Abstract:
Methods and systems are provided for the split and separation of a layer of desired thickness of crystalline semiconductor material containing optical, photovoltaic, electronic, micro-electro-mechanical system (MEMS), or optoelectronic devices, from a thicker donor wafer using laser irradiation.
Abstract:
Methods and systems are provided for the split and separation of a layer of desired thickness of crystalline semiconductor material containing optical, photovoltaic, electronic, micro-electro-mechanical system (MEMS), or optoelectronic devices, from a thicker donor wafer using laser irradiation.
Abstract:
PROBLEM TO BE SOLVED: To provide a cutting-out method for forming and transferring thin films.SOLUTION: A process for cutting out a block of material (10) comprises the following stages: (a) forming in the block (10) a buried zone (12) embrittled by ion introduction, the buried zone defining a superficial part (14), (b) forming, at the level of the embrittled zone, separation initiating zones (30, 36) using a local thermal treatment as first separation means, and (c) separating at the level of the embrittled zone the superficial part (14) of the block from a remaining part (16) called the mass part, with the separation initiating zones (30, 36) as the initiating points, using second separation means selected from a thermal treatment and/or application of mechanical force acting between the superficial part and the embrittled zone.
Abstract:
Die vorliegende Erfindung bezieht sich auf ein Verfahren zum Herstellen einer Mehrschichtanordnung. Das erfindungsgemäße Verfahren umfasst dabei mindestens die Schritte: Bereitstellen eines Spendersubstrats (2) zum Abtrennen einer Festkörperschicht (4), insbesondere eines Wafers; Erzeugen von Modifikationen (12), insbesondere mittels LASER-Strahlen (10), in dem Spendersubstrat (2) zum Vorgeben eines Rissverlaufs; Bereitstellen eines Trägersubstrats (6) zum Aufnehmen der Festkörperschicht (4); Anbonden des Trägersubstrats (6) mittels einer Bondingschicht (8) an dem Spendersubstrat (2), wobei das Trägersubstrat (6) zur Erhöhung der mechanischen Festigkeit der abzutrennenden Festkörperschicht (4) für die Weiterverarbeitung vorgesehen ist, Anordnen oder Erzeugen einer Spannungserzeugungsschicht (16) an dem Trägersubstrat (6); Thermisches Beaufschlagen der Spannungserzeugungsschicht (16) zum Erzeugen von Spannungen in dem Spendersubstrat (2), wobei durch die Spannungserzeugung ein Riss ausgelöst wird, der sich entlang des vorgegebenen Rissverlaufs zum Abtrennen der Festkörperschicht (4) vom Spendersubstrat (2) ausbreitet, so dass sich die Festkörperschicht (4) mit dem angebondeten Trägersubstrat (6) abtrennt.
Abstract:
Methods and systems are provided for the split and separation of a layer of desired thickness of crystalline semiconductor material containing optical, photovoltaic, electronic, micro-electro-mechanical system (MEMS), or optoelectronic devices, from a thicker donor wafer using laser irradiation.
Abstract:
The invention relates to a method for producing a multi-layer assembly. The method according to the invention comprises at least the following steps: providing a donor substrate (2) for removing a solid layer (4), in particular a wafer; producing modifications (12), in particular by means of laser beams (10), in the donor substrate (2) in order to specify a crack course; providing a carrier substrate (6) for holding the solid layer (4); bonding the carrier substrate (6) to the donor substrate (2) by means of a bonding layer (8), wherein the carrier substrate (6) is provided for increasing the mechanical strength of the solid layer (4) for the further processing, which solid layer is to be removed; arranging or producing a stress-producing layer (16) on the carrier substrate (6); thermally loading the stress-producing layer (16) in order to produce stresses in the donor substrate (2), wherein a crack is triggered by the stress production, which crack propagates along the specified crack course in order to remove the solid layer (4) from the donor substrate (2) such that the solid layer (4) is removed together with the bonded carrier substrate (6).
Abstract:
Methods and systems are provided for the split and separation of a layer of desired thickness of crystalline semiconductor material containing optical, photovoltaic, electronic, micro-electro-mechanical system (MEMS), or optoelectronic devices, from a thicker donor wafer using laser irradiation.