6 Semiconductors & Semiconductor Equipment 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”).

Lam Research Corporation’s (LRCX) ratings are looking better this week, moving up to a B from last week’s C. Lam Research Corporation manufactures, markets, and services semiconductor processing equipment used in the making of integrated circuits. The company also gets A’s in return on equity and free cash flow. For more information, get Portfolio Grader’s complete analysis of LRCX stock.

First Solar, Inc. (FSLR) earns a A this week, jumping up from last week’s grade of B. First Solar, Inc. designs and manufactures solar modules. The company also gets A’s in operating margin growth, earnings surprise, earnings momentum, and free cash flow. For more information, get Portfolio Grader’s complete analysis of FSLR stock.

This is a strong week for MKS Instruments, Inc. (MKSI). The company’s rating climbs to B from the previous week’s C. MKS Instruments, Inc. provides instruments, subsystems, and process control solutions that measure, control, power, monitor, and analyze critical parameters to improve the process performance and productivity of advanced manufacturing processes. The company also gets A’s in earnings revisions and earnings surprise. For more information, get Portfolio Grader’s complete analysis of MKSI stock.

CEVA, Inc. (CEVA) improves from a C to a B rating this week. 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 earnings growth and earnings momentum. For more information, get Portfolio Grader’s complete analysis of CEVA stock.

Cohu, Inc. (COHU) shows solid improvement this week. The company’s rating rises from a C to a B. Cohu, Inc. develops, manufactures, markets, sells, and services test handling and burn-in related equipment and thermal sub-systems for the global semiconductor industry. The company also gets A’s in earnings surprise. For more information, get Portfolio Grader’s complete analysis of COHU stock.

Advanced Micro Devices, Inc. (AMD) gets a higher grade this week, advancing from a C last week to a B. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of AMD 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.