Abstract:
Es ist eine Spiralfeder (4) und ein Verfahren zur Herstellung der Spiralfeder (4) offenbart. Die Spiralfeder (4) besitzt mindestens eine Windung (9), die aus einemmassiven Kern (16) aus einem Siliziummaterial (32) besteht. Der Kern (16) umfasst zwei lange, parallele und geradlinige Seiten (22) und zwei kurze parallele und geradlinige Seiten (24 O , 24 U ). Zumindest die gegenüberliegenden langen Seiten (22) des Kerns (16) sind von einer SiO 2 - Schicht (20) bedeckt. Bei dem Verfahren werden die Windungen (9) aus dem Siliziummaterial geätzt, so dass der Kern (16) der mindestens einen Windung (9) der Spiralfeder (4) ausgeformt wird und zwei lange,parallele und geradlinige Seiten (22) und zwei kurze parallele und geradlinige Seiten (24 O , 24 U ) umfasst.
Abstract:
A method of forming a glass substrate includes providing a glass substrate having alumina, translating a pulsed laser beam on the glass substrate to form one or more pilot holes, contacting the glass substrate with an etching solution, and providing agitation. The etching solution has a pH from about 0 to about 2.0, and an etch rate is less than about 3 µm/min. A glass substrate is disclosed having a first surface and a second surface opposite the first surface in a thickness direction, and at least one hole penetrating the first surface, wherein the at least one hole has been etched by an etching solution. A greatest distance d1 between (1) a first plane that contacts the first surface in regions that do not have the at least one hole or a deviation in a thickness of the substrate surrounding the at least one hole and (2) a surface of the deviation recessed from the first plane is less than or equal to about 0.2 µm.
Abstract:
A processing apparatus includes: a tool in which a processing surface includes a catalyst material including a transition metal that assists hydrolysis of a surface to be processed of an object to be processed that is immersed in water; and a control unit that controls a relative distance between the surface to be processed of the object and the processing surface of the tool with respect to a direction including a surface normal direction of the surface to be processed; wherein the surface to be processed is processed by performing, by the control unit, catalytic reaction control that alternately generates: a first state in which the surface to be processed and the processing surface do not contact; and a second state in which the surface to be processed and the processing surface contact, or approach each other to a distance at which a catalytic reaction becomes effective.
Abstract:
Described herein are methods for improved transfer of graphene from formation substrates to target substrates. In particular, the methods described herein are useful in the transfer of high-quality chemical vapor deposition-grown monolayers of graphene from metal, e.g., copper, formation substrates to ultrathin, flexible glass targets. The improved processes provide graphene materials with less defects in the structure.
Abstract:
The invention provides a chemical-mechanical polishing composition containing abrasive, an ionic polymer of formula (I) wherein X 1 and X 2 , Z 1 and Z 2 , R 1 , R 2 , R 3 and R 4 , and n are as defined herein, a polyhydroxy aromatic compound, a polyvinyl alcohol, and water, wherein the polishing composition has a pH of about 1 to about 4.5. The invention further provides a method of chemically-mechanically polishing a substrate with the inventive chemical-mechanical polishing composition. Typically, the substrate contains silicon oxide, silicon nitride, and/or polysilicon.
Abstract:
A bendable stack assembly that includes a glass element having a composition substantially free of alkali ions, an elastic modulus of about 40 GPa to about 100 GPa, a final thickness from about 20 µm to about 100 µm, a first primary surface substantially in tension upon a bending of the element, and a second primary surface substantially in compression upon the bending, the primary surfaces characterized by a prior material removal to the final thickness from an initial thickness that is at least 20 µm greater than the final thickness. The glass element also includes a protect layer on the first primary surface. In addition, the glass element is characterized by an absence of failure when the element is held during the bending at a bend radius of about 15 mm for at least 60 minutes at about 25C and about 50% relative humidity.