continued from part 1 - Controller General of Patents, Designs, and ...

(12) PATENT APPLICATION PUBLICATION (21) Application No.6275/DELNP/2008 A
(19) INDIA
(22) Date of filing of Application :18/07/2008 (43) Publication Date : 24/10/2008
(54) Title of the invention : "APPARATUS AND METHOD FOR CLEANING OF OBJECTS, IN PARTICULAR OF THIN DISCS"
(51) International classification :H01L 21/00 (71)Name of Applicant :
(31) Priority Document No :10 2006 059 810.5 1)RENA SONDERMASCHINEN GMBH
(32) Priority Date :15/12/2006
Address of Applicant :OB DER ECK 5, 78148
(33) Name of priority country :Germany
GUTENBACH, GERMANY.
(86) International Application No :PCT/EP2007/010735 (72)Name of Inventor :
Filing Date
:10/12/2007
1)NORBERT BURGER
(87) International Publication No :WO 2008/071365
(61) Patent of Addition to Application
Number
Filing Date
:NA
:NA
(62) Divisional to Application Number :NA
Filing Date
:NA
(57) Abstract :
The invention relates to an apparatus for the cleaning of thin wafers (6), wherein the wafers (6) are fixed with one side to a carrier
device (2), and wherein an interspace (7) is formed between two adjacent substrates, wherein the apparatus substantially consists of a
shower device (16) by which fluid is injected into the respective interspaces (7), a basin (14) that can be filled with fluid and that is
dimensioned such that it houses the carrier device (2), and a swivel device (15) for rotating the carrier device (2). According to the
invention, optionally either the shower device (16) can be moved in relation to the immobile carrier device (2), or the carrier device
(2) can be moved in relation to the immobile shower device (16), or both the carrier device (2) as well as the shower device (16) can
be moved in relation to each other. The method stands out by the fact that in a preferred cleaning process, a shower with warm fluid
takes place at first with the carrier device (2) being moved within the basin, followed by an ultrasonic cleaning in cold fluid and
another shower with warm fluid.
No. of Pages : 35 No. of Claims : 19
The Patent Office Journal 24/10/2008 25736