Romolo
Romolo Bactasa, Singapore SG
Patent application number | Description | Published |
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20090166826 | LEAD FRAME DIE ATTACH PADDLES WITH SLOPED WALLS AND BACKSIDE GROOVES SUITABLE FOR LEADLESS PACKAGES - Disclosed are die paddle structures for leadframes and methods of attaching die to the die paddles. An exemplary die paddle comprises a sloped wall disposed around an attachment area for a die, where the sloped wall has an obtuse angle of inclination with respect to the attachment area. In one exemplary die-attachment process, solder material is disposed on the attachment area and/or the metalized back surface of a die, the die is placed over the attachment area and substantially within the opening defined by the sloped wall, and the solder is reflowed while the die is allowed to float over the reflowed solder free of external forces from a die-placement tool and to align itself to the sloped wall. Die paddles and attachment methods of the invention reduce the alignment tolerances needed to place the die. | 07-02-2009 |
Romolo Bactasa, Serangoon SG
Patent application number | Description | Published |
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20140077667 | WAFER HANDLING STATION INCLUDING CASSETTE MEMBERS WITH LATERAL WAFER CONFINING BRACKETS AND ASSOCIATED METHODS - A wafer handling station includes a housing defining a chamber, and a wafer cassette assembly positionable in the chamber. The wafer cassette assembly includes a vertical support, and cassette members carried by the vertical support in spaced relation. Each cassette member includes a base coupled to the vertical support, wafer contact pads on an upper surface of the base and configured to support a wafer thereon, and a pair of wafer brackets carried by the base and configured to engage respective edges of the wafer to laterally confine the wafer. | 03-20-2014 |
Romolo Ranocchia, Sao Paulo - Sp BR
Patent application number | Description | Published |
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20130228297 | PROCESS FOR PRODUCING MODIFIED CELLULOSE PULPS, CELLULOSE PULP THUS OBTAINED AND USE OF BIOPOLYMER FOR PRODUCING CELLULOSE PULPS - The present invention relates to an improved process for producing chemical cellulose pulp wherein biopolymers are added immediately before, during or after a bleaching step, depending on pulp characteristics and on process conditions used. The biopolymers according to the present invention are starch by an etherification reaction. This treatment results in a differentiated pulp having improved physical, chemical and mechanical properties when compared with cellulose pulps obtained by traditional processes. The use of said biopolymer alters the relations between important pulp properties rendering their application in papermaking process advantageous. This differentiation increases the possibilities of use and also of new applications, including for the substitution of pulps produced from other cellulose sources. Thus, the present invention also relates to a process for the preparation of paper, such as printing, writing, decorative, special or tissue-type papers, through the use of the cellulose pulps modified by the above process. | 09-05-2013 |