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.
Patent No.:
Date of Patent:
Oct. 24, 1995
Filed:
Oct. 17, 1994
Applicant:
Inventors:
Nang T Tran, Lake Elmo, MN (US);
Kenneth R Paulson, Oakdale, MN (US);
Bruce A Sventek, St. Paul, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, Saint Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; B05D / ;
U.S. Cl.
CPC ...
437-2 ; 437-4 ; 427 68 ; 427 70 ; 4271262 ; 427257 ; 427267 ; 427294 ; 4273761 ;
Abstract
The growth of a phosphor layer deposited on a patterned substrate containing a multiplicity of recessed ridges of triangular cross section can be controlled by tailoring the geometry of the recessed ridge structures. During the deposition process, little or no phosphor deposition occurs on the recessed ridge structures, and cracks are formed which separate the otherwise uniformly growing phosphor which is present in other regions of the patterned substrate where more substantial phosphor deposition occurs.