PD Polymer Tip Tweezers ESD Testing



QUALITY ASSURANCE ESD TESTING PROCEDURES FOR "PD" POLYMER TIP TWEEZERS
"The Technical Source!"
OVER 15 YEARS OF PROVIDING STATIC DISSIPATIVE HANDTOOLS TO MEET THE STRICT SPECIFICATIONS OF THE DISK DRIVE INDUSTRY.


TDI/Ideal-Tek meets all of the criteria for ESD Testing, as proposed by IDEMA. All of these testing procedures are performed internally, including critical "Transient Current Discharge" testing.


POINT-TO-POINT RESISTANCE


Resistance Between Tip Top and Bottom (Tip Without Handle) Resistance Between Handle and One Tip at A Time Surface Resistance 100% Inspection Automatic PASS/FAIL Signal The acceptance limits have been defined as follow: Low Resistance Limit: 1.10⁰⁶ Ohm/high resistance limit: 1.10⁰⁸ Ohm for 50 and 100V Low Resistance Limit: 1.10⁰⁷ Ohm/high resistance limit: 1.0⁰⁹ Ohm for 10V


STATIC DECAY ANALYSIS

The time to discharge a 20pf isolated metal plate previously charged to 1000 Volts to less than 10 Volts is measured. During the 1000 Volt discharge, sparks should not be observed. The decay curves should have a correct exponential course. The acceptance limits defined as follows: Residual Voltage < 3 Volt Decay Time < 500 m/second



TRIBOELECTRIC CHARGE DETERMINATION

The purpose of this discharge test is to measure any residual charges on the tweezers following normal grounding procedures as shown. The acceptance limits defined as follows: Residual Voltage < 3 Volt



TRANSIENT CURRENT DISCHARGE ANALYSIS



MR circuits utilized in Disk Drive Assemblies are highly static sensitive in both current and voltage ESD discharge environments. TDI/Ideal-Tek "PD" Polymer Tweezers were developed to provide the lowest discharge parameters, as measured by Transient Current Discharge procedures defined by the Disk Drive Industry. TDI/Ideal-tek meets the critical Transient Current Discharge parameters for each Disk Drive Customer's specifications. The Direct Charged Device Model [DCDM] was chosen to as methodology to determine the transient peak current which occurs during the discharge of a charged object through a dissipative tip tweezers.

Transient Current Determination Methodology	Test Procedure


Back to Top



Electronics / Medical Device Assembly \| Disk Drive Assembly \| Life Sciences / Pharmaceutical / Biotech Ergonomics \| ESD Safe \| Cleanroom Equipment \| Assembly Ph:(520) 799-8000 \| Fax: (520) 799-8002 \| Email: sales@tdiinternational.com © Copyright 2000-2008 TDI International, Inc. TDI Home \| Products \| What's New? \| Hot Deals! \| Sales Reps \| Privacy Policy