发明申请
US20110034047A1 Negative Thermal Expansion System (NTES) Device for TCE Compensation in Elastomer Composites and Conductive Elastomer Interconnects in Microelectronic Packaging 有权
微电子封装中弹性体复合材料和导电弹性体互连中TCE补偿的负热膨胀系统(NTES)装置

Negative Thermal Expansion System (NTES) Device for TCE Compensation in Elastomer Composites and Conductive Elastomer Interconnects in Microelectronic Packaging
摘要:
A method for fabricating a negative thermal expanding system device includes coating a wafer with a thermally decomposable polymer, patterning the decomposable polymer into repeating disk patterns, releasing the decomposable polymer from the wafer and forming a sheet of repeating patterned disks, suspending the sheet into a first solution with seeding compounds for electroless decomposition, removing the sheet from the first solution, suspending the sheet into a second solution to electrolessly deposit a first layer material onto the sheet, removing the sheet from the second solution, suspending the sheet into a third solution to deposit a second layer of material having a lower TCE value than the first layer of material, separating the patterned disks from one another, and annealing thermally the patterned disks to decompose the decomposable polymer and creating a cavity in place of the decomposable polymer.
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