The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Sep. 26, 2000

Filed:

May. 15, 1998
Applicant:
Inventor:

Kumar Shiralagi, Chandler, AZ (US);

Assignee:

Motorola, Inc., Schaumburg, IL, US;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
438 39 ; 438506 ; 438505 ; 438478 ; 438487 ; 257134 ; 257153 ;
Abstract

A method of depositing a material to a semiconductor device having a first mesa structure, a second mesa structure and a valley. Material is deposited from a first angular direction sufficient to substantially mask the valley with a first of the mesa structures and from a second angular direction sufficient to substantially mask the valley with the second mesa structure to form a first lip and a second lip on the respective first and second mesa structures overlying the valley and defining a space therebetween less than the width of the valley. Material is then deposited to the device from a third direction in substantial opposition to the device, the space operating to guide material deposition to the valley to provide discrete material deposition in the valley to form a discrete feature in the valley.


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