Electricity: motive power systems – Positional servo systems – With particular 'error-detecting' means
Patent
1989-12-19
1991-11-26
Ip, Paul
Electricity: motive power systems
Positional servo systems
With particular 'error-detecting' means
318377, 356400, 250561, G05B 106
Patent
active
050685880
ABSTRACT:
An apparatus for mounting a flat package type IC on a printed circuit board is disclosed. The apparatus includes: a robot hand for holding the IC; cameras each for taking an image of a part of the IC taking an image of a part of the board, which cameras are fixed to the hand and arranged symmetrically with respect to the rotation axis of the hand; a first processor for obtaining linear deviation and rotational deviation of leads from the images of the IC, and for obtaining linear deviations and rotational deviation of lands from the images of the board; a second processor for obtaining a linear difference between the linear deviations of the IC and board, and for obtaining a rotational difference between the rotational deviations of the IC and board; and a driver for adjusting the position of the IC, by linearly moving the hand by the linear difference, and by rotating the hand by the rotational difference, thereby correctly positioning the leads on the corresponding lands.
REFERENCES:
patent: 4146924 (1979-03-01), Birk et al.
patent: 4187051 (1980-02-01), Kirsch et al.
patent: 4301470 (1981-11-01), Pagany
patent: 4315201 (1982-02-01), Suzuki et al.
patent: 4333044 (1982-06-01), Blitchington
patent: 4342090 (1982-07-01), Caccoma et al.
patent: 4412121 (1983-10-01), Kremers et al.
patent: 4425537 (1984-01-01), Philips et al.
patent: 4442388 (1984-04-01), Philips
patent: 4531060 (1985-07-01), Suwa et al.
patent: 4613942 (1986-09-01), Chen
patent: 4622502 (1986-11-01), Maruo et al.
patent: 4628464 (1986-12-01), McConnell
patent: 4664524 (1987-05-01), Hattori et al.
patent: 4687980 (1987-08-01), Philips et al.
patent: 4720635 (1988-01-01), Uga
patent: 4845373 (1989-07-01), Jamieson et al.
patent: 4861162 (1989-08-01), Ina
patent: 4870452 (1989-09-01), Tanimoto et al.
patent: 4871955 (1989-10-01), Berger
Shima, Yoshihiro et al., "Automatic Position Detection Method for Mounting IC Parts on High-Density Printed Circuit Boards", Systems and Computers in Japan, vol. 17, No. 10, 1986, pp. 66-77.
Anezaki Takashi
Kubota Hitoshi
Yamane Manabu
Ip Paul
Matsushita Electric - Industrial Co., Ltd.
LandOfFree
Apparatus for mounting a flat package type IC does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for mounting a flat package type IC, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for mounting a flat package type IC will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2387889