摘要:
Photoresists suitable for use for forming relief structures of highly heat-resistant polymers and which contain soluble polymeric precursors which carry radiation-reactive radicals bonded through carboxylic ester groups have an increased light-sensitivity when they also contain at least one radiation-reactive, polymerizable allyl compound which has a boiling point above 180.degree., the allyl group thereof being bonded via an oxygen, sulfur and/or nitrogen atom. The highly heat-resistant polymers which can be prepared by means of these photoresists have excellent chemical, electrical and mechanical properties.
摘要:
An improved development process for relief structures based on radiation-crosslinked polymeric precursors of polymers which are resistant to high temperature in which the development fluid used is an aliphatic or cycloaliphatic ketone having 3 to 7 carbon atoms, is distinguished by rapid and complete removal of soluble polymeric material from the substrate with, at the same time, a minimum amount of attack on the radiation-crosslinked polymeric structures.
摘要:
A radiation-sensitive polymer and a mixture containing this radiation-sensitive polymer as a binder are disclosed. A process for the preparation of the radiation-sensitive polymer binder and a positive-working radiation-sensitive recording material which is prepared using the radiation-sensitive mixture are also disclosed.
摘要:
The invention relates to solvent systems which are based on water-soluble amino derivatives and propylene glycol components, for removing photoresists. These solvent systems are comprised of(a) from about 10 to 100% by weight of at least one water-soluble amine of the general formula ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 denote H or alkyl groupsn,m denote 0 to 2, ando denotes 1 to 3; and(b) from about 0 to 90% by weight of at least one water-soluble propylene glycol derivative of the general formula ##STR2## in which R.sup.3, R.sup.4 denote H, alkyl or ##STR3## and P denotes 1 to 3.
摘要:
A positive-working radiation-sensitive mixture is disclosed which contains as essential constituents:a) an .alpha.-carbonyl-.alpha.-sulfonyl-diazomethane, which forms a strong acid on irradiation, of the general formula I ##STR1## in which R.sup.1 and R.sup.2, independently of one another, denote an alkyl-, cycloalkyl-, aryl- or heteroaryl radicalb) a compound having at least one C--O--C or C--O--Si bond which can be cleaved by acid, andc) a water-insoluble binder which is soluble or at least swellable in aqueous-alkaline solutions.The radiation-sensitive mixture according to the invention is notable for a high sensitivity over a wide spectral range. It also exhibits a high thermal stability and does not form any corrosive photoylsis products on exposure to light.
摘要:
A positively operating radiation-sensitive mixture comprising a binder which is insoluble in water but soluble or at least swellable in aqueous alkaline solution, and as a photoactive component a polyfunctional .alpha.-diazo-.beta.-keto ester of the general formula I ##STR1## in which R.sup.1 denotes an aliphatic, cycloaliphatic or araliphatic or aromatic radical having 4 to 20 carbon atoms, in which individual CH.sub.2 groups can be replaced by oxygen or sulfur atoms or by ##STR2## or NH groups and/or contain keto groups, X denotes an aliphatic, cycloaliphatic, carbocyclic, heterocyclic or araliphatic radical having 2 to 22 carbon atoms, in which individual CH.sub.2 groups can be replaced by oxygen or sulfur atoms or by the groups --NR.sup.2 --, --C(O)--O--, --C(O)--NR.sup.2 --, --C(O)-- ##STR3## --NR.sup.2 --C(O)--NR.sup.3 --, --O--C(O)--NR.sup.2 --, --C(O)-- ##STR4## or --O--C(O)--O--, or CH groups can be replaced by ##STR5## in which R.sup.2 and R.sup.3 independently of one another represent hydrogen or an aliphatic, carbocyclic or araliphatic radical,m denotes an integer from 2 to 10 andn denotes an integer from 0 to 2, whereinm-n is .gtoreq.2,is described.The radiation-sensitive mixture is particularly suitable for exposure using radiation of wavelength 190 to 300 nm.
摘要:
A coating solution for producing glassy layers on a substrate comprises a silicic acid ester, an aliphatic alcohol as a solvent, an acid in a catalytically active quantity, and water. The alcohol contains at least 4 carbon atoms and the acid has a pK.sub.a of less than +3. The viscosity of the coating solution is table even at elevated temperatures and the amount of water added is increased. The glassy layers produced from the coating solution exhibit no striations.
摘要:
Polyfunctional compounds containing .alpha.-diazo-.beta.-keto ester units and sulfonate units are disclosed. The polyfunctional compounds have high sensitivity in the deep UV and high thermal stability. Processes for producing the compounds are disclosed. A preferred process first synthesizes .beta.-ketoester/sulfonate precursors and then uses diazo transfer to convert the precursors into the novel compounds. Radiation-sensitive mixtures containing the compounds are also disclosed.
摘要:
A positive-working photosensitive composition is disclosed that comprises a photosensitive compound which is either of the o-quinone diazide type or comprises a photolytic acid donor in combination with a compound containing a C--O--C group, a binder which is soluble or swellable in an aqueous-alkaline solution and a dye of the general formula I ##STR1## The photosensitive composition of the present invention has a higher photosensitivity than comparable compositions containing other dyes.
摘要:
A radiation-sensitive composition is disclosed comprising a polymeric binder which is insoluble in water, but soluble or at least swellable in aqueous alkaline solution and a 2,3,4,4'-tetrahydroxybenzophenone which is partially esterified with (1,2-naphthoquinone 2-diazide)-4- and/or -5-sulfonic acid, which additionally contains either a dihydroxybenzophenone which is completely esterified with (1,2-naphthoquinone 2-diazide)-4- and/or -5-sulfonic acid or a trihydroxybenzophenone which is partially or completely esterified with (1,2-naphthoquinone 2-diazide)-4- and/or -5-sulfonic acid. The weight ratio of esterified 2,3,4,4'-tetrahydroxybenzophenone to esterified di- or trihydroxybenzophenone varies between about 4:6 and 7:3 and the esterified hydroxybenzophenones, as a whole, are present in a proportion of 5 to 40% by weight, based on the total weight of solids contained in the composition. Also disclosed is a radiation-sensitive recording material comprising a support and a layer containing this composition, which is present on the support.