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:
Feb. 04, 2014
Filed:
Jan. 17, 2012
Chorng-tyan Lin, Kaohsiung, TW;
Chih-chin Wen, Kaohsiung, TW;
Chun-ming Yang, Kaohsiung, TW;
Jwu-jiun Yang, Kaohsiung, TW;
Chorng-tyan Lin, Kaohsiung, TW;
Chih-chin Wen, Kaohsiung, TW;
Chun-ming Yang, Kaohsiung, TW;
Jwu-jiun Yang, Kaohsiung, TW;
Metal Industries Research & Development Centre, Kaohsiung, TW;
Abstract
An alignment method for assembling substrates without fiducial mark is provided and has steps of: pre-defining at least two partially standard character regions; capturing at least two partially actual images of a first substrate; comparing to obtain at least two partially actual character regions; building an actual coordinate system of the first substrate; comparing the actual coordinate system with a coordinate system of a second substrate to obtain three types of offset values; moving the first substrate to a correct waiting position based on the offset values; ensuring if the first substrate is disposed at the correct waiting position; and stacking the first substrate with the second substrate to finish the alignment and installation. Thus, the alignment method of the present invention can be applied to to-be-installed substrates without any fiducial mark for alignment.