Patent ID: 7056197

Claim:
A deposition apparatus including a vacuum-treating chamber, said vacuum-treating chamber comprising: an evaporating section for a depositing material; a tubular barrel having a porous peripheral surface for accommodating a work piece, for treating a surface of the work piece while rotating, said tubular barrel being horizontally arranged about a horizontal rotational axis, the evaporating section being provided in a lower region of the tubular barrel so as to allow deposition material to pass into and out of the tubular barrel through the porous peripheral surface, wherein said tubular barrel has a slide stop for stopping a slide of the accommodated work piece along an inner peripheral surface of said tubular barrel as a result of rotation of said tubular barrel, wherein said tubular barrel has a sectional shape with respect to the rotational axis having at least one corner at an internal single of 30° to 100° , corner being provided as said slide stop, wherein the depositing material consists of at least one of aluminum, zinc, titanium, chromium, magnesium, nickel, an aluminum alloy, a zinc alloy, a titanium alloy, a chromium alloy, a magnesium alloy, a nickel alloy, an aluminum oxide and a titanium nitride, and wherein said work piece is a rare earth metal-based permanent magnet in a plate or bow shape.