Panasonic - 2009 PCB TLA consumer electronics category winner

Panasonic - 2009 PCB TLA consumer electronics category winner

This blog is part of a series talking about the 2009 Technology Leadership Awards competition and winners in each category. This time we’re highlighting Panasonic, who won the award in the ‘Consumer Electronics & Handheld’ category.

Design team: Takayuki Hinokidani, Shuhei Osako

End product use: Blue-ray and hard disk recorder main digital board

Stats:

Design challenges:

• Design for…signal integrity and cost.
• Most complex component: 857 pin BGA with 1mm pin pitch.
• Used DDR2-800MHz memory with matched length tolerances of 0.3mm-1mm (including package length).
• Didn’t use HDI due to cost constraints.
• Had to minimize area of DDR memory from previous design – gained placement area in the process. Achieved a 21% reduction by eliminating extra passives and miniaturization of one of the components.

Preparing Recommendations

Design tools:

• Expedition Enterprise flow, including HyperLynx GHz
• Used HyperLynx to confirm improved signals (length, clearance, termination, impedance) met timing requirements.

Judge’s comments:

• “Good job of routing components both sides. Serious challenges in complexity. Did well to fit into six layers & components on both sides without HDI.”

Design images:

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