This week, 8 Semiconductors & Semiconductor Equipment stocks are improving their overall rating on Portfolio Grader. Each of these rates an “A” (“strong buy”) or “B” overall (“buy”).

Lam Research Corporation (LRCX) gets a higher grade this week, advancing from a B last week to a A. Lam Research Corporation manufactures, markets, and services semiconductor processing equipment used in the making of integrated circuits. The company also gets A’s in earnings growth and free cash flow. For more information, get Portfolio Grader’s complete analysis of LRCX stock.

Maxim Integrated Products, Inc. (MXIM) earns a B this week, jumping up from last week’s grade of C. Maxim Integrated Products, Inc. designs, develops, manufactures, and markets a broad range of linear and mixed-signal integrated circuits. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of MXIM stock.

This is a strong week for Nanometrics Incorporated (NANO). The company’s rating climbs to A from the previous week’s B. Nanometrics Incorporated manufactures film thickness and overlay metrology systems. The company also gets A’s in earnings growth. For more information, get Portfolio Grader’s complete analysis of NANO stock.

Rudolph Technologies, Inc. (RTEC) shows solid improvement this week. The company’s rating rises from a B to a A. Rudolph Technologies, Inc. is engaged in the design, development, and manufacture of high-performance process control equipment used by semiconductor device manufacturers. The company also gets A’s in operating margin growth, earnings revisions, earnings surprise, and free cash flow. For more information, get Portfolio Grader’s complete analysis of RTEC stock.

PDF Solutions, Inc. (PDFS) improves from a C to a B rating this week. PDF Solutions, Inc. provides infrastructure technologies and services to optimize performance and improve yield of manufactured integrated circuits. For more information, get Portfolio Grader’s complete analysis of PDFS stock.

This week, Tower Semiconductor Ltd’s (TSEM) ratings are up from a C last week to a B. Tower Semiconductor Ltd an independent semiconductor foundry, manufactures analog intensive mixed-signal semiconductor devices in the United States, India, the Asia Pacific, Europe, and Israel. The company also gets A’s in sales growth, earnings growth, earnings revisions, return on equity, and free cash flow. For more information, get Portfolio Grader’s complete analysis of TSEM stock.

Lattice Semiconductor Corporation (LSCC) boosts its rating from a C to a B this week. Lattice Semiconductor Corporation designs, develops, and markets high speed programmable logic devices. The company also gets A’s in earnings momentum. For more information, get Portfolio Grader’s complete analysis of LSCC stock.

Camtek Ltd’s (CAMT) ratings are looking better this week, moving up to a B from last week’s C. Camtek Ltd designs, develops, manufactures, and markets automatic optical inspection (AOI) systems and related products. The company also gets A’s in earnings growth, earnings revisions, and earnings surprise. For more information, get Portfolio Grader’s complete analysis of CAMT 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.