Semiconductor package with elastic coupler and related methods
View Patent ↗A semiconductor package includes: a die coupled to a substrate; a housing coupled to the substrate and at least partially enclosing the die within a cavity of the housing, and; a pin fixedly coupled to the housing and electrically coupled with the die. The pin includes a reversibly elastically deformable lower portion, which in implementations includes a spring, configured to compress to prevent a lower end of the pin from lowering beyond a predetermined point relative to the substrate when the housing is lowered to be coupled to the substrate. The pin is fixedly coupled in a top of the housing and is configured to be coupled with the substrate by lowering the housing towards the substrate. In implementations the pin includes two rigid portions coupled together only with a coil spring, the spring biasing the rigid portions away from one another when the housing is lowered towards the substrate.
1. A method of forming a semiconductor package, comprising:
securing a pin to a housing, the pin comprising a spring located in the pin between the housing and a substrate;
lowering the housing relative to the substrate having a semiconductor die (die) coupled thereon to at least partially enclose the die within a cavity of the housing,
wherein the lower end of the pin comprises a flat plate and wherein, prior to lowering the housing, the flat plate is coupled to the upper portion of the pin through only the spring; and
while lowering the housing, compressing the spring so that a lower end of the pin does not lower beyond a predetermined point relative to the flat plate and the lower end of the pin so that an upper portion of the pin is biased towards the housing,
wherein lowering the housing comprises electrically coupling the pin with the die.
2. The method of claim 1 , further comprising securing the housing to the substrate.
3. The method of claim 2 , wherein securing the housing to the substrate comprises maintaining compression of the spring.
4. The method of claim 1 , wherein compressing the spring comprises compressing the spring between two rigid portions of the pin.
5. The method of claim 4 , wherein compressing the spring comprises biasing the two rigid portions of the pin away from one another.
6. The method of claim 1 , wherein compressing the spring comprises compressing the spring along a direction substantially parallel with a longest length of the pin.