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1. EP1862287 - PROCESS FOR PRODUCING MOLDED PART AND MOLDING APPARATUS

Office European Patent Office
Application Number 05727032
Application Date 22.03.2005
Publication Number 1862287
Publication Date 05.12.2007
Publication Kind A4
IPC
B29C 39/02
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
39Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
02for making articles of definite length, i.e. discrete articles
B29C 39/22
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
39Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
22Component parts, details or accessories; Auxiliary operations
CPC
B29C 35/0894
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
35Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
02Heating or curing, e.g. crosslinking or vulcanizing ; during moulding, e.g. in a mould
08by wave energy or particle radiation
0888using transparant moulds
0894provided with masks or diaphragms
B29C 2035/0827
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
35Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
02Heating or curing, e.g. crosslinking or vulcanizing ; during moulding, e.g. in a mould
08by wave energy or particle radiation
0805using electromagnetic radiation
0827using UV radiation
B29C 2791/001
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
2791Shaping characteristics in general
001Shaping in several steps
B82Y 10/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
10Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
B82Y 40/00
BPERFORMING OPERATIONS; TRANSPORTING
82NANOTECHNOLOGY
YSPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
40Manufacture or treatment of nanostructures
G03F 7/0002
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
FPHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR;
7Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
0002Lithographic processes using patterning methods other than those involving the exposure to radiation, e.g. by stamping
Applicants FUJITSU LTD
Inventors IIDA SUSUMU
MATSUSHITA NAOHISA
FURUI TOSHIKAZU
Priority Data JP2005005139 null
WO2005JP05139 null
2005005139 22.03.2005 JP
Title
(DE) VERFAHREN ZUR HERSTELLUNG VON FORMTEILEN UND FORMVORRICHTUNG
(EN) PROCESS FOR PRODUCING MOLDED PART AND MOLDING APPARATUS
(FR) PROCEDE DE FABRICATION D UNE PIECE MOULEE ET APPAREIL DE MOULAGE
Abstract
(EN)
Light (27) is irradiated to a light curing resin material (41) within a mold (24, 25). The light (27) penetrates through the light curing resin material (41) at a position off a mask (35). The light curing resin material (41) gets cured at the position off the mask (35). The mold (24, 25) in this manner serves to form the contour of a molded product. On the other hand, the mask (35) partly blocks the light (27). An uncured section (42) is established in the light curing resin material (41) behind the mask (35). When the light curing resin material (41) is removed from the uncured section (42), the uncured section provides a hole, for example. If the mask (35) is finely formed, it is possible to form a fine hole in an easier manner in a shorter time. It is possible to realize the mass production of a molded product having a fine hole.

(FR)
Selon l’invention, une matière à base de résine photodurcissable (41) est irradiée de lumière (27) dans un moule (24, 25). La lumière (27) traverse la matière à base de résine photodurcissable (41) en passant autour de masques (35). La matière à base de résine photodurcissable (41) durcit autour des masques (35), ce qui permet d’établir la forme extérieure d’une partie moulée en fonction du moule (24, 25). Les masques (35) bloquent également partiellement la lumière (27). La matière à base de résine photodurcissable (41) présente donc des régions non durcies (42) derrière les masques (35). Le retrait de la matière à base de résine photodurcissable non durcie (41) subsistant dans les régions non durcies (42) produit, par exemple, des trous. Lorsque les masques (35) sont fins, il est possible de former rapidement des trous fins. L’invention permet donc la fabrication en série d’une pièce moulée dotée de trous fins.