Abstract:
A multi-layer cover tape construction includes a polymeric substrate with a first major surface and a second major surface; an adhesive layer disposed on the first major surface of the first substrate; and an antistatic layer disposed on the first major surface of the first substrate. The polymeric substrate has a surface energy of between 5 and 500 mN/m, and a surface roughness of between 0.1 and 5µm.
Abstract:
A carrier tape (300) with a continuous channel (310) is proposed instead of the individual separate embossed pockets (110) prevalent in conventional carrier tapes (100). The continuous channel (310) reduces or even eliminates small bridge problem typically associated with the conventional carrier tapes (100). The proposed carrier tape (300) can include dividers (330) and cutouts (340) to accommodate the devices (205) with minimum pitch without sacrificing corner relief. A cover tape (450) can be included to seal the devices (205) below the top surface of the devices (205). Further, the floor (316) of the continuous channel (310) can be lined with an adhesive (560).
Abstract:
A package (200) for storing and providing supply of beamlead semiconductor devices (202, 204, 206) in a pick-and-place manufacturing process of Application Specific Integrated Circuits, ASICs, wherein the beamlead semiconductor devices (202, 204, 206) are picked directly from said package (200). The package (200) comprises a container part (302) and a lid part (304), said container part (302) comprising plurality of regularly displaced, substantially flat-bottom recesses and said lid part (304) being detachably attached to said container part (302). At least a top surface of said container part (302) is made of electric conductive material and said top surface (400) of said container part (302) is covered with a non-reflective coating and the lid part (304) is transparent in at least these areas, which are located above the recesses.
Abstract:
Eine Bauteilhandhabungsvorrichtung dient zum Entnehmen von Bauteilen aus einem strukturierten Bauteilvorrat und zum Ablegen der entnommenen Bauteile an einer Empfangseinrichtung. Diese muss vor der erstmaligen Inbetriebnahme, nach dem Auswechseln von Vorrichtungsbestandteilen oder nach Wartungsarbeiten jeweils neu justiert werden, um den Präzisionsanforderungen beim Handhaben der Bauteile gerecht zu werden. Die Bauteilhandhabungsvorrichtung verfügt hierzu über eine Selbstjustierungsvorrichtung, welche es ermöglicht ohne manuelles Eingreifen eines Bedieners die Vorrichtung zeiteffizient und mit hoher Präzision zu justieren. Die Selbstjustierungsvorrichtung besteht hierbei aus einer Mehrzahl von optischen Sensoren und einer Steuerung Ein Abgleich der durch die optischen Sensoren gewonnenen Messergebnisse mit Hilfe von originär für die Bauteilkontrolle während der Fertigung installierten Lage- und Eigenschaftssensoren stellt ein hohes Maß an Verfahrenszuverlässigkeit her und ermöglicht gleichzeitig die Kontrolle von Vorrichtungsbestandteilen auf Beschädigung.
Abstract:
Deep reactive ion silicon etching of a device wafer, laser-induced release of individual dies, and individual placement of the dies on flexible substrates facilitate formation of circuits having relatively large external inductors for powering devices such as RFID devices. Small flexible tabs enable die-inductor connection. The absorption properties of both an adhesive layer and an ablation layer may be employed to facilitate debonding of individual dies (22') from a glass handler (28') without damaging integrated circuits (24') associated with the dies. Die packs (36) including cavities (38) for accepting individual dies facilitate fabrication processes using dies having small dimensions.
Abstract:
Cover tapes for securing electronic parts in a carrier tape are provided. The cover tape includes opposing edges extending along a longitudinal direction of the cover tape orthogonal to a transverse direction, and first and second layers. The first layer is stretch-oriented along the longitudinal direction at a first stretch ratio, and the first and second layers are stretch-oriented along the transverse direction at a second stretch ratio greater than the first stretch ratio. The cover tape further includes a first major surface extending along the longitudinal direction and between the opposing edges, the first major surface including a plurality of linear depressions extending along the longitudinal direction. The cover tape is hand-tearable along each linear depression. Also, assemblies and methods for making cover tapes are provided.
Abstract:
A carrier tape for transporting a plurality of components includes a flexible substrate extending along a longitudinal axis of the carrier tape, a plurality of pockets formed in the substrate and spaced apart along the longitudinal axis of the carrier tape, and an adhesive layer. Each pocket includes a bottom wall and a side wall extending from the bottom wall to a top surface of the flexible substrate. The adhesive layer is disposed on the bottom wall of each pocket in the plurality of pockets, such that when a component is placed in a pocket in the plurality of pockets, the adhesive layer in the pocket permanently bonds to the component, and such that when the adhesive is exposed to UV radiation the adhesive bond strength is sufficiently reduced so that the component can be removed from the pocket.
Abstract:
A method for assembling a device. The method comprises placing a functional element in a first opening formed in a template substrate and transferring the functional element to a device substrate having a second opening formed therein wherein the functional element is held within the second opening and against an adhesive film coupled to the device substrate.
Abstract:
Convective heat transfer enhancement features are formed in trays for carrying and thermally conditioning semiconductor devices or on integrated circuit chip packages. Upward extending ribs, perpendicular to a fluid flow, are formed in the trays and/or packages for increasing the mixing of the fluid flow near the devices under test, thereby enhancing convective heat transfer to or from the devices. Downward extending ribs are also formed in the trays and/or packages. The upward and downward extending ribs formed in the trays are in a staggered relationship for facilitating the stacking of trays. Alternatively, a surface roughness is applied to the trays and/or packages. The surface roughness applied to the packages is such that sufficient smooth regions remain on the packages for allowing pick-and-place machines to handle the packages.