Aehr Test Systems has filed a patent for a tester apparatus with features like insertion and removal apparatus, thermal posts, independent gimbaling, photo detector, thermal control methods, detect circuitry, through posts with stand-offs, and voltage retargeting. Claims 1-45 have been canceled. GlobalData’s report on Aehr Test Systems gives a 360-degree view of the company including its patenting strategy. Buy the report here.

According to GlobalData’s company profile on Aehr Test Systems, 3D memory devices was a key innovation area identified from patents. Aehr Test Systems's grant share as of January 2024 was 60%. Grant share is based on the ratio of number of grants to total number of patents.

Tester apparatus with various components for functionality

Source: United States Patent and Trademark Office (USPTO). Credit: Aehr Test Systems

The patent application (Publication Number: US20240036103A1) describes a testing apparatus designed to test electronic devices. The apparatus includes a socket with a formation for holding an electronic device with an input terminal and a light emitter. An input contact on the socket provides electric power to the input terminal, causing the light emitter to transmit light. A temperature modification device and a heat sink on opposite sides of the socket create a temperature differential to modify the electronic device's temperature. A heat dissipation device connected to the heat sink removes the generated heat.

Furthermore, the apparatus includes additional components such as a thin chuck, a thermal chuck, a light-absorbing coating on the heat sink, and a heat dissipation device with fins for efficient heat removal. The method of testing electronic devices involves inserting the device into the socket, providing electric power, changing the temperature using the temperature modification device, absorbing light with the heat sink, and removing the heat with the heat dissipation device. This innovative testing apparatus aims to provide a comprehensive and efficient way to test electronic devices by controlling temperature and heat dissipation effectively.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.