Kenneth E Stumpe

US Patent:

59187921, Jul 6, 1999

Filed:

Apr 4, 1997

Appl. No.:

8/832647

Inventors:

Kenneth Eugene Stumpe - Tucson AZ
William Hernandez - Tucson AZ

Assignee:

RVSI Vanguard, Inc. - Tucson AZ

International Classification:

H01L 2160
B23K 306

US Classification:

228 41

Abstract:

The array of recesses in a ball grid array carrier or (device) are populated with solder balls through a closely spaced tooling plate or stencil which has a like array of apertures. A solder bin is moved along side rails over the stencil allowing solder balls to fill the apertures in the stencil settling on the corresponding recesses and held there by adhesive. Excess solder balls are moved along by the movement of the bin. The bin is held in close contact with the stencil to avoid misplacement of the balls by bowing the stencil and by forcing it into a plane coplanar with the bottom of the bin. Alternative techniques are magnetic or vacuum areas of the bottom of the bin to ensure complete contact with the stencil.

US Patent:

61884855, Feb 13, 2001

Filed:

Apr 14, 1999

Appl. No.:

9/291521

Inventors:

Kenneth Stumpe - Tucson AZ

Assignee:

Veeco Corporation - Tucson AZ

International Classification:

G01B 902
G01B 1100

US Classification:

356511

Abstract:

A substantially vertical sample stage for interferometric testing of computer-drive disks is positioned along an inclined trackway. The stage includes three pressure tips that provide a fixed, aligned plane against which the back surface of the disk being tested is positioned in optical alignment with the reference surface of the instrument. The degree of protrusion of two of the pressure tips can be adjusted to set the proper tip/tilt of the disk. Each disk being tested is allowed to roll down the trackway by gravity to a rubber stop in front of the stage. The trackway is also tilted slightly to cause the disk to roll on edge and lean against the sidewall of the trackway. After the disk is stopped in front of the stage, a retractable finger engages the forward edge of the disk and produces a slight backward motion to release the disk from the rubber stop and align it with the stage. An air-stream burst is then applied to the back surface of the disk to create a suction that attracts the disk to the three pressure tips while supported by two edge points in contact with the retractable finger and the inclined trackway. Interferometric testing is carried out and, finally, the finger is retracted and the disk allowed to roll down the inclined trackway away from the stage while another disk is rolled into position for testing.

US Patent:

20190258045, Aug 22, 2019

Filed:

Apr 29, 2019

Appl. No.:

16/398123

Inventors:

- Tucson AZ, US
Charles Nathan Hassen - Tucson AZ, US
Michael Mensah - Tucson AZ, US
Logan Rivas - Tucson AZ, US
DuWayne Dennis Snyder - Eloy AZ, US
Kenneth Eugene Stumpe - Tucson AZ, US
Michael Thompson - Tucson AZ, US

International Classification:

G02B 21/34
G01N 35/00

Abstract:

An apparatus and method for selecting and dispensing coverglasses over specimens on slides for the purpose of viewing specimens through a microscope. The selecting device contains suctioning mechanisms for picking up a coverglass from a stack of coverglasses. It also contains the ability to shape the coverglass to assist in separating and laying down of the coverglasses with a reduction in the creation of bubbles in the fluid.

US Patent:

20170115476, Apr 27, 2017

Filed:

Jan 6, 2017

Appl. No.:

15/399948

Inventors:

- Tucson AZ, US
Charles Nathan Hassen - Tucson AZ, US
Michael Mensah - Tucson AZ, US
Logan Rivas - Tucson AZ, US
DuWayne Dennis Snyder - Eloy AZ, US
Kenneth Eugene Stumpe - Tucson AZ, US
Michael Thompson - Tucson AZ, US

International Classification:

G02B 21/34
G01N 35/00

Abstract:

An apparatus and method for selecting and dispensing coverglasses over specimens on slides for the purpose of viewing specimens through a microscope. The selecting device contains suctioning mechanisms for picking up a coverglass from a stack of coverglasses. It also contains the ability to shape the coverglass to assist in separating and laying down of the coverglasses with a reduction in the creation of bubbles in the fluid.