Temporary fixing sheet
AssigneeNitto Denko Corporation
InventorsYuta SHIMAZAKI, Eiichi IMOTO, Daisuke SHIMOKAWA, Kunio NAGASAKI
Life of this patent
Estimating the term…
Abstract
The present invention provides a temporary fixing sheet which firmly holds a ceramic sheet in a cutting step for the ceramic sheet and the like, can provide high cutting accuracy, then can efficiently and easily peel a chip from itself by being cooled to a predetermined temperature or lower, gives a high degree of freedom to designing and has adequate handleability. The temporary fixing sheet has a resin layer which contains a urethane polymer component and a vinyl polymer, develops the tack strength at a particular temperature equal to or higher than 40° C., and loses the tack strength at the particular temperature or lower.
Claims9
A temporary fixing sheet comprising a resin layer which contains a urethane polymer component and a vinyl polymer, develops tack strength at a particular temperature equal to or higher than 40° C., and loses the tack strength at the particular temperature or lower.
Dependencies are inferred from the claim text.