Q: How are wafers kept clean while in process?

Keeping WAFE rs Clean While In Process • Most air flow in a clean room is down. • Gravity also sends suspended particles in the air down. • WAFE rs that are face-up will accumulate more particulate contamination than WAFE rs which are face-down. • 2 solutions: – Place WAFE rs in process (WIP) face down in WAFE r trays while in

Q: How are wafer Tweezers used to handle wafers?

WAFE r Handling • WAFE rs are never handled directly by hand. – Only WAFE r tweezers or vacuum wands contact WAFE rs in process. • WAFE r tweezers: – Have a sharpened scoop, shovel, or blade end which is designed to slide underneath the rounded edge of a WAFE r. – Have a blunt pincer or foot which clamps the WAFE r against the blade.

Q: Where is the H Bar on a wafer?

– WAFE r cassettes are used to load a set of WAFE rs into many different types of processing equipment. To index the cassette to the handler, an H-bar is located on the BOTTOM of each cassette. – The good (top) side of each WAFE r should face AWAY from the H-bar. • Cassette material matters! – Use only PFA cassettes for wet etching or cleaning.

Question 1

How are wafers kept clean while in process?

Accepted Answer

Keeping WAFErs Clean While In Process • Most air flow in a clean room is down. • Gravity also sends suspended particles in the air down. • WAFErs that are face-up will accumulate more particulate contamination than WAFErs which are face-down. • 2 solutions: – Place WAFErs in process (WIP) face down in WAFEr trays while in

Question 2

What is the Hello to your wave operator manual?

Accepted Answer

“Hello” Welcome to your Wave Operator Manual. This manual has been designed to provide you with specific information regarding the safe operation of the Wave work assist vehicle. As you will see in this manual, we’ve made it easy to use and understand, as well as informative.

Question 3

How are wafer Tweezers used to handle wafers?

Accepted Answer

WAFEr Handling • WAFErs are never handled directly by hand. – Only WAFEr tweezers or vacuum wands contact WAFErs in process. • WAFEr tweezers: – Have a sharpened scoop, shovel, or blade end which is designed to slide underneath the rounded edge of a WAFEr. – Have a blunt pincer or foot which clamps the WAFEr against the blade.

Question 4

Where is the H Bar on a wafer?

Accepted Answer

– WAFEr cassettes are used to load a set of WAFErs into many different types of processing equipment. To index the cassette to the handler, an H-bar is located on the BOTTOM of each cassette. – The good (top) side of each WAFEr should face AWAY from the H-bar. • Cassette material matters! – Use only PFA cassettes for wet etching or cleaning.

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Frequently Asked Questions

How are wafers kept clean while in process?

What is the Hello to your wave operator manual?

How are wafer Tweezers used to handle wafers?

Where is the H Bar on a wafer?