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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001040470-06-000024.txt : 20060421
<SEC-HEADER>0001040470-06-000024.hdr.sgml : 20060421
<ACCEPTANCE-DATETIME>20060421165711
ACCESSION NUMBER:		0001040470-06-000024
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060420
FILED AS OF DATE:		20060421
DATE AS OF CHANGE:		20060421

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AEHR TEST SYSTEMS
		CENTRAL INDEX KEY:			0001040470
		STANDARD INDUSTRIAL CLASSIFICATION:	INSTRUMENTS FOR MEAS & TESTING OF ELECTRICITY & ELEC SIGNALS [3825]
		IRS NUMBER:				942424084
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			0531

	BUSINESS ADDRESS:	
		STREET 1:		400 KATO TERRACE
		CITY:			FREMONT
		STATE:			CA
		ZIP:			94539
		BUSINESS PHONE:		5106239400

	MAIL ADDRESS:	
		STREET 1:		400 KATO TERRACE
		CITY:			FREMONT
		STATE:			CA
		ZIP:			94539

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BUCK CARL N
		CENTRAL INDEX KEY:			0001243930

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-22893
		FILM NUMBER:		06773243

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		510-623-9400

	MAIL ADDRESS:	
		STREET 1:		C/O AEHR TEST SYSTEMS
		STREET 2:		400 KATO TERRACE
		CITY:			FREMONT
		STATE:			CA
		ZIP:			94539
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-04-20</periodOfReport>

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    <issuer>
        <issuerCik>0001040470</issuerCik>
        <issuerName>AEHR TEST SYSTEMS</issuerName>
        <issuerTradingSymbol>AEHR</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001243930</rptOwnerCik>
            <rptOwnerName>BUCK CARL N</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O AEHR TEST SYSTEMS</rptOwnerStreet1>
            <rptOwnerStreet2>400 KATO TERRACE</rptOwnerStreet2>
            <rptOwnerCity>FREMONT</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94539</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP,Marketing and Contactor BU</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

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                <value>Common Stock</value>
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            <transactionDate>
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            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>100</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>6.21</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
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            <transactionTimeliness>
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            <transactionAmounts>
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                <transactionPricePerShare>
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        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
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            <transactionDate>
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            <transactionCoding>
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            <transactionTimeliness>
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            <transactionAmounts>
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    <ownerSignature>
        <signatureName>CARL N. BUCK</signatureName>
        <signatureDate>2006-04-21</signatureDate>
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</ownershipDocument>
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