Allen D Arnold

US Patent:

48238694, Apr 25, 1989

Filed:

Mar 2, 1988

Appl. No.:

7/166740

Inventors:

Allen J. Arnold - Lagrangeville NY
Kerry L. Sutton - Wappingers Falls NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

F28F 700

US Classification:

165185

Abstract:

An improved heat sink is disclosed in which a plurality of heat conducting fins extends form a base of heat conductive material. The top surface of the base is peaked to reduce the dead space that would otherwise occur during vertical impingement air flow. In the preferred embodiment, the top surface is pyramidal in shape with the peak at the center. In other embodiments, the top surface can be convex or concave and have the peak located off center. Also, webs of material can be left at the bottom of the cooling fins to provide channels for improved air flow.

US Patent:

50492012, Sep 17, 1991

Filed:

Jun 22, 1989

Appl. No.:

7/370355

Inventors:

Shirley Cheng - Hopewell Junction NY
Constance J. Araps - Wappingers Falls NY
Allen J. Arnold - LaGrangeville NY
Jeffrey T. Coffin - Wappingers Falls NY
Luu T. Nguyen - Peekskill NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

B08B 308

US Classification:

134 42

Abstract:

Disclosed is a method of inhibiting corrosion on an electronic component. The method includes the steps of obtaining an electronic component and then cleaning the electronic component in a solution consisting of a complexing agent and a solvent in which the complexing agent is soluble. The complexing agent is a crown compound.

US Patent:

48314943, May 16, 1989

Filed:

Jun 27, 1988

Appl. No.:

7/212361

Inventors:

Allen J. Arnold - LaGrangeville NY
Michael E. Bariether - LaGrangeville NY
Hormazdyar M. Dalal - Wappingers Falls NY
Robert A. Miller - Walden NY
Frank A. Montegari - Wappingers Falls NY
James M. Oberschmidt - Stanfordville NY
David T. Shen - Poughkeepsie NY

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

H01G 114
H01G 438
H01G 410
H05K 702

US Classification:

361306

Abstract:

Disclosed is a multilayer capacitor consisting of a plurality of laminae with each of the laminae including a conductive plate portion and a non-conductive sheet portion. The conductive plate portion has at least one tab projecting to at least one edge of the conductive plate portion with the maximum number of tabs per conductive plate portion being limited to avoid excessive lateral congestion. The laminae are divided into different groups with the laminae from each group having the same number and location of tabs and with the laminae from different groups differing by at least the location of the tabs. The laminae are interleaved so that: (a) a lamina from one group alternates with a lamina from a different group, (b) the conductive plate portion of each lamina is in contact with the non-conductive sheet portion of each adjacent lamina, (c) the tabs are at a common edge of each lamina so that the tabs of the interleaved laminae form rows of tabs, and (d) the tabs from adjacent laminae are not in registry with each other. The capacitor finally includes islands of metallurgy joining selected groups of tabs in each row such that each of the islands covers a portion of each row of tabs.