Sierra Circuits Sierra Circuits (also known as Sierra Proto Express) is a company that manufactures and assembles printed circuit boards. | ![]() United Microelectronics United Microelectronics Corporation (UMC, 聯華電子股份有限公司) is a semiconductor foundry company that provides integrated circuit (IC) fabrication services. | ![]() OmniVision Group OmniVision Integrated Circuits Group (豪威集成电路(集团)股份有限公司, formerly known as Will Semiconductor, 韦尔股份) is a semiconductor design company that provides sensor, analog, and display solutions. | |
Founding Date | Founding Date 1986 | Founding Date 1980 | Founding Date 2007 |
Type | Type Private | Type Public | Type Public |
Tags | |||
Locations | Locations Sunnyvale, US HQ Delta, CA | Locations Hsinchu, TW HQ Yokohama, JP Seoul, KR Amsterdam, NL Singapore, SG Sunnyvale, US | Locations Shanghai, CN HQ |
Employees | Employees 478 | Employees 19,0164% decrease | Employees 5,376 |
Financial | |||
Revenue (est.) | Revenue (est.) $108m (Y, 2024) | Revenue (est.) NT$237.6b (FY, 2025) | Revenue (est.) ¥28.8b (FY, 2025) |
Cost of goods | Cost of goods N/A | Cost of goods NT$109.5b (FY, 2025) | Cost of goods ¥20b (FY, 2025) |
Gross profit | Gross profit N/A | Gross profit NT$130.5b (FY, 2025) | Gross profit ¥8.8b (FY, 2025) |
Net income | Net income N/A | Net income NT$41.5b (FY, 2025) | Net income ¥4b (FY, 2025) |

United Microelectronics Corporation (UMC, 聯華電子股份有限公司) is a semiconductor foundry company that provides integrated circuit (IC) fabrication services.
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OmniVision Integrated Circuits Group (豪威集成电路(集团)股份有限公司, formerly known as Will Semiconductor, 韦尔股份) is a semiconductor design company that provides sensor, analog, and display solutions.
View company