SemiconductorsInfineon, Renesas and others scale back after wave of optimism-driven investmentGermany's Infineon Technologies, the world's top supplier of power semiconductors, has announced layoffs. © ReutersTOKYO -- Producers of power semiconductors, a key component in the electric-vehicle supply chain, are shrinking their workforces and delaying investments as disappointing growth in the EV market leaves them saddled with excess capacity.Japan's Renesas Electronics plans layoffs that could ru...