Patent ID: 11935764
Assignee: BESI NETHERLANDS B.V.
Field: Semiconductors (Electrical engineering)
Classification: CPC B  H | IPC H

Claim 10:
11. A method for forming saw-cuts into a semiconductor product, comprising the steps of:
gripping a semiconductor product with a carrier,
determining with a first position sensor the position of a point on a free surface of the semiconductor product,
determining with a second position sensor the position of a point on a cutting edge of a saw blade,
using a reference to link the position of the first position sensor to the position of the second position sensor,
processing, with aid of the reference, the positions determined by the first position sensor and the second position sensor into a position of the point on the free surface of the semiconductor product relative to the point on the cutting edge of the saw blade, and
moving the saw-blade relative to the carrier based on the position of the cutting edge of the saw blade relative to the bottom surface of the semiconductor product, thereby cutting into the free surface of the semiconductor product,
wherein the reference to link the position of the first position sensor to the position of the second position sensor is determined by at least one reference surface on the carrier that is observed by the first position sensor and/or the second position sensor, and
wherein the first position sensor and the second position sensor are determining the position of a point in relation to the at least one reference surface.