International Business Machines Corporation

Xiaomin Duan

Christian Jacobi

Patrick James Meaney

Joel Abraham Silberman

Robert J Sonnelitter, Iii

Glenn David Gilda

Arthur J O'Neill

Xiaoxiong Gu

Hubert Harrer

Yong Liu

Rajat Rao

Michael Jason Cade

Concurrent servicing of a first cable of a cable pair while a second cable of the cable pair remains operational improves multi-processor computer system availability and serviceability. A pair of processing chips in different processing drawers may continue operation by way of the second cable while the first cable is degraded or serviced. Upon the servicing of the first cable, the serviced cable may transition to a fully operational state with no interruptions to the operations between the processing drawers by way of the second cable. Since cable faults are typically more common than processing chip or processing drawer faults, identification of cable faults and the ability to maintain operations of the processing drawers connected therewith is increasingly important.

Cable pair concurrent servicing

Circuits for shielding devices from electromagnetic coupling with through-silicon vias are shown that include a substrate having a through via, which provides access to a device layer on a first surface of the circuit to a device layer on a second surface of the circuit; a conductive layer on the first side of the substrate; a contact point on one of the device layers; and a grounded buried interface tie on the conductive layer, adjacent to the contact point, to isolate the contact point from coupling noise.

Through silicon via noise suppression using buried interface contacts

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Hamburg, Germany

Xiaomin Duan