Method for producing a base plate for a semiconductor module
AssigneeInfineon Technologies AG
InventorXifang Liao
Life of this patent
Estimating the term…
Abstract
A method includes: attaching a base plate to a lateral side of a rotatable disc; directing an outlet of a spray gun towards an edge of a surface of the base plate facing away from the disc; attaching a spacer mask to the disc and/or to the base plate such that the mask is arranged adjacent to the surface of the base plate and between the base plate and the spray gun, the mask including openings with a size and shape corresponding to a size and shape of a spacer to be formed on the base plate; rotating the disc at a constant rotation rate in a horizontal direction such that the base plate and mask repeatedly pass the outlet of the spray gun; and spraying particles of a first material on the mask and sections of the surface of the base plate visible through the openings in the mask.
Claims12
A method for forming a plurality of spacers on a base plate, the method comprising:
- attaching a base plate for a semiconductor module to a lateral side of a rotatable disc, with a first surface of the base plate facing away from the rotatable disc;
- directing an outlet of a spray gun towards a first edge of the first surface of the base plate;
- attaching a spacer mask to the rotatable disc and/or to the base plate such that the spacer mask is arranged adjacent to the first surface of the base plate and between the base plate and the spray gun, the spacer mask comprising a plurality of openings, wherein a size and shape of each opening of the plurality of openings corresponds to a size and shape of a spacer to be formed on the base plate;
- rotating the rotatable disc with the base plate and the spacer mask attached thereto at a constant rotation rate in a horizontal direction such that the base plate and the spacer mask repeatedly pass the outlet of the spray gun;
- and
- spraying particles of a first material on the spacer mask and sections of the first surface of the base plate visible through the openings in the spacer mask through the outlet of the spray gun, while moving the spray gun in a vertical direction from the first edge towards an opposite second edge of the first surface of the base plate, wherein the spray gun is moved from the first edge towards the opposite second edge of the first surface of the base plate at a constant speed.
A method for forming a plurality of spacers on a base plate, the method comprising:
- attaching a base plate for a semiconductor module to a lateral side of a rotatable disc, with a first surface of the base plate facing away from the rotatable disc;
- directing an outlet of a spray gun towards a first edge of the first surface of the base plate;
- rotating the rotatable disc with the base plate attached thereto at a constant rotation rate in a horizontal direction such that the first surface of the base plate repeatedly passes the outlet of the spray gun;
- and
- spraying particles of a first material on the first surface of the base plate through the outlet of the spray gun,
- wherein a plurality of hold positions are defined between the first edge and an opposite second edge of the first surface of the base plate,
- wherein the spray gun moves successively from one hold position to the next hold position,
- wherein the spray gun stops at each hold position for a defined amount of time, and
- wherein spraying particles of the first material on the first surface of the base plate through the outlet of the spray gun comprises spraying particles of the first material on the first surface of the base plate while the spray gun stops at each of the plurality of hold positions.
Dependencies are inferred from the claim text.