Seven semiconductor stocks are moving up in their overall rating this week, according to the Portfolio Grader database. Every one of these is graded an “A” (“strong buy”) or “B” overall (“buy”).

M/A-COM Technology Solutions Holdings, Inc. (MTSI) is making headway this week, with the company’s rating improving to an A (“strong buy”) from a B (“buy”) last week. M/A-COM Technology Solutions designs, develops, manufactures, and markets semiconductors and modules for use in wireless and wireline applications across the radio frequency, microwave, and millimeterwave spectrum. In Portfolio Grader’s specific subcategories of Earnings Momentum, Earnings Revisions and Sales Growth, MTSI also gets A’s. For more information, get Portfolio Grader’s complete analysis of MTSI stock.

FSI International (FSII) boosts its rating from a B to an A this week. FSI International is a supplier of processing equipment used at key production steps to manufacture microelectronics, including semiconductor devices and thin film heads. For more information, get Portfolio Grader’s complete analysis of FSII stock.

CVD Equipment Corporation (CVV) is making progress this week as its rating of C (“hold”) from last week increases to a B (“buy”) rating this week. CVD Equipment develops, manufactures, and markets chemical vapor deposition equipment, annealing furnaces, and etching systems. For more information, get Portfolio Grader’s complete analysis of CVV stock.

International Rectifier Corporation (IRF) earns a B this week, jumping up from last week’s grade of C. International Rectifier is engaged in the design, manufacture, and marketing of power management semiconductors. For more information, get Portfolio Grader’s complete analysis of IRF stock.

This week, FormFactor, Inc. (FORM) pushes up from a C to a B rating. FormFactor designs, develops, and manufactures advanced semiconductor wafer probe cards. For more information, get Portfolio Grader’s complete analysis of FORM stock.

The rating of Hittite Microwave Corporation (HITT) moves up this week, rising from a C to a B. Hittite Microwave designs and develops integrated circuits, modules, and subsystems for radio frequency, microwave, and millimeter wave applications. For more information, get Portfolio Grader’s complete analysis of HITT stock.

This week, Semiconductor Manufacturing International Corp. Sponsored ADR’s (SMI) ratings are up from a C last week to a B. Semiconductor Manufacturing International manufactures, trades, packages, tests, and provides computer-aided design integrated circuits. Shares of the stock have been changing hands at an unusually rapid pace, three times the rate of the week prior. For more information, get Portfolio Grader’s complete analysis of SMI 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.