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:
Jun. 02, 2015
Filed:
Dec. 27, 2013
Ibiden Co., Ltd., Ogaki-shi, JP;
Yukinobu Mikado, Ogaki, JP;
Yuki Tanaka, Ogaki, JP;
IBIDEN CO., LTD., Ogaki-shi, JP;
Abstract
A method for forming cavity in substrate includes setting start position on closed loop line having circumference L for substrate, consecutively irradiating laser from laser device upon board for the substrate such that holes are formed, and moving the device in loop from the start position along the line such that penetrating hole is formed through the board. The start position of first loop is set as base position, the moving includes shifting the start position by distance d after each loop and controlling such that the moving satisfies p=Σd, m≅L/p and M=m×n, where i=1 to n, n represents number of loops, p represents pitch of the holes, m represents number of the holes in loop, Σdis distance from the base position for the start position after i-th loop, and M is number of the holes by the loops.