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batch metal-etch systems

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Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004171
EISBN: 978-1-62708-184-9
... Abstract This article presents a detailed examination of corrosion at the various production stages of wafer fabrication. The corrosion issues related to batch metal-etch systems and single-wafer metal-etch systems are also discussed. The article provides a case study, which illustrates...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003065
EISBN: 978-1-62708-200-6
... glass-ceramic/metal seals glass/metal seals grinding optical fibers polishing THE LARGE MAJORITY of the commercially important glasses are processed from a carefully calculated batch of raw materials that is then melted in special furnaces. There are various types of melting units used...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003198
EISBN: 978-1-62708-199-3
... heating elements pumping systems salt bath equipment Types of Heat Treating Furnaces FURNACES commonly used in heat treating are classified in two broad categories: batch furnaces and continuous furnaces. In batch furnaces, workpieces normally are loaded and unloaded manually. A continuous...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003022
EISBN: 978-1-62708-200-6
...—such as those used for metallizing of plastic films for packaging applications, flexible printed circuit boards, and video tapes—are beyond the scope of this article. Batch processes are generally used for vacuum metallizing of discrete plastic parts. The heart of a batch vacuum metallizing system...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006056
EISBN: 978-1-62708-175-7
..., contains a higher metallic binder content than the bulk material. Enriched zones are clearly visible in the etched microstructure. Contamination from other grades are identified through patches of different grain size, metallic binder, and solid-solution carbides, which are more readily observed after...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002171
EISBN: 978-1-62708-188-7
... Abstract Photochemical machining (PCM), also known as chemical blanking, is a metal-etching process that uses a photoresist to define the locations where the metal will be etched. This article describes the major steps used in the PCM process, namely, the preparation of the phototool, selection...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006360
EISBN: 978-1-62708-192-4
... is a non-carbide-forming metal such as gold, silver, or copper, the metal may form nanometer-scale clusters within the a-C:H matrix ( Ref 12 ). Industrial systems use programmable logic controllers (PLC) to maintain consistency from batch to batch and effectively make these processes “black box” from...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003781
EISBN: 978-1-62708-177-1
.... Chromic acid is toxic, may cause cancer by inhalation, and must not enter ground water, bodies of water, or sewage systems. See the Material Safety Data Sheets available from the supplier for conditions of use. Etching should follow soon after final polishing. The specimen should be cleaned in alcohol...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005787
EISBN: 978-1-62708-165-8
... and time cycles for annealing of alloy steels and carbon steel forgings. Different combinations of annealed microstructure and hardness are significant in terms of machinability. Furnaces for annealing are of two basic types, batch furnaces and continuous furnaces. The article concludes with a description...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002168
EISBN: 978-1-62708-188-7
... is manufacturing methodology. Laser cutting is ideal for batch processes, just-in-time, or low-to-medium volume production. Most laser-cutting work is performed on generic or multipurpose material handling systems, as opposed to dedicated automation controlled systems. Generally, there is a clear-cut reason...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003761
EISBN: 978-1-62708-177-1
... steels, such as sectioning, mounting, grinding, polishing, and etching, are discussed. The article also reviews the simple and proven manual sample preparation techniques of coated steel specimens. coated steel etching grinding low-carbon steel metallic coatings metallographic specimen...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003197
EISBN: 978-1-62708-199-3
... in a batch furnace; the 8620 steel, in a recirculating pit furnace. Pack Carburizing PACK CARBURIZING is a process in which carbon monoxide derived from a solid compound decomposes at the metal surface into nascent carbon and carbon dioxide. The nascent carbon is absorbed into the metal...
Series: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006570
EISBN: 978-1-62708-290-7
... as a polishing technique to smooth rough surfaces of AM metallic components. Batch processing can be used for large number of specimens and the etching rate on certain areas can be controlled by masking. The process requires a specific chemical for each material to be effective, which depends on: Chemical...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001279
EISBN: 978-1-62708-170-2
... are usually supplied with a light application of oil to minimize rusting. This is particularly important in systems where acid etching is not employed during metal preparation. Sag Characteristics Sag is the permanent deformation or creep of steel due to its own weight during enamel firing. The sag...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003213
EISBN: 978-1-62708-199-3
... carburetor parts, valves, switch components, drawn wire Chips, lubricants, and general grime Moderately alkaline, specially inhibited to prevent etching of metal, or neutral synthetic (usually in liquid form) Copper and brass (also silver, gold, tin, lead, and solder) Printed circuit boards, waveguides...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006116
EISBN: 978-1-62708-175-7
... suggestions to promote and encourage the safety of those performing metallographic preparation and analysis. chemical etching drying ferrous powders grinding metallic specimens metallographic analysis metallographic preparation mounting polishing powder metallurgy sample selection sectioning...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001229
EISBN: 978-1-62708-170-2
... of hydrochloric acid with base metal forms ferrous chloride and hydrogen gas: (Eq 6) Fe + 2 HCl = FeCl 2 + H 2 ( g ) Sulfuric Acid Pickling Sulfuric acid produces satisfactory results when used for batch pickling of carbon steel rod and wire (up to 0.60% C) and for continuous...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003217
EISBN: 978-1-62708-199-3
... is often given a prepaint treatment to improve paint adhesion and reduce corrosion. Prepaint treatments include phosphate coatings (see earlier article on this subject) and organic pretreatments known as wash primers or etch primers. The choice of a prepaint treatment depends largely on the substrate metal...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003747
EISBN: 978-1-62708-177-1
... of abrasion is a system of comparatively fine, uniform scratches on the surface of the specimen. Abrasion also produces a plastically deformed surface layer (disturbed metal) of considerable depth. The microstructure of this layer may be recognizably different from the true structure of the specimen...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003174
EISBN: 978-1-62708-199-3
... of 30 to 55 °C (50 to 100 °F) can be expected. Lime alone or with various salts can be used as the desulfurizing agent. The efficiency is lower than that with carbide, but there are fewer environmental problems. Injection and porous plug desulfurizing systems can be either batch type, treating...