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Rick Hartley – The state of signal integrity

0:10 What is the state of signal integrity today as seen by the design world?

2:19 Would having standard stack-ups using conventional materials, like FR-4, I-speed, etc., be a benefit?

2:51 Are the signal attenuation or insertion loss kind of concepts important for designers?

4:41 What is behind the idea of the signal that steps four times rather than once?

5:52 What is driving the miniaturizing of ICs? Why doesn’t the PCB industry keep up?

6:44 Do you feel there is a scope for 2 or 1-mil technology?

7:25 What perspective would you like to give designers who are involved in the automotive electronics, especially from a signal integrity perspective?

9:16 So fine lines will definitely have an impact on low layer counts.

10:36 Why do designers feel they need one ounce copper for ground and power planes?

13:00 What about the roughness of the copper and its impact on insertion loss, etc..?

14:39 In our trenched technology, we have found out that the roughness of the copper is not a concern anymore because you’re cutting the trenches by laser.
14:46 You remove the dielectric with the laser, then you plate, and you make a trench.

15:35 What further advice would you give to designers today?


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Sierra Circuits is an ISO 9001:2008, ISO 13485:2003 and MilSpec MIL-PRF-55110 certified, Silicon Valley-based, high-technology full service printed circuit board manufacturing and assembly shop. We specialize in HDI protos, Microelectronics, and 0.5mm pitch BGAs, quickturn PCBs (as quick as 2-3 days for 12-20 layers) and medium production. We are a privately held, woman- and minority-owned shop located in Sunnyvale, California since 1986.

Our Certifications:
ISO 9001_2008 Certificate
ISO 13485_2003 Certificate
MIL-PRF-55110 Certified
MIL-PRF-5510 Rev G
UL Certified
IPC-600-A Certified Trainers
Defense Logistics Agency US/Canada Joint Certification Program
Defense Logistics Agency Approval Letter
IPC Manufacturers Qualification Profile (MQP) for Sierra Proto Express, Sunnyvale, California plant
ITAR Registration Letter
Minority Business Certification
Mil-Spec-PRF-55110 Certificate for GF Materials
Mil-Spec-PRF-55110 Certificate for GI Materials


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