Custom Manufactured Printed Circuit Board (PCB) Assembly for the Medical Industry

Image

TCS Electronics custom manufactures back flex printed circuit boards (PCB) for a medical application. Beginning with a customer-supplied print, we began the manufacturing process by perfecting the design. Using polyimide with designated stiffeners, water-soluble solder-paste, and a designated adhesive as the primary materials, we manufactured the PCB board in several steps.

The technological aspects of the PCB were supported using surface mount technology (SMT), and we loaded boards in an SMT board carrier. To cover the fingers, we used Kapton tape. After picking and placing, we hand-applied a pre-cut gasket, and then labeled, soldered, washed, and inspected the PCB. Once inspection was complete we pressed PEM nuts into two designated locations, applied conformal coating, and baked the PCB in a ventilated oven.

The PCB board was then subjected to materials and equipment and functional testing. The final component weighed an estimated .015 pounds. When we were certain we had met all of our client’s expectations and precise standards, we packed the PCBs in nested, conductive vacuum-formed trays and delivered it to them.

To learn more about this project and others, please contact TCS Electronics.

Image
SPECIFICATIONS
Product Description

This Back Flex Printed Circuit Board (PCB) Assembly was custom-manufactured for a Medical application

Capabilities Applied/Processes

SMT-Surface Mount Technology
Board Preparation

  • Use Kapton Tape to Cover Fingers
  • Load Boards in SMT Board Carrier

Pick and Place
Hand Assembly

  • Apply Precut Gasket

Labeling
Soldering
Washing
Inspection
PEM Insertion

  • Press PEM nuts into Two Locations

Conformal Coating

  • 2 to 3 Mils Thick
  • Bake in Ventilated Oven

Testing

  • Materials & Equipment
  • Functional Testing

Equipment Used to Manufacture Part

DEK 265 Screen Printer
Soldering Iron
Oscilloscope
Juki 760
Vitronics XPM2-520 Reflow oven
Trek Triton IV, In-line RO Cleaner
Omega Meter 600 Cleanliness Tester

Fine Pitch Device

.020"

Material Used

Polyimide With FR4 Stiffeners
Water-Soluble SolderPaste
Loctite 348 Adhesive

In process testing performed

First Piece InspectionManufacturing Inspection: Inspect 100%
Reference Customer Drawings and Bill of Materials
Check Each Panel for Correct Placement and Polarity of
Installed Components
Record any Defects
Quality Inspection: 20% Sample Inspection of Each Rack
Final Inspection:
Inspect to customers drawing and IPC-610 standards
Check for Damaged or Stuck Pins
Verify "First Piece Inspection"
Note any Defects on the Inspection Plan
Verify Polarity

Estimated Part Weight

First Piece InspectionManufacturing Inspection: Inspect 100%
Reference Customer Drawings and Bill of Materials
Check Each Panel for Correct Placement and Polarity of
Installed Components
Record any Defects
Quality Inspection: 20% Sample Inspection of Each Rack
Final Inspection:
Inspect to customers drawing and IPC-610 standards
Check for Damaged or Stuck Pins
Verify "First Piece Inspection"
Note any Defects on the Inspection Plan
Verify Polarity

Industry for use

Medical

Packaging

Conductive Vacuum Formed, Nested Trays

Standards Met

Customer Supplied Print IPC-A-610 Class 3
IPC-S-815 Class 3
IPC-J-STD-001D

Product Name

Back Flex Printed Circuit Board (PCB) Assembly