Apparatus for mounting a flat package type IC

Electricity: motive power systems – Positional servo systems – With particular 'error-detecting' means

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

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.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

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.

Rate now

     

Profile ID: LFUS-PAI-O-2387889

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.