Title:
DETECTING METHOD FOR RESIDUAL AMOUNT OF METAL BALL
Document Type and Number:
Japanese Patent JP3875367
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To make it possible to detect a residual amount of metal balls in a ball storing case.
SOLUTION: In this method, a metal ball 3 is stored in a ball storing case 1, and the residual amount of the metal balls 3 that are jumping in the ball storing case 1 is detected. Under low luminous energy condition, in which the luminous energy in the ball storing case 1 is reduced with respect to the outside, a ball jumping region 10 is observed. Then, the residual amount is detected by the color intensity at the ball jumping region 10.
Inventors:
Masayuki Kitajima
Shigekazu Takei
Yutaka Noda
Shigekazu Takei
Yutaka Noda
Application Number:
JP25243697A
Publication Date:
January 31, 2007
Filing Date:
September 17, 1997
Export Citation:
Assignee:
富士通株式会社
International Classes:
H01L21/60; H05K3/34; (IPC1-7): H01L21/60; H05K3/34
Domestic Patent References:
| JP5143810A | ||||
| JP9027677A | ||||
| JP10284543A |
Attorney, Agent or Firm:
Masao Yamakawa