Slot and memory module for a slot standing interconnect
View Patent ↗According to exemplary embodiments, a controlled-depth slot extending into a circuit board is provided. The controlled depth slot may be milled, and may comprise ½ radial plated through-holes to generate a solderable “D” interconnect feature. The slot may include interconnect features on one to five sides. According to another exemplary embodiment, a circuit board having a depth-controlled interconnect slot is provided in conjunction with one or more solderable technology modules. The one or more solderable technology modules may include memory devices, power devices such as Point of Load Supplies (POLS), security devices and anti-tamper devices, capacitance devices, and other types of chips such as Field Programmable Gate Arrays (FPGAs). The solderable technology modules may be soldered into the slot to secure the modules in the slot and connect the modules to interconnects on the circuit board.
1. A circuit board comprising a slot for seating a technology module, the slot comprising:
a depth, the depth of the slot extending a portion of a depth of the circuit board without extending through the entirety of the circuit board, wherein the slot is substantially 0.005 inches to 0.125 inches deep; and
one or more ½ radial interconnect features, the ½ radial interconnect features provided on at least one side of the slot, wherein each of the radial interconnect features has a radius of 0.00295 inches to 0.0061 inches.
2. The circuit board of claim 1 , wherein the radial interconnect features are plated through-holes.
3. The circuit board of claim 1 , wherein the slot comprises 2 to 3000½ radial interconnect features.
4. The circuit board of claim 1 , wherein the ½ radial interconnect features are provided on 3 to 4 sides of the slot.
5. The circuit board of claim 1 , wherein each of the ½ radial interconnect features has a radius, and at least two of the ½ radial interconnect features have different radiuses.
6. The circuit board of claim 1 , wherein the slot further comprises an interconnect feature provided on the bottom of the slot.
7. The circuit board of claim 1 , wherein the slot is substantially 0.010 inches to 0.250 inches wide.
8. The circuit board of claim 1 , further comprising an adhesive provided to the one or more ½ radial interconnect features.
9. The circuit board of claim 1 , wherein the adhesive is solder.
10. A circuit board assembly, the assembly comprising:
a circuit board;
a slot internal to the circuit board, the slot comprising one or more ½ radial interconnect features, the ½ radial interconnect features provided on at least one side of the slot; and
a module provided in the slot wherein the module comprises 200 to 300 solderable fingers that connect with the radial interconnect features.
11. The module of claim 10 , wherein the module is substantially 0.010 inches to 0.125 inches thick.
12. The system of claim 10 , wherein:
the module is secured to the circuit board using solder;
the fingers comprise tin-lead; and
the solder comprises tin-lead solder.
13. The system of claim 10 , wherein the fingers have at least one flat surface for receiving solder.
14. The system of claim 10 , wherein the module is provided with anti-tamper security features.
15. The system of claim 10 , wherein the module is a memory module.
16. The system of claim 15 , wherein the memory module includes 1 GB to 1000 GB of memory.