Abstract: A locator for a material sheet comprises at least two oppositely disposed stoppers, and a slot sheet. Each of the stoppers provides a flat bearing surface and a slant surface extending outward and upward from the bearing surface with a junction between them. The slot sheet is disposed under the stoppers and joining to a bottom of the respective stopper. The distance between the junctions on the two stoppers is corresponding to the length of the slot sheet.

Abstract: A locator for a material sheet comprises at least two oppositely disposed stoppers, and a slot sheet. Each of the stoppers provides a flat bearing surface and a slant surface extending outward and upward from the bearing surface with a junction between them. The slot sheet is disposed under the stoppers and joining to a bottom of the respective stopper. The distance between the junctions on the two stoppers is corresponding to the length of the slot sheet.

Abstract: A locator for a material sheet comprises a frame with a homogeneous cross section, and a susceptor. The frame at the left, the right, the front, and the rear sides thereof surrounds with an inner wall. The distance between the left and the right sides of the inner wall and the distance between the front and the rear sides thereof are corresponding to the size of the upward projection of the susceptor. The upper end of the inner wall extends outward a horizontal support surface. The distance between the left and the right sides of the support surface and the distance between the front and the rear sides of the support surface are corresponding to the size of the sheet. An upward slant surface extends outward from the support surface. The sheet can slide downward along the slant surface to cover the susceptor while the sheet is laid down from the top of the locator.