Raytek Semiconductor, Inc. manufactures and sells semiconductor wafer-level packaging solutions in Taiwan and internationally. Its products and technologies include Wafer Rerouting, CuNiAu RDL wiring, Copper pillar and Lead Free Bumps Wafer-Level Chip-Scale Package, Backside Metallization, Silicon photonics, and TSV tops. The company also offers turnkey packaging design and process integration services. Founded in 2016, it is based in Hukou, Taiwan.