Abstract:
A system for singulating an IC unit from a substrate, said IC unit having a combination of linear and non-linear peripheral edges, said system comprising a profile cutting device for cutting the non-linear portions of the IC unit; a longitudinal cutting device for cutting the linear portions of the IC unit, said cutting means located within a singulation zone.
Abstract:
The present invention is related to a method for reducing attraction forces between wafers (4). This method is characterized in that it comprises the step of, after sawing and before dissolution of the adhesive (5), introducing spacers (6) between wafers (4). The invention comprises also a wafer singulation method and an agent for use in said methods .
Abstract:
Eine Einrichtung (10) zum Positionieren und Lageerhalten von dünnen Siliziumwafern (14) nach dem Drahtsägen eines Siliziumwaferblocks (13) ist mit einer den Waferblock (13) aufnehmenden Kassette (17) mit zwei Andrückleisten (20) versehen, deren dem Waferblock (13) zugewandte Seiten mit Elementen (32, 33, 34, 36) versehen sind, die in den engen Schneidspalt (15) zwischen den Wafern (14) distanzwahrend und haltgebend eingreifen. Auf diese Weise sind die Wafer in ihrer Lage und Position auch nach dem Ablösen einer Trägerglasplatte (11) fixiert, so dass insbesondere der Spalt (15) im Bereich der bisherigen Verbindungsstelle (25) mit der dann abgelösten Trägerglasplatte (11) erhalten bleibt und so die nachfolgende Vereinzelung vereinfacht.
Abstract:
A method of etching a silicon substrate is described. The method includes bonding a first silicon substrate (200) to a sacrificial silicon substrate (240, 241). The first silicon substrate (200) is etched. A pressure is applied at an interface of the first silicon substrate (200) and the sacrificial silicon substrate (240, 241) to cause the first silicon substrate (200) to separate from the sacrificial silicon substrate (240, 241). An apparatus having metal blades (620) can be used to separate the substrates.
Abstract:
A method of etching a silicon substrate is described. The method includes bonding a first silicon substrate (200) to a sacrificial silicon substrate (240, 241). The first silicon substrate (200) is etched. A pressure is applied at an interface of the first silicon substrate (200) and the sacrificial silicon substrate (240, 241) to cause the first silicon substrate (200) to separate from the sacrificial silicon substrate (240, 241). An apparatus having metal blades (620) can be used to separate the substrates.