Motherboard assembled for medical wearable devices

Medical devices call for extreme reliability and accuracy due to their special application requirements, and medical care has been one of PCBCart’s leading business scopes since the assembly service provider was established in 2005.

Recently, PCBCart completed a PCBA project for a patch insulin pump system developed by MicroTech Medical, which specialises in development, manufacturing, sales and maintenance of Category II and III medical equipment. MicroTech Medical later expressed great satisfaction with the performance of the assembled PCBs.

The assembled PCB in this project was a motherboard that was required to initialise the patch insulin pump, display the user’s data concerning blood glucose, calculate bolus and basal increments, and instruct the user to inject the proper amount of insulin at the right time. To implement the above functions, double-sided SMT assembly was called for on a 1 mm-thick bare PCB, using ENIG as a surface finish.

To minimise product, the project adopted a large number of BGAs, QFNs and LCCs, such as TPS65217DRSL (0.4 mm pitch QFN), TLV320AIC3106IZQE (0.5 mm pitch BGA), MT29F2G08ABAEAH4-IT:E (0.8 mm pitch BGA), AM3354BZCZ100 (0.8 mm pitch BGA), BG connectors, etc. The smallest package size is 0201.

To be fully compatible with the project’s requirements, engineering staff at the PCBCart plant carried out professional operating procedures to conform to quality standards. SMT assembly at the PCBCart plant goes through solder paste printing, SPI, placement, reflow soldering, AOI, etc, after which inspections or tests are conducted in order to confirm product quality.

“We feel great satisfaction towards PCBCart for its high-level PCBA capability and high reliability,” said Zhao, Purchasing Manager at MicroTech Medical. “The manufacturing procedure is totally traceable in the whole process and we don’t need to worry about lead time. We’ve decided to build long-term cooperation with PCBCart on this project and we’re also expecting more.”

“We are quite satisfied with the quality of assembled PCBs provided by PCBCart,” added Wang, Quality Manager at MicroTech Medical. “All the boards pass input and output tests and drop tests. We’re very happy to see that.”

Image caption: The final look of the PCB assembled by PCBCart (top and bottom sides).

Please follow us and share on Twitter and Facebook. You can also subscribe for FREE to our weekly newsletter and bimonthly magazine.