Variable pitch multi-needle head for transfer of semiconductor devices
A direct transfer apparatus includes a dot matrix transfer head, which includes an impact wire housing and a plurality of impact wires disposed within the impact wire housing and extending out of the impact wire housing. A guide head is attached to the impact wire housing. The guide head includes multiple holes configured to arrange the plurality of impact wires in a matrix configuration, the matrix configuration being a matched-pitch configuration.
1. A direct transfer apparatus for transferring semiconductor device die from a first substrate to circuit traces disposed on a second substrate, the first substrate having a first side and a second side, and the semiconductor device die being disposed on the first side of the first substrate, the direct transfer apparatus comprising:
a dot matrix transfer head including:
an impact wire housing,
a plurality of impact wires disposed within the impact wire housing and extending out of the impact wire housing, the plurality of impact wires being disposed such that the plurality of impact wires are arranged in a first configuration, and
a first guide head configured to secure the plurality of impact wires in the first configuration, the first configuration having a first spacing between individual impact wires of the plurality of impact wires, wherein the first guide head is interchangeable with a second guide head, the second guide head being configured to secure the plurality of impact wires in a second configuration having a second spacing between the individual impact wires of the plurality of impact wires, the second spacing being different than the first spacing.
2. The direct transfer apparatus according to claim 1 , wherein the first configuration includes an arrangement such that the plurality of impact wires are aligned with a layout of at least one of the semiconductor device die or the circuit traces.
3. The direct transfer apparatus according to claim 2 , wherein the plurality of impact wires are configured in the first configuration or the second configuration based at least in part on which of the semiconductor device die or the circuit traces have a consistent spacing relative to the other.
4. The direct transfer apparatus according to claim 1 , wherein the plurality of impact wires are aligned with the circuit traces in the first configuration and the direct transfer apparatus is configured to adjust a position of the semiconductor device die relative to the plurality of impact wires and the circuit traces while the plurality of impact wires are aligned with the circuit traces in the first configuration.
5. The direct transfer apparatus according to claim 1 , further comprising a first frame to hold the first substrate and a second frame to hold the second substrate.
6. The direct transfer apparatus according to claim 1 , wherein the first configuration is a first matrix configuration and the second configuration is a second matrix configuration that is different than the first matrix configuration.