Alexander S Gotman

US Patent:

7098072, Aug 29, 2006

Filed:

Mar 1, 2002

Appl. No.:

10/501431

Inventors:

Stanislav A. Garyainov - Moscow, RU
Alexander S. Gotman - Santa Monica CA, US
Vladimir V. Novikov - Saint Petersburg, RU

Assignee:

AGNG, LLC - Santa Monica CA

International Classification:

H01L 21/30
H01L 21/44
H01L 21/46
H01L 21/48
H01L 21/50

US Classification:

438107, 438455

Abstract:

A method for assembling semiconductor packages () includes forming corresponding pairs of conductive pads () on respective surfaces of a die () and an interconnective substrate (). Each pad in each pair includes an upper portion comprising at least one component of an electrically conductive eutectic alloy. Sharp, upstanding peaks () are formed on at least one of the pads in each pair. The die and substrate are forcefully abutted and the pads heated until the sharp peaks penetrate through oxide films () on the respective opposing pads in each pair and contact the upper surface of the other pad therein, thereby initiating pad fusion. The pads are then cooled to solidify the molten portions thereof into an electrically conductive joint between each corresponding pair of pads and a hermetic seal around the periphery of the package.

US Patent:

55406297, Jul 30, 1996

Filed:

Sep 29, 1994

Appl. No.:

8/315241

Inventors:

Alexander S. Gotman - Santa Monica CA

International Classification:

F16H 4806
B25B 1700

US Classification:

475248

Abstract:

A reversible hand operated rotary power tool contains an internal mechanism for reducing the reaction torque that would otherwise be exhibited directly upon the housing, and hence imposed upon the hand of the operator. The mechanism is bidirectional, and reduces reaction torque to the same extent whether the tool is being operated in a forward direction or in a reverse direction. The mechanism includes a planetary differential mechanism having an input driven from a powered rotor, one separate output that is drivingly coupled to an output shaft, and another separate output that is drivingly coupled to an offset shaft that is laterally offset from the axis of the powered rotor. A lever system is employed to inhibit rotation of the offset shaft in either direction relative to the housing and thereby reduce reaction torque exhibited on the housing.

US Patent:

42965420, Oct 27, 1981

Filed:

Jul 11, 1980

Appl. No.:

6/167667

Inventors:

Alexander Gotman - Santa Monica CA

Assignee:

Presco, Inc. - Beverly Hills CA

International Classification:

H01L 2166

US Classification:

29574

Abstract:

In a manufacturing operation, a stretched diaphragm is used to support a quantity of small parts which are individually secured to the diaphragm in predetermined spaced relation. An individual part is elevated relative to the remainder of the array, for purpose of inspection or test, by displacing and even further stretching the associated portion of the diaphragm; then it is permitted to return to its original place in the array. When the parts are to be incorporated into manufactured assemblies each selected part is again elevated by displacing and stretching the associated portion of the diaphragm. The method is applied to the manufacture of microminiature electric circuits in which a flat wafer is first formed, and the wafer is then cut into a number of chips which must be individually tested and then they are incorporated into circuit assemblies.

US Patent:

44101686, Oct 18, 1983

Filed:

Aug 7, 1981

Appl. No.:

6/290890

Inventors:

Alexander Gotman - Santa Monica CA

Assignee:

Asta, Ltd. - Irvine CA

International Classification:

B25B 1100

US Classification:

269 21

Abstract:

In a manufacturing operation, a stretched diaphragm is used to support a quantity of small parts which are individually secured to the diaphragm in predetermined spaced relation. An individual part is elevated relative to the remainder of the array, for purpose of inspection or test, by displacing and even further stretching the associated portion of the diaphragm; then it is permitted to return to its original place in the array. When the parts are to be incorporated into manufactured assemblies each selected part is again elevated by displacing and stretching the associated portion of the diaphragm. The method is applied to the manufacture of microminiature electric circuits in which a flat wafer is first formed, and the wafer is then cut into a number of chips which must be individually tested and then they are incorporated into circuit assemblies. Apparatus for carrying out the method includes a support member having a flat upper surface, an annular opening in the flat surface forming a suction ring, means for applying vacuum to the suction ring, a central hole in the flat surface within the suction ring, and a pusher member that can be selectively raised from within the central hole. The apparatus also includes means for creating a vacuum at the periphery of the central hole, and internal controls for controlling the sequence of operation of the two vacuum means and the pusher member.

US Patent:

48742759, Oct 17, 1989

Filed:

Jun 22, 1987

Appl. No.:

7/064466

Inventors:

Alexander S. Gotman - Los Angeles CA

International Classification:

F16B 3100
F16B 3902

US Classification:

411 5

Abstract:

A three-piece fastener includes a bolt with a shank having a concentric opening in its threaded end, a nut adapted to fit over the threaded end of the bolt, and a wedge member which is insertable into the end opening of the bolt for expanding and thereby securing it. The threaded end of the bolt is axially slotted to facilitate its expansion. The outer diameter of the wedge member is smaller than the outer diameter of the threaded end of the bolt. When the bolt is to be inserted into an opening of a structure in order to accomplish a fastening action, the wedge member is first loosely inserted into the end opening of the bolt. Then when the bolt and wedge are passed through the opening, the nut is applied to the end of the bolt and is tightened. Thereafter, the wedge is tightened in order to expand the end of the bolt. The end opening of the bolt has interior threads, and is threadedly engaged by the wedge member, but in an opposite rotational sense to that in which the nut is applied to the bolt.

US Patent:

49914731, Feb 12, 1991

Filed:

Jun 21, 1989

Appl. No.:

7/369329

Inventors:

Alexander Gotman - Redondo Beach CA

International Classification:

B25B 23157
B25B 2100

US Classification:

81475

Abstract:

A driver with automatic speed and torque switching including two different drive trains which operate in parallel and are driven at the same time by a motor. One drive train provides a high-speed output while the other provides a low-speed output. A single drive head for transmitting torque to the nut is normally coupled to the high-speed output, and not to the low-speed output. The machine operates initially at the high speed for the "free rotation" of the nut. When the nut contacts the surface of the structural body, the drive coupling to the high-speed output is disabled, and the low-speed output (which formerly was not coupled to the drive head) is not at the same time coupled to the drive head. The nut is then driven much more slowly but with a higher driving torque. Within the low-speed drive train there is included a friction clutch, and adjustement means for adjusting the level of torque at which it will slip.

US Patent:

53542460, Oct 11, 1994

Filed:

Mar 1, 1993

Appl. No.:

8/024432

Inventors:

Alexander S. Gotman - Santa Monica CA

International Classification:

F16H 142

US Classification:

475248

Abstract:

A powered hand-held rotary tool adapted for preventing an externally manifested reaction torque upon the hand of an operator consists of a housing, a rotor adapted to be driven for rotation relative to the housing, and a planetary differential mechanism having a sun gear coaxial with and driven from the rotor, planetary gears, and a ring gear. The ring gear is rotatable relative to the housing. A first output gear is coaxial with the sun gear and rotatably driven by the planetary gears. An additional output gearing is rotatably supported from the housing on an axis that is laterally offset from the axis of the rotor, and is drivingly engaged by the ring gear. Rotation of the additional gearing in one direction relative to the housing is inhibited.

US Patent:

46995285, Oct 13, 1987

Filed:

Apr 21, 1986

Appl. No.:

6/854315

Inventors:

Alexander Gotman - Los Angeles CA

Assignee:

Zephyr Manufacturing Company - Inglewood CA

International Classification:

F16C 2704
F16C 2706
F16C 4300
F16C 3364

US Classification:

384536

Abstract:

A rotary assembly includes a shaft, a housing, and a bearing interposed between shaft and housing to provide radial support while also permitting relative rotation. The invention permits optimum operation of the bearing, by permitting the bearing to be self-positioned even though slightly out of alignment with either the shaft or the housing, or both. This is accomplished by providing a radial space between the bearing and the shaft or housing; placing a generally ring-shaped compensating member in circumferential engagement with the associated cylindrical surface of the shaft or housing; providing a longitudinal taper on the outer surface of the associated end of the bearing; and then placing the tapered surface of the bearing in overlapping engagement with the compensating member and resiliently urging the bearing and the compensating member axially together so as to provide a firm support both radially and axially for the bearing. In the complete rotary assembly a radial space is preferably provided adjacent both the shaft and the housing, and separate inner and outer compensating members are utilized, one for the shaft and one for the housing.