Issue link: https://iconnect007.uberflip.com/i/1511130
34 DESIGN007 MAGAZINE I NOVEMBER 2023 whoever may be assembling your boards can be mitigated by simply involving them in your design review process. Seven Document your component library process A well-documented CAD library process reduces the chances of errors when creat- ing parts. Part requests should include the part number, manufacturer, part descrip- tion, datasheet(s), priority level, need date, package type, part type, and any descriptive information or notes for symbol or footprint creation. e part that is created to fulfill the request should be documented and linked to the request. e part should then be reviewed and documented as either meeting the request or as needing to be reworked. e documenta- tion could take the form of a spreadsheet, data- base, or even a physical paper trail. e intent is to explicitly communicate what parts need to be created and how. Eight Test point placement is critical PCB test points serve to support design and production. Circuit designers will use test points to assist in integration and verify func- tionality. Test points are typically used in pro- duction to load soware/firmware and verify proper PCB assembly. Production using test points should take precedence over design and engineering test points. Test point loca- tions directly impact the complexity of test fixture design, so strive to place them on only one side of the PCB. Do not place components on the opposite side of a PCB underneath a test point. is provides space on the PCB to apply an opposing force to reduce stress and strain on the board assembly when test points are engaged during test. Don't find space for test points. Make space by performing test point placement alongside component place- ment. DESIGN007 Resources 1. "Power Delivery System Design," by Lee Ritchey, Altium. 2. Simulators – Keysight ADS, Siemens EDA HyperLynx, Ansys HFSS. Chris Young is founder and president of Young Engineering Services.