MR. JOHN MCCOLLUM
Medical Practice at Broadway St, Portland, OR

License number
Oregon 7727
Category
Medical Practice
Type
Specialist
Address
Address
4259 NE Broadway St, Portland, OR 97213
Phone
(503) 358-3506
National Provider ID: 1083036073
LicenseFiles verified this license of Nov 7, 2017 at the National Plan and Provider Enumeration System.

Personal information

See more information about JOHN MCCOLLUM at radaris.com
Name
Address
Phone
John Mccollum
40600 SE Trout Creek Rd, Corbett, OR 97019
John Mccollum
3610 NE 115Th Ave, Portland, OR 97220
John Mccollum
945 Stillwater Dr, Coos Bay, OR 97420

Professional information

John Mccollum Photo 1

Double Field Oxidation Process

US Patent:
4352236, Oct 5, 1982
Filed:
Jul 24, 1981
Appl. No.:
6/286578
Inventors:
John L. McCollum - Portland OR
Assignee:
Intel Corporation - Santa Clara CA
International Classification:
H01L 2122
US Classification:
29571
Abstract:
A process for growing field oxide particularly for a dynamic memory is described. The process results in thinner field oxides in the storage array (2000-3000 A) and thicker oxides for the peripheral circuits (7000-8000 A). The thinner field oxide regions have smaller bird-beaks, reducing required substrate area. The plate for the storage nodes are coupled to ground potential, thus the thinner field oxides in the storage region provide sufficient isolation.

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