Abstract:
The invention relates to a resist system for lithography methods for the production of semiconductor components at wavelengths of 0.1 -150 nm, characterised by at least one polymer or copolymer comprising at least one acid-labile group. The invention also relates to the use of a resist system and a lithography method, whereby it is possible to obtain high sensitivity, especially in the EUV range, and no limitation of the process window occurs by undesirable cross-linking in the resist system, even at high doses of exposure.
Abstract:
The invention concerns an irradiation device for testing objects coated with light-sensitive paint, comprising a EUV radiation source, an optical system for filtering the radiation of the EUV radiation source, a chamber for receiving the object, as well as systems for intersecting the trajectory of the rays on the object. The invention also concerns a method for operating such a device. The invention aims at obtaining as quickly as possible an illumination at least partly simultaneous of several irradiation fields, with different doses, by using an inexpensive laboratory radiation source without resorting to complex optical systems. Therefor, the invention provides a device comprising a simplified and compact optical system, with closable diaphragm apertures located in front of the object to be irradiated and at least one control sensor placed on the trajectory of the rays and enabling the radiation dose to be measured.
Abstract:
A resist capable of imaging by exposure to radiation having a wave length of about 157 nm includes an imagewise convertible film-forming polymer substituted with at least one chemical functional deblocking group cleavable under acid-catalyzed baking conditions to form polar groups imparting solubility of the deblocked polymer in aqueous alkaline developer. At least one photo acid generator compound releases an acid upon exposure to radiation and catalyzes the cleavage of the deblocking groups. An effective amount of at least one radical scavenger compound is used to minimize reactions decreasing the solubility of the deblocked polymer in aqueous alkaline developer. At least one solvent is also provided.
Abstract:
The method involves applying a resist (1) on a substrate and a resist material that forms the resist is provided such that the resist has sensitivity with respect to different lithography techniques. Rough and fine structures with different lithography techniques are mapped in the same resist using a positive lacquer by pre-exposure implemented as flow exposure. A negative lacquer is provided based on epoxy resin. An independent claim is also included for a method for transferring rough and fine structures into a substrate.
Abstract:
A method for smoothing the surface of a structure formed from a first material (10) on a base (14) involves coating with a second material (20), heating to above the glass transition point (Tg) of material (10) and then cooling to below the Tg of material (10). A method (M1) for smoothing the surfaces of a structure of a first material (10) with a predetermined first glass transition point (Tg1) on a supporting base (14) involves (a) at least partly coating the surface of (10) with a second material (20) showing a second glass transition point (Tg2), (b) heating (10) to a predetermined temperature (T1) which is higher than Tg1 and (c) cooling (10) to below Tg1. Independent claims are also included for: (1) a method (M2) for smoothing surfaces as above by (a') at least partly coating (10) with a thin layer of a formable release material (26), (b') applying material (20), (c') heating (10) and (20) to a temperature (T1') which is higher than both Tg1 and Tg2, and (d') cooling (10) and (20) to below Tg1; and (2) a method (M3) for smoothing surfaces as above by (a") coating (10) with (20), (b") heating (20) to a temperature (T1") above Tg2 and (c") cooling to below Tg2.
Abstract:
An extreme ultraviolet lithography (EUV) process makes structures (34) in a resist layer (16) by application to the top and bottom (14) faces of a substrate (10) of an electromagnetic absorbent layer (12) operating in the EUV spectrum. The resist layer (16) is then exposed to EUV radiation, followed by development of the resist layer (16) into an appropriate structure.