▎ 摘　　要

NOVELTY - The method involves preparing a first graphene sheet (20) by depositing a titanium layer (24) on an upper surface of the first graphene sheet. A first layer of metal is deposited on the layer of titanium on the first graphene sheet. A second graphene sheet (22) is prepared by depositing the layer of titanium on an upper surface of the second graphene sheet. A molybdenum layer (28) is deposited on the layer of titanium on the second graphene sheet. A second layer of metal is deposited on the layer of molybdenum. The first and second graphene sheets are joined to each other by alloy bonding the first and second metal layers. USE - Method for manufacturing a heat spreader for a printed wiring board (PWB) in weight-restricted air- and spacecraft electronic payload applications. ADVANTAGE - The method allows alloy bonded graphene sheets to be exploited for fabricating lighter weight conductive core PWB needed for weight restricted air and spacecraft electronic payloads. The method allows heat spreading core materials for PWBs with better thermal performance and lighter weight. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a structure for manufacturing a heat spreader for a PWB. Graphene sheets (20, 22) Titanium layer (24) Thin layer (26) Molybdenum layer (28) Indium layer (30)