{"id":3241,"date":"2026-10-09T02:00:00","date_gmt":"2026-10-09T02:00:00","guid":{"rendered":"https:\/\/swesd.com\/?p=3241"},"modified":"2026-10-08T13:57:35","modified_gmt":"2026-10-08T13:57:35","slug":"jedec-tray-pocket-orientation","status":"publish","type":"post","link":"https:\/\/swesd.com\/tr\/blog\/jedec-tray-pocket-orientation\/","title":{"rendered":"JEDEC Tray Pocket Orientation for Automated IC Handling"},"content":{"rendered":"

JEDEC tray pocket orientation is the relationship between the carrier reference edge, each pocket, the component’s identification feature and the machine’s loading direction. Establish that relationship from the exact tray drawing, component packing information and equipment recipe before releasing an automated process. A rectangular tray can enter a fixture successfully while its devices are rotated incorrectly. For electronics manufacturers, the practical objective is a documented orientation chain that receiving, kitting, loading and inspection can follow without guessing from a photograph. This guide focuses on that chain rather than tray dimensions, thermal ratings or a general material specification.<\/p>\n

Separate tray orientation from device orientation<\/h2>\n

Treat the carrier and the component as two related coordinate systems. The carrier drawing defines the reference features used to position the tray. The device documentation defines the package reference and the required relationship of that reference to the carrier. An equipment recipe then translates those instructions into pickup coordinates and rotation. A correct answer for one of those systems does not automatically resolve the others.<\/p>\n

A tray can be mechanically asymmetric while its pocket array looks repetitive. Conversely, a visually distinctive molded feature may not be the approved locating datum. Ask which features the machine physically uses and which features an inspector is instructed to observe. Do not add a new rule such as always pointing a notch toward the operator unless the responsible drawings and equipment instructions actually support it.<\/p>\n

Texas Instruments provides an example of component-specific packing information through its carrier material lookup<\/a>. The identified lookup describes a chamfer-to-pin-one relationship for that packing configuration. This is an example of the evidence to obtain; it is not permission to apply the same relationship to every component, supplier or tray revision. Keep the downloaded part-specific record with the approved loading instruction.<\/p>\n

Build a reference chain before programming pickup<\/h2>\n

Start with the device part number, package drawing, carrier part number and carrier revision. Obtain the supplier’s packed-unit orientation instruction, not only an empty-tray photograph. Then identify the machine nest, its reference edge and the direction in which a tray enters. A short annotated photograph of an accepted sample can make the relationship easier to teach, but the photograph should point back to the controlled documents.<\/p>\n

Define an origin and a row-and-column convention that the receiving system and machine team both understand. Record whether numbering is viewed from above the tray, from the machine entrance or from another documented position. A coordinate written without a viewing direction can be interpreted twice. Avoid an ambiguous instruction such as the first pocket on the left when the operator can stand on either side of a trolley.<\/p>\n

For a mixed-device operation, keep the orientation record attached to the specific part and recipe combination. Similar package outlines do not establish identical marking locations or rotation requirements. A feeder setup approved for one device should not become the default for another solely because the carriers share an external outline. The SWESD IC tray product<\/a> provides a starting point for discussing carrier geometry; exact pocket and machine suitability still require a matched drawing and trial.<\/p>\n

\"Close
Close view of the SWESD IC tray corner and pocket rows. Product-reference illustration; no dimensions or performance are established by the image.<\/figcaption><\/figure>\n

Use a release table that exposes missing evidence<\/h2>\n

The table below organizes the evidence review. It does not prescribe universal notch positions, tolerances or package rotations. Populate it with the documents and accepted samples for the actual line. Keep unresolved items visible so purchasing and production do not quietly substitute a similar carrier during a delivery shortage.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n
Review item<\/th>\nRequired evidence<\/th>\nHold condition<\/th>\n<\/tr>\n<\/thead>\n
Carrier reference<\/td>\nControlled drawing and locating feature<\/td>\nUnknown revision or unapproved substitute<\/td>\n<\/tr>\n
Device reference<\/td>\nPart-specific packing instruction<\/td>\nUnresolved pin-one relationship<\/td>\n<\/tr>\n
Viewing direction<\/td>\nDocumented operator and machine view<\/td>\nAmbiguous left or right instruction<\/td>\n<\/tr>\n
Recipe mapping<\/td>\nOrigin, row and column convention<\/td>\nUnverified pickup or final rotation<\/td>\n<\/tr>\n
Partial tray<\/td>\nApproved empty-pocket procedure<\/td>\nUndefined restart or replenishment<\/td>\n<\/tr>\n
Repacking<\/td>\nTraceable transfer and orientation check<\/td>\nUnidentified mixed or rotated lot<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

This review distinguishes a purchasing description from an approved setup. A quotation stating JEDEC tray or IC tray does not supply a complete orientation instruction. The supplier should identify the actual drawing and describe any packing convention that the customer must retain after opening, repacking or splitting a lot. If the supplier cannot resolve an orientation feature, return the question to the component or carrier technical owner.<\/p>\n

Check pocket fit without inferring orientation from fit<\/h2>\n

Check that the selected device can sit in the intended pocket without unacceptable movement, contact or interference under the approved conditions. Perform the check using accepted samples and the actual loading approach. Do not force a package into a pocket or treat friction as a reliable orientation feature. A package may sit comfortably in more than one rotation even though only one rotation is correct for the downstream process.<\/p>\n

Consider how the pickup tool approaches the package. The orientation instruction should preserve access to the approved pickup area and avoid an interference that is hidden when the tray is viewed from above. Confirm clearance with the equipment owner rather than inventing a universal nozzle clearance. Where retention or dimensional condition is uncertain, use the separate JEDEC tray warpage inspection guide<\/a> to organize the condition review.<\/p>\n

Ask receiving inspection to distinguish carrier damage from a packing error. A bent rim, debris in a pocket or a damaged locating feature can prevent repeatable positioning. A clean, dimensionally acceptable carrier containing incorrectly rotated devices is a different problem. Separate those findings in the disposition record so the corrective action addresses the actual cause instead of replacing good trays without resolving the packing instruction.<\/p>\n

Validate the machine recipe with an accepted sample<\/h2>\n

Run the equipment validation under the approved commissioning procedure. Begin with a configuration that allows the team to observe tray location, indexing and device recognition safely. The responsible machine engineer should select the trial method and decide whether representative devices, accepted training parts or another controlled sample are appropriate. This article does not authorize bypassing interlocks or placing hands in a moving machine.<\/p>\n

Check more than the first pocket. Include positions that can reveal a row-and-column interpretation error, a shifted origin or an incorrect end-of-array assumption. Record the locations selected and why they represent the intended process. Inspect how the equipment handles an empty pocket and a partly used tray. The instruction should explain whether the machine skips, stops or requests intervention, and which person is allowed to restart it.<\/p>\n

A successful pickup is only part of the result. Verify that the receiving operation obtains the package in the required final orientation. Follow the unit through the handoff rather than assuming the pickup head’s motion leaves the reference unchanged. If vision software performs a rotation correction, document when that correction occurs and what happens when the reference cannot be recognized. Preserve the approved recipe version and verification record together.<\/p>\n

Prevent orientation loss during manual transfers<\/h2>\n

Orientation mistakes often enter between accepted automated steps. A tray may be turned to fit a staging shelf, a partial lot may be moved to another carrier, or an operator may replenish the line from an opened shipment. Map those transfers and decide which ones require a positive orientation check. Write a short instruction for each transfer instead of relying on a general warning to be careful.<\/p>\n

Use a designated viewing position when teaching the task. Show the carrier feature, the device feature and the expected relationship in the same view. If labels are used, place them where they remain visible without obstructing locating surfaces, pockets or machine access. Obtain approval for the label material and location. The JEDEC tray labeling guide<\/a> can support that discussion where its approved route and application match the line.<\/p>\n

Keep unverified repacked lots separate from accepted material. Preserve the original shipment identity and record who performed the transfer. When the packing relationship is uncertain, stop release of the affected lot and obtain a disposition; do not rotate all devices according to a memory of another supplier’s trays. This is particularly important when components look symmetric and the identifying feature is small or inconsistent in photographs.<\/p>\n

\"Empty
Empty SWESD IC tray beside a closed inspection notebook. Product-reference illustration; no dimensions or performance are established by the image.<\/figcaption><\/figure>\n

Keep electrostatic handling controls separate and active<\/h2>\n

Orientation control does not replace ESD protection. A team can position every package correctly and still expose it during opening or transfer. Review the carrier, work area, personnel practices and handling route with the ESD program owner. The EOS\/ESD Association principles of control<\/a> explain why handling materials and grounding practices are considered together rather than judging protection from appearance.<\/p>\n

Do not infer electrical performance from a black tray, a surface texture or the illustration in this article. Obtain the evidence required for the specified application and retain it alongside the mechanical approval. The educational video below provides ESD background for the manual handling stages; it is not a demonstration of a universal JEDEC orientation rule or a substitute for the device supplier’s packing information.<\/p>\n