TMP93CS42AF datasheet(5/48 Pages) TOSHIBA

Part #	TMP93CS42AF

Description	Quality And Reliability Assurance / Handling Precautions

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Manufacturer	TOSHIBA [Toshiba Semiconductor]

Direct Link	http://www.semicon.toshiba.co.jp/eng

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Quality and Reliability Assurance / Handling Precautions

030901

QUA-5

2002-02-20

2 Handling Precautions for Microcontrollers

2.1

Mounting Precautions

Plastics have basically porous feature. When a chip (especially an SMD which has a thin

plastic surface) is heated in a state of moisturized and is soldered by the reflow soldering

method, moisture is vaporized as the temperature rises to cause a package expanded. Or a

borderd surface between a lead frame and a plastic material is peeled off to cause a crack.

These bring serious troubles on reliability.

In order to prevent hygroscopity or enable high heat treatment after absorbing moisture,

Toshiba uses a dampproof packing and/or a heat proof tray.

(1)

Recommended Methods of Soldering for Flat Packages

•

Table 2.1 lists the recommended method of soldering flat packages. If you have

any question or request, please refer to “IC PACKAGE MANUAL” or contact

your local offices.

•

For overall heating method, recommended mounting methods and

conditions after opening the pack differ depending on products to be

used. See Table 2.2 and 2.3 for the details.

•

For locally heating a lead part, soldering iron method is

recommended. For other localized heating methods, refer to “IC

PACKAGE MANUAL” or contact your Toshiba local offices.

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