US 7,557,435 B2
Micro-device encapsulation having light and moisture control
Shaoher X. Pan, San Jose, Calif. (US)
Assigned to Spatial Photonics, Inc., Sunnyvale, Calif. (US)
Filed on Apr. 15, 2007, as Appl. No. 11/735,469.
Application 11/735469 is a continuation in part of application No. 11/690776, filed on Mar. 23, 2007.
Prior Publication US 2008/0273233 A1, Nov. 06, 2008
Int. Cl. H01L 23/02 (2006.01); H01L 23/20 (2006.01)
U.S. Cl. 257—678  [257/682] 29 Claims
OG exemplary drawing
 
1. A method for fabricating an encapsulation device for encapsulating a micro device, comprising:
holding a shadow mask over an encapsulation cover having a plurality of openings, wherein the shadow mask includes a base mask portion, one or more openings in the base mask portion, a central mask portion, and one or more connector portions connecting the central mask portion to the base mask portion;
aligning the position of the shadow mask relative to one or more openings in the encapsulation cover;
depositing one or more target materials through the one or more openings in the shadow mask to form a layered structure on the encapsulation cover, wherein the layered structure comprises an opening defined by the central mask portion of the shadow mask; and
forming one or more spacer walls on the layered structure on the encapsulation cover.