# US 9,437,519 B2 · Tim strain mitigation in electronic modules > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,437,519 B2 - Document ID: US9437519B2 - Status: Granted - Kind: B2 - Application number: 14/189,597 - Filed: 2014-02-25 - Published: 2015-08-27 - Granted: 2016-09-06 - Earliest claimed: 2014-02-25 - Assignees: International Business Machines Corporation - Applicants: International Business Machines Corporation - Inventors: Gerard McVicker; Sri M. Sri-Jayantha - Web page: https://patentgrep.com/patent/US9437519B2 ## CPC - H10W 40/22: characterised by their shape, e.g. having conical or cylindrical projections - H10W 42/121: {protecting against mechanical damage (H10W76/00, H10W74/00 take precedence)} - H10W 76/12: characterised by their shape - H10W 76/161: {Containers comprising no base} - H10W 40/70: Fillings or auxiliary members in containers or in encapsulations for thermal protection or control - H10W 72/877: {Bump connectors and die-attach connectors} - H10W 74/15: on active surfaces of flip-chip devices, e.g. underfills - H10W 90/724: {between a chip and a stacked insulating package substrate, interposer or RDL} - H10W 90/734: {between a chip and a stacked insulating package substrate, interposer or RDL} - Y10T 428/24777: Edge feature - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A lid including a lid body, and a wing portion, the wing portion being disposed on a die side of the lid body such that an edge of the wing portion is flexible independent from a portion of the lid body adjacent to the edge of the wing portion. ## Claims ### Claim 1 A heat spreading lid comprising: a lid body; and a wing portion, the wing portion being disposed on a die side of the lid body such that an edge of the wing portion is flexible independent from a portion of the lid body adjacent to the edge of the wing portion, wherein a thermal interface material is disposed between the die and the wing portion such that the wing portion moves with the thermal interface material independently from the lid body. ### Claim 2 (depends on 1) The lid according to claim 1, wherein a gap is formed between the wing portion and a portion of the lid body above the wing portion such that the gap separates the wing portion and the portion of the lid body in a vertical direction. ### Claim 3 (depends on 1) The lid according to claim 1, wherein the wing portion has a thickness less than a thickness of a center portion of the lid body. ### Claim 4 (depends on 1) The lid according to claim 1, wherein the lid body comprises a lid insert and a lid frame in which the lid insert is disposed, and wherein the wing portion comprises an edge portion of the lid insert. ### Claim 5 (depends on 4) The lid according to claim 4, wherein the wing portion comprises a corner of the lid insert. ### Claim 6 (depends on 1) The lid according to claim 1, wherein the wing portion is adapted to overlap a corner of the die. ### Claim 7 (depends on 1) The lid according to claim 1, wherein the wing portion is flexible independent from a portion of the lid body above the wing portion. ### Claim 8 (depends on 1) The lid according to claim 1, wherein the lid includes a plurality of ones of the wing portion, and further comprising a trench extending between two wing portions. ### Claim 9 A device comprising: a die; a thermal interface material disposed on the die; a heat spreading lid disposed on the thermal interface material opposite the die, the lid comprising a lid body; and a wing portion, the wing portion being disposed on a die side of the lid body such that an edge of the wing portion is flexible independent from a portion of the lid body adjacent to the edge of the wing portion, wherein the thermal interface material is disposed between the die and the wing portion such that the wing portion moves with the thermal interface material independently from the lid body. ### Claim 10 (depends on 9) The device according to claim 9, wherein a gap is formed between the wing portion and a portion of the lid body above the lid portion. ### Claim 11 (depends on 9) The device according to claim 9, wherein the wing portion is connected to a wing pedestal, the wing pedestal being disposed between the lid body and the die. ### Claim 12 (depends on 9) The device according to claim 9, wherein the lid body comprises a lid insert and a lid frame in which the lid insert is disposed, and wherein the wing portion comprises an edge portion of the lid insert. ### Claim 13 (depends on 12) The device according to claim 12, wherein the wing portion comprises a corner of the lid insert. ### Claim 14 (depends on 9) The device according to claim 9, wherein the wing portion is adapted to overlap a corner of the die. ### Claim 15 (depends on 9) The device according to claim 9, wherein the wing portion is serrated. ### Claim 16 (depends on 9) The device according to claim 9, wherein the lid includes a plurality of ones of the wing portion, and further comprising a trench extending between two wing portions. ### Claim 17 (depends on 9) The device according to claim 9, wherein the wing portion is disposed over a corner of the die. ### Claim 18 A device comprising: a die; a thermal interface material disposed on the die; and a heat spreading lid disposed on the thermal interface material opposite the die, the lid including a trench extending along a portion of the lid corresponding to a corner of the die, wherein the trench moves with the thermal interface material independently from the lid body. ### Claim 19 (depends on 18) The device according to claim 18, wherein the lid further comprises a wing portion, the wing portion being disposed on a die side of the lid such that an edge of the wing portion is flexible independent from a portion of the lid adjacent to the edge of the wing portion. ### Claim 20 (depends on 18) The device according to claim 18, wherein a gap is formed between the wing portion and a portion of the lid body above the lid portion.