM. | |
| Dec. | 2004 | Cash capital increased of NTD 6,000K to NTD 41,000K. | |
| Jun. | 2005 | Launch smart brushless DC fan driver IC: STL60xx series. | |
| Aug. | 2005 | Smart brushless DC fan driver IC was certified by major DC FAN manufacturing. | |
| Mar. | 2006 | Cash capital increased of NTD 41,000K to NTD 82,000K. | |
| Jul. | 2007 | Launch advanced direct PWM fan control IC: STL62xx series. | |
| Aug. | 2007 | Launch finger-sensing pad controller IC: STL3886. | |
| Oct. | 2007 | 32 bit DSP core project was awarded the science and technology project subsidy from the Ministry of Economic Affairs. | |
| May | 2008 | Cash capital increased of NTD 15,000K to NTD 97,000K. | |
| May | 2008 | Launch finger-sensing pad controller IC: STL3888. | |
| Jan. | 2010 | Capital increased of employee stock option certificates of NTD 35,270K to NTD 132,270K | |
| Apr. | 2010 | Approved of public issuance on Taiwan's stock exchange. | |
| Jul. | 2010 | Cash capital increased of NTD 77,730K to NTD 210,000K. | |
| Jan. | 2011 | Approved of issuance of 2,100K units of employee stock option certificates. | |
| Nov. | 2011 | Launch PWM driven DC brushless fan driver IC: STL6900A series. | |
| May | 2013 | Approved to cancel public issuance. | |
| Dec. | 2013 | Cash capital increased of NTD 15,384K to NTD 225,834K. | |
| Jan. | 2014 | Obtained TW patent for "Motor drive device and driving method thereof (I423582)". | |
| Oct. | 2015 | Launch programmable PWN drive DC brushless fan control IC: STL6600 series. | |
| Oct. | 2015 | Obtained CN patent for " Motor drive device and driving method thereof (ZL201010233729.5)". | |
| Sep. | 2017 | Capital reduction of NTD 112,917K to NTD 112,917K. | |
| Oct. | 2017 | Capital increased of stock merger with E-COM Technology Corporation of NTD 112,917K to NTD 225,834K. | |
| Dec. | 2017 | Became subsidiary of listed company Nichidenbo Corporation.(stock code 3090) | |
| Dec. | 2017 | Launch high voltage programmable fan motor control IC: STL5000 series. | |
| Dec. | 2017 | Obtained TW patent for "System and method of controlling motor(I609568)". | |
| Feb. | 2018 | Launch fan motor driver IC with in-system programming function: STL6700 series. | |
| May | 2018 | Launch high power fan motor drive IC: STL6500 series. | |
| Jun. | 2018 | Obtained ISO-9001:2015 certification. | |
| Jun. | 2018 | Cash capital increased of NTD 34,166K to NTD 260,000K. | |
| Sep. | 2018 | Obtained TW patent for "System and method for detecting signal transmission latency of fan chip (I635707)". | |
| Nov. | 2018 | Public issuance on Taiwan's stock exchange was approved on November 2nd. | |
| Nov. | 2018 | Obtained TW patent for "System and method for detecting clock frequency offset of fan chip (I641226)". | |
| May | 2019 | Obtained TW patent for "System and method for controlling fan (I660126)". | |
| Jun. | 2019 | Obtained USA patent for "Detection system and method of signal transmission delay for fan chip (10440857)". | |
| Jun. | 2019 | Became a listed company of Semiconductor stock at emerging stock market in Taiwan. (stock code 4945) | |
| Mar. | 2020 | Obtained CN patent for "System and method for detecting clock frequency offset of fan chip (ZL201711289913.X)". | |
| Apr. | 2020 | Obtained USA patent for "Fan control system and method thereof (I10638640)". | |
| May | 2020 | Obtained USA patent for "System and method for detecting clock frequency offset of fan chip (I10664005)". | |
| Aug. | 2020 | Capital increased of Restricted Stock Awards of NTD 260,000K to NTD 268,000K. | |
| Aug. | 2020 | Taipei Exchange hold a Board approves the main board listing application. | |
| Aug. | 2020 | Obtained CN patent for "System and method for controlling fan (ZL 201810040533.0)". | |
| Oct. | 2020 | Capital reduction of cancellation of Restricted stock Awards of NTD 130K to NTD 267,870K. | |
| Nov. | 2020 | Became a TPEx Listed company of Semiconductor stock in Taiwan. | |
| Dec. | 2020 | Pre-listing Cash capital increased of NTD 33,000K to NTD 300,870K. | |
| Feb. | 2021 | Capital reduction of cancellation of Restricted stock Awards of NTD 200K to NTD 300,670K. | |
| Aug. | 2021 | Capital reduction of cancellation of Restricted stock Awards of NTD 80K to NTD 300,590K. | |
| Nov. | 2021 | Capital reduction of cancellation of Restricted stock Awards of NTD 24K to NTD 300,566K. | |
| Dec. | 2021 | Obtained TW patent for“FAN SYSTEM AND FAN DRIVING METHOD (I748866)”. | |
| Dec. | 2021 | Obtained TW patent for “CURRENT DETERMINATION CIRCUIT(I748772)”. | |
| Feb. | 2022 | Capital reduction of cancellation of Restricted stock Awards of NTD 96K to NTD 300,470K. | |
| Jul. | 2022 | Be notified by Weltrend Semiconductor, Inc. (stock code 2436) about the public tender offer for common stock. | |
| Aug. | 2022 | Capital reduction of cancellation of Restricted stock Awards of NTD 102K to NTD 300,368K. | |
| Aug. | 2022 | Became subsidiary of listed company Weltrend Semiconductor, Inc. (stock code 2436). | |
| Sep. | 2022 | Obtained TW patent for “CURRENT STATE DETERMINATION METHOD AND CIRCUIT (I776304)”. | |
| Oct. | 2022 | Obtained USA patent for“CURRENT DETERMINATION CIRCUIT (11467193)”. | |
| Nov. | 2022 | Obtained TW patent for“MOTOR SYSTEM AND MOTOR CONTROL METHOD (I783740)”. | |
| Feb. | 2023 | Obtained TW patent for“MOTOR SYSTEM AND MOTOR DRIVING METHOD (I793517)”. | |
| Mar. | 2023 | Obtained USA patent for“CURRENT STATE DETERMINATION METHOD AND CIRCUIT (11606052)”. | |
| Mar. | 2023 | Obtained USA patent for“FAN SYSTEM AND FAN DRIVING METHOD (11600170)”. | |
| Jul. | 2023 | Obtained USA patent for“MOTOR SYSTEM AND MOTOR DRIVING METHOD (11695355)”. | |
| Nov. | 2023 | The 2nd TIRI Awards for the Small and Mid cap of TPEx companies - Best Investor Relations Company and Best Investor Relations Officer. | |
| Apr. | 2024 | Obtained USA patent for“MOTOR SYSTEM AND MOTOR CONTROL METHOD (11973449)”. | |
| May | 2024 | Obtained CN patent for“FAN SYSTEM AND FAN DRIVING METHOD (ZL 202110147689.0) ”. | |
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