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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 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...
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
... spheres 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 Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006360
EISBN: 978-1-62708-192-4
... friction, improve lubrication efficacy, or minimize surface wear under severe contact conditions. The earliest functional thin-film tribological hard coatings for tool and component surfaces tended to be ceramic metal nitrides, such as titanium nitride. However, carbon-base tribological coatings began...
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
... , Int. Met. Rev. , Vol 29 , 1984 , p 25 – 42 10.1179/imtr.1984.29.1.25 20. Kozeschnik E. , Pletenev V. , Zolotorevsky N. , and Buchmayr B. , Aluminum Nitride Precipitation and Texture Development in Batch-Annealed Bake-Hardening Steel , Metall. Mater. Trans. A , Vol...
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
... Etchants and etching times for zinc and zinc die-casting alloys Specimen metal (a) Etchant (from Table 1 ) Time, s, for examination at 250× 1000× Cast or rolled zinc 1 5 1 Die cast alloy 3 (Z33520), 5 (Z35531), or 7 (Z33523) 2 1 1 Zinc-coated steel 7 1–30 1–30...
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
... steel with various morphologies of cementite. (a) Massive carbides. (b) Medium-sized carbides. (c) Small, dispersed carbides. 4% picral etch. 1000× Fig. 7 Cementite (arrows) at ferrite grain boundaries in a batch-annealed 0.04% C steel. Marshall's reagent. 500× Fig. 8 Microstructure...
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 Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003174
EISBN: 978-1-62708-199-3
.... Gating systems must be carefully designed to fill the mold rapidly but with as little turbulence as possible to avoid reoxidation of the molten metal and inclusion formation. Because of steel's high melting temperature, radiation from the metal that is filling the mold can heat the cope surface...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003197
EISBN: 978-1-62708-199-3
... temperature (a) , 845–900 °C (1550–1650 °F) Deep case, high temperature (b) , 900–955 °C (1650–1750 °F) Sodium cyanide 10–23 6–16 Barium chloride … 30–55 (c) Salts of other alkaline earth metals (d) 0–10 0–10 Potassium chloride 0–25 0–20 Sodium chloride 20–40 0–20 Sodium...
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
... purposes, such as etching before galvanizing or tinning. Nitric-hydrofluoric acid mixtures are used to pickle stainless steel. Hydrofluoric acid is sometimes used when pickling castings to remove sand. Mixtures of hydrochloric and sulfuric acids have been used in batch pickling, often by adding rock...
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
... (Citric Acid Spot Test)” C 283 “Resistance of Porcelain Enameled Utensils to Boiling Acid” C 285 “Standard Test Methods for Sieve Analysis of Wet Milled and Dry Milled Porcelain Enamel” C 286 “Definitions of Terms Relating to Porcelain Enamel and Ceramic Metal Systems” C 313 “Standard Test...
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
... 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 etching. Many mechanical properties are influenced by grain size...
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
... Carving or decorative etching of glass, porcelain, wood, or natural stone such as granite or marble All pigmented drawing lubricants are difficult to remove from metal parts. Consequently, many plants review all aspects of press forming operations to avoid the use of pigmented compounds...
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: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005799
EISBN: 978-1-62708-165-8
... of the steel, and some carbides may form if proper diffusion techniques are not used. (In earlier editions of the Metals Handbook , the carbon gradient produced by maintaining saturated austenite at the surface of the steel is referred to as the normal carbon gradient.) This mode of gas carburizing is still...
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 Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003217
EISBN: 978-1-62708-199-3
... primers or etch primers. The choice of a prepaint treatment depends largely on the substrate metal to be painted. Care should be taken to choose the appropriate pretreatment for the particular substrate being coated to ensure corrosion protection and paint adherence. Spraying is adaptable to either...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006440
EISBN: 978-1-62708-190-0
..., and similar discontinuities. It is extensively used for the inspection of wrought and cast products of both ferrous and nonferrous metals, powder metallurgy parts, ceramics, plastics, and glass objects. The liquid penetrant method does not depend on ferromagnetism (as does, for example, magnetic particle...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003245
EISBN: 978-1-62708-199-3
... alloys and different product forms of steels. etching ferrous metals grinding metallurgical structure microstructural analysis mounting polishing Technique for Carbon and Alloy Steels THE PREPARATION OF SPECIMENS of carbon and alloy steels can require special consideration...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001304
EISBN: 978-1-62708-170-2
..., oxides, etc. Effect on base metal None None when properly inhibited, but caustic alkali will attack aluminum and zinc. None when properly inhibited Very slight surface attack when properly controlled Sometimes slight etch Time required 1 to 15 min 1 to 30 min 1 2 to 3 min 1...