This week, 3 Semiconductors & Semiconductor Equipment stocks are improving their overall ratings on Portfolio Grader. Each of these stocks is rated an “A” (“strong buy”) or “B” overall (“buy”).

Cascade Microtech, Inc. (CSCD) improves from a B to a A rating this week. Cascade Microtech, Inc. designs, develops, manufactures and markets advanced wafer probing and test socket solutions for the electrical measurement and testing of high performance chips. The company also gets A’s in earnings revisions and earnings surprise. For more information, get Portfolio Grader’s complete analysis of CSCD stock.

This is a strong week for Himax Technologies, Inc. Sponsored ADR (HIMX). The company’s rating climbs to A from the previous week’s B. Himax Technologies, Inc. Sponsored ADR designs and manufactures integrated circuits. The company also gets A’s in earnings revisions and earnings momentum. For more information, get Portfolio Grader’s complete analysis of HIMX stock.

GigPeak, Inc. (GIG) shows solid improvement this week. The company’s rating rises from a B to a A. GigPeak, Inc. is a fabless semiconductor manufacturer of electronic engines for the optically connected digital world. The company also gets A’s in sales growth, earnings revisions, and earnings surprise. For more information, get Portfolio Grader’s complete analysis of GIG 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.