AEHR vs FOUR Comparison

Aehr Test Systems is engaged in test systems for burning-in and testing logic, optical, and memory integrated circuits. Increased quality and reliability needs of the Automotive and Mobility integrated circuit markets. The Company operates in one business segment, the designing, manufacturing, marketing and selling of advanced test and burn-in products to the semiconductor manufacturing industry in several geographic areas. The company provides production solutions across the product manufacturing flow to improve yield and reliability and has developed and introduced several inventive products, including the ABTSTM and FOX-PTM families of test and burn-in systems and FOX WaferPakTM Aligner, FOX-XP WaferPak Contactor, FOX DiePak Carrier and FOX DiePak Loader.

Shift4 Payments Inc is an independent provider of software and payment processing solutions in the U.S., expanding internationally. Its payments platform offers integrated products and services across in-store, online, mobile and tablet-based channels, including end-to-end payment processing, merchant acquiring services, a proprietary omni-channel gateway, eCommerce capabilities, and reporting tools. The company distributes its services through internal sales teams and partners, including independent software vendors (ISVs) and value-added resellers (VARs). Revenue is predominantly recurring, derived mainly from processing fees and subscription revenue from POS software, business intelligence tools and other technology solutions. The company derives maximum revenue from the United States.