Motorola V300, V303, V400, V400p, V600 Service Manual

Consumer Solutions & Support
US Competency Center
600 North US Highway 45
Libertyville, Illinois	60048

Website: gs.mot.com

	FIELD SERVICE BULLETIN
FSB Number:	LVCCFSB2005-139
Author:	Tony Bryan
Date:	May 12, 2005
Total No. of Pages: 3
Subject:	Skyworks Eagle IC – High Current Failure
Model Affected:	GSM V300, V303, V400, V400p, V600, V220, E398, C650,
	C550, V180, C380, E550/V535, V620/V600i, V3
Level of Repair:	3

Problem

Service is aware of an issue identified during the 1st 200 NPI analysis on several GSM products that use the Skyworks PA P/N 5189818N01. Some units, returned with customer complaints of “Can’t Power on” or “Battery short life”, were found to have a higher than normal current draw. This issue is caused by abnormal high current consumption of Skyworks PA P/N 5189818N01 due to a mechanical scratch across the die surface. Such damage would lead to a short to ground on the die surface after phone assembly and field operation.

Solution

Skyworks has instituted several corrective actions to reduce the occurrence of mechanical damage failure mode. The actions include:

1)Added Cleaning After GaAs Die Scribe and Break Process

2)More Frequent Cleaning of the Pick up Tip (After Every Lot), Replacement of

Pick up Tip (After Every 17,000 Placements).

3)Heightened Wafer Inspection (100X Microscopic Inspection of Panels After Die Attach – for Lot Set-up) Added to Improve Overall Product Quality at all

Assembly Sites. – WW52 ‘04

MOTOROLA INTERNAL USE ONLY

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