Advantest’s patented burn-in board features a socket, connector, wiring system, and compensation circuit to enhance signal transmission. The compensation circuit shortens signal rise/fall times by connecting to the longest wiring in the system. GlobalData’s report on Advantest gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Advantest, NFC-enabled implants was a key innovation area identified from patents. Advantest's grant share as of May 2024 was 45%. Grant share is based on the ratio of number of grants to total number of patents.
Compensation circuit for signal rise/fall time in burn-in board
A recently granted patent (Publication Number: US11994552B2) discloses a burn-in board designed for testing electronic devices. The board includes a socket, a connector, and a wiring system connecting the socket and the connector. What sets this burn-in board apart is the inclusion of a compensation circuit that shortens the rise time or fall time of signals transmitted through the wiring system. This compensation circuit specifically targets at least two wirings of different lengths, connecting to the longest wiring to enhance signal transmission efficiency.
Moreover, the burn-in board features additional components such as an external capacitor and a filter within the compensation circuit to further optimize signal characteristics. The patent also details the configuration of the external capacitor, comprising a first capacitor with a higher capacitance connected to the shortest wiring and a second capacitor connected to the longest wiring. This setup ensures that the compensation circuit effectively manages signal amplitudes across different frequencies. The burn-in board is specifically tailored for testing devices under test (DUT), with the compensation circuit's frequency characteristics adjusted based on the required rise time or fall time for the test signal. Additionally, the patent extends to a burn-in apparatus incorporating this innovative burn-in board design, showcasing its potential application in electronic device testing processes.
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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.
