International Business Machines Corporation

Globalfoundries Inc.

Chenzhou Lian

Kamal Kumar Sikka

Paul F Bodenweber

Kathryn C Rivera

Jon Alfred Casey

Taryn J Davis

Marcus E Interrante

Evan G Colgan

Hilton T Toy

Jeffrey Allen Zitz

Janak G Patel

William E Bernier

Rajneesh Kumar

Kenneth Charles Marston

Peter Slota, Jr

Yi Pan

An electronic device console includes a console body that houses a chip package, and a duct extending from the console body. An interior volume of the duct is in fluid communication with an interior volume of the console body. A first vent is at a distal end of the duct. A second vent is in a wall of the console body. The console may be oriented in a first orientation and a second orientation. The duct functions as a chimney for natural convection cooling of the chip package when the console is oriented in the first orientation. The console body functions as a chimney for natural convection cooling of the chip package when the console is oriented in the second orientation.

Electronic device console with natural draft cooling

Embodiments of the invention comprise a homogeneous heat spreading cap element in chip packages to facilitate better heat spreading and dissipation. The heat spreading cap comprises a single high-K graphite layer supported by a copper frame for increased stability and reduced thermal warpage during handling and operation while minimizing thermal penalty by reducing the amount of material having a relatively low heat conductivity that is needed in conventional heat spreading caps.

Heat spreading layer with high thermal conductivity

A semiconductor device package which includes a semiconductor package, a semiconductor device joined to the semiconductor package; and a lid to be placed over the semiconductor device and joined to the semiconductor package. The lid includes: a block of a first material having a first surface and a second surface, the second surface facing the semiconductor device, the block having perforations extending between the first surface and the second surface; inserts for filling the perforations, each of the inserts being made of a second material, at least one of the inserts protrudes beyond the second surface towards the semiconductor device; and a bonding material to bond the inserts to the block so that the at least one of the inserts protrudes beyond the second surface towards the semiconductor device. Also included is a method of assembling a semiconductor device package.

Thermal hot spot cooling for semiconductor devices

An array of solder balls is attached to solder pads of one of a first substrate and a second substrate. After aligning the array of solder balls relative to solder pads of the other of the first substrate and the second substrate, a thermal-mass-increasing fixture is placed on a surface of the second substrate to form an assembly of the first substrate, the second substrate, and the array of the solder balls therebetween, and the thermal-mass-increasing fixture. The thermal-mass-increasing fixture is in physical contact with at least a surface of a periphery of the second substrate. The thermal-mass-increasing fixture reduces the cool-down rate of peripheral solder balls after a reflow step, thereby increasing time for deformation of peripheral solder balls during the cool-down and reducing the mechanical stress on the solder balls after the cool-down.

Uniform solder reflow fixture

Growing community of inventors

Poughquag, NY, United States of America

Chenzhou Lian