Memory Module Manufacturing
Memory module manufacturing is quite simple:
- Solder paste is added to the PCB;
- Memory chips and other components (little capacitors and SPD chip) are put on the PCB;
- The module enters an oven where the solder paste will be melt thus soldering the memory chip to the PCB;
- The modules are cut from the panel;
- The memory module is then tested;
- The memory module is packed and shipped to costumers.
As we mentioned, Kingmax buys the printed circuit boards (PCB) from another company, called Brain Power. The PCB comes in a panel, with several modules attached together (see Figure 20). In the case of the modules being manufactured, each panel had nine modules.
After being unpacked, solder paste (grey stuff in Figure 22) is applied to the PCB. A stencil is used in order to allow the solder paste to be applied only on the exact spots were the manufacturer wants to solder something.