3results about How to "Excellent etch resistance" patented technology

The invention relates to opaque quartz glass with high absorption in the near-infrared range and a production method thereof. The invention also relates to the use of the opaque quartz glass according to the invention or of the opaque quartz glass obtained from the method according to the invention in a processing chamber in which semiconductor wafers are processed.

This invention provides a composition for forming a photoresist underlayer using a diarylmethane derivative, which can form a film exhibiting high etch resistance, good dry etch rate ratio and optical constants, good coverage even for so-called uneven substrates, small thickness variation after embedding, and flatness. Furthermore, it provides a method for manufacturing a polymer suitable for the photoresist underlayer forming composition, a photoresist underlayer using the photoresist underlayer forming composition, and a method for manufacturing a semiconductor device. The photoresist underlayer forming composition comprises an aromatic compound (A) having 6 to 120 carbon atoms, a reaction product of a compound represented by the following formula (1), and a solvent. In formula (1), Z represents -(C=O)- or -C(-OH)-, Ar1 and Ar2 each independently represent a substituted phenyl, naphthyl, anthraceneyl, or pyrene group, and ring Y represents a substituted aliphatic ring, a substituted aromatic ring, or a fused ring of substituted aliphatic and aromatic rings.

The application relates to a resistance conductive material and a preparation method and application thereof, wherein the resistance conductive material comprises, from bottom to top, a copper foil layer, a transition layer and a resistance layer; the resistance layer comprises a dispersion reinforcing phase and a homogeneous phase; the dispersion reinforcing phase is subjected to surface pretreatment before being added into an electroplating solution. Through the introduction of the transition layer and the dispersion reinforcing phase, the diffusion of copper into the resistance layer is inhibited, the high resistivity of the resistance layer is maintained, and the application prospect is good.