摘要:
Die Erfindung betrifft eine Vorrichtung zur Temperatur behandlung von Substraten, insbesondere von Halbleiter kristallscheiben, bestehend aus einem Träger (1) für die Aufnahme der zu behandelnden Substrate (2), eine den Träger (1) aufnehmende rahmenförmige Halterung (3), die mit einem zeitgesteuerten Druckluftzylinder (5) gekoppelt und axial über eine Führung (6) verschiebbar ist und einer Heizeinrichtung. Die Heizeinrichtung ist mit einer Vakuum ansaugvorrichtung (8) gekoppelt und enthält mehrere ron denförmige Heizplatten (7), gegen die die im Träger (1) befindlichen Substrate (2) gesaugt werden. Die Vorrichtung wird verwendet für Niedrigtemperaturprozesse in der Halb leitertechnologie, insbesondere bei Fotolithographiepro zessen, und erspart unnötige Umhordvorgänge.
摘要:
Piperazine containing positive photoresist strippin compositions are provided. Formulations include N aminoalkylpiperazines with the formula bis-N-aminoalkylpiperazines of the formula N-hydroxyalkylpiperazine of the formula and bis-hydroxyalkylpiperazines with structure In the above formulae n = 1-6. Also included are piperazine derivatives such as those of the above formulae with a branch chain alkyl of 1-6 C atoms, and 5-6 C atom cycloalkyl substituted compounds wherein the cycloalkyl is substituted for -(CH 2 ) n - Components which may be mixed with the above described piperazine in preparing the positive photoresist stripping compositions of the invention include alkyl or cycloalkyl-2-pyrrolidones of the formula Other amide type solvents with the boiling point in excess of 200°C as well as high boiling diethylene glycol ethers may also be incorporated.
摘要:
A developer for positive photoresists comprises an aqueous solution of (a) a quaternary ammonium hydroxide of the formula: wherein Ri, R 2 , R 3 and R 4 are each a C 1-4 alkyl, C1-5 or hydroxyalkyl group, and (b) at least one development modifier which is a water-soluble aliphatic ketone, cyclic ether or tertiary amine, and optionally, (c) at least one water-soluble primary or secondary amines as further development modifier. Preferred modifiers (b) are C3-8 ketones, 3- to 6-membered alicyclic ethers and C3-6 aliphatic amines. Hydroxide (a) can be tetramethyl ammonium or trimethyl ethanol ammonium hydroxide. A quinonediazide positive photoresist material is imagewise exposed and treated in the developer, to give a resist of high sensitivity and resolution, suitable for use in an electronic component.
摘要:
Process for providing improved solvent resistant surfaces of relief flexographic printing plates prepared by imagewise exposure and liquid development of the unexposed areas of a layer of photosensitive etastomeric composition comprising a high molecular weight butadiene/acrylonitrile copolymer and a monomeric compound wherein, optionally after drying, the developed surface is, in either order, (1) postexposed to actinic radiation, and (2) contacted with two successive aqueous halogen solutions, first, 0.01 to 3.5% by weight aqueous bromine solution for about 15 seconds to 20 minutes or 0.2 to 10% by weight aqueous iodine solution for about 1.0 to 10 minutes, followed by chlorine solution equivalent to that supplied by an aqueous solution, 0.01 to 1.0 molar in NaOCI and 0.012 to 1.2 molar in HCI, for about 15 seconds to 5 minutes.
摘要:
A developer for a light-sensitive lithographic printing plate having an o-quinonediazide-containing light-sensitive layer is disclosed. The developer is comprised of an aqueous solution of an alkali silicate containing an organic boron compound. The organic boron compound is represented by the formula the substituents are defined within the specification. By utilizing the developer of the invention it is possible to provide excellent developing power, development stability, processability and preferred forming properties during development..
摘要:
A developer solution suitable for use with a positive-working, light-sensitive resist composition derived from a novolac resin and a quinone diazide contains an additive comprising a tetraalkylammonium or phosphonium cation, a benzyltrialkylammonium or phosphonium cation or a benzyltriarylammonium or phosphonium cation which enhances the selectivity of the developer.
摘要:
The present Invention relates to a composition for cleaning a surface of a substrate, which contains as main components, (a) a halogenated hydrocarbon solvent, (b) a fluorine-containing alcohol and (c) an organinc acid.