发明授权
US08704382B2 Film for flip chip type semiconductor back surface 有权
倒装芯片型半导体背面薄膜

Film for flip chip type semiconductor back surface
摘要:
The present invention provides a film for flip chip type semiconductor back surface, which is to be formed on a back surface of a semiconductor element flip-chip connected on an adherend, the film including a wafer adhesion layer and a laser marking layer, in which the wafer adhesion layer has a light transmittance of 40% or more in terms of a light having a wavelength of 532 nm and the laser marking layer has a light transmittance of less than 40% in terms of a light having a wavelength of 532 nm.
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