Datasets:

ParsaVictor
/

pcb-solder-defect-detection

Error code:   DatasetGenerationError
Exception:    UnicodeDecodeError
Message:      'utf-8' codec can't decode byte 0xff in position 0: invalid start byte
Traceback:    Traceback (most recent call last):
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1835, in _prepare_split_single
                  for key, table in generator:
                                    ^^^^^^^^^
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 621, in wrapped
                  for item in generator(*args, **kwargs):
                              ~~~~~~~~~^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/packaged_modules/text/text.py", line 98, in _generate_tables
                  batch = f.read(self.config.chunksize)
                File "/usr/local/lib/python3.14/site-packages/datasets/utils/file_utils.py", line 838, in read_with_retries
                  out = read(*args, **kwargs)
                File "<frozen codecs>", line 325, in decode
              UnicodeDecodeError: 'utf-8' codec can't decode byte 0xff in position 0: invalid start byte
              
              The above exception was the direct cause of the following exception:
              
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 1379, in compute_config_parquet_and_info_response
                  parquet_operations, partial, estimated_dataset_info = stream_convert_to_parquet(
                                                                        ~~~~~~~~~~~~~~~~~~~~~~~~~^
                      builder, max_dataset_size_bytes=max_dataset_size_bytes
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  )
                  ^
                File "/src/services/worker/src/worker/job_runners/config/parquet_and_info.py", line 956, in stream_convert_to_parquet
                  builder._prepare_split(split_generator=splits_generators[split], file_format="parquet")
                  ~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1702, in _prepare_split
                  for job_id, done, content in self._prepare_split_single(
                                               ~~~~~~~~~~~~~~~~~~~~~~~~~~^
                      gen_kwargs=gen_kwargs, job_id=job_id, **_prepare_split_args
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                  ):
                  ^
                File "/usr/local/lib/python3.14/site-packages/datasets/builder.py", line 1887, in _prepare_split_single
                  raise DatasetGenerationError("An error occurred while generating the dataset") from e
              datasets.exceptions.DatasetGenerationError: An error occurred while generating the dataset

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text string
path: .
train: images/train
val: images/val
test: images/test
nc: 9
names:
- insufficient_solder
- excess_solder
- solder_bridge
- solder_void
- missing_component
- shifted_component
- burn
- physical_damage
- oxidation
source,file,reason
neazu_solder,2471100ETW__20240722130146012_jpg.jpg,train: defect-free image beyond the background cap
neazu_solder,2471100ETZ__20240722131801038_jpg.jpg,train: defect-free image beyond the background cap
neazu_solder,2471100EPR__20240722122928034_jpg.jpg,train: defect-free image beyond the background cap
neazu_solder,2471100ET4__20240722130058086_jpg.jpg,train: defect-free image beyond the background cap
sssssc_assembly,filp_0020_00_jpg.jpg,"mirrored/rotated duplicate, group is in val"
sssssc_assembly,filp_0026_00_jpg.jpg,"mirrored/rotated duplicate, group is in test"
sssssc_assembly,filp_0034_00_jpg.jpg,"mirrored/rotated duplicate, group is in val"
sssssc_assembly,filp_0037_00_jpg.jpg,"mirrored/rotated duplicate, group is in test"
sssssc_assembly,filp_0037_01_jpg.jpg,"mirrored/rotated duplicate, group is in test"
{
"ok": true,
"errors": [],
"n_errors": 0,
"warnings": [
"val: class 'oxidation' has only 0 boxes (its metric will be noisy or missing)",
"test: class 'oxidation' has only 0 boxes (its metric will be noisy or missing)"
],
"splits": {
"train": {
"files": 3836,
"boxes": 12704,
"empty_files": 344,
"boxes_under_6px": 6,
"per_class": {
"insufficient_solder": 2370,
"excess_solder": 1550,
"solder_bridge": 4160,
"solder_void": 794,
"missing_component": 948,
"shifted_component": 450,
"burn": 450,
"physical_damage": 1152,
"oxidation": 830
}
},
"val": {
"files": 687,
"boxes": 734,
"empty_files": 433,
"boxes_under_6px": 0,
"per_class": {
"insufficient_solder": 187,
"excess_solder": 111,
"solder_bridge": 181,
"solder_void": 104,
"missing_component": 74,
"shifted_component": 31,
"burn": 31,
"physical_damage": 15,
"oxidation": 0
}
},
"test": {
"files": 686,
"boxes": 663,
"empty_files": 427,
"boxes_under_6px": 0,
"per_class": {
"insufficient_solder": 186,
"excess_solder": 115,
"solder_bridge": 181,
"solder_void": 28,
"missing_component": 74,
"shifted_component": 31,
"burn": 32,
"physical_damage": 16,
"oxidation": 0
}
}
}
}
Soldering / assembly defects (after assembly)
=============================================
classes: ['insufficient_solder', 'excess_solder', 'solder_bridge', 'solder_void', 'missing_component', 'shifted_component', 'burn', 'physical_damage', 'oxidation']

source images groups train/val/test images
sssssc_assembly 826 487 619/103/104
numeric123 762 175 571/96/95
neazu_solder 158 157 118/20/20
zurab_bga 166 143 166/0/0
vattipalli 78 46 64/7/7
cv_solder_splash 29 6 23/3/3

split files empty insufficient_s excess_solder solder_bridge solder_void missing_compon shifted_compon burn physical_damag oxidation

End of preview.

PCB Solder & Assembly Defect Detection Dataset

A YOLO-format object detection dataset for finding soldering and assembly defects on populated PCBs (after components are placed and soldered) — void, insufficient/excess solder, bridging, missing or shifted components, burns, and more.

This dataset powers ParsaVictor/pcb-solder-defect-detection-yolo26, part of the PCB Inspection Suite.

Why this dataset is different

Solder/assembly defect data is far scarcer online than bare-board defect data, and much of what exists is either tiny, synthetic, or heavily duplicated across re-uploads. This dataset combines several independent real-world sources (assembly-line photos, close-up solder-joint photos, and a dedicated solder-splash set), carefully deduplicated and manually reviewed, with test/val kept as real, unaltered photographs.

Classes (9)

Class	# instances
solder_bridge	4,522
insufficient_solder	2,743
excess_solder	1,776
physical_damage	1,183
missing_component	1,096
solder_void	926
oxidation	830
burn	513
shifted_component	512

Splits

Split	Images
train	3,836
val	687
test	686

Format

Standard YOLO format:

images/{train,val,test}/*.jpg
labels/{train,val,test}/*.txt   # class_id x_center y_center width height (normalized)
data.yaml

Quick start

from ultralytics import YOLO

model = YOLO("yolo26m.pt")
model.train(data="data.yaml", imgsz=800, epochs=150)

from huggingface_hub import snapshot_download
path = snapshot_download(repo_id="ParsaVictor/pcb-solder-defect-detection", repo_type="dataset")

Model trained on this data: pcb-solder-defect-detection-yolo26
Sibling dataset: pcb-bare-board-defect-detection
Sibling dataset: pcb-component-detection
Full suite overview: pcb-inspection-suite

License / attribution

Released for research and development use. This dataset merges multiple real-world solder/assembly image sources with manual review and deduplication. Contact the author before any commercial redistribution of the full merged package. See LICENSE.md.