This week, 7 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”).

This week, KLA-Tencor Corporation’s (KLAC) ratings are up from a B last week to a A. KLA-Tencor Corporation manufactures yield management and process monitoring systems for the semiconductor industry. The company also gets A’s in operating margin growth, earnings growth, earnings revisions, and return on equity. For more information, get Portfolio Grader’s complete analysis of KLAC stock.

This week, Texas Instruments Incorporated (TXN) pushes up from a B to a A rating. Texas Instruments Incorporated is a designer and manufacturer of semiconductors that are sold to electronics designers and manufacturers. The company also gets A’s in return on equity. For more information, get Portfolio Grader’s complete analysis of TXN stock.

Analog Devices, Inc.’s (ADI) ratings are looking better this week, moving up to a B from last week’s C. Analog Devices, Inc. is engaged in the design, manufacture and marketing of high-performance analog, mixed-signal and digital signal processing integrated circuits used in industrial, communication, computer and consumer applications. The company also gets A’s in earnings growth, earnings momentum, and return on equity. For more information, get Portfolio Grader’s complete analysis of ADI stock.

NVE Corporation (NVEC) boosts its rating from a C to a B this week. NVE Corporation is an electronics component manufacturer specializing in the combination of magnetically-sensitive materials with integrated circuits. The company also gets A’s in earnings revisions. For more information, get Portfolio Grader’s complete analysis of NVEC stock.

CEVA, Inc. (CEVA) shows solid improvement this week. The company’s rating rises from a C to a B. CEVA, Inc. licenses silicon intellectual property (SIP) that is used mainly for the handsets, portable multimedia, and consumer electronics markets. The company also gets A’s in operating margin growth. For more information, get Portfolio Grader’s complete analysis of CEVA stock.

Amkor Technology, Inc. (AMKR) earns a A this week, jumping up from last week’s grade of B. Amkor Technology, Inc. provides outsourced semiconductor packaging and test services in the United States and internationally. The company also gets A’s in sales growth, earnings growth, earnings revisions, and earnings momentum. For more information, get Portfolio Grader’s complete analysis of AMKR stock.

This is a strong week for GigPeak, Inc. (GIG). The company’s rating climbs to B from the previous week’s C. 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.