摘要:
An electromagnetic wave shielding layer can be provided on the backside of a semiconductor element that is flip-chip connected to an adherend, and a semiconductor device having the electromagnetic wave shielding layer can be manufactured without deteriorating productivity. The present invention provides a film for the backside of a flip-chip type semiconductor to be formed on the backside of a semiconductor element that is flip-chip connected to an adherend, having an adhesive layer and an electromagnetic wave shielding layer.
摘要:
The present invention aims to provides a method of manufacturing a film for a semiconductor device in which a dicing film, a die bond film, and a protecting film are laminated in this order, including the steps of: irradiating the die bond film with a light ray having a wavelength of 400 to 800 nm to detect the position of the die bond film based on the obtained light transmittance and punching the dicing film out based on the detected position of the die bond film, and in which T2/T1 is 0.04 or more, wherein T1 is the light transmittance of the portion where the dicing film and the protecting film are laminated and T2 is the light transmittance of the portion where the dicing film, the die bond film, and the protecting film are laminated.
摘要:
A novel organic non-linear optical material and a device using the same are disclosed. The material hardly makes reversal symmetrical molecular configuration in a bulk state such as a crystal and a thin layer and shows a high non-linear optical effect. A non-linear optical device using the material has an excellent properties. The organic non-linear optical material is comprised of the following compound: ##STR1## wherein R.sub.1, R.sub.3 and R.sub.4 are independently a hydrogen atom, a cyano group, a phenyl group, an amino group, an alkoxy group, an acylamino group, an alkylthio group, an alkyl group, an alkoxycarbonyl group, carbamoyl group or a heterocyclic group, provided that R.sub.3 is allowed to link together with R.sub.4 to form a ring and R.sub.1, R.sub.3 and R.sub.4 are not hydrogen atom at the same time; R.sub.2 is a hydrogen atom, an alkyl group or an acyl group; and said groups represented by R.sub.1, R.sub.2, R.sub.3, R.sub.4 and the ring formed by linking the groups represented by R.sub.3 and R.sub.4 are allowed to have a substituent.
摘要:
A non-linear optical device applicable to use such as the generation of the higher harmonic waves and the parametric amplification of laser beam is disclosed. The device comprises a crystal of a compound represented by the following Formula I: ##STR1## wherein A is an electron attractive group having 0 to 5 carbon atoms; R.sub.1 is a hydrogen atom, an alkyl group or an alkenyl group; R.sub.2 is a hydroxyl group, an acylamino group or a ureido group; and R.sub.3 is a hydrogen atom or a mono-valent substituent.