{Ball|Sphere|Round} Grid {Array|Range|Variety|Selection} {rework|remodel|revamp} {is one of|is among|is just one of} {the most|one of the most} {challenging|difficult|tough} {procedures|treatments} {performed|carried out|done|executed} at {assembly|setting up} {facilities|centers} {and|as well as|and also} {repair|repair work|repair service|fixing} depots {around the world|worldwide|around the globe|all over the world}. Doing it {right|best|ideal|appropriate} depends in {large|big|huge} {part|component} on the {skills|abilities} {and|as well as|and also} {knowledge|understanding|expertise} of the rework {technician|specialist|service technician|professional}. That's why we {say|state|claim} that BGA {rework|remodel|revamp} is {mostly|mainly|primarily} {science|scientific research}, with {a big|a huge|a large} {slice|piece} of art {thrown in|included}!

{Procedures|Treatments} for BGA {rework|remodel|revamp} are {well-defined|distinct} {and|as well as|and also} {long|lengthy} {established|developed}, {but|however|yet} there are {six|6} {common|typical|usual} {mistakes|errors|blunders}. These {mistakes|errors|blunders} can be {costly|expensive|pricey} {leading to|resulting in|causing|bring about} the following:

1. {Excessive|Extreme|Too much} solder joint {voiding|nullifying|invalidating}
This is {often|frequently|typically|commonly|usually} {due to|because of|as a result of} {incorrect|inaccurate|wrong} solder paste {selection|choice|option} or {process|procedure} {parameters|specifications|criteria} {and|as well as|and also} can {compromise|jeopardize|endanger} the {integrity|stability|honesty} of the {attachment|accessory|add-on} {and|as well as|and also} {require|need|call for} {additional|extra|added} rework, or {result in|lead to|cause} {rejection|being rejected|denial} if {the voiding|deep space} {is over|mores than} 25%.

2. BGA Pad {damage|damages} {during|throughout} the BGA {removal|elimination} {process|procedure}
This is {sometimes|in some cases|often|occasionally} {an unavoidable|an inevitable|an inescapable} {hazard|risk|danger|threat}, {and|as well as|and also} it's {made worse|worsened|intensified} when conformal {coatings|coverings|finishings|finishes|layers} {and|as well as|and also} underfill are {used|utilized|made use of}. {Repairing|Fixing} {damaged|harmed} BGA pads is {a time-consuming|a lengthy|a taxing} {major|significant} {headache|migraine|frustration} worth {avoiding|preventing|staying clear of}.

3. {Incorrect|Inaccurate|Wrong} BGA {orientation|positioning|alignment} or joint {bridging|connecting|linking}.
This {means|implies|indicates|suggests} {additional|extra|added} rework thermal cycles, {and|as well as|and also} the {increased|enhanced|boosted|raised} {risk|danger|threat} of {damage|damages} with each {successive|succeeding} application of {heat|warm|warmth}.

These {problems|issues|troubles} are {preventable|avoidable}. {Let|Allow}'s {look at|take a look at|check out|consider} the 6 {Most|Many|A Lot Of|The Majority Of} {Common|Typical|Usual} {Mistakes|Errors|Blunders} in BGA Rework {and|as well as|and also} {how|exactly how|just how} you can {avoid|prevent} them!

1. {Inadequate|Insufficient|Poor} {Operator|Driver} Training
We {can't|can not} {emphasize|highlight|stress} this {enough|sufficient|adequate}! BGA {rework|remodel|revamp} {technicians|specialists|service technicians|professionals} {must|should|need to|have to} be {fully|completely|totally} {trained|educated}, their {skills|abilities} {practiced|exercised} {and|as well as|and also} {developed|established|created}. They {must|should|need to|have to} {understand|comprehend|recognize} the {materials|products} they're {working with|dealing with|collaborating with}, the {tools|devices}, the {process|procedure} {steps|actions}, {and|as well as|and also} the {interrelationship|correlation|affiliation} of all {factors|elements|aspects|variables}.

They {must|should|need to|have to} have the {skills|abilities} to {evaluate|assess|examine|review} {and|as well as|and also} '{size up|measure|evaluate}' a BGA {rework|remodel|revamp} {situation|circumstance|scenario} knowledgeably {and|as well as|and also} {skillfully|masterfully} {before|prior to} {commencing|beginning|starting} rework. {And|As well as|And also} they {must|should|need to|have to} {be able to|have the ability to} {recognize|acknowledge|identify} the {subtle|refined}, {tell-tale|telltale} {signs|indications|indicators} {indicating|suggesting|showing} the {process|procedure} is off-track.

2. {Inappropriate|Unsuitable|Improper|Unacceptable} {Equipment|Devices|Tools} {Selection|Choice|Option}
It's an old {saying|stating|claiming}, {but|however|yet} {true|real}, you {need|require} the right {tools|devices} to do the {job|task|work} {properly|correctly|appropriately|effectively}. For BGA {rework|remodel|revamp}, the {equipment|devices|tools} {used|utilized|made use of} {must|should|need to|have to} have the {sophistication|elegance|class|refinement}, the {flexibility|versatility|adaptability}, {and|as well as|and also} the {capability|ability|capacity} to {sustain|maintain} {a controlled|a regulated}, {predictable|foreseeable} {and|as well as|and also} repeatable {process|procedure}.

This {includes|consists of} closed-loop thermal {sensing|noticing|picking up} {and|as well as|and also} control, the {robustness|toughness|effectiveness} to be able to {deliver|provide|supply} {heat|warm|warmth} as the {process|procedure} {requires|needs|calls for}, {and|as well as|and also} {product|item} handling {capabilities|abilities|capacities} for {removal|elimination} {and|as well as|and also} {replacement|substitute}. {Use|Utilize|Make use of} {the most|one of the most} {capable|qualified} {equipment|devices|tools} {available|offered|readily available}; this is not {an area|a location} to {cut|reduce} {corners|edges}.

3. Poor {Profile|Account} {Development|Advancement|Growth}
The BGA {rework|remodel|revamp} {profile|account} is as {important|essential|crucial|vital} as the {assembly|setting up} reflow {profile|account}, {and|as well as|and also} {in most cases|in many cases|for the most part|most of the times} {duplicates|replicates} it. Without it, you {won't|will not} {achieve|accomplish|attain} {a successful|an effective} {and|as well as|and also} repeatable BGA {rework|remodel|revamp} {process|procedure}.

A poorly-developed thermal {profile|account} can {result in|lead to|cause} {damage|damages} to the {assembly|setting up} or BGA {component|element|part} {requiring|needing|calling for} {additional|extra|added} rework cycles to the {same|exact same|very same} {site|website}, {and|as well as|and also} {damage|damages} or reflow of {adjacent|nearby|surrounding} {components|elements|parts}. {Good|Great|Excellent} {profiles|accounts} {must|should|need to|have to} be {carefully|thoroughly|very carefully|meticulously} {developed|established|created} {using|utilizing|making use of} {correct|appropriate|right|proper} thermocouple {placement|positioning} {and|as well as|and also} {analysis|evaluation} of the {data|information} that they {provide|offer|supply|give}.

4. Improper {Preparation|Prep work}
{A professional|An expert|A specialist} painter {knows|understands|recognizes} that {a good|a great|an excellent}, {lasting|long lasting|enduring|long-term} paint {job|task|work} is 90% {preparation|prep work}. {Similarly|Likewise|In a similar way}, {before|prior to} the {first|very first|initial} {heat|warm|warmth} cycle is {applied to|put on|related to} a BGA rework {site|website}, there's {a lot of|a great deal of} {preparation|prep work} {needed|required} if the {process|procedure} is {going to|mosting likely to} be done right.

This {includes|consists of} {baking|cooking} out moisture from the BGA {device|gadget|tool} {and|as well as|and also} the board {assembly|setting up} {to prevent|to avoid|to stop} 'pop-corning' {and|as well as|and also} {other|various other} {problems|issues|troubles} {and|as well as|and also} {removal|elimination} or {protection|security|defense} of {nearby|close-by|neighboring} {heat|warm|warmth} {sensitive|delicate} {components|elements|parts} to {avoid|prevent|stay clear of} {damage|damages} or {inadvertent|unintended|unintentional} reflow.

The right {decisions|choices} {need|require} to be made {in advance|ahead of time|beforehand}, such as {whether or not|whether} to {use|utilize|make use of} solder paste, {choosing|selecting|picking} the {right|best|ideal|appropriate} solder paste {stencil|pattern}, {and|as well as|and also} {choosing|selecting|picking} the {right|best|ideal|appropriate} chemistries {and|as well as|and also} alloys.

There's {plenty of|lots of|a lot of} {preparation|prep work} to do, {and|as well as|and also} do right, {before|prior to} the {actual|real} rework cycle {begins|starts}. This {includes|consists of} {an accurate|a precise|an exact} {assessment|evaluation|analysis} of such {things|points} as solder {ball|sphere|round} {size|dimension}; {device|gadget|tool} {and|as well as|and also} {ball|sphere|round} co-planarity; solder mask {damage|damages} {and|as well as|and also} {missing|missing out on} or {contaminated|polluted|infected} pads at the PCB {site|website}.

5. {Collateral|Security} {Heat|Warm|Warmth} {Damage|Damages}
Reflow of {adjacent|nearby|surrounding} {component|element|part} solder {connections|links} {results in|leads to|causes} oxidation, de-wetting, pad {and|as well as|and also} lead {damage|damages}, wicking, {starved|deprived} joints, {component|element|part} {damage|damages}, {and|as well as|and also} {other|various other} {issues|problems|concerns} that can {create|produce|develop} a host of {new|brand-new} rework {problems|issues|troubles}.

The {technician|specialist|service technician|professional} {must|should|needs to|has to} be {constantly|continuously|regularly|frequently} {aware of|familiar with|knowledgeable about} the {effect|impact|result} of {heat|warm|warmth} not {only|just} on the target BGA {device|gadget|tool}, {but|however|yet} {also|likewise|additionally} {how|exactly how|just how} it is {affecting|impacting|influencing} {other|various other} {components|elements|parts} {adjacent to|beside} it, on both sides of the {assembly|setting up}. The {goal|objective} is to {minimize|reduce|lessen|decrease} {heat|warm|warmth} {migration|movement} {beyond|past} the BGA {component|element|part} being {reworked|remodelled|revamped}, {and|as well as|and also} this is {a function|a feature} of {a well-developed|a strong} {profile|account} {and|as well as|and also} {tight|limited} {process|procedure} control.

6. {Insufficient|Inadequate|Not Enough} Post-Placement {Inspection|Evaluation|Assessment|Examination}
The {world|globe} {beneath|below|underneath|under} a BGA {component|element|part} is {a hidden|a covert|a concealed|a surprise} {mysterious|mystical|strange} {place|location|area}, {but|however|yet} not from today's X-ray {inspection|evaluation|assessment|examination} {machines|devices|makers|equipments}. {Problems|Issues|Troubles} such as {excessive|extreme|too much} {voiding|nullifying|invalidating} {and|as well as|and also} {poor|bad|inadequate} {placement|positioning} or {alignment|positioning|placement} are {immediately|instantly|right away|promptly|quickly} {detectable|noticeable|obvious|observable} with X-ray {inspection|evaluation|assessment|examination}.

{But|However|Yet} {just like|much like|similar to} a Radar {operator|driver}, an X-ray system {user|individual|customer} {needs|requires} {proper|appropriate|correct} training to {correctly|properly|appropriately} {interpret|translate|analyze} {and|as well as|and also} {understand|comprehend|recognize} the {image|picture|photo} that the {machine|device|maker|equipment} is {providing|offering|supplying|giving}. The {complexity|intricacy} of the BGA {component|element|part} {and|as well as|and also} the {different|various} {variations|variants} in the X-ray {image|picture|photo} {demand|need} it if {maximum|optimum} {benefit|advantage} is to be {obtained|acquired|gotten} from this {significant|considerable|substantial} - {and|as well as|and also} {indispensable|essential|important|vital|crucial} - {equipment|devices|tools} {investment|financial investment}.

{Avoiding|Preventing|Staying clear of} the 6 {Most|Many|A Lot Of|The Majority Of} {Common|Typical|Usual} {Mistakes|Errors|Blunders} in BGA Rework is {the best|the very best|the most effective} {way|method|means} to {ensure|guarantee|make sure|make certain} {a successful|an effective}, {robust|durable}, {and|as well as|and also} repeatable {process|procedure} with {fewer|less} {headaches|migraines|frustrations}, {higher|greater} {yields|returns}, {and|as well as|and also} {reduced|decreased|minimized|lowered} {costs|expenses|prices} for {a better|a much better} {bottom line|profits}.