July 2026
www.us -
tech.com
in 1kW+ AI rocessor Burn-In Continued from previous page
Thermal Control To manage dissipation requirements of
up to 1,700W and beyond, Sonoma uses di- rect liquid cooling across both the DPS units and individual DUT interfaces. This approach removes heat at the device contact point rather than relying on convective air loops, which become increasingly ineffective as device power rises. The platform also addresses the uneven
thermal requirements of advanced AI pack- ages. Because compute logic, HBM stacks, and other components may have different temperature limits on the same substrate, uniform heating can over-stress sensitive areas. Sonoma uses a custom multi-zone thermal head designed for the individual DUT, enabling independent tempera- ture regulation across distinct re- gions of the package. This allows engineers to keep thermally sensi- tive components such as HBM at lower temperatures while driving the main compute logic to higher stress targets.
Automating the Workflow From an operations stand-
point, Sonoma reduces the com- plexity of handling heavy burn-in boards by decoupling device load- ing from board movement. The platform can be equipped with a fully automated loader/unloader that supports a “JEDEC trays in, JEDEC trays out” workflow. It is compatible with automated guid- ed vehicles using the AGV E84 standard, as well as manual ma- terial transport trolleys. During operation, the inter-
nal BIMs remain stationary within the chamber’s 11 eleva- tions while the automated han- dler moves individual devices into and out of test sockets. This protects high-pin-count socket contacts, reduces mechanical wear on heavy connectors, and shortens chamber idle time. The automation suite also supports chip ID and barcode tracking, op- tical socket inspection, and auto- mated software binning for im- mediate pass/fail data logging. As AI processors continue to increase in power density, tradi-
Run with us.
There is no better way to reach the Electronic High Tech and Manufacturing Community than advertising in U.S. Tech.
www.us-tech.com. Sonoma with auto loader and unloader. Managing Thermal and Electrical Demands
tional air-cooled and semi-automated burn- in methods face clear limitations in thermal control, voltage stability, handling, and floor efficiency. The Sonoma platform addresses these challenges by combining localized liq- uid-cooled power delivery, multi-zone ther- mal control, stationary-board chamber ar- chitecture, and optional full automation. For manufacturers qualifying and producing the next generation of xPU devices, those capa- bilities are becoming central to reliable, scal- able high-power burn-in. Contact: Aehr Test Systems,
400 Kato Terrace, Fremont, CA 94539 % 510-623-9400 E-mail:
sales@aehr.com Web:
www.aehr.com r
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ELEVATE QUALITY AT EVERY STAGE
FOX-XP FOX-NP SONOMA TAHOE
AEHR.com
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