The grades of three Semiconductor stocks are better this week, according to the Portfolio Grader database. Every one of these stocks has an “A” (“strong buy”) or “B” overall (“buy”) rating.

FSI International (NASDAQ:FSII) is making headway this week, with the company’s rating improving to an A (“strong buy”) from a B (“buy”) last week. FSI International is a supplier of processing equipment used at key production steps to manufacture microelectronics, including semiconductor devices and thin film heads. In Portfolio Grader’s specific subcategories of Earnings Growth, Earnings Momentum, and Sales Growth, FSII also gets A’s. For more information, get Portfolio Grader’s complete analysis of FSII stock.

This week, Himax Technologies’ (NASDAQ:HIMX) ratings are up from a B last week to an A. Himax Technologies designs and manufactures integrated circuits. The stock price has risen 51.3% over the past month, better than the 1.6% increase the Nasdaq has seen over the same period of time. For more information, get Portfolio Grader’s complete analysis of HIMX stock.

Taiwan Semiconductor Manufacturing’s (NYSE:TSM) ratings are looking better this week, moving up to an A from last week’s B. Taiwan Semiconductor Manufacturing makes semiconductors based on its own or third-party proprietary integrated circuit designs. For more information, get Portfolio Grader’s complete analysis of TSM stock.

Louis Navellier’s proprietary Portfolio Grader stock ranking system assesses roughly 5,000 companies every week based on a number of fundamental and quantitative measures. Stocks are given a letter grade based on their results — with A being “strong buy,” and F being “strong sell.” Explore the tool here.