Abstract: The invention relates to the use of a composition comprising a C1 to C6 alkanol and a carboxylic acid ester of formula (I) wherein R1 is selected from a C1 to C6 alkyl, which may be unsubstituted or substituted by OH or F, and —X21—[O—X22]n—H; R2 is selected from a C1 to C6 alkyl, which may be unsubstituted or substituted by OH or F, and —X21—[O—X22]n—H; X21, X22 are independently selected from C1 to C6 alkandiyl, which may be unsubstituted or substituted by OH or F; n is an integer from 1 to 5. wherein, the C1 to C6 alkanol and the carboxylic acid ester are selected so as to form an azeotropic mixture and are present in an amount from 20% by weight below to 20% by weight above such azeotropic mixture.

Abstract: Described herein is a composition for selectively etching a layer including a silicon germanium alloy (SiGe) in the presence of a silicon-containing layer, particularly a layer comprising a-Si, SiOx, SiON, SiN, or a combination thereof, the composition including: (a) an oxidizing agent, (b) an acid selected from an inorganic acid and an organic acid, (c) an etchant including a source of fluoride ions, (d) a polyvinylpyrrolidone (PVP), and (e) water.

Abstract: The invention relates to a composition for selectively etching a layer comprising a silicon germanium alloy (SiGe) in the presence of a silicon-containing layer, particularly a layer comprising a-Si, SiOx, SiON, SiN, or a combination thereof, the composition comprising: (a) an oxidizing agent, (b) an acid selected from an inorganic acid and an organic acid, 10 (c) an etchant comprising a source of fluoride ions, (d) a polyvinylpyrrolidone (PVP), and (e) water.

Abstract: A detachable lift gate hinge cover assembly includes a bracket fixed to a vehicle roof, the bracket including an attachment member having an integrally connected coupling portion. A plate assembly includes a panel having a retention member integrally connected to the panel. The plate assembly when rotated in a first rotation direction aligns the retention member with a clearance opening of the coupling portion allowing insertion of the retention member through the clearance opening to releasably engage a hook shaped end of the retention member with the coupling portion. The plate assembly when positioned in an installed position within a roof hinge pocket of the roof at least partially covers a lift gate hinge attachment area. The plate assembly when rotated in a second rotation direction opposite to the first rotation direction releases the hook shaped end from the coupling portion to release the plate assembly from the installed position.

Abstract: A detachable lift gate hinge cover assembly includes a bracket fixed to a vehicle roof, the bracket including an attachment member having an integrally connected coupling portion. A plate assembly includes a panel having a retention member integrally connected to the panel. The plate assembly when rotated in a first rotation direction aligns the retention member with a clearance opening of the coupling portion allowing insertion of the retention member through the clearance opening to releasably engage a hook shaped end of the retention member with the coupling portion. The plate assembly when positioned in an installed position within a roof hinge pocket of the roof at least partially covers a lift gate hinge attachment area. The plate assembly when rotated in a second rotation direction opposite to the first rotation direction releases the hook shaped end from the coupling portion to release the plate assembly from the installed position.